Hi, Yongqiang:
Yongqiang Niu yongqiang.niu@mediatek.com 於 2020年12月12日 週六 下午12:13寫道：
fix gamma size config
I would like you to provide more information. The original code works in mt8173, why do you modify this? The description may be something like this:
According to data sheet, the width is in bits [31, 16] and height is in bits [15, 0]. Even though wrong setting may works in some SoC such as mt8173, but it does not work in mt8192.
Regards, Chun-Kuang.
Fixes: e0a5d3370245 (drm/mediatek: Add GAMMA engine basic function) Signed-off-by: Yongqiang Niu yongqiang.niu@mediatek.com
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index 00d5687..52b6fc7 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -297,7 +297,7 @@ static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w, unsigned int h, unsigned int vrefresh, unsigned int bpc, struct cmdq_pkt *cmdq_pkt) {
mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE);
mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_GAMMA_SIZE); mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt);}
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