[PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

[PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

[Ondrej Jirman]

Voltage constraints on vccio_sd are invalid. They don't match the voltages
that LDO9 can generate, and this causes rk808-regulator driver to fail
to probe with -EINVAL when it tries to apply the constraints during boot.

Fix the constraints to something that LDO9 can be actually configured for.

Fixes: 78a21c7d5952 ("arm64: dts: rockchip: Add initial support for Pine64 PinePhone Pro")
Signed-off-by: Ondrej Jirman <megi@xff.cz>
---
 arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index f00c80361377a..2e058c3150256 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -253,8 +253,8 @@ regulator-state-mem {
 
 			vccio_sd: LDO_REG9 {
 				regulator-name = "vccio_sd";
-				regulator-min-microvolt = <1710000>;
-				regulator-max-microvolt = <3150000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
 			};
 
 			vcc3v3_s0: SWITCH_REG {
-- 
2.37.3


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

Re: [PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

[Caleb Connolly]

On 05/09/2022 00:36, Ondrej Jirman wrote:
> Voltage constraints on vccio_sd are invalid. They don't match the voltages
> that LDO9 can generate, and this causes rk808-regulator driver to fail
> to probe with -EINVAL when it tries to apply the constraints during boot.
> 
> Fix the constraints to something that LDO9 can be actually configured for.
> 
> Fixes: 78a21c7d5952 ("arm64: dts: rockchip: Add initial support for Pine64 PinePhone Pro")
> Signed-off-by: Ondrej Jirman <megi@xff.cz>

Reviewed-by: Caleb Connolly <kc@postmarketos.org>
> ---
>   arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
> index f00c80361377a..2e058c3150256 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
> @@ -253,8 +253,8 @@ regulator-state-mem {
>   
>   			vccio_sd: LDO_REG9 {
>   				regulator-name = "vccio_sd";
> -				regulator-min-microvolt = <1710000>;
> -				regulator-max-microvolt = <3150000>;
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;
>   			};
>   
>   			vcc3v3_s0: SWITCH_REG {

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

Re: [PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

[Tom Fitzhenry]

On 5/9/22 09:36, Ondrej Jirman wrote:
> Voltage constraints on vccio_sd are invalid. They don't match the voltages
> that LDO9 can generate, and this causes rk808-regulator driver to fail
> to probe with -EINVAL when it tries to apply the constraints during boot.

On most boots, the SD card probe succeeds, and is able to be mounted.

On some boots, however, I observe this bug with error message:

vccio_sd: failed to apply 3150000-3150000uV constraint: -EINVAL

> 
> Fix the constraints to something that LDO9 can be actually configured for.
> 
> Fixes: 78a21c7d5952 ("arm64: dts: rockchip: Add initial support for Pine64 PinePhone Pro")
> Signed-off-by: Ondrej Jirman <megi@xff.cz>

Reviewed-by: Tom Fitzhenry <tom@tom-fitzhenry.me.uk>
Tested-by: Tom Fitzhenry <tom@tom-fitzhenry.me.uk>

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

Re: [PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

[Heiko Stuebner]

On Mon, 5 Sep 2022 01:36:47 +0200, Ondrej Jirman wrote:
> Voltage constraints on vccio_sd are invalid. They don't match the voltages
> that LDO9 can generate, and this causes rk808-regulator driver to fail
> to probe with -EINVAL when it tries to apply the constraints during boot.
> 
> Fix the constraints to something that LDO9 can be actually configured for.

Applied, thanks!

[1/1] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro
      commit: 024744964ef6c0a65e348afafd4e1feae08eba5e

Best regards,
-- 
Heiko Stuebner <heiko@sntech.de>

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

Re: [PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

[Nícolas F. R. A. Prado]

On Mon, Sep 05, 2022 at 01:36:47AM +0200, Ondrej Jirman wrote:
> Voltage constraints on vccio_sd are invalid. They don't match the voltages
> that LDO9 can generate, and this causes rk808-regulator driver to fail
> to probe with -EINVAL when it tries to apply the constraints during boot.
> 
> Fix the constraints to something that LDO9 can be actually configured for.
> 
> Fixes: 78a21c7d5952 ("arm64: dts: rockchip: Add initial support for Pine64 PinePhone Pro")
> Signed-off-by: Ondrej Jirman <megi@xff.cz>
> ---
>  arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
> index f00c80361377a..2e058c3150256 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
> @@ -253,8 +253,8 @@ regulator-state-mem {
>  
>  			vccio_sd: LDO_REG9 {
>  				regulator-name = "vccio_sd";
> -				regulator-min-microvolt = <1710000>;
> -				regulator-max-microvolt = <3150000>;
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <3300000>;

Shouldn't the maximum be 3.1V? The SDMMC0_VDD pin on RK3399 that this regulator
is connected to expects a maximum voltage of 3.15V, so 3.3V would be too high.
The output voltage for LDO9 is configured in 100mV steps, so I imagine that's
why 3.15V fails, but 3.1V should work fine. I haven't tested yet though.

Thanks,
Nícolas

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip