From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F3A873E558F; Sat, 28 Feb 2026 17:41:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300499; cv=none; b=HvEt93gLXOmu49kE9EWKwSgxs/goCh1fFJ6nMk6jkHlQ6ygCKKAOIL2CpiMBL6u/vHnu58JUoHb0O5I91PkugWPCsPx+wfDW+/f1wYgHRh50DPrzkjTG0nZHaL8QtGnpVr6meJY70S0gmxmx/Ic7YLWAGb2UVExZjgQHQxRS9AQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300499; c=relaxed/simple; bh=lcawo1snmYO4JkAn7IB+DhZ12UD686+CTTT4COmR6yE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FtWuyL+2REAE9DwfgoQ/Fd+DealnYVjHtpXoAK7hN+f3RAz7GkvPzXQ9ROB0cF2ME/PrLYkazIlR3NJsVvaeUrLlm1tuQHY7+BPhog6T+4VIgTNRYMcX7GmrnMsDomRw72tYas5lukpaCRyNg/VkknDL6eRFzrn1FtfjiHvtlPQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IwyNQYxf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IwyNQYxf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03926C116D0; Sat, 28 Feb 2026 17:41:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300498; bh=lcawo1snmYO4JkAn7IB+DhZ12UD686+CTTT4COmR6yE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IwyNQYxfMl4ZjAaLdEpqYQas04OtobQqKGKRlsi8+nPo5D0RB7FUGfkqlYWe0N1Gq b5yD03ONIXrRjhNrpqDCscj4AfpOyKKkQv0UIYhGWxbH5LkLbaqYKq8eKghRHi2lwf gz9u5ajUoqGXwHCNGac0j3dc0INSr4OjR7FZLwRMdkQDKu0yJqwxnLvHDzYqRWBqBi 1x5MJkZhQlBj5LgLXRVvvG6h+BN99tSCF/E3oLr93vXArqnxpCCyMjRTHVJEGWc+W5 l0tbFnB0E/KxbKXiJzp9iuE3fydene4rbNR1sJ4ELBR1pkEWboyaM7CrGEYFRHLi1W tIyss/u0yGjjw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Alexey Minnekhanov , Dmitry Baryshkov , Bjorn Andersson , Sasha Levin Subject: [PATCH 6.19 536/844] arm64: dts: qcom: sdm630: Add missing MDSS reset Date: Sat, 28 Feb 2026 12:27:29 -0500 Message-ID: <20260228173244.1509663-537-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Alexey Minnekhanov [ Upstream commit 0c1d1591f898d54eaa4c8f2a1535ab21bf4e42e4 ] If the OS does not support recovering the state left by the bootloader it needs a way to reset display hardware, so that it can start from a clean state. Add a reference to the relevant reset. It fixes display init issue appeared in Linux v6.17: without reset device boots into black screen and you need to turn display off/on to "fix" it. Also sometimes it can boot into solid blue color with these messages in kernel log: hw recovery is not complete for ctl:2 [drm:dpu_encoder_phys_vid_prepare_for_kickoff:569] [dpu error]enc33 intf1 ctl 2 reset failure: -22 [drm:dpu_encoder_frame_done_timeout:2727] [dpu error]enc33 frame done timeout Fixes: 0e789b491ba0 ("pmdomain: core: Leave powered-on genpds on until sync_state") Cc: stable@vger.kernel.org # 6.17 Signed-off-by: Alexey Minnekhanov Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20251116-sdm660-mdss-reset-v2-3-6219bec0a97f@postmarketos.org Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/qcom/sdm630.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi index b383e480a394d..876a6871745cf 100644 --- a/arch/arm64/boot/dts/qcom/sdm630.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi @@ -1563,6 +1563,7 @@ mdss: display-subsystem@c900000 { reg-names = "mdss_phys", "vbif_phys"; power-domains = <&mmcc MDSS_GDSC>; + resets = <&mmcc MDSS_BCR>; clocks = <&mmcc MDSS_AHB_CLK>, <&mmcc MDSS_AXI_CLK>, -- 2.51.0