From mboxrd@z Thu Jan 1 00:00:00 1970 From: mindentropy@gmail.com (mindentropy) Date: Wed, 28 Jun 2017 23:15:18 +0530 Subject: [PATCH] Modified imx7d-sdb.dts file so that VLDO4 provides 2.8V for MIPI CSI/DSI Message-ID: <20170628174518.5950-1-mindentropy@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Gautam Bhat * According to mx7sabresd schematics the MIPI CSI/DSI voltage rails should be 2.8V but the voltage provided is a maximum of 3.3V and minimum of 1.8V. Providing such a higher voltage might damage the peripherals and violates the schematic settings. Signed-off-by: Gautam Bhat --- arch/arm/boot/dts/imx7d-sdb.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts index 5be01a1bf840..1da1f97ec342 100644 --- a/arch/arm/boot/dts/imx7d-sdb.dts +++ b/arch/arm/boot/dts/imx7d-sdb.dts @@ -262,8 +262,8 @@ }; vgen6_reg: vldo4 { - regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; regulator-always-on; }; }; -- 2.11.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: mindentropy Subject: [PATCH] Modified imx7d-sdb.dts file so that VLDO4 provides 2.8V for MIPI CSI/DSI Date: Wed, 28 Jun 2017 23:15:18 +0530 Message-ID: <20170628174518.5950-1-mindentropy@gmail.com> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: festevam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Cc: mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, Shawn Guo , Sascha Hauer , Fabio Estevam , Rob Herring , Mark Rutland , Russell King , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org From: Gautam Bhat * According to mx7sabresd schematics the MIPI CSI/DSI voltage rails should be 2.8V but the voltage provided is a maximum of 3.3V and minimum of 1.8V. Providing such a higher voltage might damage the peripherals and violates the schematic settings. Signed-off-by: Gautam Bhat --- arch/arm/boot/dts/imx7d-sdb.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts index 5be01a1bf840..1da1f97ec342 100644 --- a/arch/arm/boot/dts/imx7d-sdb.dts +++ b/arch/arm/boot/dts/imx7d-sdb.dts @@ -262,8 +262,8 @@ }; vgen6_reg: vldo4 { - regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; regulator-always-on; }; }; -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752142AbdF1RqH (ORCPT ); Wed, 28 Jun 2017 13:46:07 -0400 Received: from mail-pf0-f196.google.com ([209.85.192.196]:34821 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752055AbdF1Rpw (ORCPT ); Wed, 28 Jun 2017 13:45:52 -0400 From: mindentropy To: festevam@gmail.com Cc: mindentropy@gmail.com, Shawn Guo , Sascha Hauer , Fabio Estevam , Rob Herring , Mark Rutland , Russell King , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] Modified imx7d-sdb.dts file so that VLDO4 provides 2.8V for MIPI CSI/DSI Date: Wed, 28 Jun 2017 23:15:18 +0530 Message-Id: <20170628174518.5950-1-mindentropy@gmail.com> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gautam Bhat * According to mx7sabresd schematics the MIPI CSI/DSI voltage rails should be 2.8V but the voltage provided is a maximum of 3.3V and minimum of 1.8V. Providing such a higher voltage might damage the peripherals and violates the schematic settings. Signed-off-by: Gautam Bhat --- arch/arm/boot/dts/imx7d-sdb.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts index 5be01a1bf840..1da1f97ec342 100644 --- a/arch/arm/boot/dts/imx7d-sdb.dts +++ b/arch/arm/boot/dts/imx7d-sdb.dts @@ -262,8 +262,8 @@ }; vgen6_reg: vldo4 { - regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; regulator-always-on; }; }; -- 2.11.0