From patchwork Thu Oct 10 12:29:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Kemnade X-Patchwork-Id: 834401 Received: from mail.andi.de1.cc (mail.andi.de1.cc [178.238.236.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D4FE61C57AD; Thu, 10 Oct 2024 12:30:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.238.236.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728563408; cv=none; b=Ayjq5Ptkj7T7USSNoLNT696QtUCWcorY37MaXGNv3gXArcJYhCay9lCHgOgE03iguSyFtxbNXhd/pU+0LXWZoekmZ+ZHxjGs/E0Kz3Y6DtshD7hS4JX2b2A0HU9aWhKztN50a+5tkG5HZWgDPv0uxxdcoVGPmRXS3jRoyaaenuw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728563408; c=relaxed/simple; bh=zIsf5wBtJEcRsHHarX8fdw1tTc6HKm1kV19ptcg4D9Q=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=jZoA91nI8YUPmR8S639beGQJkpw1VDGTcsqCG2VNvrsjN5w9bvLBFkfUsz5+nBcVWjXVgWFAZ2hna/SsKl9P/CDlYZnX+H2bD296vjYqgKadTLS8+g5FHh60qf53cEaOrjZp57V8XZJZS+VaNE+Nnv5ehwDg/gnrEExzXjDa6Jo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info; spf=pass smtp.mailfrom=kemnade.info; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b=fUk3Cqs1; arc=none smtp.client-ip=178.238.236.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kemnade.info Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b="fUk3Cqs1" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kemnade.info; s=20220719; h=References:In-Reply-To:Cc:From:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID; bh=WoXNrrK9utFPkWsdOWLdvgndBfH4FnI9f6ttIiYO7Ak=; b=fUk3Cqs1KxESUYV7zjgtIZB6Dh +dA7v7GzQs/XUosn4FMTR6RcoNPK1CUB9e74ygLHZCieulg15ItbogQbPfm2ABIIKAn1/sgkLQAoY oFugY2yNP1WCb/qnuV2L5JcuA6l41Afvkvrh8mlk23UzU0en8ARXYPSC6rb9t3hMU4GF4s5V8V3si iG1aNugVvikqSeVbVwEx3hQfrT1zc3smn4YDOWg2Z2U7FwllmCA2Ey04eH8fBhUF8oQPvZDxcamXR TjaVgVWc34AEDAibtqAplEVt9mB/egnFfuuuxca+iACsaETID2uUNGGFrPmObO6gOcM4TfEjop4EG Aunv/o3Q==; From: Andreas Kemnade To: linux-kernel@vger.kernel.org, Rob Herring , rogerq@kernel.org, linux-omap@vger.kernel.org, Krzysztof Kozlowski , tony@atomide.com, devicetree@vger.kernel.org, khilman@baylibre.com, Conor Dooley , aaro.koskinen@iki.fi Cc: Andreas Kemnade Subject: [PATCH v2 3/4] ARM: dts: omap: omap4-epson-embt2ws: add unknown gpio outputs Date: Thu, 10 Oct 2024 14:29:56 +0200 Message-Id: <20241010122957.85164-4-andreas@kemnade.info> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241010122957.85164-1-andreas@kemnade.info> References: <20241010122957.85164-1-andreas@kemnade.info> Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Set them to the state seen in a running system, initialized by vendor u-boot or kernel. Add line names where they are defined in the vendor kernel. gpio15 resets something in the display, otherwise meaning of the gpios is not known. Signed-off-by: Andreas Kemnade Reviewed-by: Roger Quadros --- .../boot/dts/ti/omap/omap4-epson-embt2ws.dts | 92 +++++++++++++++++++ 1 file changed, 92 insertions(+) diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts index 7684868a2eed..983a21d95db3 100644 --- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts +++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts @@ -115,6 +115,73 @@ wl12xx_vmmc: wl12xx-vmmc { }; }; +&gpio1 { + pinctrl-names = "default"; + pinctrl-0 = <&gpio1_hog_pins &gpio1wk_hog_pins>; + + lb-reset-hog { + gpio-hog; + gpios = <9 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "lb_reset"; + }; + + power-en-hog { + gpio-hog; + gpios = <10 GPIO_ACTIVE_HIGH>; + output-high; + line-name = "power_en"; + }; + + /* + * Name taken from vendor kernel but no evidence of actual usage found + * nor what it really controls. + */ + panel-power-en-hog { + gpio-hog; + gpios = <14 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "panel_power_en"; + }; + + /* + * These two are exported to sysfs in vendor kernel, usage unknown, + * backlight state seems unrelated to these. + */ + blc-r-hog { + gpio-hog; + gpios = <17 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "blc_r"; + }; + + blc-l-hog { + gpio-hog; + gpios = <16 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "blc_l"; + }; + + high-hog { + gpio-hog; + gpios = <15 GPIO_ACTIVE_HIGH /* maybe dsi to dpi chip reset? */ + 21 GPIO_ACTIVE_HIGH + 26 GPIO_ACTIVE_HIGH>; + output-high; + line-name = "unknown-high"; + }; + + low-hog { + gpio-hog; + gpios = <18 GPIO_ACTIVE_HIGH + 19 GPIO_ACTIVE_HIGH + 20 GPIO_ACTIVE_HIGH + 22 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "unknown-low"; + }; +}; + &i2c1 { pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; @@ -406,6 +473,22 @@ OMAP4_IOPAD(0x56, PIN_INPUT_PULLUP | MUX_MODE3) /* gpio35 */ >; }; + gpio1_hog_pins: pinmux-gpio1-hog-pins { + pinctrl-single,pins = < + OMAP4_IOPAD(0x1b4, PIN_OUTPUT | MUX_MODE3) /* gpio14 */ + OMAP4_IOPAD(0x1b8, PIN_OUTPUT | MUX_MODE3) /* gpio16 */ + OMAP4_IOPAD(0x1ba, PIN_OUTPUT | MUX_MODE3) /* gpio17 */ + + OMAP4_IOPAD(0x1b6, PIN_OUTPUT | MUX_MODE3) /* gpio15 */ + OMAP4_IOPAD(0x1bc, PIN_OUTPUT | MUX_MODE3) /* gpio18 */ + OMAP4_IOPAD(0x1be, PIN_OUTPUT | MUX_MODE3) /* gpio19 */ + OMAP4_IOPAD(0x1c0, PIN_OUTPUT | MUX_MODE3) /* gpio20 */ + OMAP4_IOPAD(0x1c2, PIN_OUTPUT | MUX_MODE3) /* gpio21 */ + OMAP4_IOPAD(0x1c4, PIN_OUTPUT | MUX_MODE3) /* gpio22 */ + OMAP4_IOPAD(0x1cc, PIN_OUTPUT | MUX_MODE3) /* gpio26 */ + >; + }; + i2c1_pins: pinmux-i2c1-pins { pinctrl-single,pins = < OMAP4_IOPAD(0x122, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c1_scl */ @@ -527,6 +610,15 @@ OMAP4_IOPAD(0x1c8, PIN_OUTPUT | MUX_MODE3) /* gpio_24 / WLAN_EN */ }; }; +&omap4_pmx_wkup { + gpio1wk_hog_pins: pinmux-gpio1wk-hog-pins { + pinctrl-single,pins = < + OMAP4_IOPAD(0x68, PIN_INPUT_PULLDOWN | MUX_MODE3) /* gpio9 */ + OMAP4_IOPAD(0x6a, PIN_INPUT | MUX_MODE3) /* gpio10 */ + >; + }; +}; + &uart2 { pinctrl-names = "default"; pinctrl-0 = <&uart2_pins &bt_pins>;