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Fri, 02 Jan 2026 01:43:55 -0800 (PST) Received: from hu-krichai-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a2f3c66829sm376154255ad.10.2026.01.02.01.43.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jan 2026 01:43:54 -0800 (PST) From: Krishna Chaitanya Chundru Date: Fri, 02 Jan 2026 15:13:06 +0530 Subject: [PATCH 6/7] clk: qcom: gcc-x1e80100: Do not turn off PCIe GDSCs during gdsc_disable() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260102-pci_gdsc_fix-v1-6-b17ed3d175bc@oss.qualcomm.com> References: <20260102-pci_gdsc_fix-v1-0-b17ed3d175bc@oss.qualcomm.com> In-Reply-To: <20260102-pci_gdsc_fix-v1-0-b17ed3d175bc@oss.qualcomm.com> To: Bjorn Andersson , Michael Turquette , Stephen Boyd , Taniya Das , Konrad Dybcio , Bartosz Golaszewski , Shazad Hussain , Sibi Sankar , Bryan O'Donoghue , Melody Olvera , Dmitry Baryshkov , Taniya Das , Dmitry Baryshkov , Konrad Dybcio , Imran Shaik , Abel Vesa , Abel Vesa Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Rajendra Nayak , manivannan.sadhasivam@oss.qualcomm.com, Krishna Chaitanya Chundru , stable@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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This can happen during scenarios such as system suspend and breaks the resume of PCIe controllers from suspend. So use PWRSTS_RET_ON to indicate the GDSC driver to not turn off the GDSCs during gdsc_disable() and allow the hardware to transition the GDSCs to retention when the parent domain enters low power state during system suspend. Fixes: 161b7c401f4b ("clk: qcom: Add Global Clock controller (GCC) driver f= or X1E80100") Cc: stable@vger.kernel.org Signed-off-by: Krishna Chaitanya Chundru Reviewed-by: Bryan O'Donoghue --- drivers/clk/qcom/gcc-x1e80100.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/clk/qcom/gcc-x1e80100.c b/drivers/clk/qcom/gcc-x1e8010= 0.c index e46e65e631513e315de2f663f3dab73e1eb70604..d659d988660ea5e548fcae6f9f2= a9a25081e6dda 100644 --- a/drivers/clk/qcom/gcc-x1e80100.c +++ b/drivers/clk/qcom/gcc-x1e80100.c @@ -6490,7 +6490,7 @@ static struct gdsc gcc_pcie_0_tunnel_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_0_tunnel_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 @@ -6502,7 +6502,7 @@ static struct gdsc gcc_pcie_1_tunnel_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_1_tunnel_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 @@ -6514,7 +6514,7 @@ static struct gdsc gcc_pcie_2_tunnel_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_2_tunnel_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 @@ -6526,7 +6526,7 @@ static struct gdsc gcc_pcie_3_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_3_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 @@ -6550,7 +6550,7 @@ static struct gdsc gcc_pcie_4_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_4_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 @@ -6574,7 +6574,7 @@ static struct gdsc gcc_pcie_5_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_5_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 @@ -6610,7 +6610,7 @@ static struct gdsc gcc_pcie_6a_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_6a_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 @@ -6622,7 +6622,7 @@ static struct gdsc gcc_pcie_6b_gdsc =3D { .pd =3D { .name =3D "gcc_pcie_6b_gdsc", }, - .pwrsts =3D PWRSTS_OFF_ON, + .pwrsts =3D PWRSTS_RET_ON, .flags =3D POLL_CFG_GDSCR | RETAIN_FF_ENABLE | VOTABLE, }; =20 --=20 2.34.1