diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_ethdr.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_ethdr.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c index 6a5d0c345a..bf5826b7e7 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -14,8 +14,8 @@ #include <linux/soc/mediatek/mtk-cmdq.h> #include <linux/soc/mediatek/mtk-mmsys.h> -#include "mtk_drm_crtc.h" -#include "mtk_drm_ddp_comp.h" +#include "mtk_crtc.h" +#include "mtk_ddp_comp.h" #include "mtk_drm_drv.h" #include "mtk_ethdr.h" @@ -50,7 +50,6 @@ #define MIXER_INX_MODE_BYPASS 0 #define MIXER_INX_MODE_EVEN_EXTEND 1 -#define DEFAULT_9BIT_ALPHA 0x100 #define MIXER_ALPHA_AEN BIT(8) #define MIXER_ALPHA 0xff #define ETHDR_CLK_NUM 13 @@ -154,13 +153,19 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, unsigned int offset = (pending->x & 1) << 31 | pending->y << 16 | pending->x; unsigned int align_width = ALIGN_DOWN(pending->width, 2); unsigned int alpha_con = 0; + bool replace_src_a = false; dev_dbg(dev, "%s+ idx:%d", __func__, idx); if (idx >= 4) return; - if (!pending->enable) { + if (!pending->enable || !pending->width || !pending->height) { + /* + * instead of disabling layer with MIX_SRC_CON directly + * set the size to 0 to avoid screen shift due to mixer + * mode switch (hardware behavior) + */ mtk_ddp_write(cmdq_pkt, 0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZE(idx)); return; } @@ -168,8 +173,16 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, if (state->base.fb && state->base.fb->format->has_alpha) alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; - mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, alpha_con ? false : true, - DEFAULT_9BIT_ALPHA, + if (state->base.fb && !state->base.fb->format->has_alpha) { + /* + * Mixer doesn't support CONST_BLD mode, + * use a trick to make the output equivalent + */ + replace_src_a = true; + } + + mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, replace_src_a, + MIXER_ALPHA, pending->x & 1 ? MIXER_INX_MODE_EVEN_EXTEND : MIXER_INX_MODE_BYPASS, align_width / 2 - 1, cmdq_pkt); @@ -363,7 +376,6 @@ struct platform_driver mtk_ethdr_driver = { .remove_new = mtk_ethdr_remove, .driver = { .name = "mediatek-disp-ethdr", - .owner = THIS_MODULE, .of_match_table = mtk_ethdr_driver_dt_match, }, }; |