Hi Frank, On Tue, 2019-04-16 at 16:58 +0200, Frank Wunderlich wrote:
From: Ryder Lee ryder.lee@mediatek.com
without this patch there is purple stretched font on fbconsole
source: http://forum.banana-pi.org/t/kernel-4-19-rc1-for-testers/6618/52
Signed-off-by: Ryder Lee ryder.lee@mediatek.com Tested-by: Frank Wunderlich frank-w@public-files.de
drivers/gpu/drm/mediatek/mtk_dpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 5d333138f913..c171b01f77e0 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -610,7 +610,7 @@ static int mtk_dpi_bind(struct device *dev, struct device *master, void *data) drm_encoder_helper_add(&dpi->encoder, &mtk_dpi_encoder_helper_funcs);
/* Currently DPI0 is fixed to be driven by OVL1 */
- dpi->encoder.possible_crtcs = BIT(1);
- dpi->encoder.possible_crtcs = BIT(0)|BIT(1);
This patch is not a good solution.
The solution should find the components in the arrays to determine the correct crtcs, not just set all available bits. You see the problem because the hardware connections(BIT0) is not the same as driver reports(BIT1 changed to BIT0|BIT1, but BIT1 is not supported).
Regards, yt.shen
ret = drm_bridge_attach(&dpi->encoder, dpi->bridge, NULL); if (ret) { -- 2.17.1
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