linux-kernel - Re: [PATCH] arm64: dts: qcom: sm8[56]50: Fix SPMI channels size

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Message-ID: <ZdXyZV0t+7QUvwG0@linaro.org>
Date: Wed, 21 Feb 2024 14:53:57 +0200
From: Abel Vesa <abel.vesa@...aro.org>
To: neil.armstrong@...aro.org
Cc: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sm8[56]50: Fix SPMI channels size

On 24-02-21 13:52:12, neil.armstrong@...aro.org wrote:
> Hi,
> 
> On 20/02/2024 18:04, Abel Vesa wrote:
> > The actual size of the channels registers region is 4MB, according to the
> > documentation. This issue was not caught until now because the driver was
> > supposed to allow same regions being mapped multiple times for supporting
> > multiple buses. Thie driver is using platform_get_resource_byname() and
> > devm_ioremap() towards that purpose, which intentionally avoids
> > devm_request_mem_region() altogether.
> > 
> > Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> > ---
> >   arch/arm64/boot/dts/qcom/sm8550.dtsi | 2 +-
> >   arch/arm64/boot/dts/qcom/sm8650.dtsi | 2 +-
> >   2 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> > index 7474cddf7ad3..3904348075f6 100644
> > --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> > @@ -3318,7 +3318,7 @@ sram@...0000 {
> >   		spmi_bus: spmi@...0000 {
> >   			compatible = "qcom,spmi-pmic-arb";
> >   			reg = <0 0x0c400000 0 0x3000>,
> > -			      <0 0x0c500000 0 0x4000000>,
> > +			      <0 0x0c500000 0 0x400000>,
> >   			      <0 0x0c440000 0 0x80000>,
> >   			      <0 0x0c4c0000 0 0x20000>,
> >   			      <0 0x0c42d000 0 0x4000>;
> > diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> > index d488b3b3265e..260eda81b743 100644
> > --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> > @@ -3747,7 +3747,7 @@ sram@...0000 {
> >   		spmi_bus: spmi@...0000 {
> >   			compatible = "qcom,spmi-pmic-arb";
> >   			reg = <0 0x0c400000 0 0x3000>,
> > -			      <0 0x0c500000 0 0x4000000>,
> > +			      <0 0x0c500000 0 0x400000>,
> >   			      <0 0x0c440000 0 0x80000>,
> >   			      <0 0x0c4c0000 0 0x20000>,
> >   			      <0 0x0c42d000 0 0x4000>;
> > 
> > ---
> > base-commit: 2d5c7b7eb345249cb34d42cbc2b97b4c57ea944e
> > change-id: 20240220-dts-qcom-sm8550-fix-spmi-chnls-size-b8e6323fecc0
> > 
> > Best regards,
> 
> I confirm the value, but I think you should split it in 2 and add Fixes tags
> 

Will split and re-send.

> Take my:
> Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
> if you re-spin.

Thanks.

> 
> Neil