From patchwork Tue Dec 5 18:46:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Francesco Dolcini X-Patchwork-Id: 13480635 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E794AC10F05 for ; Tue, 5 Dec 2023 18:46:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=skbi1HNRPPGVLXxpiwsfGYeW3n6XVsvoRZPqvT/0o5Y=; b=zxIiIyvWD2DFRV +l6rJwVbRyKgZl3TDDFfxL583Eko036PZj+vioVpEtfiAEnf7g+aLkn3yWv/ZODDY5qgAPrLwrC/g D4EqD+2sJ2rmpXaEH+R9AfYUV7BYVO5h8cy86Q4MxIwoSG5vx9FKftiIONUkSwSu8ZBscxl88fQU+ xOfOpoP4hvYIav1B9YMXpYuqo5V5jEmOU1Kv0lB7v9ACE5jgAgAzOjS5ZtOLXtTq4f3WoHLR8B7/U ZUp7quhk2Dy/uvKh60QhdtdOAU3Lw4vceIdxmtRxBbB1MXJ4YD90HiPi/9+3NCUSz9/Comy5nIGmM rRa4vd0TigOuHBLKjxbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rAaR9-008BuN-2R; Tue, 05 Dec 2023 18:46:27 +0000 Received: from mail11.truemail.it ([217.194.8.81]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rAaR3-008BpF-1d for linux-arm-kernel@lists.infradead.org; Tue, 05 Dec 2023 18:46:24 +0000 Received: from francesco-nb.corp.toradex.com (31-10-206-125.static.upc.ch [31.10.206.125]) by mail11.truemail.it (Postfix) with ESMTPA id 28A0E20284; Tue, 5 Dec 2023 19:46:13 +0100 (CET) From: Francesco Dolcini To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Joao Paulo Goncalves , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Francesco Dolcini Subject: [PATCH v3 1/3] arm64: dts: ti: verdin-am62: improve spi1 chip-select pinctrl Date: Tue, 5 Dec 2023 19:46:03 +0100 Message-Id: <20231205184605.35225-2-francesco@dolcini.it> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231205184605.35225-1-francesco@dolcini.it> References: <20231205184605.35225-1-francesco@dolcini.it> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231205_104621_707080_14152441 X-CRM114-Status: GOOD ( 11.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joao Paulo Goncalves Verdin SPI_1 interface has a dedicated hardware controlled chip select that is currently configured in the same pinctrl group as MISO/MOSI/CLK, however it is possible that it can be used only as a standard GPIO be it a chip select or not. To maximize flexibility and avoid duplication in the carrier board dts files move the SPI_1 CS in a dedicated pinctrl and also adds an additional pinctrl to simplify using SPI_1 CS as a GPIO. Signed-off-by: Joao Paulo Goncalves Signed-off-by: Francesco Dolcini --- arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi index 5db52f237253..6a06724b6d16 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -233,6 +233,13 @@ AM62X_IOPAD(0x0018, PIN_INPUT, 7) /* (F24) OSPI0_D3.GPIO0_6 */ /* SODIMM 62 */ >; }; + /* Verdin SPI_1 CS as GPIO */ + pinctrl_qspi1_io4_gpio: main-gpio0-7-default-pins { + pinctrl-single,pins = < + AM62X_IOPAD(0x001c, PIN_INPUT, 7) /* (J23) OSPI0_D4.GPIO0_7 */ /* SODIMM 202 */ + >; + }; + /* Verdin QSPI_1_CS# as GPIO (conflict with Verdin QSPI_1 interface) */ pinctrl_qspi1_cs_gpio: main-gpio0-11-default-pins { pinctrl-single,pins = < @@ -599,12 +606,18 @@ AM62X_IOPAD(0x164, PIN_OUTPUT, 0) /* (AA19) RGMII2_TX_CTL */ /* SODIMM 211 */ pinctrl_spi1: main-spi1-default-pins { pinctrl-single,pins = < AM62X_IOPAD(0x0020, PIN_INPUT, 1) /* (J25) OSPI0_D5.SPI1_CLK */ /* SODIMM 196 */ - AM62X_IOPAD(0x001c, PIN_INPUT, 1) /* (J23) OSPI0_D4.SPI1_CS0 */ /* SODIMM 202 */ AM62X_IOPAD(0x0024, PIN_INPUT, 1) /* (H25) OSPI0_D6.SPI1_D0 */ /* SODIMM 200 */ AM62X_IOPAD(0x0028, PIN_INPUT, 1) /* (J22) OSPI0_D7.SPI1_D1 */ /* SODIMM 198 */ >; }; + /* Verdin SPI_1 CS */ + pinctrl_spi1_cs0: main-spi1-cs0-default-pins { + pinctrl-single,pins = < + AM62X_IOPAD(0x001c, PIN_INPUT, 1) /* (J23) OSPI0_D4.SPI1_CS0 */ /* SODIMM 202 */ + >; + }; + /* ETH_25MHz_CLK */ pinctrl_eth_clock: main-system-clkout0-default-pins { pinctrl-single,pins = < @@ -1278,7 +1291,7 @@ &main_mcan0 { /* Verdin SPI_1 */ &main_spi1 { pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_spi1>; + pinctrl-0 = <&pinctrl_spi1>, <&pinctrl_spi1_cs0>; ti,pindir-d0-out-d1-in; status = "disabled"; };