* [PATCH RESEND] ARM: dts: imx28-evk: Let i2c0 run at 100kHz
@ 2014-10-20 13:08 Fabio Estevam
2014-10-25 12:09 ` Shawn Guo
0 siblings, 1 reply; 2+ messages in thread
From: Fabio Estevam @ 2014-10-20 13:08 UTC (permalink / raw)
To: linux-arm-kernel
Commit 78b81f4666fb ("ARM: dts: imx28-evk: Run I2C0 at 400kHz") caused issues
when doing the following sequence in loop:
- Boot the kernel
- Perform audio playback
- Reboot the system via 'reboot' command
In many times the audio card cannot be probed, which causes playback to fail.
After restoring to the original i2c0 frequency of 100kHz there is no such
problem anymore.
This reverts commit 78b81f4666fbb22a20b1e63e5baf197ad2e90e88.
Cc: <stable@vger.kernel.org> # 3.16+
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
arch/arm/boot/dts/imx28-evk.dts | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index e4cc44c..41a9834 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -193,7 +193,6 @@
i2c0: i2c at 80058000 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
- clock-frequency = <400000>;
status = "okay";
sgtl5000: codec at 0a {
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH RESEND] ARM: dts: imx28-evk: Let i2c0 run at 100kHz
2014-10-20 13:08 [PATCH RESEND] ARM: dts: imx28-evk: Let i2c0 run at 100kHz Fabio Estevam
@ 2014-10-25 12:09 ` Shawn Guo
0 siblings, 0 replies; 2+ messages in thread
From: Shawn Guo @ 2014-10-25 12:09 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Oct 20, 2014 at 11:08:01AM -0200, Fabio Estevam wrote:
> Commit 78b81f4666fb ("ARM: dts: imx28-evk: Run I2C0 at 400kHz") caused issues
> when doing the following sequence in loop:
>
> - Boot the kernel
> - Perform audio playback
> - Reboot the system via 'reboot' command
>
> In many times the audio card cannot be probed, which causes playback to fail.
>
> After restoring to the original i2c0 frequency of 100kHz there is no such
> problem anymore.
>
> This reverts commit 78b81f4666fbb22a20b1e63e5baf197ad2e90e88.
>
> Cc: <stable@vger.kernel.org> # 3.16+
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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