linux-kernel - [PATCH 1/3] drm/msm/dpu: Add DPU_INTF_DATABUS

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Message-ID: <20230525-add-widebus-support-v1-1-c7069f2efca1@quicinc.com>
Date:   Tue, 13 Jun 2023 18:57:11 -0700
From:   Jessica Zhang <quic_jesszhan@...cinc.com>
To:     Rob Clark <robdclark@...il.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Marijn Suijten <marijn.suijten@...ainline.org>
CC:     Jessica Zhang <quic_jesszhan@...cinc.com>,
        <quic_abhinavk@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/3] drm/msm/dpu: Add DPU_INTF_DATABUS_WIDEN feature flag for DPU >= 5.0

DPU 5.x+ supports a databus widen mode that allows more data to be sent
per pclk. Enable this feature flag on all relevant chipsets.

Signed-off-by: Jessica Zhang <quic_jesszhan@...cinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 3 ++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 36ba3f58dcdf..0be7bf0bfc41 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -103,7 +103,8 @@
 	(BIT(DPU_INTF_INPUT_CTRL) | \
 	 BIT(DPU_INTF_TE) | \
 	 BIT(DPU_INTF_STATUS_SUPPORTED) | \
-	 BIT(DPU_DATA_HCTL_EN))
+	 BIT(DPU_DATA_HCTL_EN) | \
+	 BIT(DPU_INTF_DATABUS_WIDEN))
 
 #define INTF_SC7280_MASK (INTF_SC7180_MASK | BIT(DPU_INTF_DATA_COMPRESS))
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index b860784ade72..b9939e00f5e0 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -182,6 +182,7 @@ enum {
  *                                  than video timing
  * @DPU_INTF_STATUS_SUPPORTED       INTF block has INTF_STATUS register
  * @DPU_INTF_DATA_COMPRESS          INTF block has DATA_COMPRESS register
+ * @DPU_INTF_DATABUS_WIDEN          INTF block has DATABUS_WIDEN register
  * @DPU_INTF_MAX
  */
 enum {
@@ -190,6 +191,7 @@ enum {
 	DPU_DATA_HCTL_EN,
 	DPU_INTF_STATUS_SUPPORTED,
 	DPU_INTF_DATA_COMPRESS,
+	DPU_INTF_DATABUS_WIDEN,
 	DPU_INTF_MAX
 };
 

-- 
2.40.1