linux-kernel - Re: [PATCH RESEND] arm64: dts: meson-sm1-bananapi-m5: fix wrong GPIO pin labeling for CON1

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Date:   Mon, 11 Apr 2022 16:20:38 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Guillaume Giraudon <ggiraudon@...sm19.com>, kernel-dev@...sm19.com
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND] arm64: dts: meson-sm1-bananapi-m5: fix wrong GPIO
 pin labeling for CON1

Hi,

On 11/04/2022 16:04, Guillaume Giraudon wrote:
> The labels for lines 61 through 84 on the periphs-banks were offset by 2.
> Realigned them to match the Banana Pi M5 schematics.
> 
> Fixes: 976e920183e4 ("arm64: dts: meson-sm1: add Banana PI BPI-M5 board dts")
> 
> Signed-off-by: Guillaume Giraudon <ggiraudon@...sm19.com>
> ---
>   arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts
> index 5751c48620ed..754c3d43ef0b 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts
> @@ -448,7 +448,7 @@
>   		"",
>   		/* GPIOA */
>   		"", "", "", "", "", "", "", "",
> -		"", "", "", "", "", "",
> +		"", "", "", "", "", "", "", "",
>   		"CON1-P27", /* GPIOA_14 */
>   		"CON1-P28", /* GPIOA_15 */
>   		/* GPIOX */

While reviewing more closely I figured that in fact the issue comes
from the :
		/* BOOT */
		"eMMC_D0", /* BOOT_0 */
		"eMMC_D1", /* BOOT_1 */
		"eMMC_D2", /* BOOT_2 */
		"eMMC_D3", /* BOOT_3 */
		"eMMC_D4", /* BOOT_4 */
		"eMMC_D5", /* BOOT_5 */
		"eMMC_D6", /* BOOT_6 */
		"eMMC_D7", /* BOOT_7 */
		"eMMC_CLK", /* BOOT_8 */
		"",
		"eMMC_CMD", /* BOOT_10 */
		"",
		"eMMC_RST#", /* BOOT_12 */
		"eMMC_DS", /* BOOT_13 */
		/* GPIOC */


it contains 14 entries, but there is 16 BOOT gpio lines.

So instead, send a V2 with 2 entries added in BOOT and leave the GPIOA entries as-is.

Thanks,
Neil