From: Huang Jiachai <hjc@rock-chips.com>
Date: Thu, 8 Sep 2016 08:31:10 +0000 (+0800)
Subject: video: rockchip: rk fb: add disp mode for VR
X-Git-Tag: firefly_0821_release~1574
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=firefly-linux-kernel-4.4.55.git;a=commitdiff_plain;h=e7f31e2b52e79b259095ad28196c96a3d94eaf39

video: rockchip: rk fb: add disp mode for VR

DEFAULT_MODE: default mode
ONE_VOP_DUAL_MIPI_HOR_SCAN: one vop to dual mipi screen hor scan
ONE_VOP_DUAL_MIPI_VER_SCAN: one vop to dual mipi screen ver scan
TWO_VOP_DUAL_MIPI: two vop to dual mipi screen

Change-Id: I48a96369059afd5615ebf41b4b6178d7206c4f72
Signed-off-by: Huang Jiachai <hjc@rock-chips.com>
---

diff --git a/drivers/video/rockchip/rkfb_sysfs.c b/drivers/video/rockchip/rkfb_sysfs.c
index e66f0ddfc1ef..d40d98a1fa85 100644
--- a/drivers/video/rockchip/rkfb_sysfs.c
+++ b/drivers/video/rockchip/rkfb_sysfs.c
@@ -1194,6 +1194,17 @@ static ssize_t show_lcdc_id(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->id);
 }
 
+static ssize_t show_dsp_mode(struct device *dev,
+			    struct device_attribute *attr,
+			    char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct rk_fb_par *fb_par = (struct rk_fb_par *)fbi->par;
+	struct rk_lcdc_driver *dev_drv = fb_par->lcdc_drv;
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", dev_drv->dsp_mode);
+}
+
 static ssize_t show_win_property(struct device *dev,
 			    struct device_attribute *attr,
 			    char *buf)
@@ -1250,6 +1261,7 @@ static struct device_attribute rkfb_attrs[] = {
 	__ATTR(lcdcid, S_IRUGO, show_lcdc_id, NULL),
 	__ATTR(win_property, S_IRUGO, show_win_property, NULL),
 	__ATTR(car_reverse, S_IWUSR, NULL, set_car_reverse),
+	__ATTR(dsp_mode, S_IRUGO, show_dsp_mode, NULL),
 };
 
 int rkfb_create_sysfs(struct fb_info *fbi)
diff --git a/include/dt-bindings/display/rk_fb.h b/include/dt-bindings/display/rk_fb.h
index 0e7e80531079..36a82cfc54bf 100755
--- a/include/dt-bindings/display/rk_fb.h
+++ b/include/dt-bindings/display/rk_fb.h
@@ -13,6 +13,12 @@
 #define ONE_DUAL	1
 #define DUAL		2
 #define DUAL_LCD	3
+
+#define DEFAULT_MODE			0
+#define ONE_VOP_DUAL_MIPI_HOR_SCAN	1
+#define ONE_VOP_DUAL_MIPI_VER_SCAN	2
+#define TWO_VOP_TWO_SCREEN		3
+
 /********************************************************************
 **          display output interface supported by rockchip	   **
 ********************************************************************/
diff --git a/include/linux/rk_fb.h b/include/linux/rk_fb.h
index 6fbcae14ea94..902b978d81cd 100755
--- a/include/linux/rk_fb.h
+++ b/include/linux/rk_fb.h
@@ -701,6 +701,7 @@ struct rk_lcdc_driver {
 	char mmu_dts_name[40];
 	struct device *mmu_dev;
 	int iommu_enabled;
+	int dsp_mode;
 
 	struct rk_fb_reg_area_data reg_area_data;
 	/*