From f92ab7ddb204e0e28edf31c8d11a63bccd618cea Mon Sep 17 00:00:00 2001
From: Shuijing Li <shuijing.li@mediatek.com>
Date: Tue, 22 Aug 2023 10:41:53 +0800
Subject: drm/mediatek: dp: Add the audio packet flag to mtk_dp_data struct
Git-commit: 2d503773483edb1c0ffc24ad47eef2b60e8c340a
Patch-mainline: v6.7-rc1
References: jsc#PED-3527 jsc#PED-5475 jsc#PED-6068 jsc#PED-6070 jsc#PED-6116 jsc#PED-6120 jsc#PED-5065 jsc#PED-5477 jsc#PED-5511 jsc#PED-6041 jsc#PED-6069 jsc#PED-6071
The audio packet arrangement function is to only arrange audio
packets into the Hblanking area. In order to align with the HW
default setting of mt8195, this function needs to be turned off.
Signed-off-by: Shuijing Li <shuijing.li@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20230822024155.26670-3-shuijing.li@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/mediatek/mtk_dp.c | 14 ++++++++++++++
drivers/gpu/drm/mediatek/mtk_dp_reg.h | 5 +++++
2 files changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index 2cb47f663756..2f220472a08a 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -141,6 +141,7 @@ struct mtk_dp_data {
unsigned int smc_cmd;
const struct mtk_dp_efuse_fmt *efuse_fmt;
bool audio_supported;
+ bool audio_pkt_in_hblank_area;
};
static const struct mtk_dp_efuse_fmt mt8195_edp_efuse_fmt[MTK_DP_CAL_MAX] = {
@@ -1394,6 +1395,18 @@ static void mtk_dp_sdp_set_down_cnt_init_in_hblank(struct mtk_dp *mtk_dp)
SDP_DOWN_CNT_INIT_IN_HBLANK_DP_ENC1_P0_MASK);
}
+static void mtk_dp_audio_sample_arrange_disable(struct mtk_dp *mtk_dp)
+{
+ /* arrange audio packets into the Hblanking and Vblanking area */
+ if (!mtk_dp->data->audio_pkt_in_hblank_area)
+ return;
+
+ mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3374, 0,
+ SDP_ASP_INSERT_IN_HBLANK_DP_ENC1_P0_MASK);
+ mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3374, 0,
+ SDP_DOWN_ASP_CNT_INIT_DP_ENC1_P0_MASK);
+}
+
static void mtk_dp_setup_tu(struct mtk_dp *mtk_dp)
{
u32 sram_read_start = min_t(u32, MTK_DP_TBC_BUF_READ_START_ADDR,
@@ -1403,6 +1416,7 @@ static void mtk_dp_setup_tu(struct mtk_dp *mtk_dp)
MTK_DP_PIX_PER_ADDR);
mtk_dp_set_sram_read_start(mtk_dp, sram_read_start);
mtk_dp_setup_encoder(mtk_dp);
+ mtk_dp_audio_sample_arrange_disable(mtk_dp);
mtk_dp_sdp_set_down_cnt_init_in_hblank(mtk_dp);
mtk_dp_sdp_set_down_cnt_init(mtk_dp, sram_read_start);
}
diff --git a/drivers/gpu/drm/mediatek/mtk_dp_reg.h b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
index 84e38cef03c2..f38d6ff12afe 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp_reg.h
+++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
@@ -228,6 +228,11 @@
VIDEO_STABLE_CNT_THRD_DP_ENC1_P0 | \
SDP_DP13_EN_DP_ENC1_P0 | \
BS2BS_MODE_DP_ENC1_P0)
+
+#define MTK_DP_ENC1_P0_3374 0x3374
+#define SDP_ASP_INSERT_IN_HBLANK_DP_ENC1_P0_MASK BIT(12)
+#define SDP_DOWN_ASP_CNT_INIT_DP_ENC1_P0_MASK GENMASK(11, 0)
+
#define MTK_DP_ENC1_P0_33F4 0x33f4
#define DP_ENC_DUMMY_RW_1_AUDIO_RST_EN BIT(0)
#define DP_ENC_DUMMY_RW_1 BIT(9)
--
2.43.0