Re: [PATCH 1/1] ARM: dts: imx6ul: fix PWM[1-4] interrupts

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Hello,

On 6/24/19 2:47 AM, Shawn Guo wrote:
> +Lothar
> 
> On Tue, Jun 18, 2019 at 05:58:34PM +0200, Sébastien Szymanski wrote:
>> According to the i.MX6UL/L RM, table 3.1 "ARM Cortex A7 domain interrupt
>> summary", the interrupts for the PWM[1-4] go from 83 to 86.
>>
>> Fixes: b9901fe84f02 ("ARM: dts: imx6ul: add pwm[1-4] nodes")
>> Signed-off-by: Sébastien Szymanski <sebastien.szymanski@xxxxxxxxxxxx>
> 
> Just curious - did you spot the error by testing PWM or merely by
> looking at the code and document?

I spotted the error when trying to play sound with PWM [1].
The PWM driver (drivers/pwm/pwm-imx27.c) don't use interrupt that's
probably why nobody notice this error.

[1] https://github.com/sasamy/imx-snd-pwm

Regards,

> 
> Shawn
> 
>> ---
>>  arch/arm/boot/dts/imx6ul.dtsi | 8 ++++----
>>  1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
>> index bbf010c73336..a7f6d1d58e20 100644
>> --- a/arch/arm/boot/dts/imx6ul.dtsi
>> +++ b/arch/arm/boot/dts/imx6ul.dtsi
>> @@ -358,7 +358,7 @@
>>  			pwm1: pwm@2080000 {
>>  				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
>>  				reg = <0x02080000 0x4000>;
>> -				interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
>> +				interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
>>  				clocks = <&clks IMX6UL_CLK_PWM1>,
>>  					 <&clks IMX6UL_CLK_PWM1>;
>>  				clock-names = "ipg", "per";
>> @@ -369,7 +369,7 @@
>>  			pwm2: pwm@2084000 {
>>  				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
>>  				reg = <0x02084000 0x4000>;
>> -				interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
>> +				interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
>>  				clocks = <&clks IMX6UL_CLK_PWM2>,
>>  					 <&clks IMX6UL_CLK_PWM2>;
>>  				clock-names = "ipg", "per";
>> @@ -380,7 +380,7 @@
>>  			pwm3: pwm@2088000 {
>>  				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
>>  				reg = <0x02088000 0x4000>;
>> -				interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
>> +				interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
>>  				clocks = <&clks IMX6UL_CLK_PWM3>,
>>  					 <&clks IMX6UL_CLK_PWM3>;
>>  				clock-names = "ipg", "per";
>> @@ -391,7 +391,7 @@
>>  			pwm4: pwm@208c000 {
>>  				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
>>  				reg = <0x0208c000 0x4000>;
>> -				interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
>> +				interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
>>  				clocks = <&clks IMX6UL_CLK_PWM4>,
>>  					 <&clks IMX6UL_CLK_PWM4>;
>>  				clock-names = "ipg", "per";
>> -- 
>> 2.21.0
>>


-- 
Sébastien Szymanski
Software engineer, Armadeus Systems
Tel: +33 (0)9 72 29 41 44
Fax: +33 (0)9 72 28 79 26



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