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[34.125.199.175]) by smtp.gmail.com with UTF8SMTPSA id mf8-20020a170902fc8800b001d9fc6cb5f2sm4818207plb.203.2024.02.19.12.23.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Feb 2024 12:23:30 -0800 (PST) From: Stephen Boyd To: Lee Jones Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, devicetree@vger.kernel.org, chrome-platform@lists.linux.dev, Douglas Anderson , Pin-yen Lin , Linus Walleij , Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Benson Leung , Guenter Roeck Subject: [PATCH 1/2] dt-bindings: cros-ec: Add properties for GPIO controller Date: Mon, 19 Feb 2024 12:23:23 -0800 Message-ID: <20240219202325.4095816-2-swboyd@chromium.org> X-Mailer: git-send-email 2.44.0.rc0.258.g7320e95886-goog In-Reply-To: <20240219202325.4095816-1-swboyd@chromium.org> References: <20240219202325.4095816-1-swboyd@chromium.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791360261069222128 X-GMAIL-MSGID: 1791360261069222128 The ChromeOS embedded controller (EC) supports setting the state of GPIOs when the system is unlocked, and getting the state of GPIOs in all cases. The GPIOs are on the EC itself, so the EC acts similar to a GPIO expander. Add the #gpio-cells and gpio-controller properties to the cros-ec binding so that other devices described in DT can get the GPIOs on the EC. Cc: Linus Walleij Cc: Bartosz Golaszewski Cc: Rob Herring Cc: Krzysztof Kozlowski Cc: Conor Dooley Cc: Lee Jones Cc: Benson Leung Cc: Guenter Roeck Cc: Cc: Cc: Pin-yen Lin Signed-off-by: Stephen Boyd Reviewed-by: Krzysztof Kozlowski --- Documentation/devicetree/bindings/mfd/google,cros-ec.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml index e1ca4f297c6d..aac8819bd00b 100644 --- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml +++ b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml @@ -93,6 +93,11 @@ properties: '#size-cells': const: 0 + '#gpio-cells': + const: 2 + + gpio-controller: true + typec: $ref: /schemas/chrome/google,cros-ec-typec.yaml# @@ -275,6 +280,8 @@ examples: interrupts = <99 0>; interrupt-parent = <&gpio7>; spi-max-frequency = <5000000>; + #gpio-cells = <2>; + gpio-controller; proximity { compatible = "google,cros-ec-mkbp-proximity"; From patchwork Mon Feb 19 20:23:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 203265 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:693c:2685:b0:108:e6aa:91d0 with SMTP id mn5csp22612dyc; Mon, 19 Feb 2024 12:24:41 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCVTdobR1htFgFwcKEgUMD7cC3qEuQzzcNUQl7pCDhWIYx9hL6Mio8E7q9fXUyyH/zBrdKa65F3IjiVEqxBnyUWeYq/l9g== X-Google-Smtp-Source: AGHT+IEBzjeXPK8zBP3R4AX0dLiMmGajFS68gQFfx0yxdto6dHAhY6QQmqI4uuhb9xUQjsrrrLVa X-Received: by 2002:a05:6358:281b:b0:178:9b16:5bbe with SMTP id k27-20020a056358281b00b001789b165bbemr15473522rwb.9.1708374281013; Mon, 19 Feb 2024 12:24:41 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1708374280; cv=pass; d=google.com; s=arc-20160816; b=Lr/54J7SeqaCx64Ct25AV81ToqeBabFLhW9QsV6JNtw3IzlCDBWEnGucu8Eozh2GkC mLHryznQuT9VZUq7vZH5O6qBwdCAqq2+foTIBXdDtuUQH7ImsP+MBVzWg8IWq7/wrPTa v5K6/6zMB9w8AO3Os9Eo4sYVVR989uVpWZGuMGt6TP/5y8k7EKi91qvTVYeBp5wPBmdb tsZKE8y6DpbEw7pQxykZ4vkRdLOe6WULwTdxP8UziNMopqblMQu0/At3HXPrsUezP89p Gm78H7+sSaXgPm6X2MuLdGw2fX3p7J/qxY5srt0rX9LJcznKgFRbD6djyKYnzzKuZP7Q Aqew== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=GaHCMRLTHpVjbQpn0nm8Soa0CT5I0pTuDvK1Y4TvoOs=; fh=OWE2+gUuIajBKU97UwoBjDf0cV7qdzV0PoGFas244ss=; b=BCYHm90ESwuz7CrlQ18Y/U8wb+atDrw3r4GbvIjJdL7X0glLs/aH5BcihqZKTOKQOb JRKJ4LnT+NDQvsFa75CqjTkEjcWA3jHj/nzzp342Mt0ZxRjMZVaOP2qZNcNdmoRPgHe4 gnpmrqi5xwa9/x8kMEeuQfsFtIbCD8zFDvY7ESOjBJ+IiqtwlXx8PCMPn12pPbKNZ3x6 M0LcHXb9FbaRIDDC793IPXoMeqkS/mFPxY8SiUntlLOWTrVBeW++DBs77s7TlebCJSha CyfM3P9k4rz0HFq0ka2kqkBrquX7BuwJsqM63pW+Sb9gX0YTI29z2M5Zgi+N1GQXKMNH znnA==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=Lk50Vlzo; arc=pass (i=1 spf=pass spfdomain=chromium.org dkim=pass dkdomain=chromium.org dmarc=pass fromdomain=chromium.org); spf=pass (google.com: domain of linux-kernel+bounces-71960-ouuuleilei=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-71960-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. 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[34.125.199.175]) by smtp.gmail.com with UTF8SMTPSA id e21-20020a17090ac21500b00298dd684b8csm5810598pjt.32.2024.02.19.12.23.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Feb 2024 12:23:31 -0800 (PST) From: Stephen Boyd To: Lee Jones Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, devicetree@vger.kernel.org, chrome-platform@lists.linux.dev, Douglas Anderson , Pin-yen Lin , Linus Walleij , Bartosz Golaszewski , Benson Leung , Guenter Roeck Subject: [PATCH 2/2] mfd: cros_ec_dev: Add gpio device if feature present on EC Date: Mon, 19 Feb 2024 12:23:24 -0800 Message-ID: <20240219202325.4095816-3-swboyd@chromium.org> X-Mailer: git-send-email 2.44.0.rc0.258.g7320e95886-goog In-Reply-To: <20240219202325.4095816-1-swboyd@chromium.org> References: <20240219202325.4095816-1-swboyd@chromium.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791360270160971718 X-GMAIL-MSGID: 1791360270160971718 The ChromeOS embedded controller (EC) supports setting the state of GPIOs when the system is unlocked, and getting the state of GPIOs in all cases. Check for the feature support by checking for the GPIO feature and then populate a sub-device for the gpio hardware on the EC. Cc: Lee Jones Cc: Linus Walleij Cc: Bartosz Golaszewski Cc: Benson Leung Cc: Guenter Roeck Cc: Cc: Pin-yen Lin Signed-off-by: Stephen Boyd --- drivers/mfd/cros_ec_dev.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c index 603b1cd52785..9c3f8488b416 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -74,6 +74,10 @@ static const struct mfd_cell cros_ec_cec_cells[] = { { .name = "cros-ec-cec", }, }; +static const struct mfd_cell cros_ec_gpio_cells[] = { + { .name = "cros-ec-gpio", }, +}; + static const struct mfd_cell cros_ec_rtc_cells[] = { { .name = "cros-ec-rtc", }, }; @@ -97,6 +101,11 @@ static const struct cros_feature_to_cells cros_subdevices[] = { .mfd_cells = cros_ec_cec_cells, .num_cells = ARRAY_SIZE(cros_ec_cec_cells), }, + { + .id = EC_FEATURE_GPIO, + .mfd_cells = cros_ec_gpio_cells, + .num_cells = ARRAY_SIZE(cros_ec_gpio_cells), + }, { .id = EC_FEATURE_RTC, .mfd_cells = cros_ec_rtc_cells,