* [PATCH] Modified imx7d-sdb.dts file so that VLDO4 provides 2.8V for MIPI CSI/DSI
@ 2017-06-28 17:45 mindentropy
[not found] ` <20170628174518.5950-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
0 siblings, 1 reply; 5+ messages in thread
From: mindentropy @ 2017-06-28 17:45 UTC (permalink / raw)
To: festevam-Re5JQEeQqe8AvxtiuMwx3w
Cc: mindentropy-Re5JQEeQqe8AvxtiuMwx3w, Shawn Guo, Sascha Hauer,
Fabio Estevam, Rob Herring, Mark Rutland, Russell King,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
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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^ permalink raw reply related [flat|nested] 5+ messages in thread[parent not found: <20170628174518.5950-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]
* Re: [PATCH] Modified imx7d-sdb.dts file so that VLDO4 provides 2.8V for MIPI CSI/DSI [not found] ` <20170628174518.5950-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2017-06-28 20:19 ` Fabio Estevam [not found] ` <CAOMZO5A41QFoJsC2ST1kvpCOs3-unzHDrqXshHa=2ShWWCOyZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 0 siblings, 1 reply; 5+ messages in thread From: Fabio Estevam @ 2017-06-28 20:19 UTC (permalink / raw) To: mindentropy Cc: 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 Hi Gautam, On Wed, Jun 28, 2017 at 2:45 PM, mindentropy <mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > 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> Patch looks good, but the Subject could be improved to something like: ARM: dts: imx7d-sdb: Set LDO4 to 2.8V -- 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <CAOMZO5A41QFoJsC2ST1kvpCOs3-unzHDrqXshHa=2ShWWCOyZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>]
* [PATCH v2] ARM: dts: imx7d-sdb: Set VLDO4 outpt to 2.8V for MIPI CSI/DSI [not found] ` <CAOMZO5A41QFoJsC2ST1kvpCOs3-unzHDrqXshHa=2ShWWCOyZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> @ 2017-07-01 7:39 ` mindentropy [not found] ` <20170701073911.7338-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 0 siblings, 1 reply; 5+ messages in thread From: mindentropy @ 2017-07-01 7:39 UTC (permalink / raw) To: festevam-Re5JQEeQqe8AvxtiuMwx3w Cc: Gautam Bhat, Shawn Guo, Sascha Hauer, Fabio Estevam, Rob Herring, Mark Rutland, Russell King, moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list 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> --- Changes in v2: - Added subject line according to convention 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 ^ permalink raw reply related [flat|nested] 5+ messages in thread
[parent not found: <20170701073911.7338-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]
* Re: [PATCH v2] ARM: dts: imx7d-sdb: Set VLDO4 outpt to 2.8V for MIPI CSI/DSI [not found] ` <20170701073911.7338-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2017-07-01 12:41 ` Fabio Estevam 2017-07-12 7:18 ` Shawn Guo 1 sibling, 0 replies; 5+ messages in thread From: Fabio Estevam @ 2017-07-01 12:41 UTC (permalink / raw) To: mindentropy Cc: Shawn Guo, Sascha Hauer, Fabio Estevam, Rob Herring, Mark Rutland, Russell King, moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list On Sat, Jul 1, 2017 at 4:39 AM, mindentropy <mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > 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> Reviewed-by: Fabio Estevam <fabio.estevam-3arQi8VN3Tc@public.gmane.org> -- 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] ARM: dts: imx7d-sdb: Set VLDO4 outpt to 2.8V for MIPI CSI/DSI [not found] ` <20170701073911.7338-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2017-07-01 12:41 ` Fabio Estevam @ 2017-07-12 7:18 ` Shawn Guo 1 sibling, 0 replies; 5+ messages in thread From: Shawn Guo @ 2017-07-12 7:18 UTC (permalink / raw) To: mindentropy Cc: festevam-Re5JQEeQqe8AvxtiuMwx3w, Sascha Hauer, Fabio Estevam, Rob Herring, Mark Rutland, Russell King, moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list On Sat, Jul 01, 2017 at 01:09:11PM +0530, mindentropy wrote: > 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. For such single paragraph commit log, the bullet and indentation are not really necessary. I edited it a bit and apply the patch. Thanks. Shawn > > Signed-off-by: Gautam Bhat <mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> > --- > Changes in v2: > - Added subject line according to convention > > 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
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2017-06-28 17:45 [PATCH] Modified imx7d-sdb.dts file so that VLDO4 provides 2.8V for MIPI CSI/DSI mindentropy
[not found] ` <20170628174518.5950-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-06-28 20:19 ` Fabio Estevam
[not found] ` <CAOMZO5A41QFoJsC2ST1kvpCOs3-unzHDrqXshHa=2ShWWCOyZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-07-01 7:39 ` [PATCH v2] ARM: dts: imx7d-sdb: Set VLDO4 outpt to " mindentropy
[not found] ` <20170701073911.7338-1-mindentropy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-07-01 12:41 ` Fabio Estevam
2017-07-12 7:18 ` Shawn Guo
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