msm_fb: display: Add boot param LCDC/MIPI panel detection support
Add boot param LCDC/MIPI panel detection support for automatically
loading selected panels through fastboot command
Signed-off-by: Ravishangar Kalyanam <rkalya@codeaurora.org>
diff --git a/drivers/video/msm/msm_fb.c b/drivers/video/msm/msm_fb.c
index 542eea4..bde0573 100644
--- a/drivers/video/msm/msm_fb.c
+++ b/drivers/video/msm/msm_fb.c
@@ -188,25 +188,42 @@
};
#endif
+#define PANEL_NAME_MAX_LEN 30
static struct msm_fb_platform_data *msm_fb_pdata;
-static char panel_name[128];
-module_param_string(panel_name, panel_name, sizeof(panel_name) , 0);
+static char prim_panel_name[PANEL_NAME_MAX_LEN];
+static char ext_panel_name[PANEL_NAME_MAX_LEN];
+module_param_string(prim_display, prim_panel_name, sizeof(prim_panel_name) , 0);
+module_param_string(ext_display, ext_panel_name, sizeof(ext_panel_name) , 0);
int msm_fb_detect_client(const char *name)
{
- int ret = -EPERM;
+ int ret = 0;
+ u32 len;
#ifdef CONFIG_FB_MSM_MDDI_AUTO_DETECT
u32 id;
#endif
-
- MSM_FB_DEBUG("\n name = %s, panel_name = %s", name, panel_name);
- if (strlen(panel_name)) {
- if (!strcmp((char *)panel_name, name))
+ len = strnlen(name, PANEL_NAME_MAX_LEN);
+ if (strnlen(prim_panel_name, PANEL_NAME_MAX_LEN)) {
+ MSM_FB_DEBUG("\n name = %s, prim_display = %s",
+ name, prim_panel_name);
+ if (!strncmp((char *)prim_panel_name, name, len))
return 0;
else
- return -EPERM;
+ ret = -EPERM;
+ }
+ if (strnlen(ext_panel_name, PANEL_NAME_MAX_LEN)) {
+ MSM_FB_DEBUG("\n name = %s, ext_display = %s",
+ name, ext_panel_name);
+ if (!strncmp((char *)ext_panel_name, name, len))
+ return 0;
+ else
+ ret = -EPERM;
}
+ if (ret)
+ return ret;
+
+ ret = -EPERM;
if (msm_fb_pdata && msm_fb_pdata->detect_client) {
ret = msm_fb_pdata->detect_client(name);