linux-kernel - Re: [PATCH] arm64: dts: ti: k3-j784s4-evm: Correct Pin mux offset for ospi

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Message-ID: <20230801201811.sxf5zsbawpdfvvjf@exquisite>
Date:   Tue, 1 Aug 2023 15:18:11 -0500
From:   Nishanth Menon <nm@...com>
To:     Udit Kumar <u-kumar1@...com>
CC:     <vigneshr@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <t-konduru@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <vaishnav.a@...com>
Subject: Re: [PATCH] arm64: dts: ti: k3-j784s4-evm: Correct Pin mux offset
 for ospi

On 19:49-20230801, Udit Kumar wrote:
> After splitting wkup_pmx pin mux for J784S4 into four regions.
> Pin mux offset for OSPI nodes were not updated to align with new
> regions, due to this while setting ospi pin muxes out of range
> error was seen.
> 
> Pin mux offsets for OSPI nodes are corrected in this patch.
> 
> Fixes: 14462bd0b247 ("arm64: dts: ti: k3-j784s4: Fix wakeup pinmux range and pinctrl node offsets")

I think the rename of pinnodes will get in the way of the automatic
fixup in stable flow.

> Signed-off-by: Udit Kumar <u-kumar1@...com>
> ---
> Original test log
> https://gist.github.com/uditkumarti/85b5076df99c3019aa56da4268724295
> line 1104 and 1107, out of range error is seen
> 
> Test log with patch
> https://gist.github.com/uditkumarti/29b424d0a1527e77947f72d2e8a38f01
> 
>  arch/arm64/boot/dts/ti/k3-j784s4-evm.dts | 31 +++++++++++++++---------
>  1 file changed, 19 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
> index 7ad152a1b90f..1961cd819f5e 100644
> --- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
> @@ -379,21 +379,28 @@ J784S4_WKUP_IOPAD(0x020, PIN_INPUT, 0) /* (D34) MCU_OSPI0_D5 */
>  			J784S4_WKUP_IOPAD(0x024, PIN_INPUT, 0) /* (E34) MCU_OSPI0_D6 */
>  			J784S4_WKUP_IOPAD(0x028, PIN_INPUT, 0) /* (E33) MCU_OSPI0_D7 */
>  			J784S4_WKUP_IOPAD(0x008, PIN_INPUT, 0) /* (C34) MCU_OSPI0_DQS */
> -			J784S4_WKUP_IOPAD(0x03c, PIN_OUTPUT, 6) /* (C32) MCU_OSPI0_CSn3.MCU_OSPI0_ECC_FAIL */
> -			J784S4_WKUP_IOPAD(0x038, PIN_OUTPUT, 6) /* (B34) MCU_OSPI0_CSn2.MCU_OSPI0_RESET_OUT0 */
> +		>;
> +	};
> +};
> +
> +&wkup_pmx1 {
> +	mcu_fss0_ospi0_pins1_default: mcu-fss0-ospi0-default-pins1 {
                                                               ^^^
and below:
> +		pinctrl-single,pins = <
> +			J784S4_WKUP_IOPAD(0x004, PIN_OUTPUT, 6) /* (C32) MCU_OSPI0_ECC_FAIL */
> +			J784S4_WKUP_IOPAD(0x000, PIN_OUTPUT, 6) /* (B34) MCU_OSPI0_RESET_OUT0 */
>  		>;
>  	};
>  
> -	mcu_fss0_ospi1_pins_default: mcu-fss0-ospi1-default-pins {
> +	mcu_fss0_ospi1_pins_default: mcu-fss0-ospi1-pins-default {

Please run your check against https://lore.kernel.org/all/20230721082654.27036-1-tony@atomide.com/

>  		pinctrl-single,pins = <
> -			J784S4_WKUP_IOPAD(0x040, PIN_OUTPUT, 0) /* (F32) MCU_OSPI1_CLK */
> -			J784S4_WKUP_IOPAD(0x05c, PIN_OUTPUT, 0) /* (G32) MCU_OSPI1_CSn0 */
> -			J784S4_WKUP_IOPAD(0x04c, PIN_INPUT, 0) /* (E35) MCU_OSPI1_D0 */
> -			J784S4_WKUP_IOPAD(0x050, PIN_INPUT, 0) /* (D31) MCU_OSPI1_D1 */
> -			J784S4_WKUP_IOPAD(0x054, PIN_INPUT, 0) /* (G31) MCU_OSPI1_D2 */
> -			J784S4_WKUP_IOPAD(0x058, PIN_INPUT, 0) /* (F33) MCU_OSPI1_D3 */
> -			J784S4_WKUP_IOPAD(0x048, PIN_INPUT, 0) /* (F31) MCU_OSPI1_DQS */
> -			J784S4_WKUP_IOPAD(0x044, PIN_INPUT, 0) /* (C31) MCU_OSPI1_LBCLKO */
> +			J784S4_WKUP_IOPAD(0x008, PIN_OUTPUT, 0) /* (F32) MCU_OSPI1_CLK */
> +			J784S4_WKUP_IOPAD(0x024, PIN_OUTPUT, 0) /* (G32) MCU_OSPI1_CSn0 */
> +			J784S4_WKUP_IOPAD(0x014, PIN_INPUT, 0) /* (E35) MCU_OSPI1_D0 */
> +			J784S4_WKUP_IOPAD(0x018, PIN_INPUT, 0) /* (D31) MCU_OSPI1_D1 */
> +			J784S4_WKUP_IOPAD(0x01C, PIN_INPUT, 0) /* (G31) MCU_OSPI1_D2 */
> +			J784S4_WKUP_IOPAD(0x020, PIN_INPUT, 0) /* (F33) MCU_OSPI1_D3 */
> +			J784S4_WKUP_IOPAD(0x010, PIN_INPUT, 0) /* (F31) MCU_OSPI1_DQS */
> +			J784S4_WKUP_IOPAD(0x00C, PIN_INPUT, 0) /* (C31) MCU_OSPI1_LBCLKO */
>  		>;
>  	};
>  };
> @@ -437,7 +444,7 @@ &fss {
>  &ospi0 {
>  	status = "okay";
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
> +	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>, <&mcu_fss0_ospi0_pins1_default>;
>  
>  	flash@0 {
>  		compatible = "jedec,spi-nor";
> -- 
> 2.34.1
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D