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Message-ID: <1ad4d35e-ad82-eb2f-5aea-882fcae2cac5@quicinc.com>
Date:   Tue, 13 Dec 2022 10:36:13 +0530
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Subject: Re: [PATCH v2 05/13] arm64: dts: qcom: sc7280: Fix the base addresses
 of LLCC banks
To:     Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
        <andersson@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <bp@alien8.de>,
        <tony.luck@intel.com>
CC:     <konrad.dybcio@linaro.org>, <linux-arm-msm@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <james.morse@arm.com>,
        <mchehab@kernel.org>, <rric@kernel.org>,
        <linux-edac@vger.kernel.org>, <quic_ppareek@quicinc.com>,
        <luca.weiss@fairphone.com>, <stable@vger.kernel.org>
References: <20221212123311.146261-1-manivannan.sadhasivam@linaro.org>
 <20221212123311.146261-6-manivannan.sadhasivam@linaro.org>
From:   Sai Prakash Ranjan <quic_saipraka@quicinc.com>
In-Reply-To: <20221212123311.146261-6-manivannan.sadhasivam@linaro.org>
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On 12/12/2022 6:03 PM, Manivannan Sadhasivam wrote:
> The LLCC block has several banks each with a different base address
> and holes in between. So it is not a correct approach to cover these
> banks with a single offset/size. Instead, the individual bank's base
> address needs to be specified in devicetree with the exact size.
> 
> While at it, let's also fix the size of the llcc_broadcast_base to cover
> the whole region.
> 
> Also, let's get rid of reg-names property as it is not needed anymore.
> The driver is expected to parse the reg field based on index to get the
> addresses of each LLCC banks.
> 
> Cc: <stable@vger.kernel.org> # 5.13
> Fixes: 0392968dbe09 ("arm64: dts: qcom: sc7280: Add device tree node for LLCC")
> Reported-by: Parikshit Pareek <quic_ppareek@quicinc.com>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>   arch/arm64/boot/dts/qcom/sc7280.dtsi | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 0adf13399e64..90e11cbbaf88 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -3579,8 +3579,8 @@ gem_noc: interconnect@9100000 {
>   
>   		system-cache-controller@9200000 {
>   			compatible = "qcom,sc7280-llcc";
> -			reg = <0 0x09200000 0 0xd0000>, <0 0x09600000 0 0x50000>;
> -			reg-names = "llcc_base", "llcc_broadcast_base";
> +			reg = <0 0x09200000 0 0x58000>, <0 0x09280000 0 0x58000>,
> +			      <0 0x09600000 0 0x58000>;
>   			interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>;
>   		};
>   

Reviewed-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>