disp: msm: dsi: make PPS delay configurable

This change makes the post PPS command delay a panel property.
By default the value is set to zero if not specified.

Change-Id: I50c86ba0f0cb28ff617435e92e9675e5c35404ca
Signed-off-by: Satya Rama Aditya Pinapala <[email protected]>

msm/dsi/dsi_panel.c

@@ -108,7 +108,7 @@ int dsi_dsc_create_pps_buf_cmd(struct msm_display_dsc_info *dsc, char *buf,
 	*bp++ = 1;
 	*bp++ = 0;
 	*bp++ = 0;
-	*bp++ = 10;
+	*bp++ = dsc->pps_delay_ms;
 	*bp++ = 0;
 	*bp++ = 128;
 
@@ -2625,6 +2625,13 @@ static int dsi_panel_parse_dsc_params(struct dsi_display_mode *mode,
 	}
 	priv_info->dsc.bpc = data;
 
+	rc = utils->read_u32(utils->data, "qcom,mdss-pps-delay-ms", &data);
+	if (rc) {
+		DSI_DEBUG("pps-delay-ms not specified, defaulting to 0\n");
+		priv_info->dsc.pps_delay_ms = 0;
+	}
+	priv_info->dsc.pps_delay_ms = data;
+
 	rc = utils->read_u32(utils->data, "qcom,mdss-dsc-bit-per-pixel",
 			&data);
 	if (rc) {

msm/msm_drv.h

@@ -357,6 +357,7 @@ struct msm_roi_caps {
  * @range_max_qp:            Max QP allowed.
  * @range_bpg_offset:        Bits per group adjustment.
  * @extra_width:             Extra width required in timing calculations.
+ * @pps_delay_ms:            Post PPS command delay in milliseconds.
  */
 struct msm_display_dsc_info {
 	u8 version;
@@ -414,6 +415,7 @@ struct msm_display_dsc_info {
 	char *range_bpg_offset;
 
 	u32 extra_width;
+	u32 pps_delay_ms;
 };
 
 /**