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| author | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2015-01-19 05:23:33 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-01-22 12:34:56 +0100 |
| commit | 97ece830eceb22c015070f154e857f202218de5c (patch) | |
| tree | cb4c021501e09df5e65916dfb2ff5db6a4c23d02 | |
| parent | b8329acf98c42f7578f6897ebc5d509a4317bb0b (diff) | |
| download | u-boot-imx-97ece830eceb22c015070f154e857f202218de5c.zip u-boot-imx-97ece830eceb22c015070f154e857f202218de5c.tar.gz u-boot-imx-97ece830eceb22c015070f154e857f202218de5c.tar.bz2 | |
video: sunxi: Hook up SSD2828 with the sunxi video driver
Convert GPIO names from Kconfig strings into pin numbers for
the 'ssd2828_config' struct. Add SSD2828 initialization between
enabling the parallel LCD interface and turning on the backlight.
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| -rw-r--r-- | board/sunxi/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/video/sunxi_display.c | 38 |
2 files changed, 45 insertions, 0 deletions
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig index 1e9cee7..cea356c 100644 --- a/board/sunxi/Kconfig +++ b/board/sunxi/Kconfig @@ -347,6 +347,13 @@ config VIDEO_LCD_PANEL_LVDS bool "Generic lvds interface LCD panel" select VIDEO_LCD_IF_LVDS +config VIDEO_LCD_PANEL_MIPI_4_LANE_513_MBPS_VIA_SSD2828 + bool "MIPI 4-lane, 513Mbps LCD panel via SSD2828 bridge chip" + select VIDEO_LCD_SSD2828 + select VIDEO_LCD_IF_PARALLEL + ---help--- + 7.85" 768x1024 LCD panels, such as LG LP079X01 or AUO B079XAN01.0 + endchoice diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index b2ac608..0505f3c 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -20,6 +20,7 @@ #include <fdt_support.h> #include <video_fb.h> #include "videomodes.h" +#include "ssd2828.h" DECLARE_GLOBAL_DATA_PTR; @@ -821,6 +822,40 @@ static void sunxi_vga_external_dac_enable(void) } #endif /* CONFIG_VIDEO_VGA_VIA_LCD */ +#ifdef CONFIG_VIDEO_LCD_SSD2828 +static int sunxi_ssd2828_init(const struct ctfb_res_modes *mode) +{ + struct ssd2828_config cfg = { + .csx_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_CS), + .sck_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_SCLK), + .sdi_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_MOSI), + .sdo_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_MISO), + .reset_pin = name_to_gpio(CONFIG_VIDEO_LCD_SSD2828_RESET), + .ssd2828_tx_clk_khz = CONFIG_VIDEO_LCD_SSD2828_TX_CLK * 1000, + .ssd2828_color_depth = 24, +#ifdef CONFIG_VIDEO_LCD_PANEL_MIPI_4_LANE_513_MBPS_VIA_SSD2828 + .mipi_dsi_number_of_data_lanes = 4, + .mipi_dsi_bitrate_per_data_lane_mbps = 513, + .mipi_dsi_delay_after_exit_sleep_mode_ms = 100, + .mipi_dsi_delay_after_set_display_on_ms = 200 +#else +#error MIPI LCD panel needs configuration parameters +#endif + }; + + if (cfg.csx_pin == -1 || cfg.sck_pin == -1 || cfg.sdi_pin == -1) { + printf("SSD2828: SPI pins are not properly configured\n"); + return 1; + } + if (cfg.reset_pin == -1) { + printf("SSD2828: Reset pin is not properly configured\n"); + return 1; + } + + return ssd2828_init(&cfg, mode); +} +#endif /* CONFIG_VIDEO_LCD_SSD2828 */ + static void sunxi_engines_init(void) { sunxi_composer_init(); @@ -853,6 +888,9 @@ static void sunxi_mode_set(const struct ctfb_res_modes *mode, sunxi_lcdc_tcon0_mode_set(mode); sunxi_composer_enable(); sunxi_lcdc_enable(); +#ifdef CONFIG_VIDEO_LCD_SSD2828 + sunxi_ssd2828_init(mode); +#endif sunxi_lcdc_backlight_enable(); break; case sunxi_monitor_vga: |