Currently the LCD code only supports reading panel timings from the device tree. Change that so it can use a real panel.
Signed-off-by: John Watts contact@jookia.org --- I've been working on a panel driver port from Linux for the T113 and found I need this code to have the panel boot correctly. --- drivers/video/sunxi/sunxi_lcd.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/video/sunxi/sunxi_lcd.c b/drivers/video/sunxi/sunxi_lcd.c index 7a01cc343c..605ea90de1 100644 --- a/drivers/video/sunxi/sunxi_lcd.c +++ b/drivers/video/sunxi/sunxi_lcd.c @@ -8,6 +8,7 @@ #include <common.h> #include <display.h> #include <log.h> +#include <panel.h> #include <video_bridge.h> #include <backlight.h> #include <dm.h> @@ -45,6 +46,7 @@ static int sunxi_lcd_enable(struct udevice *dev, int bpp, (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; struct sunxi_lcd_priv *priv = dev_get_priv(dev); struct udevice *backlight; + struct udevice *panel; int clk_div, clk_double, ret;
/* Reset off */ @@ -60,6 +62,12 @@ static int sunxi_lcd_enable(struct udevice *dev, int bpp, priv->panel_bpp, CONFIG_VIDEO_LCD_DCLK_PHASE); lcdc_enable(lcdc, priv->panel_bpp);
+ ret = uclass_get_device(UCLASS_PANEL, 0, &panel); + if (ret == 0) { + if (panel_enable_backlight(panel) == 0) + return 0; + } + ret = uclass_get_device(UCLASS_PANEL_BACKLIGHT, 0, &backlight); if (!ret) backlight_enable(backlight); @@ -116,6 +124,11 @@ static int sunxi_lcd_probe(struct udevice *dev) return ret; }
+ if (panel_get_display_timing(cdev, &priv->timing) == 0) { + priv->panel_bpp = 32; + return 0; + } + if (fdtdec_decode_display_timing(gd->fdt_blob, dev_of_offset(cdev), 0, &priv->timing)) { debug("%s: Failed to decode display timing\n", __func__);
--- base-commit: c0ea27bccfb7d2d37fd36806ac2a2f7389099420 change-id: 20240601-sunxi_lcd-d39a4fb81c94
Best regards,