From: zwl <zwl@rockchips.com>
Date: Tue, 1 Jul 2014 02:32:18 +0000 (+0800)
Subject: rk fb: add set screen status for ddr change
X-Git-Tag: firefly_0821_release~5016
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=373657e263b53c1210e15d7eb63f7d70165829bd;p=firefly-linux-kernel-4.4.55.git

rk fb: add set screen status for ddr change
---

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 3c1b6c917ca9..2fbb3104e64b 100755
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -569,6 +569,36 @@ u64 rk_fb_get_prmry_screen_framedone_t(void)
 	return dev_drv->frame_time.framedone_t;
 }
 
+/*
+ * set prmry screen status
+ */
+int rk_fb_set_prmry_screen_status(int status)
+{
+	struct rk_lcdc_driver *dev_drv = rk_get_prmry_lcdc_drv();
+	struct rk_screen *screen = dev_drv->cur_screen;
+
+	switch (status) {
+	case SCREEN_PREPARE_DDR_CHANGE:
+		if (screen->type == SCREEN_MIPI
+			|| screen->type == SCREEN_DUAL_MIPI) {
+			if (dev_drv->trsm_ops->dsp_pwr_off)
+				dev_drv->trsm_ops->dsp_pwr_off();
+		}
+		break;
+	case SCREEN_UNPREPARE_DDR_CHANGE:
+		if (screen->type == SCREEN_MIPI
+			|| screen->type == SCREEN_DUAL_MIPI) {
+			if (dev_drv->trsm_ops->dsp_pwr_on)
+				dev_drv->trsm_ops->dsp_pwr_on();
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 #if 0
 static struct rk_lcdc_driver *rk_get_extend_lcdc_drv(void)
 {
diff --git a/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c b/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c
index 1b654a4eb5c4..37434edbd7ce 100755
--- a/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c
+++ b/drivers/video/rockchip/transmitter/rk32_mipi_dsi.c
@@ -101,6 +101,8 @@ static int rk32_mipi_dsi_enable_hs_clk(void *arg, u32 enable);
 static int rk32_mipi_dsi_enable_video_mode(void *arg, u32 enable);
 static int rk32_mipi_dsi_enable_command_mode(void *arg, u32 enable);
 static int rk32_mipi_dsi_is_enable(void *arg, u32 enable);
+static int rk32_mipi_power_down_DDR();
+static int rk32_mipi_power_up_DDR();
 int rk_mipi_screen_standby(u8 enable);
 
 #ifdef CONFIG_RK_3288_DSI_UBOOT
@@ -1377,6 +1379,8 @@ static struct rk_fb_trsm_ops trsm_dsi_ops =
 {
 	.enable = rk32_dsi_enable,
 	.disable = rk32_dsi_disable,
+	.dsp_pwr_on = rk32_mipi_power_up_DDR,
+	.dsp_pwr_off = rk32_mipi_power_down_DDR,
 };
 #endif
 static void rk32_init_phy_mode(int lcdc_id)
@@ -1557,15 +1561,15 @@ int rk32_mipi_enable(vidinfo_t *vid)
 }
 #endif
 #ifdef CONFIG_MIPI_DSI_LINUX
-int rk32_mipi_power_down_DDR(void)
+static int rk32_mipi_power_down_DDR(void)
 {	
 	dsi_is_enable(0, 0);	
 	if (rk_mipi_get_dsi_num() ==2)	    
 		dsi_is_enable(1, 0);  		
 	return 0;   
 }
-EXPORT_SYMBOL(rk32_mipi_power_down_DDR);
-int rk32_mipi_power_up_DDR(void)
+
+static int rk32_mipi_power_up_DDR(void)
 {	
 	dsi_is_enable(0, 0);	
 	if (rk_mipi_get_dsi_num() ==2)	    
@@ -1577,7 +1581,6 @@ int rk32_mipi_power_up_DDR(void)
 		dsi_is_enable(1, 1);	
 	return 0;
 }
-EXPORT_SYMBOL(rk32_mipi_power_up_DDR);
 
 static int rk32_mipi_dsi_probe(struct platform_device *pdev)
 {
diff --git a/include/linux/rk_fb.h b/include/linux/rk_fb.h
index 3bf63af3b887..37da53946f80 100755
--- a/include/linux/rk_fb.h
+++ b/include/linux/rk_fb.h
@@ -112,6 +112,7 @@ extern int rk_fb_poll_prmry_screen_vblank(void);
 extern u32 rk_fb_get_prmry_screen_ft(void);
 extern u32 rk_fb_get_prmry_screen_vbt(void);
 extern u64 rk_fb_get_prmry_screen_framedone_t(void);
+extern int rk_fb_set_prmry_screen_status(int status);
 extern bool rk_fb_poll_wait_frame_complete(void);
 
 /********************************************************************
@@ -242,6 +243,10 @@ typedef enum {
 	H_COS       	= 0x1
 } bcsh_hue_mode;
 
+typedef enum {
+	SCREEN_PREPARE_DDR_CHANGE = 0x0,
+	SCREEN_UNPREPARE_DDR_CHANGE,
+} screen_status;
 
 struct rk_fb_rgb {
 	struct fb_bitfield red;
@@ -385,6 +390,8 @@ struct rk_lcdc_driver;
 struct rk_fb_trsm_ops {
 	int (*enable)(void);
 	int (*disable)(void);
+	int (*dsp_pwr_on) (void);
+	int (*dsp_pwr_off) (void);
 };
 
 struct rk_lcdc_drv_ops {