[PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz

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* [PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz
@ 2014-09-03 18:46 ` Nishanth Menon
  0 siblings, 0 replies; 6+ messages in thread
From: Nishanth Menon @ 2014-09-03 18:46 UTC (permalink / raw)
  To: Benoît Cousson, Tony Lindgren
  Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA, Nishanth Menon

On the GP EVM, the ambient light sensor is limited to 100KHz on the
I2C bus.

So use 100kHz for I2C on the GP EVM due to this limitation on the
ambient light sensor.

Reported-by: Aparna Balasubramanian <aparnab-l0cyMroinI0@public.gmane.org>
Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
---
based on v3.17-rc1

 arch/arm/boot/dts/am437x-gp-evm.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 646a6ea..9559c19 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -260,7 +260,7 @@
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;
-	clock-frequency = <400000>;
+	clock-frequency = <100000>;
 
 	tps65218: tps65218@24 {
 		reg = <0x24>;
-- 
1.7.9.5

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^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz
@ 2014-09-03 18:46 ` Nishanth Menon
  0 siblings, 0 replies; 6+ messages in thread
From: Nishanth Menon @ 2014-09-03 18:46 UTC (permalink / raw)
  To: Benoît Cousson, Tony Lindgren
  Cc: linux-omap, devicetree, linux-arm-kernel, linux-kernel,
	Nishanth Menon

On the GP EVM, the ambient light sensor is limited to 100KHz on the
I2C bus.

So use 100kHz for I2C on the GP EVM due to this limitation on the
ambient light sensor.

Reported-by: Aparna Balasubramanian <aparnab@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
---
based on v3.17-rc1

 arch/arm/boot/dts/am437x-gp-evm.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 646a6ea..9559c19 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -260,7 +260,7 @@
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;
-	clock-frequency = <400000>;
+	clock-frequency = <100000>;
 
 	tps65218: tps65218@24 {
 		reg = <0x24>;
-- 
1.7.9.5


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz
@ 2014-09-03 18:46 ` Nishanth Menon
  0 siblings, 0 replies; 6+ messages in thread
From: Nishanth Menon @ 2014-09-03 18:46 UTC (permalink / raw)
  To: linux-arm-kernel

On the GP EVM, the ambient light sensor is limited to 100KHz on the
I2C bus.

So use 100kHz for I2C on the GP EVM due to this limitation on the
ambient light sensor.

Reported-by: Aparna Balasubramanian <aparnab@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
---
based on v3.17-rc1

 arch/arm/boot/dts/am437x-gp-evm.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 646a6ea..9559c19 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -260,7 +260,7 @@
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;
-	clock-frequency = <400000>;
+	clock-frequency = <100000>;
 
 	tps65218: tps65218 at 24 {
 		reg = <0x24>;
-- 
1.7.9.5

^ permalink raw reply related	[flat|nested] 6+ messages in thread

[parent not found: <1409769981-17669-1-git-send-email-nm-l0cyMroinI0@public.gmane.org>]

* Re: [PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz
  2014-09-03 18:46 ` Nishanth Menon
  (?)
@ 2014-09-03 21:47     ` Tony Lindgren
  -1 siblings, 0 replies; 6+ messages in thread
From: Tony Lindgren @ 2014-09-03 21:47 UTC (permalink / raw)
  To: Nishanth Menon
  Cc: Benoît Cousson, linux-omap-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA

* Nishanth Menon <nm-l0cyMroinI0@public.gmane.org> [140903 11:46]:
> On the GP EVM, the ambient light sensor is limited to 100KHz on the
> I2C bus.
> 
> So use 100kHz for I2C on the GP EVM due to this limitation on the
> ambient light sensor.
> 
> Reported-by: Aparna Balasubramanian <aparnab-l0cyMroinI0@public.gmane.org>
> Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>

Thanks applying into omap-for-v3.7/fixes-v2.

Tony
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To unsubscribe from this list: send the line "unsubscribe devicetree" in
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz
@ 2014-09-03 21:47     ` Tony Lindgren
  0 siblings, 0 replies; 6+ messages in thread
From: Tony Lindgren @ 2014-09-03 21:47 UTC (permalink / raw)
  To: Nishanth Menon
  Cc: Benoît Cousson, linux-omap, devicetree, linux-arm-kernel,
	linux-kernel

* Nishanth Menon <nm@ti.com> [140903 11:46]:
> On the GP EVM, the ambient light sensor is limited to 100KHz on the
> I2C bus.
> 
> So use 100kHz for I2C on the GP EVM due to this limitation on the
> ambient light sensor.
> 
> Reported-by: Aparna Balasubramanian <aparnab@ti.com>
> Signed-off-by: Nishanth Menon <nm@ti.com>

Thanks applying into omap-for-v3.7/fixes-v2.

Tony

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz
@ 2014-09-03 21:47     ` Tony Lindgren
  0 siblings, 0 replies; 6+ messages in thread
From: Tony Lindgren @ 2014-09-03 21:47 UTC (permalink / raw)
  To: linux-arm-kernel

* Nishanth Menon <nm@ti.com> [140903 11:46]:
> On the GP EVM, the ambient light sensor is limited to 100KHz on the
> I2C bus.
> 
> So use 100kHz for I2C on the GP EVM due to this limitation on the
> ambient light sensor.
> 
> Reported-by: Aparna Balasubramanian <aparnab@ti.com>
> Signed-off-by: Nishanth Menon <nm@ti.com>

Thanks applying into omap-for-v3.7/fixes-v2.

Tony

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-09-03 21:47 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-09-03 18:46 [PATCH] ARM: dts: am437x-gp: switch i2c0 to 100KHz Nishanth Menon
2014-09-03 18:46 ` Nishanth Menon
2014-09-03 18:46 ` Nishanth Menon
     [not found] ` <1409769981-17669-1-git-send-email-nm-l0cyMroinI0@public.gmane.org>
2014-09-03 21:47   ` Tony Lindgren
2014-09-03 21:47     ` Tony Lindgren
2014-09-03 21:47     ` Tony Lindgren

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