lvds:support rk3028a_lvds,config:"RK3028a_LVDS"

diff --git a/drivers/video/rockchip/transmitter/Kconfig b/drivers/video/rockchip/transmitter/Kconfig
index 502ffcbe4c484237b0525eb06ca56c68cb23a71a..fffe1a9368fd31ab11df12e64c65f630596e71d5 100644 (file)
--- a/drivers/video/rockchip/transmitter/Kconfig
+++ b/drivers/video/rockchip/transmitter/Kconfig
@@ -7,6 +7,11 @@ config RK2928_LVDS
        bool "RK2928/RK2926 lvds transmitter support"
         depends on ARCH_RK2928 && RK_TRSM
 
+config RK3028a_LVDS
+       bool "KK3028a lvds transmitter support"
+        depends on RK_TRSM
+       
+
 config RK610_LVDS
        bool "RK610(Jetta) lvds transmitter support"
        depends on MFD_RK610 && RK_TRSM 

diff --git a/drivers/video/rockchip/transmitter/Makefile b/drivers/video/rockchip/transmitter/Makefile
index 010fc6a0d0afcfc1d3191b8a06483a91eef25f44..3ef07caa970761ef816ef548c9d1a79a8ba60564 100644 (file)
--- a/drivers/video/rockchip/transmitter/Makefile
+++ b/drivers/video/rockchip/transmitter/Makefile
@@ -2,6 +2,7 @@
 # Makefile for display transmitter like lvds edp mipi
 #
 obj-$(CONFIG_RK2928_LVDS)          += rk2928_lvds.o
+obj-$(CONFIG_RK3028a_LVDS)          += rk3028a_lvds.o
 obj-$(CONFIG_RK610_LVDS)         += rk610_lcd.o
 obj-$(CONFIG_RK616_LVDS)          += rk616_lvds.o
 obj-$(CONFIG_DP_ANX6345)          += dp_anx6345.o
@@ -9,4 +10,5 @@ obj-$(CONFIG_DP501)          += dp501.o
 obj-$(CONFIG_MIPI_DSI)                         += mipi_dsi.o 
 obj-$(CONFIG_RK616_MIPI_DSI)           += rk616_mipi_dsi.o
 obj-$(CONFIG_TC358768_RGB2MIPI)     += tc358768.o
-obj-$(CONFIG_SSD2828_RGB2MIPI)      += ssd2828.o
\ No newline at end of file
+obj-$(CONFIG_SSD2828_RGB2MIPI)      += ssd2828.o
+

diff --git a/drivers/video/rockchip/transmitter/rk3028a_lvds.c b/drivers/video/rockchip/transmitter/rk3028a_lvds.c
new file mode 100644 (file)
index 0000000..cc8769c
--- /dev/null
+++ b/drivers/video/rockchip/transmitter/rk3028a_lvds.c
@@ -0,0 +1,175 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/i2c.h>
+#include <linux/rk_fb.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+
+#include <mach/board.h>
+#include <mach/hardware.h>
+#include <mach/io.h>
+#include <mach/gpio.h>
+#include <mach/iomux.h>
+
+#include "rk3028a_lvds.h"
+
+#define lvds_readl(offset)     readl_relaxed(RK30_GRF_BASE + offset)
+#define lvds_writel(v,offset)  do{ writel_relaxed(v, RK30_GRF_BASE + offset);dsb();} while (0)
+
+static void rk3028a_output_lvds(rk_screen *screen)
+{
+       u32 val =0;
+       
+       /*
+               Choise LVDS transmitter source from LCDC or EBC
+       */
+#if defined(CONFIG_LCDC0_RK3188)       
+       val |= LVDS_DATA_SEL;   
+#else
+       val &= ~(LVDS_DATA_SEL);
+#endif
+       /* 
+               When LVDS output format   is  8bit mode format-1/8bit mode format-2,  configure 
+               grf_lvds_con0 in 24-bit color mode.
+               When LVDS output format is 8bit mode format-3/6bit mode, configure 
+               grf_lvds_con0 in 18-bit color mode. 
+       */
+       if(screen->lvds_format == 0 || screen->lvds_format == 1)
+               val |= LVDS_CBS_COL_SEL(2);
+       else
+               val |= LVDS_CBS_COL_SEL(1);
+       
+                
+       val &= ~(LVDS_CBG_PWR_EN | LVDS_OUTPUT_EN | LVDS_SWING_SEL);
+       val |= (LVDS_OUTPUT_FORMAT(screen->lvds_format) | LVDS_PLL_PWR_EN | LVDS_SWING_SEL);
+
+       val |= (LVDS_DATA_SEL | LVDS_OUTPUT_FORMAT(3) | LVDS_CBG_PWR_EN | LVDS_PLL_PWR_EN |
+                       LVDS_OUTPUT_EN | LVDS_CBS_COL_SEL(3) | LVDS_SWING_SEL) << 16;   
+
+       lvds_writel(val,CRU_LVDS_CON0);
+       
+       return;
+}
+
+static void rk3028a_output_lvttl(rk_screen *screen)
+{
+       u32 val =0;
+
+       /*
+               Choise LVDS transmitter source from LCDC or EBC
+       */
+#if defined(CONFIG_LCDC0_RK3188)       
+       val |= LVDS_DATA_SEL;   
+#else
+       val &= ~(LVDS_DATA_SEL);
+#endif
+       /* 
+               When LVDS output format   is  8bit mode format-1/8bit mode format-2,  configure 
+               grf_lvds_con0 in 24-bit color mode.
+               When LVDS output format is 8bit mode format-3/6bit mode, configure 
+               grf_lvds_con0 in 18-bit color mode. 
+       */
+       if(screen->lvds_format == 0 || screen->lvds_format == 1)
+               val |= LVDS_CBS_COL_SEL(2);
+       else
+               val |= LVDS_CBS_COL_SEL(1);
+               
+       val &= ~(LVDS_DATA_SEL | LVDS_CBG_PWR_EN | LVDS_SWING_SEL);
+       val |= (LVDS_OUTPUT_FORMAT(screen->lvds_format) | LVDS_PLL_PWR_EN | LVDS_OUTPUT_EN | LVDS_CBS_COL_SEL(3));
+
+       val |= ((LVDS_DATA_SEL | LVDS_CBG_PWR_EN | LVDS_SWING_SEL | LVDS_OUTPUT_FORMAT(screen->lvds_format) | 
+               LVDS_PLL_PWR_EN | LVDS_OUTPUT_EN | LVDS_CBS_COL_SEL(3)) << 16);
+
+       lvds_writel(val,CRU_LVDS_CON0);
+
+       return;                 
+}
+
+static void rk3028a_output_disable(void)
+{      
+       u32 val =0;
+       
+       val |= ((LVDS_CBG_PWR_EN | LVDS_PLL_PWR_EN | LVDS_CBS_COL_SEL(3)) << 16);
+       val &= ~(LVDS_CBG_PWR_EN);
+       val |= (LVDS_PLL_PWR_EN | LVDS_CBS_COL_SEL(3));                 
+       
+       lvds_writel(val,CRU_LVDS_CON0);
+}
+
+
+static int rk3028a_lvds_set_param(rk_screen *screen,bool enable)
+{
+       if(OUT_ENABLE == enable){
+               switch(screen->type){
+                       case SCREEN_LVDS:
+                               rk3028a_output_lvds(screen);                                       
+                               break;
+                       case SCREEN_RGB:
+                               rk3028a_output_lvttl(screen);
+                               break;
+                       default:
+                               printk("%s>>>>LVDS not support this screen type %d,power down LVDS\n",__func__,screen->type);
+                               rk3028a_output_disable();
+                               break;
+               }
+       }else{
+               rk3028a_output_disable();
+       }
+       return 0;
+}
+
+
+static int rk3028a_lvds_probe(struct platform_device *pdev)
+{
+       rk_screen *screen = NULL;
+
+       screen = rk_fb_get_prmry_screen();
+       if(!screen)
+       {
+               dev_err(&pdev->dev,"the fb prmry screen is null!\n");
+               return -ENODEV;
+       }
+       
+       rk3028a_lvds_set_param(screen,OUT_ENABLE);
+
+       return 0;
+       
+}
+
+static int rk3028a_lvds_remove(struct platform_device *pdev)
+{      
+       return 0;
+}
+
+static void rk3028a_lvds_shutdown(struct platform_device *pdev)
+{
+       return;
+}
+
+static struct platform_driver rk3028a_lvds_driver = {
+       .driver         = {
+               .name   = "rk3028a-lvds",
+               .owner  = THIS_MODULE,
+       },
+       .probe          = rk3028a_lvds_probe,
+       .remove         = rk3028a_lvds_remove,
+       .shutdown       = rk3028a_lvds_shutdown,
+};
+
+static int __init rk3028a_lvds_init(void)
+{
+       return platform_driver_register(&rk3028a_lvds_driver);
+}
+fs_initcall(rk3028a_lvds_init);
+static void __exit rk3028a_lvds_exit(void)
+{
+       platform_driver_unregister(&rk3028a_lvds_driver);
+}
+module_exit(rk3028a_lvds_exit);
+
+
+

diff --git a/drivers/video/rockchip/transmitter/rk3028a_lvds.h b/drivers/video/rockchip/transmitter/rk3028a_lvds.h
new file mode 100644 (file)
index 0000000..0de11a0
--- /dev/null
+++ b/drivers/video/rockchip/transmitter/rk3028a_lvds.h
@@ -0,0 +1,19 @@
+#include<linux/rk_screen.h>
+
+
+#define CRU_LVDS_CON0          0x0150
+#define LVDS_SWING_SEL                 (1<<12)
+#define LVDS_CBS_COL_SEL(x)    ((x&3)<<10)
+#define LVDS_OUTPUT_EN         (1<<9)
+#define LVDS_PLL_PWR_EN                (1<<8)
+#define LVDS_CBG_PWR_EN                (1<<7)
+#define LVDS_CH_LOAD                   (1<<4)
+#define LVDS_INPUT_FORMAT      (1<<3)
+#define LVDS_OUTPUT_FORMAT(x)  (((x)&3)<<1)
+#define LVDS_DATA_SEL          (1<<0)
+
+enum{
+       OUT_DISABLE=0,
+       OUT_ENABLE,
+};
+