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[71.218.50.136]) by smtp.gmail.com with ESMTPSA id bo18-20020a056638439200b0046993034c91sm6956978jab.77.2024.01.02.13.08.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jan 2024 13:08:56 -0800 (PST) From: Mark Hasemeyer To: LKML Cc: Sudeep Holla , AngeloGioacchino Del Regno , Rob Herring , Andy Shevchenko , Krzysztof Kozlowski , Konrad Dybcio , Raul Rangel , Tzung-Bi Shih , Mark Hasemeyer , Douglas Anderson , Bjorn Andersson , Conor Dooley , Krzysztof Kozlowski , Rob Herring , cros-qcom-dts-watchers@chromium.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v4 15/24] arm64: dts: qcom: sc7280: Enable cros-ec-spi as wake source Date: Tue, 2 Jan 2024 14:07:39 -0700 Message-ID: <20240102140734.v4.15.I7ea3f53272c9b7cd77633adfd18058ba443eed96@changeid> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog In-Reply-To: <20240102210820.2604667-1-markhas@chromium.org> References: <20240102210820.2604667-1-markhas@chromium.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The cros_ec driver currently assumes that cros-ec-spi compatible device nodes are a wakeup-source even though the wakeup-source property is not defined. Some Chromebooks use a separate wake pin, while others overload the interrupt for wake and IO. With the current assumption, spurious wakes can occur on systems that use a separate wake pin. It is planned to update the driver to no longer assume that the EC interrupt pin should be enabled for wake. Add the wakeup-source property to all cros-ec-spi compatible device nodes to signify to the driver that they should still be a valid wakeup source. Reviewed-by: Douglas Anderson Signed-off-by: Mark Hasemeyer --- Changes in v4: -Add Douglas's Reviewed-by tag from v2 review Changes in v3: -Update commit message to provide details of the motivation behind the change Changes in v2: -Split by arch/soc arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 1 + arch/arm64/boot/dts/qcom/sc7280-idp-ec-h1.dtsi | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/bo= ot/dts/qcom/sc7280-herobrine.dtsi index 9ea6636125ad9..2ba4ea60cb147 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi @@ -548,6 +548,7 @@ cros_ec: ec@0 { pinctrl-names =3D "default"; pinctrl-0 =3D <&ap_ec_int_l>; spi-max-frequency =3D <3000000>; + wakeup-source; =20 cros_ec_pwm: pwm { compatible =3D "google,cros-ec-pwm"; diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp-ec-h1.dtsi b/arch/arm64/bo= ot/dts/qcom/sc7280-idp-ec-h1.dtsi index ebae545c587c4..fbfac7534d3c6 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-idp-ec-h1.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-idp-ec-h1.dtsi @@ -19,6 +19,7 @@ cros_ec: ec@0 { pinctrl-names =3D "default"; pinctrl-0 =3D <&ap_ec_int_l>; spi-max-frequency =3D <3000000>; + wakeup-source; =20 cros_ec_pwm: pwm { compatible =3D "google,cros-ec-pwm"; --=20 2.43.0.472.g3155946c3a-goog