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From: Jonathan Marek <jonathan@marek.ca>
To: freedreno@lists.freedesktop.org
Cc: Rob Clark <robdclark@gmail.com>,
	Abhinav Kumar <quic_abhinavk@quicinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
	Sean Paul <sean@poorly.run>,
	Marijn Suijten <marijn.suijten@somainline.org>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Jessica Zhang <quic_jesszhan@quicinc.com>,
	Konrad Dybcio <konrad.dybcio@linaro.org>,
	Jiasheng Jiang <jiasheng@iscas.ac.cn>,
	Vinod Koul <vkoul@kernel.org>,
	linux-arm-msm@vger.kernel.org (open list:DRM DRIVER FOR MSM
	ADRENO GPU),
	dri-devel@lists.freedesktop.org (open list:DRM DRIVER FOR MSM
	ADRENO GPU), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 1/4] drm/msm/dsi: set VIDEO_COMPRESSION_MODE_CTRL_WC (fix video mode DSC)
Date: Tue, 14 Nov 2023 12:42:13 -0500	[thread overview]
Message-ID: <20231114174218.19765-1-jonathan@marek.ca> (raw)

Video mode DSC won't work if this field is not set correctly. Set it to fix
video mode DSC (for slice_per_pkt==1 cases at least).

Fixes: 08802f515c3 ("drm/msm/dsi: Add support for DSC configuration")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 9d355cdc3ec1..bddc57726fb9 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -847,6 +847,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 	u32 slice_per_intf, total_bytes_per_intf;
 	u32 pkt_per_line;
 	u32 eol_byte_num;
+	u32 bytes_per_pkt;
 
 	/* first calculate dsc parameters and then program
 	 * compress mode registers
@@ -854,6 +855,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 	slice_per_intf = msm_dsc_get_slices_per_intf(dsc, hdisplay);
 
 	total_bytes_per_intf = dsc->slice_chunk_size * slice_per_intf;
+	bytes_per_pkt = dsc->slice_chunk_size; /* * slice_per_pkt; */
 
 	eol_byte_num = total_bytes_per_intf % 3;
 
@@ -891,6 +893,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 		dsi_write(msm_host, REG_DSI_COMMAND_COMPRESSION_MODE_CTRL, reg_ctrl);
 		dsi_write(msm_host, REG_DSI_COMMAND_COMPRESSION_MODE_CTRL2, reg_ctrl2);
 	} else {
+		reg |= DSI_VIDEO_COMPRESSION_MODE_CTRL_WC(bytes_per_pkt);
 		dsi_write(msm_host, REG_DSI_VIDEO_COMPRESSION_MODE_CTRL, reg);
 	}
 }
-- 
2.26.1


WARNING: multiple messages have this Message-ID (diff)
From: Jonathan Marek <jonathan@marek.ca>
To: freedreno@lists.freedesktop.org
Cc: Vinod Koul <vkoul@kernel.org>,
	"open list:DRM DRIVER FOR MSM ADRENO GPU"
	<linux-arm-msm@vger.kernel.org>,
	Jiasheng Jiang <jiasheng@iscas.ac.cn>,
	Abhinav Kumar <quic_abhinavk@quicinc.com>,
	"open list:DRM DRIVER FOR MSM ADRENO GPU"
	<dri-devel@lists.freedesktop.org>,
	open list <linux-kernel@vger.kernel.org>,
	Konrad Dybcio <konrad.dybcio@linaro.org>,
	Jessica Zhang <quic_jesszhan@quicinc.com>,
	Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
	Marijn Suijten <marijn.suijten@somainline.org>,
	Sean Paul <sean@poorly.run>
Subject: [PATCH 1/4] drm/msm/dsi: set VIDEO_COMPRESSION_MODE_CTRL_WC (fix video mode DSC)
Date: Tue, 14 Nov 2023 12:42:13 -0500	[thread overview]
Message-ID: <20231114174218.19765-1-jonathan@marek.ca> (raw)

Video mode DSC won't work if this field is not set correctly. Set it to fix
video mode DSC (for slice_per_pkt==1 cases at least).

Fixes: 08802f515c3 ("drm/msm/dsi: Add support for DSC configuration")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 9d355cdc3ec1..bddc57726fb9 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -847,6 +847,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 	u32 slice_per_intf, total_bytes_per_intf;
 	u32 pkt_per_line;
 	u32 eol_byte_num;
+	u32 bytes_per_pkt;
 
 	/* first calculate dsc parameters and then program
 	 * compress mode registers
@@ -854,6 +855,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 	slice_per_intf = msm_dsc_get_slices_per_intf(dsc, hdisplay);
 
 	total_bytes_per_intf = dsc->slice_chunk_size * slice_per_intf;
+	bytes_per_pkt = dsc->slice_chunk_size; /* * slice_per_pkt; */
 
 	eol_byte_num = total_bytes_per_intf % 3;
 
@@ -891,6 +893,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 		dsi_write(msm_host, REG_DSI_COMMAND_COMPRESSION_MODE_CTRL, reg_ctrl);
 		dsi_write(msm_host, REG_DSI_COMMAND_COMPRESSION_MODE_CTRL2, reg_ctrl2);
 	} else {
+		reg |= DSI_VIDEO_COMPRESSION_MODE_CTRL_WC(bytes_per_pkt);
 		dsi_write(msm_host, REG_DSI_VIDEO_COMPRESSION_MODE_CTRL, reg);
 	}
 }
-- 
2.26.1


             reply	other threads:[~2023-11-14 17:44 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-14 17:42 Jonathan Marek [this message]
2023-11-14 17:42 ` [PATCH 1/4] drm/msm/dsi: set VIDEO_COMPRESSION_MODE_CTRL_WC (fix video mode DSC) Jonathan Marek
2023-11-14 17:42 ` [PATCH 2/4] drm/msm/dsi: add a comment to explain pkt_per_line encoding Jonathan Marek
2023-11-14 17:42   ` Jonathan Marek
2023-11-14 17:42 ` [PATCH 3/4] drm/msm/dsi: support DSC configurations with slice_per_pkt > 1 Jonathan Marek
2023-11-14 17:42   ` Jonathan Marek
2023-11-14 17:42 ` [PATCH 4/4] drm/msm/dsi: fix DSC for the bonded DSI case Jonathan Marek
2023-11-14 17:42   ` Jonathan Marek
2023-11-14 18:28   ` Marijn Suijten
2023-11-14 18:28     ` Marijn Suijten
2023-11-14 19:00     ` Jonathan Marek
2023-11-14 19:00       ` Jonathan Marek
2023-11-15 17:23       ` Marijn Suijten
2023-11-15 17:23         ` Marijn Suijten

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