[PATCH v6 05/10] PCI: dw-rockchip: Add helper function for controller mode

[Shawn Lin]

在 2026/09/08 星期二 22:51, Sebastian Reichel 写道:
> Remove code duplication and improve readability by introducing a new
> function to setup the controller mode.
> 

Reviewed-by: Shawn Lin <shawn.lin at rock-chips.com>

> Signed-off-by: Sebastian Reichel <sebastian.reichel at collabora.com>
> ---
>   drivers/pci/controller/dwc/pcie-dw-rockchip.c | 15 +++++++--------
>   1 file changed, 7 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-dw-rockchip.c b/drivers/pci/controller/dwc/pcie-dw-rockchip.c
> index 6f84b07406d4..211776bbcb99 100644
> --- a/drivers/pci/controller/dwc/pcie-dw-rockchip.c
> +++ b/drivers/pci/controller/dwc/pcie-dw-rockchip.c
> @@ -708,6 +708,11 @@ static void rockchip_pcie_enable_enhanced_ltssm_control_mode(struct rockchip_pci
>   	rockchip_pcie_writel_apb(rockchip, val, PCIE_CLIENT_HOT_RESET_CTRL);
>   }
>   
> +static void rockchip_pcie_set_controller_mode(struct rockchip_pcie *rockchip, u32 mode)
> +{
> +	rockchip_pcie_writel_apb(rockchip, PCIE_CLIENT_SET_MODE(mode), PCIE_CLIENT_GENERAL_CON);
> +}
> +
>   static int rockchip_pcie_configure_rc(struct platform_device *pdev,
>   				      struct rockchip_pcie *rockchip)
>   {
> @@ -732,10 +737,7 @@ static int rockchip_pcie_configure_rc(struct platform_device *pdev,
>   	}
>   
>   	rockchip_pcie_enable_enhanced_ltssm_control_mode(rockchip, 0);
> -
> -	rockchip_pcie_writel_apb(rockchip,
> -				 PCIE_CLIENT_SET_MODE(PCIE_CLIENT_MODE_RC),
> -				 PCIE_CLIENT_GENERAL_CON);
> +	rockchip_pcie_set_controller_mode(rockchip, PCIE_CLIENT_MODE_RC);
>   
>   	pp = &rockchip->pci.pp;
>   	pp->ops = &rockchip_pcie_host_ops;
> @@ -776,10 +778,7 @@ static int rockchip_pcie_configure_ep(struct platform_device *pdev,
>   	}
>   
>   	rockchip_pcie_enable_enhanced_ltssm_control_mode(rockchip, PCIE_LTSSM_APP_DLY2_EN);
> -
> -	rockchip_pcie_writel_apb(rockchip,
> -				 PCIE_CLIENT_SET_MODE(PCIE_CLIENT_MODE_EP),
> -				 PCIE_CLIENT_GENERAL_CON);
> +	rockchip_pcie_set_controller_mode(rockchip, PCIE_CLIENT_MODE_EP);
>   
>   	rockchip->pci.ep.ops = &rockchip_pcie_ep_ops;
>   	rockchip->pci.ep.page_size = SZ_64K;
>