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Date:   Thu, 22 Jul 2021 19:06:28 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     Vinod Koul <vkoul@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh@...nel.org>, linuxarm@...wei.com,
        mauro.chehab@...wei.com,
        Krzysztof WilczyƄski <kw@...ux.com>,
        Binghui Wang <wangbinghui@...ilicon.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Wei Xu <xuwei5@...ilicon.com>,
        Xiaowei Song <songxiaowei@...ilicon.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH v7 08/10] arm64: dts: HiSilicon: Add support for HiKey
 970 PCIe controller hardware

On Wed, Jul 21, 2021 at 10:39:10AM +0200, Mauro Carvalho Chehab wrote:
> From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> 
> Add DTS bindings for the HiKey 970 board's PCIe hardware.
> 
> Co-developed-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
> ---
>  arch/arm64/boot/dts/hisilicon/hi3670.dtsi     | 71 +++++++++++++++++++
>  .../boot/dts/hisilicon/hikey970-pmic.dtsi     |  1 -
>  drivers/pci/controller/dwc/pcie-kirin.c       | 12 ----
>  3 files changed, 71 insertions(+), 13 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3670.dtsi b/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
> index 1f228612192c..6dfcfcfeedae 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
> @@ -177,6 +177,12 @@ sctrl: sctrl@...0a000 {
>  			#clock-cells = <1>;
>  		};
>  
> +		pmctrl: pmctrl@...31000 {
> +			compatible = "hisilicon,hi3670-pmctrl", "syscon";
> +			reg = <0x0 0xfff31000 0x0 0x1000>;
> +			#clock-cells = <1>;
> +		};
> +

Irrelevant change to this patch.

>  		iomcu: iomcu@...7e000 {
>  			compatible = "hisilicon,hi3670-iomcu", "syscon";
>  			reg = <0x0 0xffd7e000 0x0 0x1000>;
> @@ -660,6 +666,71 @@ gpio28: gpio@...1d000 {
>  			clock-names = "apb_pclk";
>  		};
>  

[...]

> +			#interrupt-cells = <1>;
> +			interrupts = <0 283 4>;

Use the DT flag for interrupts instead of hardcoded value

> +			interrupt-names = "msi";
> +			interrupt-map-mask = <0 0 0 7>;
> +			interrupt-map = <0x0 0 0 1
> +					 &gic GIC_SPI 282 IRQ_TYPE_LEVEL_HIGH>,
> +					<0x0 0 0 2
> +					 &gic GIC_SPI 283 IRQ_TYPE_LEVEL_HIGH>,
> +					<0x0 0 0 3
> +					 &gic GIC_SPI 284 IRQ_TYPE_LEVEL_HIGH>,
> +					<0x0 0 0 4
> +					 &gic GIC_SPI 285 IRQ_TYPE_LEVEL_HIGH>;
> +		};
> +
>  		/* UFS */
>  		ufs: ufs@...c0000 {
>  			compatible = "hisilicon,hi3670-ufs", "jedec,ufs-2.1";
> diff --git a/arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi b/arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi
> index 48c739eacba0..03452e627641 100644
> --- a/arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hikey970-pmic.dtsi
> @@ -73,7 +73,6 @@ ldo33: LDO33 { /* PEX8606 */
>  					regulator-name = "ldo33";
>  					regulator-min-microvolt = <2500000>;
>  					regulator-max-microvolt = <3300000>;
> -					regulator-boot-on;

Again, irrelevant.

>  				};
>  
>  				ldo34: LDO34 { /* GPS AUX IN VDD */
> diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
> index bfc0513f7b15..9dad14929538 100644
> --- a/drivers/pci/controller/dwc/pcie-kirin.c
> +++ b/drivers/pci/controller/dwc/pcie-kirin.c
> @@ -347,18 +347,6 @@ static const struct regmap_config pcie_kirin_regmap_conf = {
>  	.reg_stride = 4,
>  };
>  
> -/* Registers in PCIeCTRL */
> -static inline void kirin_apb_ctrl_writel(struct kirin_pcie *kirin_pcie,
> -					 u32 val, u32 reg)
> -{
> -	writel(val, kirin_pcie->apb_base + reg);
> -}
> -
> -static inline u32 kirin_apb_ctrl_readl(struct kirin_pcie *kirin_pcie, u32 reg)
> -{
> -	return readl(kirin_pcie->apb_base + reg);
> -}
> -

Same here...

Thanks,
Mani

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