From patchwork Mon Feb 3 20:38:45 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kaustabh Chakraborty X-Patchwork-Id: 13958198 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 7CD74C02193 for ; Mon, 3 Feb 2025 21:02:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=QRf7/gxcUrMFZG7Gu3Jr7wpSUOhn76rk/VFig5eqqcc=; b=2MCvwfX2HoOO7sNkGdGyAlMOGd rc0PR9v8ckZB+fJCTzq1bLuHcHPqjls0dM9X5JnN28tZDzJvF7rdtpub8cn7EakMjLRvMsKxh0ceK sBRztU2GOu2u8x16euGIygReNfOJoBa/glWuGPGEY4UXHn1Dmpqa/ym/BZDupk570gQK5vjam7fXZ RGDmeTu+BCoSCvfqMahx4PXtOItK4EeUnqCawp1xXRPibInPhfWjgCmgre/+4qufJhP+PVLVxb/hg OEQjHdtjpslVXTnYktr/ZYDQUpQ0X/Hjun6EeTmNQdZuNsRr7kVxOUkR2o/1bJLSxsVw2PCwoC58v 3THYDIYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tf3Zy-0000000GbdL-2rGV; Mon, 03 Feb 2025 21:02:02 +0000 Received: from layka.disroot.org ([178.21.23.139]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tf3Dw-0000000GYZV-1Dii for linux-arm-kernel@lists.infradead.org; Mon, 03 Feb 2025 20:39:17 +0000 Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id A5BF925BE3; Mon, 3 Feb 2025 21:39:14 +0100 (CET) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id IP7yUFp_xi-K; Mon, 3 Feb 2025 21:39:13 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1738615153; bh=EzyYoUZps3zDjCcM6n577kaxIQx3hsLmnb8iBzOF4mg=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=XsDdfqFulOHI6M/PHcABgbYQ3SwrwoGhTshDD5stfM3SdzNfJbgl/3G0eo+SLh0Av rFMs9amYmUbKR+0+RgV0WIdVYN+A3cNLNdIF0w9QR2jNYvjo0uIC+EZ4qXjXs2JKHv Zbh+6RhWNL4D2Bw1661OR/g1wRHix0p4DUdjSxaeDAaJdPBDb8FE0/PVrBkUlMxUVC /ByKRg8eI9XM5xFlbg4r6M+cSsDTXfSt1qlNaMSoapt9EsczkZ95qlmekPI7D/wlsi ywPJ38FaDHlvd3B8KZn7d78f9XKdMLzcfwkTyDd1aetLpUebhNuVKJVO2hehensIkR xyKeHQ8DeR/hg== From: Kaustabh Chakraborty Date: Tue, 04 Feb 2025 02:08:45 +0530 Subject: [PATCH 1/2] dt-bindings: serial: samsung: add exynos7870-uart compatible MIME-Version: 1.0 Message-Id: <20250204-exynos7870-uart-v1-1-06be6aa96284@disroot.org> References: <20250204-exynos7870-uart-v1-0-06be6aa96284@disroot.org> In-Reply-To: <20250204-exynos7870-uart-v1-0-06be6aa96284@disroot.org> To: Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar Cc: Sergey Lisov , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Kaustabh Chakraborty X-Developer-Signature: v=1; a=ed25519-sha256; t=1738615135; l=1217; i=kauschluss@disroot.org; s=20250202; h=from:subject:message-id; bh=EzyYoUZps3zDjCcM6n577kaxIQx3hsLmnb8iBzOF4mg=; b=P9dF4R9Ip6IzJ0/AQCOHBV+sLHek/IaozMBORHpLkVhVYEa3MDZTC5084SwGH7gcBEZqwQNYx eEtFShn/p4fC40WE8S/qJVbJdqtXEHaWaa5gIlPjTlKSwn41ObfhTr0 X-Developer-Key: i=kauschluss@disroot.org; a=ed25519; pk=h2xeR+V2I1+GrfDPAhZa3M+NWA0Cnbdkkq1bH3ct1hE= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250203_123916_466744_7377F38C X-CRM114-Status: UNSURE ( 9.41 ) X-CRM114-Notice: Please train this message. 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 Document the compatible string for Exynos7870's UART driver. The devicetree property samsung,uart-fifosize must be mandatory, as the driver enquires about the FIFO sizes. Signed-off-by: Kaustabh Chakraborty --- Documentation/devicetree/bindings/serial/samsung_uart.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml index 070eba9f19d3e039090c58a82f93d02eed58ab84..e4387d504407778ffddabeb674c51c984a1179b7 100644 --- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml +++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml @@ -26,6 +26,7 @@ properties: - samsung,s5pv210-uart - samsung,exynos4210-uart - samsung,exynos5433-uart + - samsung,exynos7870-uart - samsung,exynos850-uart - samsung,exynos8895-uart - items: @@ -161,6 +162,7 @@ allOf: contains: enum: - google,gs101-uart + - samsung,exynos7870-uart - samsung,exynos8895-uart then: required: From patchwork Mon Feb 3 20:38:46 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kaustabh Chakraborty X-Patchwork-Id: 13958199 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 7360FC02192 for ; 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Mon, 03 Feb 2025 21:03:23 +0000 Received: from layka.disroot.org ([178.21.23.139]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tf3E1-0000000GYbe-1XKP for linux-arm-kernel@lists.infradead.org; Mon, 03 Feb 2025 20:39:22 +0000 Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 34FD325BAE; Mon, 3 Feb 2025 21:39:20 +0100 (CET) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id ha58dUourWTk; Mon, 3 Feb 2025 21:39:19 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1738615159; bh=DKaXj47Da+oOZ2DQcNgkyu4NCrw4Nc+uxn3h436NOGA=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=mLcR2Uwi7DqCRxQ1H6HEipsfV44p499+wKRi5P+kkMQFdMgG80Cm01b26+jisdynS AIOizB0AxTODPXvz1BoTfb54Zz8qNx9kSFfx9afx9nmoYlZhgCQy/o6tVt2cMeVfA8 QVicNIai8jxipJ+xjvMjapdemlzRh+1wg8f5U8aIECnXQ/npnmzmtbpWsM5+Tk+lJ1 Z7X8gpSgilD9WB4zyDy71P/ZR769JjBahusvYOtPf+ypv4pjS3VXM4ZOygSPCsstyX IIlo8bEAxqugSmMQ/dizW3ae2yE11MYwmeTAV6NHmQsLiVL2+IQDbwTHBf6wPY6ZAh /OT8EJopXK+Yg== From: Kaustabh Chakraborty Date: Tue, 04 Feb 2025 02:08:46 +0530 Subject: [PATCH 2/2] tty: serial: samsung: add support for exynos7870 MIME-Version: 1.0 Message-Id: <20250204-exynos7870-uart-v1-2-06be6aa96284@disroot.org> References: <20250204-exynos7870-uart-v1-0-06be6aa96284@disroot.org> In-Reply-To: <20250204-exynos7870-uart-v1-0-06be6aa96284@disroot.org> To: Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar Cc: Sergey Lisov , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Kaustabh Chakraborty X-Developer-Signature: v=1; a=ed25519-sha256; t=1738615135; l=2740; i=kauschluss@disroot.org; s=20250202; h=from:subject:message-id; bh=DKaXj47Da+oOZ2DQcNgkyu4NCrw4Nc+uxn3h436NOGA=; b=uj2Sv/xe9gU7Vno2GXb4hXmkwM4+V3tMayUPmGNYurOU/cBfU224pzOtAKyGtsyPxjLkZ89Ho 9kt/g05uNIWAZiql7CULnC0iOrktD2mU6F60DONet+ZNg+JZ1zL/vQr X-Developer-Key: i=kauschluss@disroot.org; a=ed25519; pk=h2xeR+V2I1+GrfDPAhZa3M+NWA0Cnbdkkq1bH3ct1hE= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250203_123921_545065_D8EBB9B2 X-CRM114-Status: GOOD ( 13.13 ) 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 Add serial UART support for Exynos7870. The FIFO sizes are not defined in the driver, and they must be provided in the devicetree with the samsung,uart-fifosize property. Signed-off-by: Kaustabh Chakraborty --- drivers/tty/serial/samsung_tty.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c index 210fff7164c138e315d20ccaa4a29ce6a7bb2dfe..c8607633fea40df2ec221cfd3653c726094127cb 100644 --- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -2493,6 +2493,12 @@ static const struct s3c24xx_serial_drv_data exynos5433_serial_drv_data = { .fifosize = { 64, 256, 16, 256 }, }; +static const struct s3c24xx_serial_drv_data exynos7870_serial_drv_data = { + EXYNOS_COMMON_SERIAL_DRV_DATA, + /* samsung,uart-fifosize must be specified in the device tree. */ + .fifosize = { 0 }, +}; + static const struct s3c24xx_serial_drv_data exynos850_serial_drv_data = { EXYNOS_COMMON_SERIAL_DRV_DATA, .fifosize = { 256, 64, 64, 64 }, @@ -2533,6 +2539,7 @@ static const struct s3c24xx_serial_drv_data gs101_serial_drv_data = { #define EXYNOS4210_SERIAL_DRV_DATA (&exynos4210_serial_drv_data) #define EXYNOS5433_SERIAL_DRV_DATA (&exynos5433_serial_drv_data) +#define EXYNOS7870_SERIAL_DRV_DATA (&exynos7870_serial_drv_data) #define EXYNOS850_SERIAL_DRV_DATA (&exynos850_serial_drv_data) #define EXYNOS8895_SERIAL_DRV_DATA (&exynos8895_serial_drv_data) #define GS101_SERIAL_DRV_DATA (&gs101_serial_drv_data) @@ -2540,6 +2547,7 @@ static const struct s3c24xx_serial_drv_data gs101_serial_drv_data = { #else #define EXYNOS4210_SERIAL_DRV_DATA NULL #define EXYNOS5433_SERIAL_DRV_DATA NULL +#define EXYNOS7870_SERIAL_DRV_DATA NULL #define EXYNOS850_SERIAL_DRV_DATA NULL #define EXYNOS8895_SERIAL_DRV_DATA NULL #define GS101_SERIAL_DRV_DATA NULL @@ -2622,6 +2630,9 @@ static const struct platform_device_id s3c24xx_serial_driver_ids[] = { }, { .name = "s5l-uart", .driver_data = (kernel_ulong_t)S5L_SERIAL_DRV_DATA, + }, { + .name = "exynos7870-uart", + .driver_data = (kernel_ulong_t)EXYNOS7870_SERIAL_DRV_DATA, }, { .name = "exynos850-uart", .driver_data = (kernel_ulong_t)EXYNOS850_SERIAL_DRV_DATA, @@ -2651,6 +2662,8 @@ static const struct of_device_id s3c24xx_uart_dt_match[] = { .data = EXYNOS5433_SERIAL_DRV_DATA }, { .compatible = "apple,s5l-uart", .data = S5L_SERIAL_DRV_DATA }, + { .compatible = "samsung,exynos7870-uart", + .data = EXYNOS7870_SERIAL_DRV_DATA }, { .compatible = "samsung,exynos850-uart", .data = EXYNOS850_SERIAL_DRV_DATA }, { .compatible = "axis,artpec8-uart",