From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Ritesh Kumar <quic_riteshk@quicinc.com>,
robin.clark@oss.qualcomm.com, lumag@kernel.org,
abhinav.kumar@linux.dev, sean@poorly.run,
marijn.suijten@somainline.org, 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, quic_mahap@quicinc.com,
andersson@kernel.org, konradybcio@kernel.org, mani@kernel.org,
James.Bottomley@HansenPartnership.com,
martin.petersen@oracle.com, vkoul@kernel.org, kishon@kernel.org,
cros-qcom-dts-watchers@chromium.org
Cc: linux-phy@lists.infradead.org, linux-arm-msm@vger.kernel.org,
dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-scsi@vger.kernel.org, quic_vproddut@quicinc.com
Subject: Re: [PATCH v4 2/2] arm64: dts: qcom: lemans: Add eDP ref clock for eDP PHYs
Date: Wed, 28 Jan 2026 13:41:36 +0100 [thread overview]
Message-ID: <795c4862-de48-44b4-9af9-6d9185a3c3ea@oss.qualcomm.com> (raw)
In-Reply-To: <20260128114853.2543416-3-quic_riteshk@quicinc.com>
On 1/28/26 12:48 PM, Ritesh Kumar wrote:
> The eDP PHY nodes on lemans were missing the reference clock voting.
> This initially went unnoticed because the clock was implicitly enabled
> by the UFS PHY driver, and the eDP PHY happened to rely on that.
>
> After commit 77d2fa54a945 ("scsi: ufs: qcom : Refactor phy_power_on/off
> calls"), the UFS driver no longer keeps the reference clock enabled.
> As a result, the eDP PHY fails to power on.
>
> To fix this, add eDP reference clock for eDP PHYs on lemans chipset
> ensuring reference clock is enabled.
>
> Fixes: e1e3e5673f8d7 ("arm64: dts: qcom: sa8775p: add DisplayPort device nodes")
> Signed-off-by: Ritesh Kumar <quic_riteshk@quicinc.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
next prev parent reply other threads:[~2026-01-28 12:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-28 11:48 [PATCH v4 0/2] Add edp reference clock for lemans Ritesh Kumar
2026-01-28 11:48 ` [PATCH v4 1/2] dt-bindings: phy: qcom-edp: Add reference clock for sa8775p eDP PHY Ritesh Kumar
2026-01-29 16:53 ` Rob Herring (Arm)
2026-03-04 18:57 ` Bjorn Andersson
2026-03-11 13:07 ` Ritesh Kumar
2026-03-30 14:28 ` Bjorn Andersson
2026-03-30 18:42 ` Dmitry Baryshkov
2026-01-28 11:48 ` [PATCH v4 2/2] arm64: dts: qcom: lemans: Add eDP ref clock for eDP PHYs Ritesh Kumar
2026-01-28 12:41 ` Konrad Dybcio [this message]
2026-05-10 12:31 ` (subset) [PATCH v4 0/2] Add edp reference clock for lemans Vinod Koul
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