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: 759497 Received: from mail-io1-f51.google.com (mail-io1-f51.google.com [209.85.166.51]) (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 62DE617744 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-f51.google.com with SMTP id ca18e2360f4ac-7ba8c218fe1so522825939f.3 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=ATGCvSQrNLxasK3fLX2T8l68tjK35NtrMHCGT34T34NN4Srzh3aaoS+zrM2H4X/jDl rG2qLXTtvGFzAEs2AAPKGzx0s6dKt6X3TcMGMWsJZvGF70Q5KqMFzWFqDYmzAtItEUwI pV2twSwO3hRbhSfQ5Q7O2QruHp+0kcPkfRzTwOESWDZl9wrIW2efRPoW4LcyZUUNqJka epw3kg+ib8+LPtYn2Xpz9EhRXC3oa1CUU5oluQzCDJY9yA7ERT5Bubvp9WL4F/LpkZ/s qRYWJ7rR1VDr0lmTcwmpLU3JKlRJSGKdyNDHguy45DI4eBglPWjhy09IQFKXk4B6j3LM YCXg== X-Gm-Message-State: AOJu0Yz63APgeXp+FozE2+0j3heyd7QTI5AKuZNjaANr1m+J2Bd7QGn3 eRTFyPysaLmYWz2gDvp1aktFx9UQh39O 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: devicetree@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>;