[PATCH v8 3/4] phy: rockchip-pcie: Enable all four lanes if required

[Heiko Stübner]

Am Montag, 30. Juni 2025, 20:22:01 Mitteleuropäische Sommerzeit schrieb Geraldo Nascimento:
> Current code enables only Lane 0 because pwr_cnt will be incremented on
> first call to the function. Let's reorder the enablement code to enable
> all 4 lanes through GRF.
> 
> Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
> Reviewed-by: Robin Murphy <robin.murphy at arm.com>
> 
> Signed-off-by: Valmantas Paliksa <walmis at gmail.com>
> Signed-off-by: Geraldo Nascimento <geraldogabriel at gmail.com>

hmm, if Valmantas is the original author you should probably keep that authorship
  git commit --amend --author="Valmantas Paliksa <walmis at gmail.com>"
should do the trick.

The first signed-off should be from the patch author, then your signed-off
indicates you handling the patch later as part of this series.

[or, if you modified the code of the patch heavily, Co-developed-by could
 also be appropriate]

Heiko

> ---
>  drivers/phy/rockchip/phy-rockchip-pcie.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/phy/rockchip/phy-rockchip-pcie.c b/drivers/phy/rockchip/phy-rockchip-pcie.c
> index bd44af36c67a..f22ffb41cdc2 100644
> --- a/drivers/phy/rockchip/phy-rockchip-pcie.c
> +++ b/drivers/phy/rockchip/phy-rockchip-pcie.c
> @@ -160,6 +160,12 @@ static int rockchip_pcie_phy_power_on(struct phy *phy)
>  
>  	guard(mutex)(&rk_phy->pcie_mutex);
>  
> +	regmap_write(rk_phy->reg_base,
> +		     rk_phy->phy_data->pcie_laneoff,
> +		     HIWORD_UPDATE(!PHY_LANE_IDLE_OFF,
> +				   PHY_LANE_IDLE_MASK,
> +				   PHY_LANE_IDLE_A_SHIFT + inst->index));
> +
>  	if (rk_phy->pwr_cnt++) {
>  		return 0;
>  	}
> @@ -176,12 +182,6 @@ static int rockchip_pcie_phy_power_on(struct phy *phy)
>  				   PHY_CFG_ADDR_MASK,
>  				   PHY_CFG_ADDR_SHIFT));
>  
> -	regmap_write(rk_phy->reg_base,
> -		     rk_phy->phy_data->pcie_laneoff,
> -		     HIWORD_UPDATE(!PHY_LANE_IDLE_OFF,
> -				   PHY_LANE_IDLE_MASK,
> -				   PHY_LANE_IDLE_A_SHIFT + inst->index));
> -
>  	/*
>  	 * No documented timeout value for phy operation below,
>  	 * so we make it large enough here. And we use loop-break
>