From: Shawn Guo Date: Fri, 27 Feb 2026 07:19:58 +0000 (+0800) Subject: arm64: dts: hisilicon: poplar: Correct PCIe reset GPIO polarity X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1f2b0f2b5e37b2c27540a175aea2755a3799433;p=thirdparty%2Flinux.git arm64: dts: hisilicon: poplar: Correct PCIe reset GPIO polarity The PCIe reset GPIO on Poplar is actually active low. The active high worked before because kernel driver didn't respect the setting from DT. This is changed since commit 1d26a55fbeb9 ("PCI: histb: Switch to using gpiod API"), and thus PCIe on Poplar got brken since then. Fix the problem by correcting the polarity. Fixes: 32fa01761bd9 ("arm64: dts: hi3798cv200: enable PCIe support for poplar board") Cc: stable@vger.kernel.org Signed-off-by: Shawn Guo Signed-off-by: Wei Xu --- diff --git a/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts b/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts index 7d370dac4c85..579d55daa7d0 100644 --- a/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts +++ b/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts @@ -179,7 +179,7 @@ }; &pcie { - reset-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio4 4 GPIO_ACTIVE_LOW>; vpcie-supply = <®_pcie>; status = "okay"; };