int dsi_panel_init(void)
{
int rc;
if (!panel_private) {
panel_private = kzalloc(sizeof(struct dsi_panel_private),
GFP_KERNEL);
if (!panel_private) {
pr_err("fail to alloc dsi panel private data\n");
return -ENOMEM;
}
}
rc = dsi_buf_alloc(&panel_private->dsi_panel_tx_buf,
ALIGN(DSI_BUF_SIZE,
SZ_4K));
if (rc)
return rc;
rc = dsi_buf_alloc(&panel_private->dsi_panel_rx_buf,
ALIGN(DSI_BUF_SIZE,
SZ_4K));
if (rc)
return rc;
return 0;
}
int dsi_panel_device_register_v2(struct platform_device *dev,
struct mdss_dsi_ctrl_pdata *ctrl_pdata)
{
struct mipi_panel_info *mipi;
int rc;
u8 lanes = 0, bpp;
u32 h_period, v_period;
struct mdss_panel_info *pinfo = &(ctrl_pdata->panel_data.panel_info);
h_period = ((pinfo->lcdc.h_pulse_width)
+ (pinfo->lcdc.h_back_porch)
+ (pinfo->xres)
+ (pinfo->lcdc.h_front_porch));
v_period = ((pinfo->lcdc.v_pulse_width)
+ (pinfo->lcdc.v_back_porch)
+ (pinfo->yres)
+ (pinfo->lcdc.v_front_porch));
mipi = &pinfo->mipi;
pinfo->type =
((mipi->mode == DSI_VIDEO_MODE)
? MIPI_VIDEO_PANEL : MIPI_CMD_PANEL);
if (mipi->data_lane3)
lanes += 1;
if (mipi->data_lane2)
lanes += 1;
if (mipi->data_lane1)
lanes += 1;
if (mipi->data_lane0)
lanes += 1;
if ((mipi->dst_format == DSI_CMD_DST_FORMAT_RGB888)
|| (mipi->dst_format == DSI_VIDEO_DST_FORMAT_RGB888)
|| (mipi->dst_format == DSI_VIDEO_DST_FORMAT_RGB666_LOOSE))
bpp = 3;
else if ((mipi->dst_format == DSI_CMD_DST_FORMAT_RGB565)
|| (mipi->dst_format == DSI_VIDEO_DST_FORMAT_RGB565))
bpp = 2;
else
bpp = 3; /* Default format set to RGB888 */
if (pinfo->type == MIPI_VIDEO_PANEL &&
!pinfo->clk_rate) {
h_period += pinfo->lcdc.xres_pad;
v_period += pinfo->lcdc.yres_pad;
if (lanes > 0) {
pinfo->clk_rate =
((h_period * v_period * (mipi->frame_rate) * bpp * 8)
/ lanes);
} else {
pr_err("%s: forcing mdss_dsi lanes to 1\n", __func__);
pinfo->clk_rate =
(h_period * v_period
* (mipi->frame_rate) * bpp * 8);
}
}
ctrl_pdata->panel_data.event_handler = dsi_event_handler;
rc = dsi_buf_alloc(&dsi_panel_tx_buf,
ALIGN(DSI_BUF_SIZE,
SZ_4K));
if (rc)
return rc;
/*
* register in mdp driver
*/
rc = mdss_register_panel(dev, &(ctrl_pdata->panel_data));
if (rc) {
dev_err(&dev->dev, "unable to register MIPI DSI panel\n");
kfree(dsi_panel_tx_buf.start);
return rc;
}
pr_debug("%s: Panal data initialized\n", __func__);
return 0;
}
