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[80.251.214.228]) by smtp.gmail.com with ESMTPSA id i13sm11891041pgm.26.2021.07.04.19.50.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Jul 2021 19:50:59 -0700 (PDT) From: Shawn Guo To: Sebastian Reichel Cc: Stephan Gerhold , Rob Herring , Vinod Koul , Bjorn Andersson , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, Shawn Guo Subject: [PATCH 3/3] power: reset: qcom-pon: Add support for 'qcom, pon-reboot-not-used' Date: Mon, 5 Jul 2021 10:50:32 +0800 Message-Id: <20210705025032.12804-4-shawn.guo@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210705025032.12804-1-shawn.guo@linaro.org> References: <20210705025032.12804-1-shawn.guo@linaro.org> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Check property 'qcom,pon-reboot-not-used' and skip reboot-mode setup if the property is present. This is useful for devices that use IMEM instead of PON register to pass reboot mode, but still want to populate pwrkey and resin devices. Signed-off-by: Shawn Guo --- drivers/power/reset/qcom-pon.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/power/reset/qcom-pon.c b/drivers/power/reset/qcom-pon.c index 4a688741a88a..85fae9e85878 100644 --- a/drivers/power/reset/qcom-pon.c +++ b/drivers/power/reset/qcom-pon.c @@ -47,6 +47,14 @@ static int pm8916_pon_probe(struct platform_device *pdev) struct pm8916_pon *pon; int error; + if (device_property_present(&pdev->dev, "qcom,pon-reboot-not-used")) { + /* + * Skip reboot-mode setup and registration if PON is not used + * for passing reboot mode at all. + */ + goto done; + } + pon = devm_kzalloc(&pdev->dev, sizeof(*pon), GFP_KERNEL); if (!pon) return -ENOMEM; @@ -75,6 +83,7 @@ static int pm8916_pon_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pon); +done: return devm_of_platform_populate(&pdev->dev); }