static irqreturn_t imx_hdmi_irq(int irq, void *dev_id)
{
struct imx_hdmi *hdmi = dev_id;
u8 intr_stat;
u8 phy_int_pol;
intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0);
if (intr_stat & HDMI_IH_PHY_STAT0_HPD) {
if (phy_int_pol & HDMI_PHY_HPD) {
dev_dbg(hdmi->dev, "EVENT=plugin\n");
hdmi_modb(hdmi, 0, HDMI_PHY_HPD, HDMI_PHY_POL0);
imx_hdmi_poweron(hdmi);
} else {
dev_dbg(hdmi->dev, "EVENT=plugout\n");
hdmi_modb(hdmi, HDMI_PHY_HPD, HDMI_PHY_HPD,
HDMI_PHY_POL0);
imx_hdmi_poweroff(hdmi);
}
drm_helper_hpd_irq_event(hdmi->connector.dev);
}
hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0);
return IRQ_HANDLED;
}
unsigned int hdmi_read4(unsigned int reg)
{
/* read a four byte address from registers */
return (hdmi_readb(reg + 3) << 24) |
(hdmi_readb(reg + 2) << 16) |
(hdmi_readb(reg + 1) << 8) |
hdmi_readb(reg);
}
static bool hdmi_phy_wait_i2c_done(struct imx_hdmi *hdmi, int msec)
{
unsigned char val = 0;
val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3;
while (!val) {
udelay(1000);
if (msec-- == 0)
return false;
val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3;
}
return true;
}
static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
{
u8 val = hdmi_readb(hdmi, reg) & ~mask;
val |= data & mask;
hdmi_writeb(hdmi, val, reg);
}
static enum drm_connector_status imx_hdmi_connector_detect(struct drm_connector
*connector, bool force)
{
struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi,
connector);
return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ?
connector_status_connected : connector_status_disconnected;
}
static void hdmi_dma_irq_set(bool set)
{
u8 val = hdmi_readb(HDMI_AHB_DMA_MASK);
if (set)
val |= HDMI_AHB_DMA_DONE;
else
val &= (u8)~HDMI_AHB_DMA_DONE;
hdmi_writeb(val, HDMI_AHB_DMA_MASK);
}
static irqreturn_t imx_hdmi_hardirq(int irq, void *dev_id)
{
struct imx_hdmi *hdmi = dev_id;
u8 intr_stat;
intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
if (intr_stat)
hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
return intr_stat ? IRQ_WAKE_THREAD : IRQ_NONE;
}
static void hdmi_mask(int mask)
{
u8 regval = hdmi_readb(HDMI_AHB_DMA_MASK);
if (mask)
regval |= HDMI_AHB_DMA_ERROR | HDMI_AHB_DMA_FIFO_EMPTY;
else
regval &= (u8)~(HDMI_AHB_DMA_ERROR | HDMI_AHB_DMA_FIFO_EMPTY);
hdmi_writeb(regval, HDMI_AHB_DMA_MASK);
}
static void hdmi_mask(int mask)
{
u8 regvalue;
regvalue = hdmi_readb(HDMI_AHB_DMA_MASK);
if (mask) {
regvalue |= HDMI_AHB_DMA_ERROR | HDMI_AHB_DMA_FIFO_EMPTY;
hdmi_writeb(regvalue, HDMI_AHB_DMA_MASK);
} else {
regvalue &= (u8)~(HDMI_AHB_DMA_ERROR | HDMI_AHB_DMA_FIFO_EMPTY);
hdmi_writeb(regvalue, HDMI_AHB_DMA_MASK);
}
}
static void hdmi_dma_irq_mask(int mask)
{
u8 regvalue;
regvalue = hdmi_readb(HDMI_AHB_DMA_MASK);
if (mask) {
regvalue |= HDMI_AHB_DMA_DONE;
hdmi_writeb(regvalue, HDMI_AHB_DMA_MASK);
} else {
regvalue &= (u8)~HDMI_AHB_DMA_DONE;
hdmi_writeb(regvalue, HDMI_AHB_DMA_MASK);
}
}
static bool hdmi_phy_wait_i2c_done(struct dw_hdmi *hdmi, int msec)
{
u32 val;
while ((val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) {
if (msec-- == 0)
return false;
udelay(1000);
}
hdmi_writeb(hdmi, val, HDMI_IH_I2CMPHY_STAT0);
return true;
}
static void initialize_hdmi_ih_mutes(void)
{
u8 ih_mute;
/*
* Boot up defaults are:
* HDMI_IH_MUTE = 0x03 (disabled)
* HDMI_IH_MUTE_* = 0x00 (enabled)
*/
/* Disable top level interrupt bits in HDMI block */
ih_mute = hdmi_readb(HDMI_IH_MUTE) |
HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
HDMI_IH_MUTE_MUTE_ALL_INTERRUPT;
hdmi_writeb(ih_mute, HDMI_IH_MUTE);
/* by default mask all interrupts */
hdmi_writeb(0xff, HDMI_VP_MASK);
hdmi_writeb(0xff, HDMI_FC_MASK0);
hdmi_writeb(0xff, HDMI_FC_MASK1);
hdmi_writeb(0xff, HDMI_FC_MASK2);
hdmi_writeb(0xff, HDMI_PHY_MASK0);
hdmi_writeb(0xff, HDMI_PHY_I2CM_INT_ADDR);
hdmi_writeb(0xff, HDMI_PHY_I2CM_CTLINT_ADDR);
hdmi_writeb(0xff, HDMI_AUD_INT);
hdmi_writeb(0xff, HDMI_AUD_SPDIFINT);
hdmi_writeb(0xff, HDMI_AUD_HBR_MASK);
hdmi_writeb(0xff, HDMI_GP_MASK);
hdmi_writeb(0xff, HDMI_A_APIINTMSK);
hdmi_writeb(0xff, HDMI_CEC_MASK);
hdmi_writeb(0xff, HDMI_I2CM_INT);
hdmi_writeb(0xff, HDMI_I2CM_CTLINT);
/* Disable interrupts in the IH_MUTE_* registers */
hdmi_writeb(0xff, HDMI_IH_MUTE_FC_STAT0);
hdmi_writeb(0xff, HDMI_IH_MUTE_FC_STAT1);
hdmi_writeb(0xff, HDMI_IH_MUTE_FC_STAT2);
hdmi_writeb(0xff, HDMI_IH_MUTE_AS_STAT0);
hdmi_writeb(0xff, HDMI_IH_MUTE_PHY_STAT0);
hdmi_writeb(0xff, HDMI_IH_MUTE_I2CM_STAT0);
hdmi_writeb(0xff, HDMI_IH_MUTE_CEC_STAT0);
hdmi_writeb(0xff, HDMI_IH_MUTE_VP_STAT0);
hdmi_writeb(0xff, HDMI_IH_MUTE_I2CMPHY_STAT0);
hdmi_writeb(0xff, HDMI_IH_MUTE_AHBDMAAUD_STAT0);
/* Enable top level interrupt bits in HDMI block */
ih_mute &= ~(HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
HDMI_IH_MUTE_MUTE_ALL_INTERRUPT);
hdmi_writeb(ih_mute, HDMI_IH_MUTE);
}
static void dumpregs(void)
{
int n, cts;
cts = (hdmi_readb(HDMI_AUD_CTS3) << 16) |
(hdmi_readb(HDMI_AUD_CTS2) << 8) |
hdmi_readb(HDMI_AUD_CTS1);
n = (hdmi_readb(HDMI_AUD_N3) << 16) |
(hdmi_readb(HDMI_AUD_N2) << 8) |
hdmi_readb(HDMI_AUD_N1);
pr_debug("\n");
pr_debug("HDMI_PHY_CONF0 0x%02x\n", hdmi_readb(HDMI_PHY_CONF0));
pr_debug("HDMI_MC_CLKDIS 0x%02x\n", hdmi_readb(HDMI_MC_CLKDIS));
pr_debug("HDMI_AUD_N[1-3] 0x%06x (decimal %d)\n", n, n);
pr_debug("HDMI_AUD_CTS[1-3] 0x%06x (decimal %d)\n", cts, cts);
pr_debug("HDMI_FC_AUDSCONF 0x%02x\n", hdmi_readb(HDMI_FC_AUDSCONF));
}
/* Workaround to clear the overflow condition */
static void imx_hdmi_clear_overflow(struct imx_hdmi *hdmi)
{
int count;
u8 val;
/* TMDS software reset */
hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, HDMI_MC_SWRSTZ);
val = hdmi_readb(hdmi, HDMI_FC_INVIDCONF);
if (hdmi->dev_type == IMX6DL_HDMI) {
hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
return;
}
for (count = 0; count < 4; count++)
hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
}
bool hdmi_check_overflow(void)
{
u8 val, lo, hi;
val = hdmi_readb(HDMI_IH_FC_STAT2);
lo = (val & HDMI_IH_FC_STAT2_LOW_PRIORITY_OVERFLOW) != 0;
hi = (val & HDMI_IH_FC_STAT2_HIGH_PRIORITY_OVERFLOW) != 0;
if ((lo != overflow_lo) || (hi != overflow_hi)) {
pr_debug("%s LowPriority=%d HighPriority=%d <=======================\n",
__func__, lo, hi);
overflow_lo = lo;
overflow_hi = hi;
return true;
}
return false;
}
static void hdmi_set_clock_regenerator_n(unsigned int value)
{
u8 val;
if (!hdmi_dma_running) {
hdmi_writeb(value & 0xff, HDMI_AUD_N1);
hdmi_writeb(0, HDMI_AUD_N2);
hdmi_writeb(0, HDMI_AUD_N3);
}
hdmi_writeb(value & 0xff, HDMI_AUD_N1);
hdmi_writeb((value >> 8) & 0xff, HDMI_AUD_N2);
hdmi_writeb((value >> 16) & 0x0f, HDMI_AUD_N3);
/* nshift factor = 0 */
val = hdmi_readb(HDMI_AUD_CTS3);
val &= ~HDMI_AUD_CTS3_N_SHIFT_MASK;
hdmi_writeb(val, HDMI_AUD_CTS3);
}
static void hdmi_set_clock_regenerator_cts(unsigned int cts)
{
u8 val;
if (!hdmi_dma_running) {
hdmi_writeb(cts & 0xff, HDMI_AUD_CTS1);
hdmi_writeb(0, HDMI_AUD_CTS2);
hdmi_writeb(0, HDMI_AUD_CTS3);
}
/* Must be set/cleared first */
val = hdmi_readb(HDMI_AUD_CTS3);
val &= ~HDMI_AUD_CTS3_CTS_MANUAL;
hdmi_writeb(val, HDMI_AUD_CTS3);
hdmi_writeb(cts & 0xff, HDMI_AUD_CTS1);
hdmi_writeb((cts >> 8) & 0xff, HDMI_AUD_CTS2);
hdmi_writeb(((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) |
HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
}
int dw_hdmi_bind(struct device *dev, struct device *master,
void *data, struct drm_encoder *encoder,
struct resource *iores, int irq,
const struct dw_hdmi_plat_data *plat_data)
{
struct drm_device *drm = data;
struct device_node *np = dev->of_node;
struct device_node *ddc_node;
struct dw_hdmi *hdmi;
int ret;
u32 val = 1;
hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
if (!hdmi)
return -ENOMEM;
hdmi->plat_data = plat_data;
hdmi->dev = dev;
hdmi->dev_type = plat_data->dev_type;
hdmi->sample_rate = 48000;
hdmi->ratio = 100;
hdmi->encoder = encoder;
mutex_init(&hdmi->audio_mutex);
of_property_read_u32(np, "reg-io-width", &val);
switch (val) {
case 4:
hdmi->write = dw_hdmi_writel;
hdmi->read = dw_hdmi_readl;
break;
case 1:
hdmi->write = dw_hdmi_writeb;
hdmi->read = dw_hdmi_readb;
break;
default:
dev_err(dev, "reg-io-width must be 1 or 4\n");
return -EINVAL;
}
ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
if (ddc_node) {
hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
of_node_put(ddc_node);
if (!hdmi->ddc) {
dev_dbg(hdmi->dev, "failed to read ddc node\n");
return -EPROBE_DEFER;
}
} else {
dev_dbg(hdmi->dev, "no ddc property found\n");
}
hdmi->regs = devm_ioremap_resource(dev, iores);
if (IS_ERR(hdmi->regs))
return PTR_ERR(hdmi->regs);
hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
if (IS_ERR(hdmi->isfr_clk)) {
ret = PTR_ERR(hdmi->isfr_clk);
dev_err(hdmi->dev, "Unable to get HDMI isfr clk: %d\n", ret);
return ret;
}
ret = clk_prepare_enable(hdmi->isfr_clk);
if (ret) {
dev_err(hdmi->dev, "Cannot enable HDMI isfr clock: %d\n", ret);
return ret;
}
hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
if (IS_ERR(hdmi->iahb_clk)) {
ret = PTR_ERR(hdmi->iahb_clk);
dev_err(hdmi->dev, "Unable to get HDMI iahb clk: %d\n", ret);
goto err_isfr;
}
ret = clk_prepare_enable(hdmi->iahb_clk);
if (ret) {
dev_err(hdmi->dev, "Cannot enable HDMI iahb clock: %d\n", ret);
goto err_isfr;
}
/* Product and revision IDs */
dev_info(dev,
"Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
hdmi_readb(hdmi, HDMI_DESIGN_ID),
hdmi_readb(hdmi, HDMI_REVISION_ID),
hdmi_readb(hdmi, HDMI_PRODUCT_ID0),
hdmi_readb(hdmi, HDMI_PRODUCT_ID1));
initialize_hdmi_ih_mutes(hdmi);
ret = devm_request_threaded_irq(dev, irq, dw_hdmi_hardirq,
dw_hdmi_irq, IRQF_SHARED,
dev_name(dev), hdmi);
if (ret)
goto err_iahb;
/*
* To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator
* N and cts values before enabling phy
*/
hdmi_init_clk_regenerator(hdmi);
/*
* Configure registers related to HDMI interrupt
* generation before registering IRQ.
*/
hdmi_writeb(hdmi, HDMI_PHY_HPD, HDMI_PHY_POL0);
/* Clear Hotplug interrupts */
hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0);
ret = dw_hdmi_fb_registered(hdmi);
if (ret)
goto err_iahb;
ret = dw_hdmi_register(drm, hdmi);
if (ret)
goto err_iahb;
/* Unmute interrupts */
hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0);
dev_set_drvdata(dev, hdmi);
return 0;
err_iahb:
clk_disable_unprepare(hdmi->iahb_clk);
err_isfr:
clk_disable_unprepare(hdmi->isfr_clk);
return ret;
}
static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
const struct of_device_id *of_id =
of_match_device(imx_hdmi_dt_ids, dev);
struct drm_device *drm = data;
struct device_node *np = dev->of_node;
struct device_node *ddc_node;
struct imx_hdmi *hdmi;
struct resource *iores;
int ret, irq;
hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
if (!hdmi)
return -ENOMEM;
hdmi->dev = dev;
hdmi->sample_rate = 48000;
hdmi->ratio = 100;
if (of_id) {
const struct platform_device_id *device_id = of_id->data;
hdmi->dev_type = device_id->driver_data;
}
ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
if (ddc_node) {
hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
if (!hdmi->ddc)
dev_dbg(hdmi->dev, "failed to read ddc node\n");
of_node_put(ddc_node);
} else {
dev_dbg(hdmi->dev, "no ddc property found\n");
}
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return -EINVAL;
ret = devm_request_threaded_irq(dev, irq, imx_hdmi_hardirq,
imx_hdmi_irq, IRQF_SHARED,
dev_name(dev), hdmi);
if (ret)
return ret;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hdmi->regs = devm_ioremap_resource(dev, iores);
if (IS_ERR(hdmi->regs))
return PTR_ERR(hdmi->regs);
hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");
if (IS_ERR(hdmi->regmap))
return PTR_ERR(hdmi->regmap);
hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
if (IS_ERR(hdmi->isfr_clk)) {
ret = PTR_ERR(hdmi->isfr_clk);
dev_err(hdmi->dev,
"Unable to get HDMI isfr clk: %d\n", ret);
return ret;
}
ret = clk_prepare_enable(hdmi->isfr_clk);
if (ret) {
dev_err(hdmi->dev,
"Cannot enable HDMI isfr clock: %d\n", ret);
return ret;
}
hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
if (IS_ERR(hdmi->iahb_clk)) {
ret = PTR_ERR(hdmi->iahb_clk);
dev_err(hdmi->dev,
"Unable to get HDMI iahb clk: %d\n", ret);
goto err_isfr;
}
ret = clk_prepare_enable(hdmi->iahb_clk);
if (ret) {
dev_err(hdmi->dev,
"Cannot enable HDMI iahb clock: %d\n", ret);
goto err_isfr;
}
/* Product and revision IDs */
dev_info(dev,
"Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
hdmi_readb(hdmi, HDMI_DESIGN_ID),
hdmi_readb(hdmi, HDMI_REVISION_ID),
hdmi_readb(hdmi, HDMI_PRODUCT_ID0),
hdmi_readb(hdmi, HDMI_PRODUCT_ID1));
initialize_hdmi_ih_mutes(hdmi);
/*
* To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator
* N and cts values before enabling phy
*/
hdmi_init_clk_regenerator(hdmi);
/*
* Configure registers related to HDMI interrupt
* generation before registering IRQ.
*/
hdmi_writeb(hdmi, HDMI_PHY_HPD, HDMI_PHY_POL0);
/* Clear Hotplug interrupts */
hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0);
ret = imx_hdmi_fb_registered(hdmi);
if (ret)
goto err_iahb;
ret = imx_hdmi_register(drm, hdmi);
if (ret)
goto err_iahb;
/* Unmute interrupts */
hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0);
dev_set_drvdata(dev, hdmi);
return 0;
err_iahb:
clk_disable_unprepare(hdmi->iahb_clk);
err_isfr:
clk_disable_unprepare(hdmi->isfr_clk);
return ret;
}
static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
unsigned char res, int cscon)
{
unsigned res_idx, i;
u8 val, msec;
if (prep)
return -EINVAL;
switch (res) {
case 0: /* color resolution 0 is 8 bit colour depth */
case 8:
res_idx = RES_8;
break;
case 10:
res_idx = RES_10;
break;
case 12:
res_idx = RES_12;
break;
default:
return -EINVAL;
}
/* Enable csc path */
if (cscon)
val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH;
else
val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS;
hdmi_writeb(hdmi, val, HDMI_MC_FLOWCTRL);
/* gen2 tx power off */
imx_hdmi_phy_gen2_txpwron(hdmi, 0);
/* gen2 pddq */
imx_hdmi_phy_gen2_pddq(hdmi, 1);
/* PHY reset */
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_DEASSERT, HDMI_MC_PHYRSTZ);
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_ASSERT, HDMI_MC_PHYRSTZ);
hdmi_writeb(hdmi, HDMI_MC_HEACPHY_RST_ASSERT, HDMI_MC_HEACPHY_RST);
hdmi_phy_test_clear(hdmi, 1);
hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2,
HDMI_PHY_I2CM_SLAVE_ADDR);
hdmi_phy_test_clear(hdmi, 0);
/* PLL/MPLL Cfg - always match on final entry */
for (i = 0; i < ARRAY_SIZE(mpll_config) - 1; i++)
if (hdmi->hdmi_data.video_mode.mpixelclock <=
mpll_config[i].mpixelclock)
break;
hdmi_phy_i2c_write(hdmi, mpll_config[i].res[res_idx].cpce, 0x06);
hdmi_phy_i2c_write(hdmi, mpll_config[i].res[res_idx].gmp, 0x15);
for (i = 0; i < ARRAY_SIZE(curr_ctrl); i++)
if (hdmi->hdmi_data.video_mode.mpixelclock <=
curr_ctrl[i].mpixelclock)
break;
if (i >= ARRAY_SIZE(curr_ctrl)) {
dev_err(hdmi->dev,
"Pixel clock %d - unsupported by HDMI\n",
hdmi->hdmi_data.video_mode.mpixelclock);
return -EINVAL;
}
/* CURRCTRL */
hdmi_phy_i2c_write(hdmi, curr_ctrl[i].curr[res_idx], 0x10);
hdmi_phy_i2c_write(hdmi, 0x0000, 0x13); /* PLLPHBYCTRL */
hdmi_phy_i2c_write(hdmi, 0x0006, 0x17);
/* RESISTANCE TERM 133Ohm Cfg */
hdmi_phy_i2c_write(hdmi, 0x0005, 0x19); /* TXTERM */
/* PREEMP Cgf 0.00 */
hdmi_phy_i2c_write(hdmi, 0x800d, 0x09); /* CKSYMTXCTRL */
/* TX/CK LVL 10 */
hdmi_phy_i2c_write(hdmi, 0x01ad, 0x0E); /* VLEVCTRL */
/* REMOVE CLK TERM */
hdmi_phy_i2c_write(hdmi, 0x8000, 0x05); /* CKCALCTRL */
imx_hdmi_phy_enable_power(hdmi, 1);
/* toggle TMDS enable */
imx_hdmi_phy_enable_tmds(hdmi, 0);
imx_hdmi_phy_enable_tmds(hdmi, 1);
/* gen2 tx power on */
imx_hdmi_phy_gen2_txpwron(hdmi, 1);
imx_hdmi_phy_gen2_pddq(hdmi, 0);
/*Wait for PHY PLL lock */
msec = 5;
do {
val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK;
if (!val)
break;
if (msec == 0) {
dev_err(hdmi->dev, "PHY PLL not locked\n");
return -ETIMEDOUT;
}
udelay(1000);
msec--;
} while (1);
return 0;
}
static void dumpregs(void)
{
pr_debug("\n");
pr_debug("HDMI_AHB_DMA_CONF0 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_CONF0));
pr_debug("HDMI_AHB_DMA_START 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_START));
pr_debug("HDMI_AHB_DMA_STOP 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_STOP));
pr_debug("HDMI_AHB_DMA_THRSLD 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_THRSLD));
pr_debug("HDMI_AHB_DMA_STRADDR[0-3] 0x%08x\n", hdmi_read4(HDMI_AHB_DMA_STRADDR0));
pr_debug("HDMI_AHB_DMA_STPADDR[0-3] 0x%08x\n", hdmi_read4(HDMI_AHB_DMA_STPADDR0));
pr_debug("HDMI_AHB_DMA_BSTADDR[0-3] 0x%08x\n", hdmi_read4(HDMI_AHB_DMA_BSTADDR0));
pr_debug("HDMI_AHB_DMA_MBLENGTH0 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_MBLENGTH0));
pr_debug("HDMI_AHB_DMA_MBLENGTH1 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_MBLENGTH1));
pr_debug("HDMI_AHB_DMA_STAT 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_STAT));
pr_debug("HDMI_AHB_DMA_INT 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_INT));
pr_debug("HDMI_AHB_DMA_MASK 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_MASK));
pr_debug("HDMI_AHB_DMA_POL 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_POL));
pr_debug("HDMI_AHB_DMA_CONF1 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_CONF1));
pr_debug("HDMI_AHB_DMA_BUFFSTAT 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_BUFFSTAT));
pr_debug("HDMI_AHB_DMA_BUFFINT 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_BUFFINT));
pr_debug("HDMI_AHB_DMA_BUFFMASK 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_BUFFMASK));
pr_debug("HDMI_AHB_DMA_BUFFPOL 0x%02x\n", hdmi_readb(HDMI_AHB_DMA_BUFFPOL));
pr_debug("HDMI_IH_MUTE_AHBDMAAUD_STAT0 0x%02x\n", hdmi_readb(HDMI_IH_MUTE_AHBDMAAUD_STAT0));
pr_debug("HDMI_IH_AHBDMAAUD_STAT0 0x%02x\n", hdmi_readb(HDMI_IH_AHBDMAAUD_STAT0));
pr_debug("HDMI_IH_MUTE 0x%02x\n", hdmi_readb(HDMI_IH_MUTE));
pr_debug("\n");
}
void hdmi_mask_writeb(u8 data, unsigned int reg, u8 shift, u8 mask)
{
u8 value = hdmi_readb(reg) & ~mask;
value |= (data << shift) & mask;
hdmi_writeb(value, reg);
}
static u8 hdmi_dma_get_irq_status(void)
{
return hdmi_readb(HDMI_IH_AHBDMAAUD_STAT0);
}