diff mbox series

[v1,11/14] arm64: dts: imx8mq-librem5: Remove dis_u3_susphy_quirk from usb_dwc3_0

Message ID 20230309204608.237605-12-martin.kepplinger@puri.sm (mailing list archive)
State New, archived
Headers show
Series arm64: dts: imx8mq-librem5: updates and fixes until march 2023 | expand

Commit Message

Martin Kepplinger March 9, 2023, 8:46 p.m. UTC
From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>

This reduces power consumption in system suspend by about 10%.

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 1 -
 1 file changed, 1 deletion(-)

Comments

Shawn Guo March 14, 2023, 7:28 a.m. UTC | #1
On Thu, Mar 09, 2023 at 09:46:05PM +0100, Martin Kepplinger wrote:
> From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
> 
> This reduces power consumption in system suspend by about 10%.

Is there any other impact than this nice power gain?  Otherwise,
I would wonder why the quirk was enabled in the first place.

Shawn

> 
> Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
> Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
> ---
>  arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
> index 0b4b49fa1392a..f557632f574fa 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
> @@ -1322,7 +1322,6 @@ &usb_dwc3_0 {
>  	#address-cells = <1>;
>  	#size-cells = <0>;
>  	dr_mode = "otg";
> -	snps,dis_u3_susphy_quirk;
>  	usb-role-switch;
>  	status = "okay";
>  
> -- 
> 2.30.2
>
Angus Ainslie March 15, 2023, 12:30 p.m. UTC | #2
Hi Shawn,

On 2023-03-14 00:28, Shawn Guo wrote:
> On Thu, Mar 09, 2023 at 09:46:05PM +0100, Martin Kepplinger wrote:
>> From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
>> 
>> This reduces power consumption in system suspend by about 10%.
> 
> Is there any other impact than this nice power gain?  Otherwise,
> I would wonder why the quirk was enabled in the first place.
> 

This comes from the early days of board bring-up and IIRC it seemed to 
stabilize flashing using the mfgtools over USB. Whatever gremlin was in 
those early boards is long gone and this is no longer needed.

Cheers
Angus

> Shawn
> 
>> 
>> Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
>> Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
>> ---
>>  arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 1 -
>>  1 file changed, 1 deletion(-)
>> 
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi 
>> b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
>> index 0b4b49fa1392a..f557632f574fa 100644
>> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
>> @@ -1322,7 +1322,6 @@ &usb_dwc3_0 {
>>  	#address-cells = <1>;
>>  	#size-cells = <0>;
>>  	dr_mode = "otg";
>> -	snps,dis_u3_susphy_quirk;
>>  	usb-role-switch;
>>  	status = "okay";
>> 
>> --
>> 2.30.2
>>
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 0b4b49fa1392a..f557632f574fa 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -1322,7 +1322,6 @@  &usb_dwc3_0 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 	dr_mode = "otg";
-	snps,dis_u3_susphy_quirk;
 	usb-role-switch;
 	status = "okay";