From: Damon Ding <damon.ding@rock-chips.com>
To: hjc@rock-chips.com, heiko@sntech.de, andy.yan@rock-chips.com,
maarten.lankhorst@linux.intel.com, mripard@kernel.org,
tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
andrzej.hajda@intel.com, neil.armstrong@linaro.org,
rfoss@kernel.org
Cc: dmitry.baryshkov@oss.qualcomm.com, devicetree@vger.kernel.org,
jonas@kwiboo.se, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, sebastian.reichel@collabora.com,
jernej.skrabec@gmail.com, dianders@chromium.org,
linux-rockchip@lists.infradead.org,
Damon Ding <damon.ding@rock-chips.com>,
Laurent.pinchart@ideasonboard.com, luca.ceresoli@bootlin.com,
nicolas.frattaroli@collabora.com,
linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com
Subject: [PATCH v4 01/10] dt-bindings: display: rockchip: analogix-dp: Allow hclk as third clock
Date: Tue, 12 May 2026 17:56:35 +0800 [thread overview]
Message-ID: <20260512095644.1946084-2-damon.ding@rock-chips.com> (raw)
In-Reply-To: <20260512095644.1946084-1-damon.ding@rock-chips.com>
RK3588 eDP controller requires HCLK_VO1 (video output bus clock)
to access the VO1 GRF registers and enable the video datapath.
Previously, the clock was enabled implicitly via the 'rockchip,vo-grf'
phandle reference, which allowed the eDP to work without explicitly
managing the hclk_vo1 clock. However, this is not safe or explicit.
To align with other display controllers (HDMI) on RK3588 and make
the clock requirement explicit, expand clock-names to support either
"grf" (for older SoCs) or "hclk" (for RK3588) as the third clock.
This makes the clock dependency clear and removes reliance on implicit
clock enablement from GRF phandle.
Fixes: f855146263b1 ("dt-bindings: display: rockchip: analogix-dp: Add support for RK3588")
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
---
Changes in v4:
- Modify the commit msg.
---
.../bindings/display/rockchip/rockchip,analogix-dp.yaml | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
index d99b23b88cc5..d2bc8636b626 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
@@ -26,7 +26,9 @@ properties:
items:
- const: dp
- const: pclk
- - const: grf
+ - enum:
+ - grf
+ - hclk
power-domains:
maxItems: 1
--
2.34.1
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next prev parent reply other threads:[~2026-05-12 9:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 9:56 [PATCH v4 00/10] Add eDP support for RK3576 Damon Ding
2026-05-12 9:56 ` Damon Ding [this message]
2026-05-12 17:12 ` [PATCH v4 01/10] dt-bindings: display: rockchip: analogix-dp: Allow hclk as third clock Conor Dooley
2026-05-13 6:48 ` Damon Ding
2026-05-12 9:56 ` [PATCH v4 02/10] dt-bindings: display: rockchip: analogix-dp: Add per-clock descriptions Damon Ding
2026-05-12 17:11 ` Conor Dooley
2026-05-12 9:56 ` [PATCH v4 03/10] arm64: dts: rockchip: Add missing hclk for RK3588 eDP0 Damon Ding
2026-05-12 9:56 ` [PATCH v4 04/10] arm64: dts: rockchip: Add missing hclk for RK3588 eDP1 Damon Ding
2026-05-12 9:56 ` [PATCH v4 05/10] drm/rockchip: analogix_dp: Enable hclk for RK3588 Damon Ding
2026-05-12 9:56 ` [PATCH v4 06/10] dt-bindings: display: rockchip: analogix-dp: Add support for RK3576 Damon Ding
2026-05-12 17:13 ` Conor Dooley
2026-05-12 9:56 ` [PATCH v4 07/10] arm64: dts: rockchip: Add eDP node " Damon Ding
2026-05-12 9:56 ` [PATCH v4 08/10] drm/bridge: analogix_dp: Rename and simplify is_rockchip() Damon Ding
2026-05-12 9:56 ` [PATCH v4 09/10] drm/bridge: analogix_dp: Add support for RK3576 Damon Ding
2026-05-12 9:56 ` [PATCH v4 10/10] drm/rockchip: " Damon Ding
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