MTK驱动-----添加lcm液晶驱动

MTK添加5寸mipi屏

1.kernel-4.4/arch/arm/configs/k39tv1_bsp_1g_debug_defconfig

CONFIG_CUSTOM_KERNEL_LCM="st7703_hd720_dsi_vdo_tianzhengda"

2.kernel-4.4/arch/arm/configs/k39tv1_bsp_1g_defconfig

CONFIG_CUSTOM_KERNEL_LCM="st7703_hd720_dsi_vdo_tianzhengda"

3.kernel-4.4/drivers/misc/mediatek/lcm/mt65xx_lcm_list.c

#if defined(ST7703_HD720_DSI_VDO_TIANZHENGDA) &st7703_hd720_dsi_vdo_tianzhengda_lcm_drv, #endif #if defined(ST7703_HD720_DSI_VDO_TIANZHENGDA) “st7703_hd720_dsi_vdo_tianzhengda”, #endif

4.kernel-4.4/drivers/misc/mediatek/lcm/mt65xx_lcm_list.h

extern LCM_DRIVER st7703_hd720_dsi_vdo_tianzhengda_lcm_drv;

5.在kernel-4.4/drivers/misc/mediatek/lcm目录下添加驱动文件

6.vendor/mediatek/proprietary/bootable/bootloader/lk/dev/lcm/mt65xx_lcm_list.c

extern LCM_DRIVER st7703_hd720_dsi_vdo_tianzhengda_lcm_drv; #if defined(ST7703_HD720_DSI_VDO_TIANZHENGDA) &st7703_hd720_dsi_vdo_tianzhengda_lcm_drv, #endif #if defined(ST7703_HD720_DSI_VDO_TIANZHENGDA) “st7703_hd720_dsi_vdo_tianzhengda”, #endif

7.在vendor/mediatek/proprietary/bootable/bootloader/lk/dev/lcm添加驱动文件

8.vendor/mediatek/proprietary/bootable/bootloader/lk/project/k39tv1_bsp_1g.mk

CUSTOM_LK_LCM="st7703_hd720_dsi_vdo_tianzhengda"

9.在device/mediateksample/k39tv1_bsp_1g/ProjectConfig.mk修改分辨率

LCM_HEIGHT = 1280；

LCM_WIDTH = 720；

方向：MTK_LCM_PHYSICAL_ROTATION = 0

logo样式：BOOT_LOGO = wsvga

10.device/mediateksample/k39tv1_bsp_1g/system.prop

添加屏幕像素：ro.sf.lcd_density=320