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From: mindentropy <mindentropy@gmail.com>
To: festevam@gmail.com
Cc: mindentropy@gmail.com, Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <kernel@pengutronix.de>,
	Fabio Estevam <fabio.estevam@nxp.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Russell King <linux@armlinux.org.uk>,
	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	[thread overview]
Message-ID: <20170628174518.5950-1-mindentropy@gmail.com> (raw)

From: Gautam Bhat <mindentropy@gmail.com>

 * 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 <mindentropy@gmail.com>
---
 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

WARNING: multiple messages have this Message-ID (diff)
From: mindentropy <mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: festevam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	Shawn Guo <shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Sascha Hauer <kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
	Fabio Estevam <fabio.estevam-3arQi8VN3Tc@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.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	[thread overview]
Message-ID: <20170628174518.5950-1-mindentropy@gmail.com> (raw)

From: Gautam Bhat <mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

 * 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 <mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 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

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WARNING: multiple messages have this Message-ID (diff)
From: mindentropy@gmail.com (mindentropy)
To: linux-arm-kernel@lists.infradead.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	[thread overview]
Message-ID: <20170628174518.5950-1-mindentropy@gmail.com> (raw)

From: Gautam Bhat <mindentropy@gmail.com>

 * 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 <mindentropy@gmail.com>
---
 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

             reply	other threads:[~2017-06-28 17:46 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-28 17:45 mindentropy [this message]
2017-06-28 17:45 ` [PATCH] Modified imx7d-sdb.dts file so that VLDO4 provides 2.8V for MIPI CSI/DSI mindentropy
2017-06-28 17:45 ` mindentropy
2017-06-28 20:19 ` Fabio Estevam
2017-06-28 20:19   ` Fabio Estevam
2017-06-28 20:19   ` Fabio Estevam
2017-07-01  7:39   ` [PATCH v2] ARM: dts: imx7d-sdb: Set VLDO4 outpt to " mindentropy
2017-07-01  7:39     ` mindentropy
2017-07-01  7:39     ` mindentropy
2017-07-01 12:41     ` Fabio Estevam
2017-07-01 12:41       ` Fabio Estevam
2017-07-01 12:41       ` Fabio Estevam
2017-07-12  7:18     ` Shawn Guo
2017-07-12  7:18       ` Shawn Guo
2017-07-12  7:18       ` Shawn Guo

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