Check if panel driver has display timings and get those. If panel driver does not pass timing, try to find timing under rgb node for backwards compatibility.
Tested-by: Robert Eckelmann longnoserob@gmail.com # ASUS TF101 T20 Tested-by: Nicolas Chauvet kwizart@gmail.com # Paz00 Tested-by: Andreas Westman Dorcsak hedmoo@yahoo.com # ASUS TF T30 Tested-by: Svyatoslav Ryhel clamor95@gmail.com # LG P895 T30 Signed-off-by: Svyatoslav Ryhel clamor95@gmail.com --- drivers/video/tegra20/tegra-dc.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-)
diff --git a/drivers/video/tegra20/tegra-dc.c b/drivers/video/tegra20/tegra-dc.c index ff67cc8989..91298b7b7f 100644 --- a/drivers/video/tegra20/tegra-dc.c +++ b/drivers/video/tegra20/tegra-dc.c @@ -380,18 +380,6 @@ static int tegra_lcd_of_to_plat(struct udevice *dev) return -EINVAL; }
- ret = fdtdec_decode_display_timing(blob, rgb, 0, &priv->timing); - if (ret) { - debug("%s: Cannot read display timing for '%s' (ret=%d)\n", - __func__, dev->name, ret); - return -EINVAL; - } - timing = &priv->timing; - priv->width = timing->hactive.typ; - priv->height = timing->vactive.typ; - priv->pixel_clock = timing->pixelclock.typ; - priv->log2_bpp = VIDEO_BPP16; - /* * Sadly the panel phandle is in an rgb subnode so we cannot use * uclass_get_device_by_phandle(). @@ -401,6 +389,7 @@ static int tegra_lcd_of_to_plat(struct udevice *dev) debug("%s: Cannot find panel information\n", __func__); return -EINVAL; } + ret = uclass_get_device_by_of_offset(UCLASS_PANEL, panel_node, &priv->panel); if (ret) { @@ -409,6 +398,22 @@ static int tegra_lcd_of_to_plat(struct udevice *dev) return ret; }
+ ret = panel_get_display_timing(priv->panel, &priv->timing); + if (ret) { + ret = fdtdec_decode_display_timing(blob, rgb, 0, &priv->timing); + if (ret) { + debug("%s: Cannot read display timing for '%s' (ret=%d)\n", + __func__, dev->name, ret); + return -EINVAL; + } + } + + timing = &priv->timing; + priv->width = timing->hactive.typ; + priv->height = timing->vactive.typ; + priv->pixel_clock = timing->pixelclock.typ; + priv->log2_bpp = VIDEO_BPP16; + return 0; }