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(unknown [61.154.14.86]) by smtp.qiye.163.com (Hmail) with ESMTP id 3e3a94cd2; Wed, 13 May 2026 15:44:30 +0800 (GMT+08:00) From: Damon Ding 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 Subject: [PATCH v5 05/10] drm/rockchip: analogix_dp: Enable hclk for RK3588 Date: Wed, 13 May 2026 15:44:09 +0800 Message-Id: <20260513074414.2053435-6-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260513074414.2053435-1-damon.ding@rock-chips.com> References: <20260513074414.2053435-1-damon.ding@rock-chips.com> MIME-Version: 1.0 X-HM-Tid: 0a9e204b5cba03a3kunm7763bb98560e6 X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVlDHhhOVh4dTR9CSRpKTBpJHVYVFA kWGhdVEwETFhoSFyQUDg9ZV1kYEgtZQVlNSlVKTk9VSk9VQ01ZV1kWGg8SFR0UWUFZT0tIVUpLSE pKQk1VSktLVUpCWQY+ DKIM-Signature: a=rsa-sha256; b=cYjkP0Jn3/GI/l5mu9Rhw74MrM/MH2oHf0GTQ2A6hpHXABeLt6lJadEZ+Os555M5Yil01oQeI4CQR1tXlJlHbStD/Pcmakznhe0BLOxn7GH5INEKrWX+llSgMMz+j6TJ8ZmmgaErlGBc0uopQPtcWAjFFNHyj6zYjCuZZICDLUQ=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=qzrSU6F51VUS8IVrczy9Q/DVSlabFI0ne4m7RTJg/xI=; h=date:mime-version:subject:message-id:from; X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260513_004937_816484_E8EF6EB1 X-CRM114-Status: UNSURE ( 9.06 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 , Laurent.pinchart@ideasonboard.com, luca.ceresoli@bootlin.com, nicolas.frattaroli@collabora.com, linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Acquire and enable the HCLK_VO1 bus clock explicitly for RK3588 eDP controller to guarantee register and datapath access. The clock was previously enabled implicitly via rockchip,vo-grf phandle reference, which relies on side effect and is fragile. Fetch optional "hclk" clock in driver to align with updated device tree binding and keep consistent with hardware clock dependency. Fixes: 729f8eefdcad ("drm/rockchip: analogix_dp: Add support for RK3588") Signed-off-by: Damon Ding --- Changes in v4: - Modify the commit msg. --- drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index 06072efd7fca..d2af5eb29dbb 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -311,6 +311,7 @@ static int rockchip_dp_of_probe(struct rockchip_dp_device *dp) { struct device *dev = dp->dev; struct device_node *np = dev->of_node; + struct clk *clk; dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); if (IS_ERR(dp->grf)) @@ -327,6 +328,11 @@ static int rockchip_dp_of_probe(struct rockchip_dp_device *dp) return dev_err_probe(dev, PTR_ERR(dp->pclk), "failed to get pclk property\n"); + clk = devm_clk_get_optional_enabled(dev, "hclk"); + if (IS_ERR(clk)) + return dev_err_probe(dev, PTR_ERR(clk), + "failed to get hclk property\n"); + dp->rst = devm_reset_control_get(dev, "dp"); if (IS_ERR(dp->rst)) return dev_err_probe(dev, PTR_ERR(dp->rst), -- 2.34.1 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip