static int __init cpubw_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct devfreq_dev_profile *p = &cpubw_profile;
struct devfreq *df;
u32 *data, ports[MAX_PATHS * 2];
int ret, len, i;
if (of_find_property(dev->of_node, PROP_PORTS, &len)) {
len /= sizeof(ports[0]);
if (len % 2 || len > ARRAY_SIZE(ports)) {
dev_err(dev, "Unexpected number of ports\n");
return -EINVAL;
}
ret = of_property_read_u32_array(dev->of_node, PROP_PORTS,
ports, len);
if (ret)
return ret;
num_paths = len / 2;
} else {
return -EINVAL;
}
for (i = 0; i < num_paths; i++) {
bw_levels[0].vectors[i].src = ports[2 * i];
bw_levels[0].vectors[i].dst = ports[2 * i + 1];
bw_levels[1].vectors[i].src = ports[2 * i];
bw_levels[1].vectors[i].dst = ports[2 * i + 1];
}
bw_levels[0].num_paths = num_paths;
bw_levels[1].num_paths = num_paths;
if (of_find_property(dev->of_node, PROP_TBL, &len)) {
len /= sizeof(*data);
data = devm_kzalloc(dev, len * sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
p->freq_table = devm_kzalloc(dev,
len * sizeof(*p->freq_table),
GFP_KERNEL);
if (!p->freq_table)
return -ENOMEM;
ret = of_property_read_u32_array(dev->of_node, PROP_TBL,
data, len);
if (ret)
return ret;
for (i = 0; i < len; i++)
p->freq_table[i] = data[i];
p->max_state = len;
p->initial_freq = data[len-1];
}
bus_client = msm_bus_scale_register_client(&bw_data);
if (!bus_client) {
dev_err(dev, "Unable to register bus client\n");
return -ENODEV;
}
df = devfreq_add_device(dev, &cpubw_profile, "msm_cpufreq", NULL);
if (IS_ERR(df)) {
msm_bus_scale_unregister_client(bus_client);
return PTR_ERR(df);
}
return 0;
}
static int __devinit vkey_parse_dt(struct device *dev,
struct vkeys_platform_data *pdata)
{
struct device_node *np = dev->of_node;
struct property *prop;
int rc, val;
rc = of_property_read_string(np, "label", &pdata->name);
if (rc) {
dev_err(dev, "Failed to read label\n");
return -EINVAL;
}
printk("virtual kesy wangminrong %s\r\n",pdata->name);
rc = of_property_read_u32(np, "qcom,disp-maxx", &pdata->disp_maxx);
if (rc) {
dev_err(dev, "Failed to read display max x\n");
return -EINVAL;
}
rc = of_property_read_u32(np, "qcom,disp-maxy", &pdata->disp_maxy);
if (rc) {
dev_err(dev, "Failed to read display max y\n");
return -EINVAL;
}
rc = of_property_read_u32(np, "qcom,panel-maxx", &pdata->panel_maxx);
if (rc) {
dev_err(dev, "Failed to read panel max x\n");
return -EINVAL;
}
rc = of_property_read_u32(np, "qcom,panel-maxy", &pdata->panel_maxy);
if (rc) {
dev_err(dev, "Failed to read panel max y\n");
return -EINVAL;
}
prop = of_find_property(np, "qcom,key-codes", NULL);
if (prop) {
pdata->num_keys = prop->length / sizeof(u32);
pdata->keycodes = devm_kzalloc(dev,
sizeof(u32) * pdata->num_keys, GFP_KERNEL);
if (!pdata->keycodes)
return -ENOMEM;
rc = of_property_read_u32_array(np, "qcom,key-codes",
pdata->keycodes, pdata->num_keys);
if (rc) {
dev_err(dev, "Failed to read key codes\n");
return -EINVAL;
}
}
pdata->y_offset = VKEY_Y_OFFSET_DEFAULT;
rc = of_property_read_u32(np, "qcom,y-offset", &val);
if (!rc)
pdata->y_offset = val;
else if (rc != -EINVAL) {
dev_err(dev, "Failed to read y position offset\n");
return rc;
}
return 0;
}
/* DT parsing for haptics parameters */
static int qpnp_hap_parse_dt(struct qpnp_hap *hap)
{
struct spmi_device *spmi = hap->spmi;
struct property *prop;
const char *temp_str;
u32 temp;
int rc;
hap->timeout_ms = QPNP_HAP_TIMEOUT_MS_MAX;
rc = of_property_read_u32(spmi->dev.of_node,
"qcom,timeout-ms", &temp);
if (!rc) {
hap->timeout_ms = temp;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read timeout\n");
return rc;
}
hap->act_type = QPNP_HAP_LRA;
rc = of_property_read_string(spmi->dev.of_node,
"qcom,actuator-type", &temp_str);
if (!rc) {
if (strcmp(temp_str, "erm") == 0)
hap->act_type = QPNP_HAP_ERM;
else if (strcmp(temp_str, "lra") == 0)
hap->act_type = QPNP_HAP_LRA;
else {
dev_err(&spmi->dev, "Invalid actuator type\n");
return -EINVAL;
}
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read actuator type\n");
return rc;
}
if (hap->act_type == QPNP_HAP_LRA) {
hap->auto_res_mode = QPNP_HAP_AUTO_RES_ZXD_EOP;
rc = of_property_read_string(spmi->dev.of_node,
"qcom,lra-auto-res-mode", &temp_str);
if (!rc) {
if (strcmp(temp_str, "none") == 0)
hap->auto_res_mode = QPNP_HAP_AUTO_RES_NONE;
else if (strcmp(temp_str, "zxd") == 0)
hap->auto_res_mode = QPNP_HAP_AUTO_RES_ZXD;
else if (strcmp(temp_str, "qwd") == 0)
hap->auto_res_mode = QPNP_HAP_AUTO_RES_QWD;
else if (strcmp(temp_str, "max-qwd") == 0)
hap->auto_res_mode = QPNP_HAP_AUTO_RES_MAX_QWD;
else
hap->auto_res_mode = QPNP_HAP_AUTO_RES_ZXD_EOP;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read auto res mode\n");
return rc;
}
hap->lra_high_z = QPNP_HAP_LRA_HIGH_Z_OPT3;
rc = of_property_read_string(spmi->dev.of_node,
"qcom,lra-high-z", &temp_str);
if (!rc) {
if (strcmp(temp_str, "none") == 0)
hap->lra_high_z = QPNP_HAP_LRA_HIGH_Z_NONE;
else if (strcmp(temp_str, "opt1") == 0)
hap->lra_high_z = QPNP_HAP_LRA_HIGH_Z_OPT1;
else if (strcmp(temp_str, "opt2") == 0)
hap->lra_high_z = QPNP_HAP_LRA_HIGH_Z_OPT2;
else
hap->lra_high_z = QPNP_HAP_LRA_HIGH_Z_OPT3;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read LRA high-z\n");
return rc;
}
hap->lra_res_cal_period = QPNP_HAP_RES_CAL_PERIOD_MAX;
rc = of_property_read_u32(spmi->dev.of_node,
"qcom,lra-res-cal-period", &temp);
if (!rc) {
hap->lra_res_cal_period = temp;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read cal period\n");
return rc;
}
}
rc = of_property_read_string(spmi->dev.of_node,
"qcom,play-mode", &temp_str);
if (!rc) {
if (strcmp(temp_str, "direct") == 0)
hap->play_mode = QPNP_HAP_DIRECT;
else if (strcmp(temp_str, "buffer") == 0)
hap->play_mode = QPNP_HAP_BUFFER;
else if (strcmp(temp_str, "pwm") == 0)
hap->play_mode = QPNP_HAP_PWM;
else if (strcmp(temp_str, "audio") == 0)
hap->play_mode = QPNP_HAP_AUDIO;
else {
dev_err(&spmi->dev, "Invalid play mode\n");
return -EINVAL;
}
} else {
dev_err(&spmi->dev, "Unable to read play mode\n");
return rc;
}
hap->vmax_mv = QPNP_HAP_VMAX_MAX_MV;
rc = of_property_read_u32(spmi->dev.of_node,
"qcom,vmax-mv", &temp);
if (!rc) {
hap->vmax_mv = temp;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read vmax\n");
return rc;
}
hap->ilim_ma = QPNP_HAP_ILIM_MIN_MV;
rc = of_property_read_u32(spmi->dev.of_node,
"qcom,ilim-ma", &temp);
if (!rc) {
hap->ilim_ma = temp;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read ILim\n");
return rc;
}
hap->sc_deb_cycles = QPNP_HAP_DEF_SC_DEB_CYCLES;
rc = of_property_read_u32(spmi->dev.of_node,
"qcom,sc-deb-cycles", &temp);
if (!rc) {
hap->sc_deb_cycles = temp;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read sc debounce\n");
return rc;
}
hap->int_pwm_freq_khz = QPNP_HAP_INT_PWM_FREQ_505_KHZ;
rc = of_property_read_u32(spmi->dev.of_node,
"qcom,int-pwm-freq-khz", &temp);
if (!rc) {
hap->int_pwm_freq_khz = temp;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read int pwm freq\n");
return rc;
}
hap->wave_shape = QPNP_HAP_WAV_SQUARE;
rc = of_property_read_string(spmi->dev.of_node,
"qcom,wave-shape", &temp_str);
if (!rc) {
if (strcmp(temp_str, "sine") == 0)
hap->wave_shape = QPNP_HAP_WAV_SINE;
else if (strcmp(temp_str, "square") == 0)
hap->wave_shape = QPNP_HAP_WAV_SQUARE;
else {
dev_err(&spmi->dev, "Unsupported wav shape\n");
return -EINVAL;
}
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read wav shape\n");
return rc;
}
hap->wave_play_rate_us = QPNP_HAP_DEF_WAVE_PLAY_RATE_US;
rc = of_property_read_u32(spmi->dev.of_node,
"qcom,wave-play-rate-us", &temp);
if (!rc) {
hap->wave_play_rate_us = temp;
} else if (rc != -EINVAL) {
dev_err(&spmi->dev, "Unable to read play rate\n");
return rc;
}
if (hap->play_mode == QPNP_HAP_BUFFER)
rc = qpnp_hap_parse_buffer_dt(hap);
else if (hap->play_mode == QPNP_HAP_PWM)
rc = qpnp_hap_parse_pwm_dt(hap);
if (rc < 0)
return rc;
prop = of_find_property(spmi->dev.of_node,
"qcom,brake-pattern", &temp);
if (!prop) {
dev_err(&spmi->dev, "brake pattern not found");
} else if (temp != QPNP_HAP_BRAKE_PAT_LEN) {
dev_err(&spmi->dev, "Invalid length of brake pattern\n");
return -EINVAL;
} else
memcpy(hap->brake_pat, prop->value, QPNP_HAP_BRAKE_PAT_LEN);
hap->use_sc_irq = of_property_read_bool(spmi->dev.of_node,
"qcom,use-sc-irq");
if (hap->use_sc_irq) {
hap->sc_irq = spmi_get_irq_byname(hap->spmi,
NULL, "sc-irq");
if (hap->sc_irq < 0) {
dev_err(&spmi->dev, "Unable to get sc irq\n");
return hap->sc_irq;
}
}
return 0;
}
static int of_batterydata_read_lut(const struct device_node *np,
int max_cols, int max_rows, int *ncols, int *nrows,
int *col_legend_data, int *row_legend_data,
int *lut_data)
{
struct property *prop;
const __be32 *data;
int cols, rows, size, i, j, *out_values;
prop = of_find_property(np, "qcom,lut-col-legend", NULL);
if (!prop) {
pr_err("%s: No col legend found\n", np->name);
return -EINVAL;
} else if (!prop->value) {
pr_err("%s: No col legend value found, np->name\n", np->name);
return -ENODATA;
} else if (prop->length > max_cols * sizeof(int)) {
pr_err("%s: Too many columns\n", np->name);
return -EINVAL;
}
cols = prop->length/sizeof(int);
*ncols = cols;
data = prop->value;
for (i = 0; i < cols; i++)
*col_legend_data++ = be32_to_cpup(data++);
prop = of_find_property(np, "qcom,lut-row-legend", NULL);
if (!prop || row_legend_data == NULL) {
/* single row lut */
rows = 1;
} else if (!prop->value) {
pr_err("%s: No row legend value found\n", np->name);
return -ENODATA;
} else if (prop->length > max_rows * sizeof(int)) {
pr_err("%s: Too many rows\n", np->name);
return -EINVAL;
} else {
rows = prop->length/sizeof(int);
*nrows = rows;
data = prop->value;
for (i = 0; i < rows; i++)
*row_legend_data++ = be32_to_cpup(data++);
}
prop = of_find_property(np, "qcom,lut-data", NULL);
if (!prop) {
pr_err("prop 'qcom,lut-data' not found\n");
return -EINVAL;
}
data = prop->value;
size = prop->length/sizeof(int);
if (size != cols * rows) {
pr_err("%s: data size mismatch, %dx%d != %d\n",
np->name, cols, rows, size);
return -EINVAL;
}
for (i = 0; i < rows; i++) {
out_values = lut_data + (max_cols * i);
for (j = 0; j < cols; j++) {
*out_values++ = be32_to_cpup(data++);
pr_debug("Value = %d\n", *(out_values-1));
}
}
return 0;
}
static struct gpio_regulator_config *
of_get_gpio_regulator_config(struct device *dev, struct device_node *np)
{
struct gpio_regulator_config *config;
struct property *prop;
const char *regtype;
int proplen, gpio, i;
config = devm_kzalloc(dev,
sizeof(struct gpio_regulator_config),
GFP_KERNEL);
if (!config)
return ERR_PTR(-ENOMEM);
config->init_data = of_get_regulator_init_data(dev, np);
if (!config->init_data)
return ERR_PTR(-EINVAL);
config->supply_name = config->init_data->constraints.name;
if (of_property_read_bool(np, "enable-active-high"))
config->enable_high = true;
if (of_property_read_bool(np, "enable-at-boot"))
config->enabled_at_boot = true;
of_property_read_u32(np, "startup-delay-us", &config->startup_delay);
config->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0);
/* Fetch GPIOs. */
config->nr_gpios = of_gpio_count(np);
config->gpios = devm_kzalloc(dev,
sizeof(struct gpio) * config->nr_gpios,
GFP_KERNEL);
if (!config->gpios)
return ERR_PTR(-ENOMEM);
for (i = 0; i < config->nr_gpios; i++) {
gpio = of_get_named_gpio(np, "gpios", i);
if (gpio < 0)
break;
config->gpios[i].gpio = gpio;
}
/* Fetch states. */
prop = of_find_property(np, "states", NULL);
if (!prop) {
dev_err(dev, "No 'states' property found\n");
return ERR_PTR(-EINVAL);
}
proplen = prop->length / sizeof(int);
config->states = devm_kzalloc(dev,
sizeof(struct gpio_regulator_state)
* (proplen / 2),
GFP_KERNEL);
if (!config->states)
return ERR_PTR(-ENOMEM);
for (i = 0; i < proplen / 2; i++) {
config->states[i].value =
be32_to_cpup((int *)prop->value + (i * 2));
config->states[i].gpios =
be32_to_cpup((int *)prop->value + (i * 2 + 1));
}
config->nr_states = i;
of_property_read_string(np, "regulator-type", ®type);
if (!strncmp("voltage", regtype, 7))
config->type = REGULATOR_VOLTAGE;
else if (!strncmp("current", regtype, 7))
config->type = REGULATOR_CURRENT;
return config;
}
static int sirfsoc_uart_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct sirfsoc_uart_port *sirfport;
struct uart_port *port;
struct resource *res;
int ret;
struct dma_slave_config slv_cfg = {
.src_maxburst = 1,
};
struct dma_slave_config tx_slv_cfg = {
.dst_maxburst = 2,
};
const struct of_device_id *match;
match = of_match_node(sirfsoc_uart_ids, np);
sirfport = devm_kzalloc(&pdev->dev, sizeof(*sirfport), GFP_KERNEL);
if (!sirfport) {
ret = -ENOMEM;
goto err;
}
sirfport->port.line = of_alias_get_id(np, "serial");
sirf_ports[sirfport->port.line] = sirfport;
sirfport->port.iotype = UPIO_MEM;
sirfport->port.flags = UPF_BOOT_AUTOCONF;
port = &sirfport->port;
port->dev = &pdev->dev;
port->private_data = sirfport;
sirfport->uart_reg = (struct sirfsoc_uart_register *)match->data;
sirfport->hw_flow_ctrl =
of_property_read_bool(np, "uart-has-rtscts") ||
of_property_read_bool(np, "sirf,uart-has-rtscts") /* deprecated */;
if (of_device_is_compatible(np, "sirf,prima2-uart") ||
of_device_is_compatible(np, "sirf,atlas7-uart"))
sirfport->uart_reg->uart_type = SIRF_REAL_UART;
if (of_device_is_compatible(np, "sirf,prima2-usp-uart") ||
of_device_is_compatible(np, "sirf,atlas7-usp-uart")) {
sirfport->uart_reg->uart_type = SIRF_USP_UART;
if (!sirfport->hw_flow_ctrl)
goto usp_no_flow_control;
if (of_find_property(np, "cts-gpios", NULL))
sirfport->cts_gpio =
of_get_named_gpio(np, "cts-gpios", 0);
else
sirfport->cts_gpio = -1;
if (of_find_property(np, "rts-gpios", NULL))
sirfport->rts_gpio =
of_get_named_gpio(np, "rts-gpios", 0);
else
sirfport->rts_gpio = -1;
if ((!gpio_is_valid(sirfport->cts_gpio) ||
!gpio_is_valid(sirfport->rts_gpio))) {
ret = -EINVAL;
dev_err(&pdev->dev,
"Usp flow control must have cts and rts gpio");
goto err;
}
ret = devm_gpio_request(&pdev->dev, sirfport->cts_gpio,
"usp-cts-gpio");
if (ret) {
dev_err(&pdev->dev, "Unable request cts gpio");
goto err;
}
gpio_direction_input(sirfport->cts_gpio);
ret = devm_gpio_request(&pdev->dev, sirfport->rts_gpio,
"usp-rts-gpio");
if (ret) {
dev_err(&pdev->dev, "Unable request rts gpio");
goto err;
}
gpio_direction_output(sirfport->rts_gpio, 1);
}
usp_no_flow_control:
if (of_device_is_compatible(np, "sirf,atlas7-uart") ||
of_device_is_compatible(np, "sirf,atlas7-usp-uart"))
sirfport->is_atlas7 = true;
if (of_property_read_u32(np, "fifosize", &port->fifosize)) {
dev_err(&pdev->dev,
"Unable to find fifosize in uart node.\n");
ret = -EFAULT;
goto err;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "Insufficient resources.\n");
ret = -EFAULT;
goto err;
}
port->mapbase = res->start;
port->membase = devm_ioremap(&pdev->dev,
res->start, resource_size(res));
if (!port->membase) {
dev_err(&pdev->dev, "Cannot remap resource.\n");
ret = -ENOMEM;
goto err;
}
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {
dev_err(&pdev->dev, "Insufficient resources.\n");
ret = -EFAULT;
goto err;
}
port->irq = res->start;
sirfport->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(sirfport->clk)) {
ret = PTR_ERR(sirfport->clk);
goto err;
}
port->uartclk = clk_get_rate(sirfport->clk);
port->ops = &sirfsoc_uart_ops;
spin_lock_init(&port->lock);
platform_set_drvdata(pdev, sirfport);
ret = uart_add_one_port(&sirfsoc_uart_drv, port);
if (ret != 0) {
dev_err(&pdev->dev, "Cannot add UART port(%d).\n", pdev->id);
goto err;
}
sirfport->rx_dma_chan = dma_request_slave_channel(port->dev, "rx");
sirfport->rx_dma_items.xmit.buf =
dma_alloc_coherent(port->dev, SIRFSOC_RX_DMA_BUF_SIZE,
&sirfport->rx_dma_items.dma_addr, GFP_KERNEL);
if (!sirfport->rx_dma_items.xmit.buf) {
dev_err(port->dev, "Uart alloc bufa failed\n");
ret = -ENOMEM;
goto alloc_coherent_err;
}
sirfport->rx_dma_items.xmit.head =
sirfport->rx_dma_items.xmit.tail = 0;
if (sirfport->rx_dma_chan)
dmaengine_slave_config(sirfport->rx_dma_chan, &slv_cfg);
sirfport->tx_dma_chan = dma_request_slave_channel(port->dev, "tx");
if (sirfport->tx_dma_chan)
dmaengine_slave_config(sirfport->tx_dma_chan, &tx_slv_cfg);
if (sirfport->rx_dma_chan) {
hrtimer_init(&sirfport->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
sirfport->hrt.function = sirfsoc_uart_rx_dma_hrtimer_callback;
sirfport->is_hrt_enabled = false;
}
return 0;
alloc_coherent_err:
dma_free_coherent(port->dev, SIRFSOC_RX_DMA_BUF_SIZE,
sirfport->rx_dma_items.xmit.buf,
sirfport->rx_dma_items.dma_addr);
dma_release_channel(sirfport->rx_dma_chan);
err:
return ret;
}
static int sirfsoc_uart_remove(struct platform_device *pdev)
{
struct sirfsoc_uart_port *sirfport = platform_get_drvdata(pdev);
struct uart_port *port = &sirfport->port;
uart_remove_one_port(&sirfsoc_uart_drv, port);
if (sirfport->rx_dma_chan) {
dmaengine_terminate_all(sirfport->rx_dma_chan);
dma_release_channel(sirfport->rx_dma_chan);
dma_free_coherent(port->dev, SIRFSOC_RX_DMA_BUF_SIZE,
sirfport->rx_dma_items.xmit.buf,
sirfport->rx_dma_items.dma_addr);
}
if (sirfport->tx_dma_chan) {
dmaengine_terminate_all(sirfport->tx_dma_chan);
dma_release_channel(sirfport->tx_dma_chan);
}
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int
sirfsoc_uart_suspend(struct device *pdev)
{
struct sirfsoc_uart_port *sirfport = dev_get_drvdata(pdev);
struct uart_port *port = &sirfport->port;
uart_suspend_port(&sirfsoc_uart_drv, port);
return 0;
}
static int sirfsoc_uart_resume(struct device *pdev)
{
struct sirfsoc_uart_port *sirfport = dev_get_drvdata(pdev);
struct uart_port *port = &sirfport->port;
uart_resume_port(&sirfsoc_uart_drv, port);
return 0;
}
#endif
static const struct dev_pm_ops sirfsoc_uart_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(sirfsoc_uart_suspend, sirfsoc_uart_resume)
};
static struct platform_driver sirfsoc_uart_driver = {
.probe = sirfsoc_uart_probe,
.remove = sirfsoc_uart_remove,
.driver = {
.name = SIRFUART_PORT_NAME,
.of_match_table = sirfsoc_uart_ids,
.pm = &sirfsoc_uart_pm_ops,
},
};
static int __init sirfsoc_uart_init(void)
{
int ret = 0;
ret = uart_register_driver(&sirfsoc_uart_drv);
if (ret)
goto out;
ret = platform_driver_register(&sirfsoc_uart_driver);
if (ret)
uart_unregister_driver(&sirfsoc_uart_drv);
out:
return ret;
}
module_init(sirfsoc_uart_init);
static void __exit sirfsoc_uart_exit(void)
{
platform_driver_unregister(&sirfsoc_uart_driver);
uart_unregister_driver(&sirfsoc_uart_drv);
}
/*
* Translate OpenFirmware node properties into platform_data
*/
static struct gpio_keys_platform_data *
gpio_keys_get_devtree_pdata(struct device *dev)
{
struct device_node *node, *pp;
struct gpio_keys_platform_data *pdata;
struct gpio_keys_button *button;
int error;
int nbuttons;
int i;
node = dev->of_node;
if (!node) {
error = -ENODEV;
goto err_out;
}
nbuttons = of_get_child_count(node);
if (nbuttons == 0) {
error = -ENODEV;
goto err_out;
}
pdata = kzalloc(sizeof(*pdata) + nbuttons * (sizeof *button),
GFP_KERNEL);
if (!pdata) {
error = -ENOMEM;
goto err_out;
}
pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
pdata->nbuttons = nbuttons;
pdata->rep = !!of_get_property(node, "autorepeat", NULL);
pdata->name = of_get_property(node, "input-name", NULL);
i = 0;
for_each_child_of_node(node, pp) {
int gpio;
enum of_gpio_flags flags;
if (!of_find_property(pp, "gpios", NULL)) {
pdata->nbuttons--;
dev_warn(dev, "Found button without gpios\n");
continue;
}
gpio = of_get_gpio_flags(pp, 0, &flags);
if (gpio < 0) {
error = gpio;
if (error != -EPROBE_DEFER)
dev_err(dev,
"Failed to get gpio flags, error: %d\n",
error);
goto err_free_pdata;
}
button = &pdata->buttons[i++];
button->gpio = gpio;
button->active_low = flags & OF_GPIO_ACTIVE_LOW;
if (of_property_read_u32(pp, "linux,code", &button->code)) {
dev_err(dev, "Button without keycode: 0x%x\n",
button->gpio);
error = -EINVAL;
goto err_free_pdata;
}
button->desc = of_get_property(pp, "label", NULL);
if (of_property_read_u32(pp, "linux,input-type", &button->type))
button->type = EV_KEY;
button->wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
if (of_property_read_u32(pp, "debounce-interval",
&button->debounce_interval))
button->debounce_interval = 5;
}
static int __devinit fsl_ssi_probe(struct platform_device *pdev)
{
struct fsl_ssi_private *ssi_private;
int ret = 0;
struct device_attribute *dev_attr = NULL;
struct device_node *np = pdev->dev.of_node;
const char *p, *sprop;
const uint32_t *iprop;
struct resource res;
char name[64];
/* SSIs that are not connected on the board should have a
* status = "disabled"
* property in their device tree nodes.
*/
if (!of_device_is_available(np))
return -ENODEV;
/* Check for a codec-handle property. */
if (!of_get_property(np, "codec-handle", NULL)) {
dev_err(&pdev->dev, "missing codec-handle property\n");
return -ENODEV;
}
/* We only support the SSI in "I2S Slave" mode */
sprop = of_get_property(np, "fsl,mode", NULL);
if (!sprop || strcmp(sprop, "i2s-slave")) {
dev_notice(&pdev->dev, "mode %s is unsupported\n", sprop);
return -ENODEV;
}
/* The DAI name is the last part of the full name of the node. */
p = strrchr(np->full_name, '/') + 1;
ssi_private = kzalloc(sizeof(struct fsl_ssi_private) + strlen(p),
GFP_KERNEL);
if (!ssi_private) {
dev_err(&pdev->dev, "could not allocate DAI object\n");
return -ENOMEM;
}
strcpy(ssi_private->name, p);
/* Initialize this copy of the CPU DAI driver structure */
memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_dai_template,
sizeof(fsl_ssi_dai_template));
ssi_private->cpu_dai_drv.name = ssi_private->name;
/* Get the addresses and IRQ */
ret = of_address_to_resource(np, 0, &res);
if (ret) {
dev_err(&pdev->dev, "could not determine device resources\n");
goto error_kmalloc;
}
ssi_private->ssi = of_iomap(np, 0);
if (!ssi_private->ssi) {
dev_err(&pdev->dev, "could not map device resources\n");
ret = -ENOMEM;
goto error_kmalloc;
}
ssi_private->ssi_phys = res.start;
ssi_private->irq = irq_of_parse_and_map(np, 0);
if (ssi_private->irq == NO_IRQ) {
dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
ret = -ENXIO;
goto error_iomap;
}
/* The 'name' should not have any slashes in it. */
ret = request_irq(ssi_private->irq, fsl_ssi_isr, 0, ssi_private->name,
ssi_private);
if (ret < 0) {
dev_err(&pdev->dev, "could not claim irq %u\n", ssi_private->irq);
goto error_irqmap;
}
/* Are the RX and the TX clocks locked? */
if (!of_find_property(np, "fsl,ssi-asynchronous", NULL))
ssi_private->cpu_dai_drv.symmetric_rates = 1;
/* Determine the FIFO depth. */
iprop = of_get_property(np, "fsl,fifo-depth", NULL);
if (iprop)
ssi_private->fifo_depth = be32_to_cpup(iprop);
else
/* Older 8610 DTs didn't have the fifo-depth property */
ssi_private->fifo_depth = 8;
/* Initialize the the device_attribute structure */
dev_attr = &ssi_private->dev_attr;
sysfs_attr_init(&dev_attr->attr);
dev_attr->attr.name = "statistics";
dev_attr->attr.mode = S_IRUGO;
dev_attr->show = fsl_sysfs_ssi_show;
ret = device_create_file(&pdev->dev, dev_attr);
if (ret) {
dev_err(&pdev->dev, "could not create sysfs %s file\n",
ssi_private->dev_attr.attr.name);
goto error_irq;
}
/* Register with ASoC */
dev_set_drvdata(&pdev->dev, ssi_private);
ret = snd_soc_register_dai(&pdev->dev, &ssi_private->cpu_dai_drv);
if (ret) {
dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
goto error_dev;
}
/* Trigger the machine driver's probe function. The platform driver
* name of the machine driver is taken from /compatible property of the
* device tree. We also pass the address of the CPU DAI driver
* structure.
*/
sprop = of_get_property(of_find_node_by_path("/"), "compatible", NULL);
/* Sometimes the compatible name has a "fsl," prefix, so we strip it. */
p = strrchr(sprop, ',');
if (p)
sprop = p + 1;
snprintf(name, sizeof(name), "snd-soc-%s", sprop);
make_lowercase(name);
ssi_private->pdev =
platform_device_register_data(&pdev->dev, name, 0, NULL, 0);
if (IS_ERR(ssi_private->pdev)) {
ret = PTR_ERR(ssi_private->pdev);
dev_err(&pdev->dev, "failed to register platform: %d\n", ret);
goto error_dai;
}
return 0;
error_dai:
snd_soc_unregister_dai(&pdev->dev);
error_dev:
dev_set_drvdata(&pdev->dev, NULL);
device_remove_file(&pdev->dev, dev_attr);
error_irq:
free_irq(ssi_private->irq, ssi_private);
error_irqmap:
irq_dispose_mapping(ssi_private->irq);
error_iomap:
iounmap(ssi_private->ssi);
error_kmalloc:
kfree(ssi_private);
return ret;
}
/*
* Get info on the currently-loaded firmware
*
* This function also checks the device tree to see if the boot loader has
* uploaded a firmware already.
*/
struct qe_firmware_info *qe_get_firmware_info(void)
{
static int initialized;
struct property *prop;
struct device_node *qe;
struct device_node *fw = NULL;
const char *sprop;
unsigned int i;
/*
* If we haven't checked yet, and a driver hasn't uploaded a firmware
* yet, then check the device tree for information.
*/
if (qe_firmware_uploaded)
return &qe_firmware_info;
if (initialized)
return NULL;
initialized = 1;
/*
* Newer device trees have an "fsl,qe" compatible property for the QE
* node, but we still need to support older device trees.
*/
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (!qe) {
qe = of_find_node_by_type(NULL, "qe");
if (!qe)
return NULL;
}
/* Find the 'firmware' child node */
for_each_child_of_node(qe, fw) {
if (strcmp(fw->name, "firmware") == 0)
break;
}
of_node_put(qe);
/* Did we find the 'firmware' node? */
if (!fw)
return NULL;
qe_firmware_uploaded = 1;
/* Copy the data into qe_firmware_info*/
sprop = of_get_property(fw, "id", NULL);
if (sprop)
strncpy(qe_firmware_info.id, sprop,
sizeof(qe_firmware_info.id) - 1);
prop = of_find_property(fw, "extended-modes", NULL);
if (prop && (prop->length == sizeof(u64))) {
const u64 *iprop = prop->value;
qe_firmware_info.extended_modes = *iprop;
}
prop = of_find_property(fw, "virtual-traps", NULL);
if (prop && (prop->length == 32)) {
const u32 *iprop = prop->value;
for (i = 0; i < ARRAY_SIZE(qe_firmware_info.vtraps); i++)
qe_firmware_info.vtraps[i] = iprop[i];
}
of_node_put(fw);
return &qe_firmware_info;
}
static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
struct device_node *np)
{
struct mtd_part_parser_data ppdata;
enum read_mode flash_read;
u32 ctrl, property;
u16 mode = 0;
int ret;
if (!of_property_read_u32(np, "spi-rx-bus-width", &property)) {
switch (property) {
case 1:
break;
case 2:
mode |= SPI_RX_DUAL;
break;
case 4:
mode |= SPI_RX_QUAD;
break;
default:
dev_err(spifi->dev, "unsupported rx-bus-width\n");
return -EINVAL;
}
}
if (of_find_property(np, "spi-cpha", NULL))
mode |= SPI_CPHA;
if (of_find_property(np, "spi-cpol", NULL))
mode |= SPI_CPOL;
/* Setup control register defaults */
ctrl = SPIFI_CTRL_TIMEOUT(1000) |
SPIFI_CTRL_CSHIGH(15) |
SPIFI_CTRL_FBCLK;
if (mode & SPI_RX_DUAL) {
ctrl |= SPIFI_CTRL_DUAL;
flash_read = SPI_NOR_DUAL;
} else if (mode & SPI_RX_QUAD) {
ctrl &= ~SPIFI_CTRL_DUAL;
flash_read = SPI_NOR_QUAD;
} else {
ctrl |= SPIFI_CTRL_DUAL;
flash_read = SPI_NOR_NORMAL;
}
switch (mode & (SPI_CPHA | SPI_CPOL)) {
case SPI_MODE_0:
ctrl &= ~SPIFI_CTRL_MODE3;
break;
case SPI_MODE_3:
ctrl |= SPIFI_CTRL_MODE3;
break;
default:
dev_err(spifi->dev, "only mode 0 and 3 supported\n");
return -EINVAL;
}
writel(ctrl, spifi->io_base + SPIFI_CTRL);
spifi->mtd.priv = &spifi->nor;
spifi->nor.mtd = &spifi->mtd;
spifi->nor.dev = spifi->dev;
spifi->nor.priv = spifi;
spifi->nor.read = nxp_spifi_read;
spifi->nor.write = nxp_spifi_write;
spifi->nor.erase = nxp_spifi_erase;
spifi->nor.read_reg = nxp_spifi_read_reg;
spifi->nor.write_reg = nxp_spifi_write_reg;
/*
* The first read on a hard reset isn't reliable so do a
* dummy read of the id before calling spi_nor_scan().
* The reason for this problem is unknown.
*
* The official NXP spifilib uses more or less the same
* workaround that is applied here by reading the device
* id multiple times.
*/
nxp_spifi_dummy_id_read(&spifi->nor);
ret = spi_nor_scan(&spifi->nor, NULL, flash_read);
if (ret) {
dev_err(spifi->dev, "device scan failed\n");
return ret;
}
ret = nxp_spifi_setup_memory_cmd(spifi);
if (ret) {
dev_err(spifi->dev, "memory command setup failed\n");
return ret;
}
ppdata.of_node = np;
ret = mtd_device_parse_register(&spifi->mtd, NULL, &ppdata, NULL, 0);
if (ret) {
dev_err(spifi->dev, "mtd device parse failed\n");
return ret;
}
return 0;
}
static int spear_cpufreq_driver_init(void)
{
struct device_node *np;
const struct property *prop;
struct cpufreq_frequency_table *freq_tbl;
const __be32 *val;
int cnt, i, ret;
np = of_cpu_device_node_get(0);
if (!np) {
pr_err("No cpu node found");
return -ENODEV;
}
if (of_property_read_u32(np, "clock-latency",
&spear_cpufreq.transition_latency))
spear_cpufreq.transition_latency = CPUFREQ_ETERNAL;
prop = of_find_property(np, "cpufreq_tbl", NULL);
if (!prop || !prop->value) {
pr_err("Invalid cpufreq_tbl");
ret = -ENODEV;
goto out_put_node;
}
cnt = prop->length / sizeof(u32);
val = prop->value;
freq_tbl = kmalloc(sizeof(*freq_tbl) * (cnt + 1), GFP_KERNEL);
if (!freq_tbl) {
ret = -ENOMEM;
goto out_put_node;
}
for (i = 0; i < cnt; i++) {
freq_tbl[i].driver_data = i;
freq_tbl[i].frequency = be32_to_cpup(val++);
}
freq_tbl[i].driver_data = i;
freq_tbl[i].frequency = CPUFREQ_TABLE_END;
spear_cpufreq.freq_tbl = freq_tbl;
of_node_put(np);
spear_cpufreq.clk = clk_get(NULL, "cpu_clk");
if (IS_ERR(spear_cpufreq.clk)) {
pr_err("Unable to get CPU clock\n");
ret = PTR_ERR(spear_cpufreq.clk);
goto out_put_mem;
}
ret = cpufreq_register_driver(&spear_cpufreq_driver);
if (!ret)
return 0;
pr_err("failed register driver: %d\n", ret);
clk_put(spear_cpufreq.clk);
out_put_mem:
kfree(freq_tbl);
return ret;
out_put_node:
of_node_put(np);
return ret;
}
/**
* of_get_fixed_voltage_config - extract fixed_voltage_config structure info
* @dev: device requesting for fixed_voltage_config
*
* Populates fixed_voltage_config structure by extracting data from device
* tree node, returns a pointer to the populated structure of NULL if memory
* alloc fails.
*/
static struct fixed_voltage_config *
of_get_fixed_voltage_config(struct device *dev)
{
struct fixed_voltage_config *config;
struct device_node *np = dev->of_node;
const __be32 *delay;
struct regulator_init_data *init_data;
config = devm_kzalloc(dev, sizeof(struct fixed_voltage_config),
GFP_KERNEL);
if (!config)
return ERR_PTR(-ENOMEM);
config->init_data = of_get_regulator_init_data(dev, dev->of_node);
if (!config->init_data)
return ERR_PTR(-EINVAL);
init_data = config->init_data;
init_data->constraints.apply_uV = 0;
config->supply_name = init_data->constraints.name;
if (init_data->constraints.min_uV == init_data->constraints.max_uV) {
config->microvolts = init_data->constraints.min_uV;
} else {
dev_err(dev,
"Fixed regulator specified with variable voltages\n");
return ERR_PTR(-EINVAL);
}
if (init_data->constraints.boot_on)
config->enabled_at_boot = true;
config->gpio = of_get_named_gpio(np, "gpio", 0);
/*
* of_get_named_gpio() currently returns ENODEV rather than
* EPROBE_DEFER. This code attempts to be compatible with both
* for now; the ENODEV check can be removed once the API is fixed.
* of_get_named_gpio() doesn't differentiate between a missing
* property (which would be fine here, since the GPIO is optional)
* and some other error. Patches have been posted for both issues.
* Once they are check in, we should replace this with:
* if (config->gpio < 0 && config->gpio != -ENOENT)
*/
if ((config->gpio == -ENODEV) || (config->gpio == -EPROBE_DEFER))
return ERR_PTR(-EPROBE_DEFER);
delay = of_get_property(np, "startup-delay-us", NULL);
if (delay)
config->startup_delay = be32_to_cpu(*delay);
if (of_find_property(np, "enable-active-high", NULL))
config->enable_high = true;
if (of_find_property(np, "gpio-open-drain", NULL))
config->gpio_is_open_drain = true;
if (of_find_property(np, "vin-supply", NULL))
config->input_supply = "vin";
return config;
}
static int read_gpio_from_dt(struct device_node *dt, struct fullseg_platform_data *pdata)
{
struct property *prop = NULL;
INFO_PRINT("%s \n", __func__);
prop = of_find_property(dt, "fullseg,npdreg", NULL);
if (prop) {
pdata->npdreg = of_get_named_gpio(dt, "fullseg,npdreg", 0);
printk("%s: pdata->npdreg = %d\n", __func__, pdata->npdreg);
}
prop = of_find_property(dt, "fullseg,npdxtal", NULL);
if (prop) {
pdata->npdxtal = of_get_named_gpio(dt, "fullseg,npdxtal", 0);
printk("%s: pdata->npdxtal = %d\n", __func__, pdata->npdxtal);
}
prop = of_find_property(dt, "fullseg,nrst", NULL);
if (prop) {
pdata->nrst = of_get_named_gpio(dt, "fullseg,nrst", 0);
printk("%s: pdata->nrst = %d\n", __func__, pdata->nrst);
}
prop = of_find_property(dt, "fullseg,interrupt", NULL);
if (prop) {
pdata->interrupt = of_get_named_gpio(dt, "fullseg,interrupt", 0);
printk("%s: pdata->interrupt = %d\n", __func__, pdata->interrupt);
}
prop = of_find_property(dt, "fullseg,fm_fullseg_ant_sw", NULL);
if (prop) {
pdata->fm_fullseg_ant_sw = of_get_named_gpio(dt, "fullseg,fm_fullseg_ant_sw", 0);
printk("%s: pdata->fm_fullseg_ant_sw = %d\n", __func__, pdata->fm_fullseg_ant_sw);
}
prop = of_find_property(dt, "fullseg,1v8_en", NULL);
if (prop) {
pdata->_1v8_en = of_get_named_gpio(dt, "fullseg,1v8_en", 0);
printk("%s: pdata->_1v8_en = %d\n", __func__, pdata->_1v8_en);
}
prop = of_find_property(dt, "fullseg,1v1_en", NULL);
if (prop) {
pdata->_1v1_en = of_get_named_gpio(dt, "fullseg,1v1_en", 0);
printk("%s: pdata->_1v1_en = %d\n", __func__, pdata->_1v1_en);
}
prop = of_find_property(dt, "fullseg,ts_clk", NULL);
if (prop) {
pdata->ts_clk= of_get_named_gpio(dt, "fullseg,ts_clk", 0);
printk("%s: pdata->ts_clk = %d\n", __func__, pdata->ts_clk);
}
prop = of_find_property(dt, "fullseg,ts_en", NULL);
if (prop) {
pdata->ts_en= of_get_named_gpio(dt, "fullseg,ts_en", 0);
printk("%s: pdata->ts_en = %d\n", __func__, pdata->ts_en);
}
prop = of_find_property(dt, "fullseg,ts_data", NULL);
if (prop) {
pdata->ts_data= of_get_named_gpio(dt, "fullseg,ts_data", 0);
printk("%s: pdata->ts_data = %d\n", __func__, pdata->ts_data);
}
prop = of_find_property(dt, "fullseg,ts_sync", NULL);
if (prop) {
pdata->ts_sync= of_get_named_gpio(dt, "fullseg,ts_sync", 0);
printk("%s: pdata->ts_sync = %d\n", __func__, pdata->ts_sync);
}
return 0;
}
static int lg4591_probe(struct platform_device *pdev)
{
struct mmp_mach_panel_info *mi;
struct lg4591_plat_data *plat_data;
struct device_node *np = pdev->dev.of_node;
const char *path_name;
struct backlight_properties props;
struct backlight_device *bl;
int ret;
u32 esd_enable;
plat_data = kzalloc(sizeof(*plat_data), GFP_KERNEL);
if (!plat_data)
return -ENOMEM;
if (IS_ENABLED(CONFIG_OF)) {
ret = of_property_read_string(np, "marvell,path-name",
&path_name);
if (ret < 0) {
kfree(plat_data);
return ret;
}
panel_lg4591.plat_path_name = path_name;
if (of_find_property(np, "iovdd-supply", NULL))
panel_lg4591.is_iovdd = 1;
if (of_find_property(np, "avdd-supply", NULL))
panel_lg4591.is_avdd = 1;
if (of_property_read_u32(np, "panel_esd", &esd_enable))
plat_data->esd_enable = 0;
plat_data->esd_enable = esd_enable;
} else {
/* get configs from platform data */
mi = pdev->dev.platform_data;
if (mi == NULL) {
dev_err(&pdev->dev, "no platform data defined\n");
kfree(plat_data);
return -EINVAL;
}
plat_data->plat_onoff = mi->plat_set_onoff;
panel_lg4591.plat_path_name = mi->plat_path_name;
plat_data->plat_set_backlight = mi->plat_set_backlight;
plat_data->esd_enable = mi->esd_enable;
}
plat_data->panel = &panel_lg4591;
panel_lg4591.plat_data = plat_data;
panel_lg4591.dev = &pdev->dev;
mmp_register_panel(&panel_lg4591);
if (plat_data->esd_enable)
esd_init(&panel_lg4591);
/*
* if no panel or plat associate backlight control,
* don't register backlight device here.
*/
if (!panel_lg4591.set_brightness && !plat_data->plat_set_backlight)
return 0;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = 100;
props.type = BACKLIGHT_RAW;
bl = backlight_device_register("lcd-bl", &pdev->dev, plat_data,
&lg4591_bl_ops, &props);
if (IS_ERR(bl)) {
ret = PTR_ERR(bl);
dev_err(&pdev->dev, "failed to register lcd-backlight\n");
return ret;
}
bl->props.fb_blank = FB_BLANK_UNBLANK;
bl->props.power = FB_BLANK_UNBLANK;
bl->props.brightness = 100;
ret = lg4591_bl_update_status(bl);
if (ret < 0)
dev_err(&pdev->dev, "failed to set lcd brightness\n");
return 0;
}
void sdhci_get_of_property(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
const __be32 *clk;
u32 bus_width = 0;
int size;
int runmode_normal;
int batterystate_exist;
if (of_device_is_available(np)) {
if (of_get_property(np, "sdhci,auto-cmd12", NULL))
host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
if (of_get_property(np, "sdhci,1-bit-only", NULL) ||
(of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
bus_width == 1))
host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
if (bus_width == 4)
host->mmc->caps |= MMC_CAP_4_BIT_DATA;
else if (bus_width == 8)
host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA;
if (sdhci_of_wp_inverted(np))
host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
if (of_get_property(np, "broken-cd", NULL))
host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
if (of_find_property(np, "non-removable", NULL))
host->mmc->caps |= MMC_CAP_NONREMOVABLE;
if (of_get_property(np, "no-1-8-v", NULL))
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
if (of_find_property(np, "use-pio", NULL))
{
host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
}
if (of_find_property(np, "use-dma", NULL))
host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
if (!of_find_property(np, "sdhci-adma-64bit", NULL))
host->quirks2 |= SDHCI_QUIRK2_BROKEN_64_BIT_DMA;
if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||
of_device_is_compatible(np, "fsl,p1010-esdhc") ||
of_device_is_compatible(np, "fsl,t4240-esdhc") ||
of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
clk = of_get_property(np, "clock-frequency", &size);
if (clk && size == sizeof(*clk) && *clk)
pltfm_host->clock = be32_to_cpup(clk);
host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
if (of_find_property(np, "caps2-mmc-ddr50-1_8v", NULL))
host->mmc->caps |= MMC_CAP_1_8V_DDR;
if (of_find_property(np, "caps2-mmc-ddr50-1_2v", NULL))
host->mmc->caps |= MMC_CAP_1_2V_DDR;
if (of_find_property(np, "caps2-mmc-hs200-1_8v", NULL)) {
host->mmc->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
host->quirks2 &= ~SDHCI_QUIRK2_BROKEN_HS200;
}
if (of_find_property(np, "caps2-mmc-hs200-1_2v", NULL)) {
host->mmc->caps2 |= MMC_CAP2_HS200_1_2V_SDR;
host->quirks2 &= ~SDHCI_QUIRK2_BROKEN_HS200;
}
if (of_find_property(np, "caps2-mmc-hs400-1_8v", NULL)){
host->mmc->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
host->mmc->caps2 |= MMC_CAP2_HS400_1_8V;
host->quirks2 &= ~SDHCI_QUIRK2_BROKEN_HS200;
}
if (of_find_property(np, "caps2-mmc-hs400-1_2v", NULL)){
host->mmc->caps2 |= MMC_CAP2_HS200_1_2V_SDR;
host->mmc->caps2 |= MMC_CAP2_HS400_1_2V;
host->quirks2 &= ~SDHCI_QUIRK2_BROKEN_HS200;
}
if (of_find_property(np, "caps2-mmc-packed-command", NULL))
host->mmc->caps2 |= MMC_CAP2_PACKED_CMD;
runmode_normal = !runmode_is_factory();
#ifdef CONFIG_HISI_COUL
batterystate_exist = is_hisi_battery_exist();
#else
batterystate_exist = 0;
#endif
dev_info(&pdev->dev, "runmode_normal = %d batterystate_exist = %d\n", runmode_normal, batterystate_exist);
if (of_find_property(np, "caps2-mmc-cache-ctrl", NULL))
{
dev_info(&pdev->dev, "caps2-mmc-cache-ctrl is set in dts.\n");
if(runmode_normal || batterystate_exist)
{
dev_info(&pdev->dev, "cache ctrl on\n");
host->mmc->caps2 |= MMC_CAP2_CACHE_CTRL;
}
else
{
dev_info(&pdev->dev, "cache ctrl off\n");
}
}
if (of_find_property(np, "full-pwr-cycle", NULL))
host->mmc->caps2 |= MMC_CAP2_FULL_PWR_CYCLE;
if (of_find_property(np, "caps2-mmc-cmd-queue", NULL))
{
dev_info(&pdev->dev, "caps2-mmc-cmd-queue is set in dts.\n");
if(runmode_normal || batterystate_exist)
{
dev_info(&pdev->dev, "caps2-mmc-cmd-queue on\n");
host->mmc->caps2 |= MMC_CAP2_CMD_QUEUE;
}
else
{
dev_info(&pdev->dev, "caps2-mmc-cmd-queue off\n");
}
}
if (of_find_property(np, "keep-power-in-suspend", NULL))
host->mmc->pm_caps |= MMC_PM_KEEP_POWER;
if (of_find_property(np, "enable-sdio-wakeup", NULL))
host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
if (of_find_property(np, "caps2-mmc-enhanced_strobe-ctrl", NULL))
host->mmc->caps2 |= MMC_CAP2_ENHANCED_STROBE;
if (of_find_property(np, "caps2-mmc-cache_flush_barrier-ctrl", NULL))
host->mmc->caps2 |= MMC_CAP2_CACHE_FLUSH_BARRIER;
if (of_find_property(np, "caps2-mmc-bkops_auto-ctrl", NULL))
host->mmc->caps2 |= MMC_CAP2_BKOPS_AUTO_CTRL;
if (of_find_property(np, "caps2-mmc-HC-erase-size", NULL))
host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
}
}
static int of_platform_serial_probe(struct platform_device *ofdev)
{
const struct of_device_id *match;
struct of_serial_info *info;
struct uart_port port;
int port_type;
int ret;
int ids;
match = of_match_device(of_platform_serial_table, &ofdev->dev);
if (!match)
return -EINVAL;
if (of_find_property(ofdev->dev.of_node, "used-by-rtas", NULL))
return -EBUSY;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL)
return -ENOMEM;
port_type = (unsigned long)match->data;
ret = of_platform_serial_setup(ofdev, port_type, &port, info);
if (ret)
goto out;
ids = of_alias_get_id(ofdev->dev.of_node, "serial");
if (ids < 0) {
dev_warn(&ofdev->dev, "FAILED to find out alias id\n");
} else {
if (ids < CONFIG_SERIAL_8250_RUNTIME_UARTS)
port.line = ids;
else {
dev_warn(&ofdev->dev,
"FAILED to register serial driver with id %d\n",
ids);
goto out;
}
}
switch (port_type) {
#ifdef CONFIG_SERIAL_8250
case PORT_8250 ... PORT_MAX_8250:
{
struct uart_8250_port port8250;
memset(&port8250, 0, sizeof(port8250));
port8250.port = port;
if (port.fifosize)
port8250.capabilities = UART_CAP_FIFO;
if (of_property_read_bool(ofdev->dev.of_node,
"auto-flow-control"))
port8250.capabilities |= UART_CAP_AFE;
ret = serial8250_register_8250_port(&port8250);
break;
}
#endif
#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
case PORT_NWPSERIAL:
ret = nwpserial_register_port(&port);
break;
#endif
default:
/* need to add code for these */
case PORT_UNKNOWN:
dev_info(&ofdev->dev, "Unknown serial port found, ignored\n");
ret = -ENODEV;
break;
}
if (ret < 0)
goto out;
info->type = port_type;
info->line = ret;
platform_set_drvdata(ofdev, info);
return 0;
out:
kfree(info);
irq_dispose_mapping(port.irq);
return ret;
}
static int ti_dra7_xbar_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
const struct of_device_id *match;
struct device_node *dma_node;
struct ti_dra7_xbar_data *xbar;
struct property *prop;
struct resource *res;
u32 safe_val;
int sz;
void __iomem *iomem;
int i, ret;
if (!node)
return -ENODEV;
xbar = devm_kzalloc(&pdev->dev, sizeof(*xbar), GFP_KERNEL);
if (!xbar)
return -ENOMEM;
dma_node = of_parse_phandle(node, "dma-masters", 0);
if (!dma_node) {
dev_err(&pdev->dev, "Can't get DMA master node\n");
return -ENODEV;
}
match = of_match_node(ti_dra7_master_match, dma_node);
if (!match) {
dev_err(&pdev->dev, "DMA master is not supported\n");
of_node_put(dma_node);
return -EINVAL;
}
if (of_property_read_u32(dma_node, "dma-requests",
&xbar->dma_requests)) {
dev_info(&pdev->dev,
"Missing XBAR output information, using %u.\n",
TI_DRA7_XBAR_OUTPUTS);
xbar->dma_requests = TI_DRA7_XBAR_OUTPUTS;
}
of_node_put(dma_node);
xbar->dma_inuse = devm_kcalloc(&pdev->dev,
BITS_TO_LONGS(xbar->dma_requests),
sizeof(unsigned long), GFP_KERNEL);
if (!xbar->dma_inuse)
return -ENOMEM;
if (of_property_read_u32(node, "dma-requests", &xbar->xbar_requests)) {
dev_info(&pdev->dev,
"Missing XBAR input information, using %u.\n",
TI_DRA7_XBAR_INPUTS);
xbar->xbar_requests = TI_DRA7_XBAR_INPUTS;
}
if (!of_property_read_u32(node, "ti,dma-safe-map", &safe_val))
xbar->safe_val = (u16)safe_val;
prop = of_find_property(node, "ti,reserved-dma-request-ranges", &sz);
if (prop) {
const char pname[] = "ti,reserved-dma-request-ranges";
u32 (*rsv_events)[2];
size_t nelm = sz / sizeof(*rsv_events);
int i;
if (!nelm)
return -EINVAL;
rsv_events = kcalloc(nelm, sizeof(*rsv_events), GFP_KERNEL);
if (!rsv_events)
return -ENOMEM;
ret = of_property_read_u32_array(node, pname, (u32 *)rsv_events,
nelm * 2);
if (ret)
return ret;
for (i = 0; i < nelm; i++) {
ti_dra7_xbar_reserve(rsv_events[i][0], rsv_events[i][1],
xbar->dma_inuse);
}
kfree(rsv_events);
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
iomem = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(iomem))
return PTR_ERR(iomem);
xbar->iomem = iomem;
xbar->dmarouter.dev = &pdev->dev;
xbar->dmarouter.route_free = ti_dra7_xbar_free;
xbar->dma_offset = *(u32 *)match->data;
mutex_init(&xbar->mutex);
platform_set_drvdata(pdev, xbar);
/* Reset the crossbar */
for (i = 0; i < xbar->dma_requests; i++) {
if (!test_bit(i, xbar->dma_inuse))
ti_dra7_xbar_write(xbar->iomem, i, xbar->safe_val);
}
ret = of_dma_router_register(node, ti_dra7_xbar_route_allocate,
&xbar->dmarouter);
if (ret) {
/* Restore the defaults for the crossbar */
for (i = 0; i < xbar->dma_requests; i++) {
if (!test_bit(i, xbar->dma_inuse))
ti_dra7_xbar_write(xbar->iomem, i, i);
}
}
return ret;
}
/*
* Fill a struct uart_port for a given device node
*/
static int of_platform_serial_setup(struct platform_device *ofdev,
int type, struct uart_port *port,
struct of_serial_info *info)
{
struct resource resource;
struct device_node *np = ofdev->dev.of_node;
u32 clk, spd, prop;
int ret;
memset(port, 0, sizeof *port);
if (of_property_read_u32(np, "clock-frequency", &clk)) {
/* Get clk rate through clk driver if present */
info->clk = devm_clk_get(&ofdev->dev, NULL);
if (IS_ERR(info->clk)) {
dev_warn(&ofdev->dev,
"clk or clock-frequency not defined\n");
return PTR_ERR(info->clk);
}
ret = clk_prepare_enable(info->clk);
if (ret < 0)
return ret;
clk = clk_get_rate(info->clk);
}
/* If current-speed was set, then try not to change it. */
if (of_property_read_u32(np, "current-speed", &spd) == 0)
port->custom_divisor = clk / (16 * spd);
ret = of_address_to_resource(np, 0, &resource);
if (ret) {
dev_warn(&ofdev->dev, "invalid address\n");
goto out;
}
spin_lock_init(&port->lock);
port->mapbase = resource.start;
port->mapsize = resource_size(&resource);
/* Check for shifted address mapping */
if (of_property_read_u32(np, "reg-offset", &prop) == 0) {
port->mapbase += prop;
port->mapsize -= prop;
}
/* Check for registers offset within the devices address range */
if (of_property_read_u32(np, "reg-shift", &prop) == 0)
port->regshift = prop;
/* Check for fifo size */
if (of_property_read_u32(np, "fifo-size", &prop) == 0)
port->fifosize = prop;
/* Check for a fixed line number */
ret = of_alias_get_id(np, "serial");
if (ret >= 0)
port->line = ret;
port->irq = irq_of_parse_and_map(np, 0);
port->iotype = UPIO_MEM;
if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {
switch (prop) {
case 1:
port->iotype = UPIO_MEM;
break;
case 4:
port->iotype = of_device_is_big_endian(np) ?
UPIO_MEM32BE : UPIO_MEM32;
break;
default:
dev_warn(&ofdev->dev, "unsupported reg-io-width (%d)\n",
prop);
ret = -EINVAL;
goto out;
}
}
port->type = type;
port->uartclk = clk;
port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP
| UPF_FIXED_PORT | UPF_FIXED_TYPE;
if (of_find_property(np, "no-loopback-test", NULL))
port->flags |= UPF_SKIP_TEST;
port->dev = &ofdev->dev;
switch (type) {
case PORT_TEGRA:
port->handle_break = tegra_serial_handle_break;
break;
case PORT_RT2880:
port->iotype = UPIO_AU;
break;
}
if (IS_ENABLED(CONFIG_SERIAL_8250_FSL) &&
(of_device_is_compatible(np, "fsl,ns16550") ||
of_device_is_compatible(np, "fsl,16550-FIFO64")))
port->handle_irq = fsl8250_handle_irq;
return 0;
out:
if (info->clk)
clk_disable_unprepare(info->clk);
return ret;
}
static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
{
struct device_node *np = chip->of_node;
struct of_phandle_args pinspec;
struct pinctrl_dev *pctldev;
int index = 0, ret;
const char *name;
static const char group_names_propname[] = "gpio-ranges-group-names";
struct property *group_names;
if (!np)
return;
group_names = of_find_property(np, group_names_propname, NULL);
for (;; index++) {
ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3,
index, &pinspec);
if (ret)
break;
pctldev = of_pinctrl_get(pinspec.np);
if (!pctldev)
break;
if (pinspec.args[2]) {
if (group_names) {
ret = of_property_read_string_index(np,
group_names_propname,
index, &name);
if (strlen(name)) {
pr_err("%s: Group name of numeric GPIO ranges must be the empty string.\n",
np->full_name);
break;
}
}
/* npins != 0: linear range */
ret = gpiochip_add_pin_range(chip,
pinctrl_dev_get_devname(pctldev),
pinspec.args[0],
pinspec.args[1],
pinspec.args[2]);
if (ret)
break;
} else {
/* npins == 0: special range */
if (pinspec.args[1]) {
pr_err("%s: Illegal gpio-range format.\n",
np->full_name);
break;
}
if (!group_names) {
pr_err("%s: GPIO group range requested but no %s property.\n",
np->full_name, group_names_propname);
break;
}
ret = of_property_read_string_index(np,
group_names_propname,
index, &name);
if (ret)
break;
if (!strlen(name)) {
pr_err("%s: Group name of GPIO group range cannot be the empty string.\n",
np->full_name);
break;
}
ret = gpiochip_add_pingroup_range(chip, pctldev,
pinspec.args[0], name);
if (ret)
break;
}
}
}
static int32_t msm_ois_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int rc = 0;
struct msm_ois_ctrl_t *ois_ctrl_t = NULL;
struct msm_ois_vreg *vreg_cfg;
bool check_use_gpios;
CDBG_I("Enter\n");
if (client == NULL) {
pr_err("msm_ois_i2c_probe: client is null\n");
rc = -EINVAL;
goto probe_failure;
}
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
pr_err("i2c_check_functionality failed\n");
goto probe_failure;
}
if (!client->dev.of_node) {
ois_ctrl_t = (struct msm_ois_ctrl_t *)(id->driver_data);
} else {
ois_ctrl_t = kzalloc(sizeof(struct msm_ois_ctrl_t),
GFP_KERNEL);
if (!ois_ctrl_t) {
pr_err("%s:%d no memory\n", __func__, __LINE__);
return -ENOMEM;
}
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
pr_err("i2c_check_functionality failed\n");
goto probe_failure;
}
CDBG("client = 0x%p\n", client);
rc = of_property_read_u32(client->dev.of_node, "cell-index",
&ois_ctrl_t->subdev_id);
CDBG("cell-index %d, rc %d\n", ois_ctrl_t->subdev_id, rc);
ois_ctrl_t->cam_name = ois_ctrl_t->subdev_id;
if (rc < 0) {
pr_err("failed rc %d\n", rc);
kfree(ois_ctrl_t);//prevent
return rc;
}
check_use_gpios = of_property_read_bool(client->dev.of_node, "unuse-gpios");
CDBG("%s: check unuse-gpio flag(%d)\n",
__FUNCTION__, check_use_gpios);
if (!check_use_gpios) {
rc = msm_ois_get_gpio_data(ois_ctrl_t,
client->dev.of_node);
}
}
if (of_find_property(client->dev.of_node,
"qcom,cam-vreg-name", NULL)) {
vreg_cfg = &ois_ctrl_t->vreg_cfg;
rc = msm_camera_get_dt_vreg_data(client->dev.of_node,
&vreg_cfg->cam_vreg, &vreg_cfg->num_vreg);
if (rc < 0) {
kfree(ois_ctrl_t);
pr_err("failed rc %d\n", rc);
return rc;
}
}
ois_ctrl_t->ois_v4l2_subdev_ops = &msm_ois_subdev_ops;
ois_ctrl_t->ois_mutex = &msm_ois_mutex;
ois_ctrl_t->i2c_driver = &msm_ois_i2c_driver;
CDBG("client = %x\n", (unsigned int) client);
ois_ctrl_t->i2c_client.client = client;
ois_ctrl_t->i2c_client.addr_type = MSM_CAMERA_I2C_WORD_ADDR;
/* Set device type as I2C */
ois_ctrl_t->ois_device_type = MSM_CAMERA_I2C_DEVICE;
ois_ctrl_t->i2c_client.i2c_func_tbl = &msm_sensor_qup_func_tbl;
ois_ctrl_t->ois_v4l2_subdev_ops = &msm_ois_subdev_ops;
ois_ctrl_t->ois_mutex = &msm_ois_mutex;
ois_ctrl_t->cam_name = ois_ctrl_t->subdev_id;
CDBG("ois_ctrl_t->cam_name: %d", ois_ctrl_t->cam_name);
/* Assign name for sub device */
snprintf(ois_ctrl_t->msm_sd.sd.name, sizeof(ois_ctrl_t->msm_sd.sd.name),
"%s", ois_ctrl_t->i2c_driver->driver.name);
/* Initialize sub device */
v4l2_i2c_subdev_init(&ois_ctrl_t->msm_sd.sd,
ois_ctrl_t->i2c_client.client,
ois_ctrl_t->ois_v4l2_subdev_ops);
v4l2_set_subdevdata(&ois_ctrl_t->msm_sd.sd, ois_ctrl_t);
ois_ctrl_t->msm_sd.sd.internal_ops = &msm_ois_internal_ops;
ois_ctrl_t->msm_sd.sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
media_entity_init(&ois_ctrl_t->msm_sd.sd.entity, 0, NULL, 0);
ois_ctrl_t->msm_sd.sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
ois_ctrl_t->msm_sd.sd.entity.group_id = MSM_CAMERA_SUBDEV_OIS;
ois_ctrl_t->msm_sd.close_seq = MSM_SD_CLOSE_2ND_CATEGORY | 0xB;
msm_sd_register(&ois_ctrl_t->msm_sd);
//g_ois_i2c_client.client = ois_ctrl_t->i2c_client.client;
CDBG("Succeded Exit\n");
return rc;
probe_failure:
if (ois_ctrl_t)
kfree(ois_ctrl_t);
return rc;
}
int of_pinctrl_select_state(struct device_node *np, const char *name)
{
int state, ret;
char *propname;
struct property *prop;
const __be32 *list;
int size, config;
phandle phandle;
struct device_node *np_config;
const char *statename;
if (!of_find_property(np, "pinctrl-0", NULL))
return 0;
/* For each defined state ID */
for (state = 0; ; state++) {
/* Retrieve the pinctrl-* property */
propname = basprintf("pinctrl-%d", state);
prop = of_find_property(np, propname, NULL);
free(propname);
if (!prop) {
ret = -ENODEV;
break;
}
size = prop->length;
list = prop->value;
size /= sizeof(*list);
/* Determine whether pinctrl-names property names the state */
ret = of_property_read_string_index(np, "pinctrl-names",
state, &statename);
/*
* If not, statename is just the integer state ID. But rather
* than dynamically allocate it and have to free it later,
* just point part way into the property name for the string.
*/
if (ret < 0) {
/* strlen("pinctrl-") == 8 */
statename = prop->name + 8;
}
if (strcmp(name, statename))
continue;
/* For every referenced pin configuration node in it */
for (config = 0; config < size; config++) {
phandle = be32_to_cpup(list++);
/* Look up the pin configuration node */
np_config = of_find_node_by_phandle(phandle);
if (!np_config) {
pr_err("prop %s %s index %i invalid phandle\n",
np->full_name, prop->name, config);
ret = -EINVAL;
goto err;
}
/* Parse the node */
ret = pinctrl_config_one(np_config);
if (ret < 0)
goto err;
}
return 0;
}
err:
return ret;
}
static int32_t msm_ois_platform_probe(struct platform_device *pdev)
{
int32_t rc = 0;
struct msm_camera_cci_client *cci_client = NULL;
struct msm_ois_ctrl_t *msm_ois_t = NULL;
struct msm_ois_vreg *vreg_cfg;
CDBG_I("Enter\n");
if (!pdev->dev.of_node) {
pr_err("of_node NULL\n");
return -EINVAL;
}
msm_ois_t = kzalloc(sizeof(struct msm_ois_ctrl_t),
GFP_KERNEL);
if (!msm_ois_t) {
pr_err("%s:%d failed no memory\n", __func__, __LINE__);
return -ENOMEM;
}
rc = of_property_read_u32((&pdev->dev)->of_node, "cell-index",
&pdev->id);
CDBG("cell-index %d, rc %d\n", pdev->id, rc);
if (rc < 0) {
kfree(msm_ois_t);
pr_err("failed rc %d\n", rc);
return rc;
}
msm_ois_t->subdev_id = pdev->id;
rc = of_property_read_u32((&pdev->dev)->of_node, "qcom,cci-master",
&msm_ois_t->cci_master);
CDBG("qcom,cci-master %d, rc %d\n", msm_ois_t->cci_master, rc);
if (rc < 0) {
kfree(msm_ois_t);
pr_err("failed rc %d\n", rc);
return rc;
}
if (of_find_property((&pdev->dev)->of_node,
"qcom,cam-vreg-name", NULL)) {
vreg_cfg = &msm_ois_t->vreg_cfg;
rc = msm_camera_get_dt_vreg_data((&pdev->dev)->of_node,
&vreg_cfg->cam_vreg, &vreg_cfg->num_vreg);
if (rc < 0) {
kfree(msm_ois_t);
pr_err("failed rc %d\n", rc);
return rc;
}
}
msm_ois_t->ois_v4l2_subdev_ops = &msm_ois_subdev_ops;
msm_ois_t->ois_mutex = &msm_ois_mutex;
msm_ois_t->cam_name = pdev->id;
/* Set platform device handle */
msm_ois_t->pdev = pdev;
/* Set device type as platform device */
msm_ois_t->ois_device_type = MSM_CAMERA_PLATFORM_DEVICE;
msm_ois_t->i2c_client.i2c_func_tbl = &msm_sensor_cci_func_tbl;
msm_ois_t->i2c_client.addr_type = MSM_CAMERA_I2C_WORD_ADDR;
msm_ois_t->i2c_client.cci_client = kzalloc(sizeof(
struct msm_camera_cci_client), GFP_KERNEL);
if (!msm_ois_t->i2c_client.cci_client) {
kfree(msm_ois_t->vreg_cfg.cam_vreg);
kfree(msm_ois_t);
pr_err("failed no memory\n");
return -ENOMEM;
}
cci_client = msm_ois_t->i2c_client.cci_client;
cci_client->cci_subdev = msm_cci_get_subdev();
cci_client->cci_i2c_master = MASTER_MAX;
v4l2_subdev_init(&msm_ois_t->msm_sd.sd,
msm_ois_t->ois_v4l2_subdev_ops);
v4l2_set_subdevdata(&msm_ois_t->msm_sd.sd, msm_ois_t);
msm_ois_t->msm_sd.sd.internal_ops = &msm_ois_internal_ops;
msm_ois_t->msm_sd.sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
snprintf(msm_ois_t->msm_sd.sd.name,
ARRAY_SIZE(msm_ois_t->msm_sd.sd.name), "msm_ois");
media_entity_init(&msm_ois_t->msm_sd.sd.entity, 0, NULL, 0);
msm_ois_t->msm_sd.sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
msm_ois_t->msm_sd.sd.entity.group_id = MSM_CAMERA_SUBDEV_OIS;
msm_ois_t->msm_sd.close_seq = MSM_SD_CLOSE_2ND_CATEGORY | 0xB;
rc = msm_sd_register(&msm_ois_t->msm_sd);
//g_ois_i2c_client.cci_client = msm_ois_t->i2c_client.cci_client;
CDBG("Exit[rc::%d]\n", rc);
return rc;
}
static int tb10x_gpio_probe(struct platform_device *pdev)
{
struct tb10x_gpio *tb10x_gpio;
struct resource *mem;
struct device_node *dn = pdev->dev.of_node;
int ret = -EBUSY;
u32 ngpio;
if (!dn)
return -EINVAL;
if (of_property_read_u32(dn, "abilis,ngpio", &ngpio))
return -EINVAL;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem) {
dev_err(&pdev->dev, "No memory resource defined.\n");
return -EINVAL;
}
tb10x_gpio = devm_kzalloc(&pdev->dev, sizeof(*tb10x_gpio), GFP_KERNEL);
if (tb10x_gpio == NULL)
return -ENOMEM;
spin_lock_init(&tb10x_gpio->spinlock);
tb10x_gpio->base = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(tb10x_gpio->base))
return PTR_ERR(tb10x_gpio->base);
tb10x_gpio->gc.label = of_node_full_name(dn);
tb10x_gpio->gc.dev = &pdev->dev;
tb10x_gpio->gc.owner = THIS_MODULE;
tb10x_gpio->gc.direction_input = tb10x_gpio_direction_in;
tb10x_gpio->gc.get = tb10x_gpio_get;
tb10x_gpio->gc.direction_output = tb10x_gpio_direction_out;
tb10x_gpio->gc.set = tb10x_gpio_set;
tb10x_gpio->gc.request = tb10x_gpio_request;
tb10x_gpio->gc.free = tb10x_gpio_free;
tb10x_gpio->gc.base = -1;
tb10x_gpio->gc.ngpio = ngpio;
tb10x_gpio->gc.can_sleep = false;
ret = gpiochip_add(&tb10x_gpio->gc);
if (ret < 0) {
dev_err(&pdev->dev, "Could not add gpiochip.\n");
goto fail_gpiochip_registration;
}
platform_set_drvdata(pdev, tb10x_gpio);
if (of_find_property(dn, "interrupt-controller", NULL)) {
struct irq_chip_generic *gc;
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
dev_err(&pdev->dev, "No interrupt specified.\n");
goto fail_get_irq;
}
tb10x_gpio->gc.to_irq = tb10x_gpio_to_irq;
tb10x_gpio->irq = ret;
ret = devm_request_irq(&pdev->dev, ret, tb10x_gpio_irq_cascade,
IRQF_TRIGGER_NONE | IRQF_SHARED,
dev_name(&pdev->dev), tb10x_gpio);
if (ret != 0)
goto fail_request_irq;
tb10x_gpio->domain = irq_domain_add_linear(dn,
tb10x_gpio->gc.ngpio,
&irq_generic_chip_ops, NULL);
if (!tb10x_gpio->domain) {
ret = -ENOMEM;
goto fail_irq_domain;
}
ret = irq_alloc_domain_generic_chips(tb10x_gpio->domain,
tb10x_gpio->gc.ngpio, 1, tb10x_gpio->gc.label,
handle_edge_irq, IRQ_NOREQUEST, IRQ_NOPROBE,
IRQ_GC_INIT_MASK_CACHE);
if (ret)
goto fail_irq_domain;
gc = tb10x_gpio->domain->gc->gc[0];
gc->reg_base = tb10x_gpio->base;
gc->chip_types[0].type = IRQ_TYPE_EDGE_BOTH;
gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
gc->chip_types[0].chip.irq_mask = irq_gc_mask_clr_bit;
gc->chip_types[0].chip.irq_unmask = irq_gc_mask_set_bit;
gc->chip_types[0].chip.irq_set_type = tb10x_gpio_irq_set_type;
gc->chip_types[0].regs.ack = OFFSET_TO_REG_CHANGE;
gc->chip_types[0].regs.mask = OFFSET_TO_REG_INT_EN;
}
return 0;
fail_irq_domain:
fail_request_irq:
fail_get_irq:
gpiochip_remove(&tb10x_gpio->gc);
fail_gpiochip_registration:
fail_ioremap:
return ret;
}
static int qpnp_flash_led_parse_each_led_dt(struct qpnp_flash_led *led,
struct flash_node_data *flash_node)
{
const char *temp_string;
struct device_node *node = flash_node->cdev.dev->of_node;
int rc = 0;
u32 val;
rc = of_property_read_string(node, "label", &temp_string);
if (!rc) {
if (strcmp(temp_string, "flash") == 0)
flash_node->type = FLASH;
else if (strcmp(temp_string, "torch") == 0)
flash_node->type = TORCH;
else {
dev_err(&led->spmi_dev->dev,
"Wrong flash LED type\n");
return -EINVAL;
}
} else if (rc < 0) {
dev_err(&led->spmi_dev->dev,
"Unable to read flash type\n");
return rc;
}
rc = of_property_read_u32(node, "qcom,current", &val);
if (!rc) {
if (val < FLASH_LED_MIN_CURRENT_MA)
val = FLASH_LED_MIN_CURRENT_MA;
flash_node->prgm_current = (u16)val;
} else if (rc != -EINVAL) {
dev_err(&led->spmi_dev->dev,
"Unable to read current settings\n");
return rc;
}
rc = of_property_read_u32(node, "qcom,duration", &val);
if (!rc)
flash_node->duration = (u16)val;
else if (rc != -EINVAL) {
dev_err(&led->spmi_dev->dev, "Unable to read clamp current\n");
return rc;
}
rc = of_property_read_u32(node, "qcom,id", &val);
if (!rc)
flash_node->id = (u8)val;
else if (rc != -EINVAL) {
dev_err(&led->spmi_dev->dev, "Unable to read led ID\n");
return rc;
}
switch (led->peripheral_type) {
case FLASH_SUBTYPE_SINGLE:
flash_node->current_addr = FLASH_LED0_CURRENT(led->base);
flash_node->enable = FLASH_LED0_ENABLEMENT;
flash_node->trigger = FLASH_LED0_TRIGGER;
break;
case FLASH_SUBTYPE_DUAL:
if (flash_node->id == FLASH_LED_0) {
flash_node->enable = FLASH_LED0_ENABLEMENT;
if (flash_node->type == TORCH)
flash_node->enable = FLASH_MODULE_ENABLE;
flash_node->current_addr =
FLASH_LED0_CURRENT(led->base);
flash_node->trigger = FLASH_LED0_TRIGGER;
} else if (flash_node->id == FLASH_LED_1) {
flash_node->enable = FLASH_LED1_ENABLEMENT;
if (flash_node->type == TORCH)
flash_node->enable = FLASH_MODULE_ENABLE;
flash_node->current_addr =
FLASH_LED1_CURRENT(led->base);
flash_node->trigger = FLASH_LED1_TRIGGER;
}
break;
default:
dev_err(&led->spmi_dev->dev, "Invalid peripheral type\n");
}
if (of_find_property(node, "boost-supply", NULL)) {
INIT_DELAYED_WORK(&flash_node->dwork,
qpnp_flash_led_delayed_reg_work);
flash_node->boost_regulator =
regulator_get(flash_node->cdev.dev, "boost");
if (!flash_node->boost_regulator ||
IS_ERR(flash_node->boost_regulator))
schedule_delayed_work(&flash_node->dwork,
FLASH_BOOST_REGULATOR_PROBE_DELAY_MS);
rc = of_property_read_u32(node, "boost-voltage-max", &val);
if (!rc)
flash_node->boost_voltage_max = val;
else {
dev_err(&led->spmi_dev->dev,
"Unable to read maximum boost regulator voltage\n");
goto error_regulator_config;
}
}
return rc;
error_regulator_config:
regulator_put(flash_node->boost_regulator);
return rc;
}
static int parse_dt(struct device *dev, struct synaptics_dsx_board_data *bdata)
{
int retval;
u32 value;
const char *name;
struct property *prop;
struct device_node *np = dev->of_node;
bdata->irq_gpio = of_get_named_gpio_flags(np,
"synaptics,irq-gpio", 0, NULL);
retval = of_property_read_u32(np, "synaptics,irq-on-state",
&value);
if (retval < 0)
bdata->irq_on_state = 0;
else
bdata->irq_on_state = value;
retval = of_property_read_u32(np, "synaptics,irq-flags", &value);
if (retval < 0)
return retval;
else
bdata->irq_flags = value;
retval = of_property_read_string(np, "synaptics,pwr-reg-name", &name);
if (retval == -EINVAL)
bdata->pwr_reg_name = NULL;
else if (retval < 0)
return retval;
else
bdata->pwr_reg_name = name;
retval = of_property_read_string(np, "synaptics,bus-reg-name", &name);
if (retval == -EINVAL)
bdata->bus_reg_name = NULL;
else if (retval < 0)
return retval;
else
bdata->bus_reg_name = name;
if (of_property_read_bool(np, "synaptics,power-gpio")) {
bdata->power_gpio = of_get_named_gpio_flags(np,
"synaptics,power-gpio", 0, NULL);
retval = of_property_read_u32(np, "synaptics,power-on-state",
&value);
if (retval < 0)
return retval;
else
bdata->power_on_state = value;
} else {
bdata->power_gpio = -1;
}
if (of_property_read_bool(np, "synaptics,power-delay-ms")) {
retval = of_property_read_u32(np, "synaptics,power-delay-ms",
&value);
if (retval < 0)
return retval;
else
bdata->power_delay_ms = value;
} else {
bdata->power_delay_ms = 0;
}
if (of_property_read_bool(np, "synaptics,reset-gpio")) {
bdata->reset_gpio = of_get_named_gpio_flags(np,
"synaptics,reset-gpio", 0, NULL);
retval = of_property_read_u32(np, "synaptics,reset-on-state",
&value);
if (retval < 0)
return retval;
else
bdata->reset_on_state = value;
retval = of_property_read_u32(np, "synaptics,reset-active-ms",
&value);
if (retval < 0)
return retval;
else
bdata->reset_active_ms = value;
} else {
bdata->reset_gpio = -1;
}
if (of_property_read_bool(np, "synaptics,reset-delay-ms")) {
retval = of_property_read_u32(np, "synaptics,reset-delay-ms",
&value);
if (retval < 0)
return retval;
else
bdata->reset_delay_ms = value;
} else {
bdata->reset_delay_ms = 0;
}
if (of_property_read_bool(np, "synaptics,dev-dscrptr-addr")) {
retval = of_property_read_u32(np, "synaptics,dev-dscrptr-addr",
&value);
if (retval < 0)
return retval;
else
bdata->device_descriptor_addr = (unsigned short)value;
} else {
bdata->device_descriptor_addr = 0;
}
if (of_property_read_bool(np, "synaptics,max-y-for-2d")) {
retval = of_property_read_u32(np, "synaptics,max-y-for-2d",
&value);
if (retval < 0)
return retval;
else
bdata->max_y_for_2d = value;
} else {
bdata->max_y_for_2d = -1;
}
bdata->swap_axes = of_property_read_bool(np, "synaptics,swap-axes");
bdata->x_flip = of_property_read_bool(np, "synaptics,x-flip");
bdata->y_flip = of_property_read_bool(np, "synaptics,y-flip");
if (of_property_read_bool(np, "synaptics,ub-i2c-addr")) {
retval = of_property_read_u32(np, "synaptics,ub-i2c-addr",
&value);
if (retval < 0)
return retval;
else
bdata->ub_i2c_addr = (unsigned short)value;
} else {
bdata->ub_i2c_addr = -1;
}
prop = of_find_property(np, "synaptics,cap-button-codes", NULL);
if (prop && prop->length) {
bdata->cap_button_map->map = devm_kzalloc(dev,
prop->length,
GFP_KERNEL);
if (!bdata->cap_button_map->map)
return -ENOMEM;
bdata->cap_button_map->nbuttons = prop->length / sizeof(u32);
retval = of_property_read_u32_array(np,
"synaptics,cap-button-codes",
bdata->cap_button_map->map,
bdata->cap_button_map->nbuttons);
if (retval < 0) {
bdata->cap_button_map->nbuttons = 0;
bdata->cap_button_map->map = NULL;
}
} else {
bdata->cap_button_map->nbuttons = 0;
bdata->cap_button_map->map = NULL;
}
prop = of_find_property(np, "synaptics,vir-button-codes", NULL);
if (prop && prop->length) {
bdata->vir_button_map->map = devm_kzalloc(dev,
prop->length,
GFP_KERNEL);
if (!bdata->vir_button_map->map)
return -ENOMEM;
bdata->vir_button_map->nbuttons = prop->length / sizeof(u32);
bdata->vir_button_map->nbuttons /= 5;
retval = of_property_read_u32_array(np,
"synaptics,vir-button-codes",
bdata->vir_button_map->map,
bdata->vir_button_map->nbuttons * 5);
if (retval < 0) {
bdata->vir_button_map->nbuttons = 0;
bdata->vir_button_map->map = NULL;
}
} else {
bdata->vir_button_map->nbuttons = 0;
bdata->vir_button_map->map = NULL;
}
return 0;
}
static struct pwm_regulator_board *pwm_regulator_parse_dt(
struct platform_device *pdev,
struct of_regulator_match **pwm_reg_matches)
{
struct pwm_regulator_board *pwm_plat_data;
struct device_node *np, *regulators;
struct of_regulator_match *matches;
int idx = 0, ret, count;
struct property *prop;
int length;
const __be32 *init_vol, *max_vol, *min_vol, *suspend_vol, *coefficient, *id;
DBG("%s,line=%d\n", __func__, __LINE__);
pwm_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pwm_plat_data),
GFP_KERNEL);
if (!pwm_plat_data) {
dev_err(&pdev->dev, "Failure to alloc pdata for regulators.\n");
return NULL;
}
np = of_node_get(pdev->dev.of_node);
regulators = of_find_node_by_name(np, "regulators");
if (!regulators) {
dev_err(&pdev->dev, "regulator node not found\n");
return NULL;
}
count = ARRAY_SIZE(pwm_matches);
matches = pwm_matches;
ret = of_regulator_match(&pdev->dev, regulators, matches, count);
of_node_put(regulators);
if (ret < 0) {
dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
ret);
return NULL;
}
pwm_plat_data->num_regulators = count;
*pwm_reg_matches = matches;
for (idx = 0; idx < count; idx++) {
if (!matches[idx].init_data || !matches[idx].of_node)
continue;
pwm_plat_data->pwm_init_data[idx] = matches[idx].init_data;
pwm_plat_data->of_node[idx] = matches[idx].of_node;
}
init_vol = of_get_property(np, "rockchip,pwm_voltage", NULL);
if (init_vol)
pwm_plat_data->pwm_init_vol = be32_to_cpu(*init_vol);
max_vol = of_get_property(np, "rockchip,pwm_max_voltage", NULL);
if (max_vol)
pwm_plat_data->pwm_max_vol = be32_to_cpu(*max_vol);
min_vol = of_get_property(np, "rockchip,pwm_min_voltage", NULL);
if (min_vol)
pwm_plat_data->pwm_min_vol = be32_to_cpu(*min_vol);
suspend_vol = of_get_property(np, "rockchip,pwm_suspend_voltage", NULL);
if (suspend_vol)
pwm_plat_data->pwm_suspend_vol = be32_to_cpu(*suspend_vol);
coefficient = of_get_property(np, "rockchip,pwm_coefficient", NULL);
if (coefficient)
pwm_plat_data->pwm_coefficient = be32_to_cpu(*coefficient);
id = of_get_property(np, "rockchip,pwm_id", NULL);
if (id)
pwm_plat_data->pwm_id = be32_to_cpu(*id);
prop = of_find_property(np, "rockchip,pwm_voltage_map", &length);
if (!prop)
return NULL;
pwm_plat_data->pwm_vol_map_count = length / sizeof(u32);
if (pwm_plat_data->pwm_vol_map_count > 0) {
size_t size = sizeof(*pwm_plat_data->pwm_voltage_map) * pwm_plat_data->pwm_vol_map_count;
pwm_plat_data->pwm_voltage_map = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
if (!pwm_plat_data->pwm_voltage_map)
return NULL;
ret = of_property_read_u32_array(np, "rockchip,pwm_voltage_map",
pwm_plat_data->pwm_voltage_map, pwm_plat_data->pwm_vol_map_count);
if (ret < 0)
printk("pwm voltage map not specified\n");
}
return pwm_plat_data;
}
static int pil_mss_loadable_init(struct modem_data *drv,
struct platform_device *pdev)
{
struct q6v5_data *q6;
struct pil_desc *q6_desc;
struct resource *res;
struct property *prop;
int ret;
q6 = pil_q6v5_init(pdev);
if (IS_ERR(q6))
return PTR_ERR(q6);
drv->q6 = q6;
drv->xo = q6->xo;
q6_desc = &q6->desc;
q6_desc->owner = THIS_MODULE;
q6_desc->proxy_timeout = PROXY_TIMEOUT_MS;
q6_desc->ops = &pil_msa_mss_ops;
q6->self_auth = of_property_read_bool(pdev->dev.of_node,
"qcom,pil-self-auth");
if (q6->self_auth) {
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"rmb_base");
q6->rmb_base = devm_request_and_ioremap(&pdev->dev, res);
if (!q6->rmb_base)
return -ENOMEM;
drv->rmb_base = q6->rmb_base;
q6_desc->ops = &pil_msa_mss_ops_selfauth;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "restart_reg");
if (!res) {
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"restart_reg_sec");
q6->restart_reg_sec = true;
}
q6->restart_reg = devm_request_and_ioremap(&pdev->dev, res);
if (!q6->restart_reg)
return -ENOMEM;
q6->vreg = NULL;
prop = of_find_property(pdev->dev.of_node, "vdd_mss-supply", NULL);
if (prop) {
q6->vreg = devm_regulator_get(&pdev->dev, "vdd_mss");
if (IS_ERR(q6->vreg))
return PTR_ERR(q6->vreg);
ret = regulator_set_voltage(q6->vreg, VDD_MSS_UV,
MAX_VDD_MSS_UV);
if (ret)
dev_err(&pdev->dev, "Failed to set vreg voltage.\n");
ret = regulator_set_optimum_mode(q6->vreg, 100000);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to set vreg mode.\n");
return ret;
}
}
q6->vreg_mx = devm_regulator_get(&pdev->dev, "vdd_mx");
if (IS_ERR(q6->vreg_mx))
return PTR_ERR(q6->vreg_mx);
prop = of_find_property(pdev->dev.of_node, "vdd_mx-uV", NULL);
if (!prop) {
dev_err(&pdev->dev, "Missing vdd_mx-uV property\n");
return -EINVAL;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"cxrail_bhs_reg");
if (res)
q6->cxrail_bhs = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
q6->ahb_clk = devm_clk_get(&pdev->dev, "iface_clk");
if (IS_ERR(q6->ahb_clk))
return PTR_ERR(q6->ahb_clk);
q6->axi_clk = devm_clk_get(&pdev->dev, "bus_clk");
if (IS_ERR(q6->axi_clk))
return PTR_ERR(q6->axi_clk);
q6->rom_clk = devm_clk_get(&pdev->dev, "mem_clk");
if (IS_ERR(q6->rom_clk))
return PTR_ERR(q6->rom_clk);
/* Optional. */
if (of_property_match_string(pdev->dev.of_node,
"qcom,active-clock-names", "gpll0_mss_clk") >= 0)
q6->gpll0_mss_clk = devm_clk_get(&pdev->dev, "gpll0_mss_clk");
ret = pil_desc_init(q6_desc);
return ret;
}
/*
* Translate OpenFirmware node properties into platform_data
*/
static int gpio_keys_get_devtree_pdata(struct device *dev,
struct gpio_keys_platform_data *pdata)
{
struct device_node *node, *pp;
int i;
struct gpio_keys_button *buttons;
struct regulator *vddo_vreg;
u32 reg;
node = dev->of_node;
if (node == NULL)
return -ENODEV;
memset(pdata, 0, sizeof *pdata);
pdata->rep = !!of_get_property(node, "autorepeat", NULL);
pdata->name = of_get_property(node, "input-name", NULL);
vddo_vreg = devm_regulator_get(dev, "vddo");
if (IS_ERR(vddo_vreg))
dev_err(dev, "[Keys] no regulator: ignoring\n");
else{
if(!of_property_read_u32(node, "vddo-voltage", ®))
regulator_set_voltage(vddo_vreg, reg*1000, reg*1000);
if(regulator_enable(vddo_vreg))
return -EINVAL;
}
/* First count the subnodes */
pdata->nbuttons = 0;
pp = NULL;
while ((pp = of_get_next_child(node, pp)))
pdata->nbuttons++;
if (pdata->nbuttons == 0)
return -ENODEV;
buttons = kzalloc(pdata->nbuttons * (sizeof *buttons), GFP_KERNEL);
if (!buttons)
return -ENOMEM;
pp = NULL;
i = 0;
while ((pp = of_get_next_child(node, pp))) {
enum of_gpio_flags flags;
if (!of_find_property(pp, "gpios", NULL)) {
pdata->nbuttons--;
dev_warn(dev, "Found button without gpios\n");
continue;
}
buttons[i].gpio = of_get_gpio_flags(pp, 0, &flags);
buttons[i].active_low = flags & OF_GPIO_ACTIVE_LOW;
if (of_property_read_u32(pp, "linux,code", ®)) {
dev_err(dev, "Button without keycode: 0x%x\n", buttons[i].gpio);
goto out_fail;
}
buttons[i].code = reg;
buttons[i].desc = of_get_property(pp, "label", NULL);
#ifdef CONFIG_SENSORS_HALL
if ((buttons[i].code == SW_FLIP) || (buttons[i].code == SW_LID)) {
pdata->gpio_flip_cover = buttons[i].gpio;
pdata->flip_code = buttons[i].code;
pdata->nbuttons--;
#ifdef CONFIG_SENSORS_HALL_IRQ_CTRL
pdata->workaround_set = (of_property_read_bool(pp, "hall_wa_disable") ? false : true);
#endif
dev_info(dev, "[Hall_IC] device tree was founded\n");
continue;
}
#endif
if (of_property_read_u32(pp, "linux,input-type", ®) == 0)
buttons[i].type = reg;
else
buttons[i].type = EV_KEY;
buttons[i].wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
if (of_property_read_u32(pp, "debounce-interval", ®) == 0)
buttons[i].debounce_interval = reg;
else
buttons[i].debounce_interval = 5;
dev_info(dev, "%s: label:%s, gpio:%d, code:%d, type:%d, debounce:%d\n",
__func__, buttons[i].desc, buttons[i].gpio,
buttons[i].code, buttons[i].type,
buttons[i].debounce_interval);
i++;
}
pdata->buttons = buttons;
return 0;
out_fail:
kfree(buttons);
return -ENODEV;
}
/*
* Translate OpenFirmware node properties into platform_data
*/
static int gpio_keys_get_devtree_pdata(struct device *dev,
struct gpio_keys_platform_data *pdata)
{
struct device_node *node, *pp;
int i;
struct gpio_keys_button *buttons;
u32 reg;
node = dev->of_node;
if (node == NULL)
return -ENODEV;
memset(pdata, 0, sizeof *pdata);
pdata->rep = !!of_get_property(node, "autorepeat", NULL);
/* First count the subnodes */
pdata->nbuttons = 0;
pp = NULL;
while ((pp = of_get_next_child(node, pp)))
pdata->nbuttons++;
if (pdata->nbuttons == 0)
return -ENODEV;
buttons = kzalloc(pdata->nbuttons * (sizeof *buttons), GFP_KERNEL);
if (!buttons)
return -ENOMEM;
pp = NULL;
i = 0;
while ((pp = of_get_next_child(node, pp))) {
enum of_gpio_flags flags;
if (!of_find_property(pp, "gpios", NULL)) {
pdata->nbuttons--;
dev_warn(dev, "Found button without gpios\n");
continue;
}
buttons[i].gpio = of_get_gpio_flags(pp, 0, &flags);
buttons[i].active_low = flags & OF_GPIO_ACTIVE_LOW;
if (of_property_read_u32(pp, "linux,code", ®)) {
dev_err(dev, "Button without keycode: 0x%x\n", buttons[i].gpio);
goto out_fail;
}
buttons[i].code = reg;
buttons[i].desc = of_get_property(pp, "label", NULL);
if (of_property_read_u32(pp, "linux,input-type", ®) == 0)
buttons[i].type = reg;
else
buttons[i].type = EV_KEY;
buttons[i].wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
if (of_property_read_u32(pp, "debounce-interval", ®) == 0)
buttons[i].debounce_interval = reg;
else
buttons[i].debounce_interval = 5;
i++;
}
pdata->buttons = buttons;
return 0;
out_fail:
kfree(buttons);
return -ENODEV;
}
static struct tegra_emc_pdata *tegra_emc_dt_parse_pdata(
struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct device_node *tnp, *iter;
struct tegra_emc_pdata *pdata;
int ret, i, num_tables;
u32 tegra_bct_strapping;
if (!np)
return NULL;
tegra_bct_strapping = tegra_get_bct_strapping();
if (of_find_property(np, "nvidia,use-ram-code", NULL)) {
tnp = tegra_emc_ramcode_devnode(np);
if (!tnp)
dev_warn(&pdev->dev,
"can't find emc table for ram-code 0x%02x\n",
tegra_bct_strapping);
} else
tnp = of_node_get(np);
if (!tnp)
return NULL;
num_tables = 0;
for_each_child_of_node(tnp, iter)
if (of_device_is_compatible(iter, "nvidia,tegra20-emc-table"))
num_tables++;
if (!num_tables) {
pdata = NULL;
goto out;
}
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
pdata->tables = devm_kzalloc(&pdev->dev,
sizeof(*pdata->tables) * num_tables,
GFP_KERNEL);
i = 0;
for_each_child_of_node(tnp, iter) {
u32 prop;
ret = of_property_read_u32(iter, "clock-frequency", &prop);
if (ret) {
dev_err(&pdev->dev, "no clock-frequency in %s\n",
iter->full_name);
continue;
}
pdata->tables[i].rate = prop;
ret = of_property_read_u32_array(iter, "nvidia,emc-registers",
pdata->tables[i].regs,
TEGRA_EMC_NUM_REGS);
if (ret) {
dev_err(&pdev->dev,
"malformed emc-registers property in %s\n",
iter->full_name);
continue;
}
i++;
}
