Re: [PATCH v2] ARM: dts: qcom: msm8974: correct qfprom node size

From: Konrad Dybcio
Date: Thu Jun 15 2023 - 14:20:51 EST


On 15.06.2023 20:17, Luca Weiss wrote:
> From: Craig Tatlor <ctatlor97@xxxxxxxxx>
>
> The qfprom actually has size 0x3000, so adjust the reg.
>
> Note that the non-ECC-corrected qfprom can be found at 0xfc4b8000
> (-0x4000). The current reg points to the ECC-corrected qfprom block
> which should have equivalent values at all offsets compared to the
> non-corrected version.
>
> [luca@xxxxxxxxx: extract to standalone patch and adjust for review
> comments]
>
> Fixes: c59ffb519357 ("arm: dts: msm8974: Add thermal zones, tsens and qfprom nodes")
> Signed-off-by: Craig Tatlor <ctatlor97@xxxxxxxxx>
> Signed-off-by: Luca Weiss <luca@xxxxxxxxx>
> ---
Not sure of the actual size of the region, maybe Bjorn can help..

Downstream 3.10 suggests 0x60F0, 0x20F0 after adjusting for the ECC offset

Konrad
> Changes in v2:
> - Keep base offset but expand reg from 0x1000 to 0x3000 (Konrad)
> - Link to v1: https://lore.kernel.org/r/20230130-msm8974-qfprom-v1-1-975aa0e5e083@xxxxxxxxx
> ---
> arch/arm/boot/dts/qcom-msm8974.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
> index 7ed0d925a4e9..3156fe25967f 100644
> --- a/arch/arm/boot/dts/qcom-msm8974.dtsi
> +++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
> @@ -1194,7 +1194,7 @@ restart@fc4ab000 {
>
> qfprom: qfprom@fc4bc000 {
> compatible = "qcom,msm8974-qfprom", "qcom,qfprom";
> - reg = <0xfc4bc000 0x1000>;
> + reg = <0xfc4bc000 0x3000>;
> #address-cells = <1>;
> #size-cells = <1>;
>
>
> ---
> base-commit: 858fd168a95c5b9669aac8db6c14a9aeab446375
> change-id: 20230130-msm8974-qfprom-619c0e8f26eb
>
> Best regards,