msm: mdss: Move double bufferring mode support for dsi to dtsi

Move double bufferring mode support property for dsi controller
to dtsi as it is not supported on 8909.

Change-Id: I2d99c34af7d4b9eef8f4503bad6fcd1480b2bde6
Signed-off-by: Shivaraj Shetty <shivaraj@codeaurora.org>

4 files changed, 9 insertions, 6 deletions

diff --git a/Documentation/devicetree/bindings/fb/mdss-dsi-ctrl.txt b/Documentation/devicetree/bindings/fb/mdss-dsi-ctrl.txt
index 7ad0f2769ba8..d2c6f085c1de 100644
--- a/Documentation/devicetree/bindings/fb/mdss-dsi-ctrl.txt
+++ b/Documentation/devicetree/bindings/fb/mdss-dsi-ctrl.txt
@@ -75,6 +75,7 @@ Optional properties:
 - qcom,mmss-ulp-clamp-ctrl-offset:	Specifies the offset for dsi ulps clamp control register.
 - qcom,mmss-phyreset-ctrl-offset:	Specifies the offset for dsi phy reset control register.
 - qcom,dsi-irq-line:			Boolean specifies if DSI has a different irq line than mdp.
+- qcom,timing-db-mode:			Boolean specifies dsi timing mode registers are supported or not.
 
 Example:
         mdss_dsi0: qcom,mdss_dsi@fd922800 {
@@ -113,6 +114,7 @@ Example:
 		qcom,platform-mode-gpio = <&msmgpio 7 0>;
 		qcom,dsi-panel-bias-vreg;
 		qcom,dsi-irq-line;
+		qcom,timing-db-mode;
 
 		qcom,core-supply-entries {
 			#address-cells = <1>;
diff --git a/drivers/video/fbdev/msm/mdss_dsi.c b/drivers/video/fbdev/msm/mdss_dsi.c
index 9c041b074072..d903e462d318 100644
--- a/drivers/video/fbdev/msm/mdss_dsi.c
+++ b/drivers/video/fbdev/msm/mdss_dsi.c
@@ -1803,6 +1803,9 @@ int dsi_panel_device_register(struct device_node *pan_node,
 		ctrl_pdata->mode_gpio = -EINVAL;
 	}
 
+	ctrl_pdata->timing_db_mode = of_property_read_bool(
+		ctrl_pdev->dev.of_node, "qcom,timing-db-mode");
+
 	if (mdss_dsi_clk_init(ctrl_pdev, ctrl_pdata)) {
 		pr_err("%s: unable to initialize Dsi ctrl clks\n", __func__);
 		return -EPERM;
diff --git a/drivers/video/fbdev/msm/mdss_dsi.h b/drivers/video/fbdev/msm/mdss_dsi.h
index cac9371dff0b..a420bdab8a9c 100644
--- a/drivers/video/fbdev/msm/mdss_dsi.h
+++ b/drivers/video/fbdev/msm/mdss_dsi.h
@@ -374,6 +374,7 @@ struct mdss_dsi_ctrl_pdata {
 	bool ulps;
 	bool core_power;
 	bool mmss_clamp;
+	bool timing_db_mode;
 
 	struct dsi_buf tx_buf;
 	struct dsi_buf rx_buf;
diff --git a/drivers/video/fbdev/msm/mdss_dsi_host.c b/drivers/video/fbdev/msm/mdss_dsi_host.c
index d411cd776f88..ba210d2594b4 100644
--- a/drivers/video/fbdev/msm/mdss_dsi_host.c
+++ b/drivers/video/fbdev/msm/mdss_dsi_host.c
@@ -925,7 +925,7 @@ static void mdss_dsi_mode_setup(struct mdss_panel_data *pdata)
 	u32 hbp, hfp, vbp, vfp, hspw, vspw, width, height;
 	u32 ystride, bpp, data, dst_bpp;
 	u32 dummy_xres = 0, dummy_yres = 0;
-	u32 hsync_period, vsync_period, ctrl_rev;
+	u32 hsync_period, vsync_period;
 
 	ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
 				panel_data);
@@ -958,9 +958,7 @@ static void mdss_dsi_mode_setup(struct mdss_panel_data *pdata)
 
 	mipi = &pdata->panel_info.mipi;
 	if (pdata->panel_info.type == MIPI_VIDEO_PANEL) {
-		ctrl_rev = MIPI_INP(ctrl_pdata->ctrl_base);
-		/* Enable DSI TIMING register double buffering for 8916/8939 */
-		if (ctrl_rev == MDSS_DSI_HW_REV_103_1)
+		if (ctrl_pdata->timing_db_mode)
 			MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x1e8, 0x1);
 		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x24,
 			((hspw + hbp + width + dummy_xres) << 16 |
@@ -975,8 +973,7 @@ static void mdss_dsi_mode_setup(struct mdss_panel_data *pdata)
 		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x30, (hspw << 16));
 		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x34, 0);
 		MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x38, (vspw << 16));
-		/* Flush DSI TIMING registers for 8916/8939 */
-		if (ctrl_rev == MDSS_DSI_HW_REV_103_1)
+		if (ctrl_pdata->timing_db_mode)
 			MIPI_OUTP((ctrl_pdata->ctrl_base) + 0x1e4, 0x1);
 	} else {		/* command mode */
 		if (mipi->dst_format == DSI_CMD_DST_FORMAT_RGB888)