On 20/07/2023 13:54, AngeloGioacchino Del Regno wrote:
Il 20/07/23 12:14, Alexandre Mergnat ha scritto:
On 20/07/2023 10:26, Shuijing Li wrote:
Due to the difference of HW, different dividers need to be set.
Signed-off-by: Shuijing Li <shuijing.li@xxxxxxxxxxxx>
Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx>
---
Changes in v3:
Separate these two things into two different patches.
per suggestion from the previous thread:
https://lore.kernel.org/lkml/e2ad22bcba31797f38a12a488d4246a01bf0cb2e.camel@xxxxxxxxxxxx/
Changes in v2:
- change the variables' name to be more descriptive
- add a comment that describes the function of
mtk_dp_audio_sample_arrange
- reduce indentation by doing the inverse check
- add a definition of some bits
- add support for mediatek, mt8188-edp-tx
per suggestion from the previous thread:
https://lore.kernel.org/lkml/ac0fcec9-a2fe-06cc-c727-189ef7babe9c@xxxxxxxxxxxxx/
---
drivers/gpu/drm/mediatek/mtk_dp.c | 7 ++++++-
drivers/gpu/drm/mediatek/mtk_dp_reg.h | 1 +
2 files changed, 7 insertions(+), 1 deletion(-)
...
b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
index f38d6ff12afe..6d7f0405867e 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp_reg.h
+++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
@@ -162,6 +162,7 @@
#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_2 (1 << 8)
#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_4 (2 << 8)
#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_8 (3 << 8)
+#define MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_2 (4 << 8)
IMO, it's a bit weird to have SoC specific define in the generic header.
Are you sure this bit is only available for MT8188 ?
Eh, the P0_DIV2 bit is 5<<8 for MT8195, while for 8188 it's 4<<8,
clearly :-)
Ok then, to avoid this kind of issue for other SoCs in the future, is
that make sense for you to do a SoC specific header file beside the
generic one?
#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_2 (5 << 8)
#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_4 (6 << 8)
#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_8 (7 << 8)
Reviewed-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx>
--
Regards,
Alexandre
