From patchwork Tue Jan 2 21:07:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Hasemeyer X-Patchwork-Id: 13509386 Received: from mail-io1-f41.google.com (mail-io1-f41.google.com [209.85.166.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 81DA31774E for ; Tue, 2 Jan 2024 21:08:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="grYAbEpE" Received: by mail-io1-f41.google.com with SMTP id ca18e2360f4ac-7b7a9f90f34so534011439f.2 for ; Tue, 02 Jan 2024 13:08:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1704229729; x=1704834529; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=kFylEVwz6/jxQq1ZweDsmHVwptzQPuyXfUnhxAJ710k=; b=grYAbEpEGE+CY/lcVPOfo1nBGvsxD8gVu/PNJDxGLdxkl9JO2ttuV88LTUkBL6Nvu+ NDF4w4L2ULGkrLijFRY+PJ9FqOQwcOwgH7o1SnrTzXrh2gfX/nI8eyCeHlWwXbJ2WXe1 yzIBQweyAEsgllUrhRDkcgnbHpf4Er2TQLN0g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704229729; x=1704834529; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kFylEVwz6/jxQq1ZweDsmHVwptzQPuyXfUnhxAJ710k=; b=mdpatxVJR/5fdj+d/vknYgfEYSnK6P6rHzw6+TGj+/ewwWVcs5ZxsfYHcAld7akeiw wvQ4pHlBD3NZfBh9HTJTPGW+a7k4TGGVvQVsqLsOdJ5vlawFwQB0vBrFGCzVJ5R+nF8K ZgqH2Mc8B7XxYlz2TGoO6z1WpgiwpRLhSUvDWelG6YRwOKSSNigOgCdMnCFWmOGQLFd8 7kBLSDkE7rjjB+eEaJNsHAsseQTDY6df+IV/14sbREidLAaJFJSIl0BT/fZ7zivdZGqZ rl1+RRq1FHIPt3iexhg4X2DXSNywupyWPEKZaFq1DLFNfy8fnF3hutV2+q3s2k6AhASF HQRA== X-Gm-Message-State: AOJu0YyzLMKNbzCvK2f6hm7hB3gPYQP5J1icxNyUDiriUbLsnNPKAld9 V4D894CCzkU3EkO6p0+jPDrNxgeDxEfa X-Google-Smtp-Source: AGHT+IHEJbHth/xM3Ut15mQoMsgLsloOubZy6ZZ76RDsFpY7YTAqNzQUU9yztAFE3PAbKB9V85o07g== X-Received: by 2002:a6b:c342:0:b0:7bb:cc1:a3b3 with SMTP id t63-20020a6bc342000000b007bb0cc1a3b3mr7901421iof.21.1704229729647; Tue, 02 Jan 2024 13:08:49 -0800 (PST) Received: from markhas1.lan (71-218-50-136.hlrn.qwest.net. [71.218.50.136]) by smtp.gmail.com with ESMTPSA id bo18-20020a056638439200b0046993034c91sm6956978jab.77.2024.01.02.13.08.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jan 2024 13:08:49 -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 , Alim Akhtar , Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v4 07/24] ARM: dts: samsung: exynos5420: Enable cros-ec-spi as wake source Date: Tue, 2 Jan 2024 14:07:31 -0700 Message-ID: <20240102140734.v4.7.I06b059021de1bf6103e60a73211f078f2af75d17@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-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Signed-off-by: Mark Hasemeyer --- (no changes since v3) Changes in v3: -Update commit message to provide details of the motivation behind the change Changes in v2: -Split by arch/soc arch/arm/boot/dts/samsung/exynos5420-peach-pit.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/samsung/exynos5420-peach-pit.dts b/arch/arm/boot/dts/samsung/exynos5420-peach-pit.dts index 4e757b6e28e1c..3759742d38cac 100644 --- a/arch/arm/boot/dts/samsung/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/samsung/exynos5420-peach-pit.dts @@ -967,6 +967,7 @@ cros_ec: cros-ec@0 { reg = <0>; spi-max-frequency = <3125000>; google,has-vbc-nvram; + wakeup-source; controller-data { samsung,spi-feedback-delay = <1>; From patchwork Tue Jan 2 21:07:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Hasemeyer X-Patchwork-Id: 13509387 Received: from mail-io1-f41.google.com (mail-io1-f41.google.com [209.85.166.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3BF771798F for ; Tue, 2 Jan 2024 21:08:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="NxKC8Bg1" Received: by mail-io1-f41.google.com with SMTP id ca18e2360f4ac-7bb0ab8e79fso312767639f.1 for ; Tue, 02 Jan 2024 13:08:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1704229730; x=1704834530; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Iih8S9CbSKYXK6Eu1V5z5fk9f7rCImQ6DnJQzgwRsXQ=; b=NxKC8Bg1E9loB28npLQy86G1Uk0jberzz0pipqr7NQKvJ55wAfFyIo/RUlTOuhxG8u jQOtXZm8zekL6yMFVXzNdqAqdEDBIxF65VbIf9DGIXLYs5Dz0n1Qr4cPnF3jb3NqdZ55 Sb4E+K1G9ILQM6kDWcB0LKl5Ru1vymvI/M29o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704229730; x=1704834530; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Iih8S9CbSKYXK6Eu1V5z5fk9f7rCImQ6DnJQzgwRsXQ=; b=Z3NRnq3ouCTTUMXz1V3JFi2ZvuWCivqG3AzhyIXYT3IunG88HBllg5yVpoYL05mSsD +Tf9ilxR4YIGHTBMWcXOeYM5648ii9UpWxQhF5gZtzRXNnPKBtj6+KIFxsszXE6nxIOf P41g2wOR1eQAL/3J7VZfiilXevU5yB4GuL2cdBeF215Yuw4dNhftIebXsZnWQwmv98Vv YFZPlnKh9OBuqCAE0iI49/6i1sDpQd/1IgKYiQzFrItZjPzf3OtqwGrP7fWr0X1z/f27 S8V5p5arOrYC7nXi0cWiQhCE0gUXitKeDqezctCs3hINs0z1u85y/beU5t0PMKwoBo6Y Az4Q== X-Gm-Message-State: AOJu0Yy3SzyQb7I7uEI9HL9ub8CW3mXM9H7SGG1HDoLoNmmMDlpj/8HY tX6ycWIbOkkpxAV2TtOCRa/Gi45CB4JL X-Google-Smtp-Source: AGHT+IEGMyFoc4xM4Z76PcN9nzKX4GmQlxsOK5XWY9+A3y0Tt67mNC5lPz5MkPwv5iXKSvpSPmJo2g== X-Received: by 2002:a5e:a50b:0:b0:7b7:55fc:7d4 with SMTP id 11-20020a5ea50b000000b007b755fc07d4mr24457360iog.18.1704229730619; Tue, 02 Jan 2024 13:08:50 -0800 (PST) Received: from markhas1.lan (71-218-50-136.hlrn.qwest.net. [71.218.50.136]) by smtp.gmail.com with ESMTPSA id bo18-20020a056638439200b0046993034c91sm6956978jab.77.2024.01.02.13.08.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jan 2024 13:08:50 -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 , Alim Akhtar , Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v4 08/24] ARM: dts: samsung: exynos5800: Enable cros-ec-spi as wake source Date: Tue, 2 Jan 2024 14:07:32 -0700 Message-ID: <20240102140734.v4.8.Idc995ce08a52ba4c5fde0685118ddf2873fc8acd@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-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Signed-off-by: Mark Hasemeyer --- (no changes since v3) Changes in v3: -Update commit message to provide details of the motivation behind the change Changes in v2: -Split by arch/soc arch/arm/boot/dts/samsung/exynos5800-peach-pi.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/samsung/exynos5800-peach-pi.dts b/arch/arm/boot/dts/samsung/exynos5800-peach-pi.dts index f91bc4ae008e4..9bbbdce9103a6 100644 --- a/arch/arm/boot/dts/samsung/exynos5800-peach-pi.dts +++ b/arch/arm/boot/dts/samsung/exynos5800-peach-pi.dts @@ -949,6 +949,7 @@ cros_ec: cros-ec@0 { reg = <0>; spi-max-frequency = <3125000>; google,has-vbc-nvram; + wakeup-source; controller-data { samsung,spi-feedback-delay = <1>;