From mboxrd@z Thu Jan 1 00:00:00 1970 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 B09EDC6FD1F for ; Tue, 26 Mar 2024 18:55:41 +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=xKD1SAZJpGeuR4zx2lz93+2t9onr312aGuk7BejhQUQ=; b=3/2vFBOgea20px eqDUdNUcZEUL1VIvW2fR8fUbI/ho3Px1L9khPbE6QWlDe5DJMht8vreiRMHYHfZftCmGaFy1ckbWh Dt6MYl4SiHXPrIvqRWu3HSg0o1vRWhcw+bGFlSQbghGBbQLm07DhiAr89nnCCasr25UrarhHHu4LB dRRdtL3xRxeqn2Ff4eYH6Rg7fD+Z+57yMj4ODCG6Me44Kj+mjTFGA4F1KHT3gC6WPvjR+2n6X5PwJ FKzyeM2R0nT3mwbIjizRz11yAUfIEyclhudM33zLgz7ETHIYZteO1ee5PsJAJZxKkyg3igOblcYfn 5vcJ9va7uAHEIhLROeAg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rpBxE-000000060yf-2CMF; Tue, 26 Mar 2024 18:55:24 +0000 Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rpBwm-000000060la-3d50 for linux-arm-kernel@lists.infradead.org; Tue, 26 Mar 2024 18:54:59 +0000 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 42QIshQg064686; Tue, 26 Mar 2024 13:54:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1711479283; bh=XhGMipz2RJEepgM1inPEbiVZpQtvwi2BB5eqncZug+k=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Y6ckrf1Z33cJ6oNeE2PFFaxivkl50uMsXhJK20Sq8XaL2lVqW2lYsZKMvy/sqlzgO KUbJyiX+oQ1d1B6TSgOXa7UPl1GEjK9BeC0VrJVULUtzG0g0lVoAWMEecxuYhuTV+/ FS6nRoERHTo0Uru8UP/kHrTWD+WHC55B6QMme5U8= Received: from DFLE111.ent.ti.com (dfle111.ent.ti.com [10.64.6.32]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 42QIsh53100412 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 26 Mar 2024 13:54:43 -0500 Received: from DFLE100.ent.ti.com (10.64.6.21) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 26 Mar 2024 13:54:43 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 26 Mar 2024 13:54:43 -0500 Received: from lelvsmtp5.itg.ti.com ([10.249.42.149]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 42QIsfIl091446; Tue, 26 Mar 2024 13:54:42 -0500 From: Andrew Davis To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , Andrew Davis Subject: [PATCH 3/6] arm64: dts: ti: k3-j7200: Remove UART baud rate selection Date: Tue, 26 Mar 2024 13:54:38 -0500 Message-ID: <20240326185441.29656-3-afd@ti.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240326185441.29656-1-afd@ti.com> References: <20240326185441.29656-1-afd@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240326_115457_060468_814034B4 X-CRM114-Status: GOOD ( 13.44 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As described in the binding document for the "current-speed" property: "This should only be present in case a driver has no chance to know the baud rate of the slave device." This is not the case for the UART used in K3 devices, the current baud-rate can be calculated from the registers. Having this property has the effect of actually skipping the baud-rate setup in some drivers as it assumes it will already be set to this rate, which may not always be the case. It seems this property's purpose was mistaken as selecting the desired baud-rate, which it does not. It would have been wrong to select that here anyway as DT is not the place for configuration, especially when there are already more standard ways to set serial baud-rates. Signed-off-by: Andrew Davis --- arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 10 ---------- arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 2 -- 2 files changed, 12 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi index 657f9cc9f4ea0..9386bf3ef9f68 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi @@ -440,7 +440,6 @@ main_uart0: serial@2800000 { reg = <0x00 0x02800000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 146 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 146 2>; clock-names = "fclk"; @@ -452,7 +451,6 @@ main_uart1: serial@2810000 { reg = <0x00 0x02810000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 278 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 278 2>; clock-names = "fclk"; @@ -464,7 +462,6 @@ main_uart2: serial@2820000 { reg = <0x00 0x02820000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 279 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 279 2>; clock-names = "fclk"; @@ -476,7 +473,6 @@ main_uart3: serial@2830000 { reg = <0x00 0x02830000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 280 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 280 2>; clock-names = "fclk"; @@ -488,7 +484,6 @@ main_uart4: serial@2840000 { reg = <0x00 0x02840000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 281 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 281 2>; clock-names = "fclk"; @@ -500,7 +495,6 @@ main_uart5: serial@2850000 { reg = <0x00 0x02850000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 282 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 282 2>; clock-names = "fclk"; @@ -512,7 +506,6 @@ main_uart6: serial@2860000 { reg = <0x00 0x02860000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 283 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 283 2>; clock-names = "fclk"; @@ -524,7 +517,6 @@ main_uart7: serial@2870000 { reg = <0x00 0x02870000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 284 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 284 2>; clock-names = "fclk"; @@ -536,7 +528,6 @@ main_uart8: serial@2880000 { reg = <0x00 0x02880000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 285 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 285 2>; clock-names = "fclk"; @@ -548,7 +539,6 @@ main_uart9: serial@2890000 { reg = <0x00 0x02890000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 286 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 286 2>; clock-names = "fclk"; diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi index 7cf21c99956e0..c547bc8fb6082 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi @@ -259,7 +259,6 @@ wkup_uart0: serial@42300000 { reg = <0x00 0x42300000 0x00 0x100>; interrupts = ; clock-frequency = <48000000>; - current-speed = <115200>; power-domains = <&k3_pds 287 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 287 2>; clock-names = "fclk"; @@ -271,7 +270,6 @@ mcu_uart0: serial@40a00000 { reg = <0x00 0x40a00000 0x00 0x100>; interrupts = ; clock-frequency = <96000000>; - current-speed = <115200>; power-domains = <&k3_pds 149 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 149 2>; clock-names = "fclk"; -- 2.39.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel