From: Val Packett <val@packett.cool>
To: Konrad Dybcio <konradybcio@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Taniya Das <quic_tdas@quicinc.com>,
cros-qcom-dts-watchers@chromium.org,
Kalyan Thota <quic_kalyant@quicinc.com>,
Douglas Anderson <dianders@chromium.org>,
Harigovindan P <harigovi@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Subject: Re: [PATCH 0/3] SC7180 MDSS core reset
Date: Tue, 20 Jan 2026 08:43:42 -0300 [thread overview]
Message-ID: <2b532215-e530-4b9e-900a-e67c70d5e19e@packett.cool> (raw)
In-Reply-To: <20260120-topic-7180_dispcc_bcr-v1-0-0b1b442156c3@oss.qualcomm.com>
On 1/20/26 8:19 AM, Konrad Dybcio wrote:
> Add the missing reset for the display subsystem and wire it up, so that
> drivers can consume it.
>
> Compile-tested only.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> ---
Thanks!
Tested-by: Val Packett <val@packett.cool> # sc7180-ecs-liva-qc710
Might be worth noting in the commit message that the real world issue
this solves is that after probing the driver, the DPU would keep trying
to access the physical address that belonged to the EFI framebuffer,
causing constant IOMMU faults and visual glitches on the display output.
~val
P.S. what a coincidence that just a week ago this was discussed for
sdm845
https://lore.kernel.org/all/bfe55d1b-1b45-4187-84fe-9475cb90b00a@linaro.org/
next prev parent reply other threads:[~2026-01-20 11:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-20 11:19 Konrad Dybcio
2026-01-20 11:19 ` [PATCH 1/3] dt-bindings: clock: qcom,dispcc-sc7180: Define MDSS resets Konrad Dybcio
2026-01-20 11:22 ` Krzysztof Kozlowski
2026-01-20 16:51 ` Taniya Das
2026-01-20 11:19 ` [PATCH 2/3] clk: qcom: dispcc-sc7180: Add missing " Konrad Dybcio
2026-01-20 16:53 ` Taniya Das
2026-01-20 22:02 ` Dmitry Baryshkov
2026-01-20 11:19 ` [PATCH 3/3] arm64: dts: qcom: sc7180: Add missing MDSS core reset Konrad Dybcio
2026-01-20 11:21 ` Konrad Dybcio
2026-01-20 22:03 ` Dmitry Baryshkov
2026-01-21 10:39 ` Konrad Dybcio
2026-01-20 11:43 ` Val Packett [this message]
2026-01-20 21:45 ` [PATCH 0/3] SC7180 " Rob Herring
2026-03-24 3:42 ` (subset) " Bjorn Andersson
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