The MSI Primo81 tablet has B079XAN01/LP079X01 7.85" 768x1024 IPS MIPI display, connected to the parallel LCD interface via SSD2828 bridge chip. The panel has 18-bit color depth and needs dithering, in spite of having RGB data delivered from A31s to SSD2828 using 24-bit arrangement.
Signed-off-by: Siarhei Siamashka siarhei.siamashka@gmail.com --- Changes in v2: - Set CONFIG_VIDEO_LCD_SSD2828_TX_CLK option to 27MHz instead of relying on the hardcoded value in C sources.
configs/MSI_Primo81_defconfig | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/configs/MSI_Primo81_defconfig b/configs/MSI_Primo81_defconfig index b4b0f6d..5fc0289 100644 --- a/configs/MSI_Primo81_defconfig +++ b/configs/MSI_Primo81_defconfig @@ -1,6 +1,16 @@ CONFIG_SPL=y CONFIG_SYS_EXTRA_OPTIONS="" CONFIG_FDTFILE="sun6i-a31s-primo81.dtb" +CONFIG_VIDEO_LCD_MODE="x:768,y:1024,depth:18,pclk_khz:66000,le:56,ri:60,up:30,lo:36,hs:64,vs:50,sync:3,vmode:0" +CONFIG_VIDEO_LCD_PANEL_MIPI_4_LANE_513_MBPS_VIA_SSD2828=y +CONFIG_VIDEO_LCD_SSD2828_TX_CLK=27 +CONFIG_VIDEO_LCD_SSD2828_RESET="PA26" +CONFIG_VIDEO_LCD_SPI_CS="PH9" +CONFIG_VIDEO_LCD_SPI_SCLK="PH10" +CONFIG_VIDEO_LCD_SPI_MOSI="PH11" +CONFIG_VIDEO_LCD_SPI_MISO="PH12" +CONFIG_VIDEO_LCD_BL_EN="PA25" +CONFIG_VIDEO_LCD_BL_PWM="PH13" CONFIG_USB_KEYBOARD=n +S:CONFIG_ARM=y +S:CONFIG_ARCH_SUNXI=y