platform: msm_shared: add delay to make sure FB ready before backlight on
Add SPI cmd post function for SPI panel to make sure FB ready
before backlight on.
Change-Id: Ibee25415634863aea0f6fb7ea2809f7348ac9952
Signed-off-by: Wenjun Zhang <wjzhan@codeaurora.org>
diff --git a/platform/msm_shared/display.c b/platform/msm_shared/display.c
index cf4db48..780ecfc 100644
--- a/platform/msm_shared/display.c
+++ b/platform/msm_shared/display.c
@@ -257,6 +257,9 @@
ret = mdss_spi_on(pinfo, &(panel->fb));
if (ret)
goto msm_display_on_out;
+ ret = mdss_spi_cmd_post_on(pinfo);
+ if (ret)
+ goto msm_display_on_out;
break;
#endif
#ifdef DISPLAY_TYPE_QPIC
diff --git a/platform/msm_shared/include/mdp4.h b/platform/msm_shared/include/mdp4.h
index 8bbb3a7..b27e363 100644
--- a/platform/msm_shared/include/mdp4.h
+++ b/platform/msm_shared/include/mdp4.h
@@ -128,4 +128,5 @@
int mdss_spi_init(void);
int mdss_spi_panel_init(struct msm_panel_info *pinfo);
int mdss_spi_on(struct msm_panel_info *pinfo, struct fbcon_config *fb);
+int mdss_spi_cmd_post_on(struct msm_panel_info *pinfo);
#endif
diff --git a/platform/msm_shared/mdss_spi.c b/platform/msm_shared/mdss_spi.c
index 4819478..4cd5d4b 100644
--- a/platform/msm_shared/mdss_spi.c
+++ b/platform/msm_shared/mdss_spi.c
@@ -171,3 +171,32 @@
return ret;
}
+
+int mdss_spi_cmd_post_on(struct msm_panel_info *pinfo)
+{
+ int cmd_count = 0;
+ char *payload;
+
+ if (!dev) {
+ dprintf(CRITICAL, "SPI has not been initialized\n");
+ return -ENODEV;
+ }
+
+ while (cmd_count < pinfo->spi.num_of_panel_cmds) {
+ if (pinfo->spi.panel_cmds[cmd_count].cmds_post_tg){
+ payload = pinfo->spi.panel_cmds[cmd_count].payload;
+ mdss_spi_write_cmd(payload);
+ if (pinfo->spi.panel_cmds[cmd_count].size > 1)
+ mdss_spi_write_data(payload + 1,
+ pinfo->spi.panel_cmds[cmd_count].size
+ - 1);
+
+ if (pinfo->spi.panel_cmds[cmd_count].wait)
+ mdelay(pinfo->spi.panel_cmds[cmd_count].wait);
+ }
+
+ cmd_count ++;
+ }
+
+ return SUCCESS;
+}