linux-kernel - Re: [PATCH 058/102] phy: rockchip-pcie: explicitly request exclusive reset control

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Message-ID: <70531cf6-4576-1619-7ec8-11b771af4c96@rock-chips.com>
Date:   Thu, 3 Aug 2017 08:37:12 +0800
From:   Shawn Lin <shawn.lin@...k-chips.com>
To:     Philipp Zabel <p.zabel@...gutronix.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     linux-kernel@...r.kernel.org, shawn.lin@...k-chips.com,
        linux-rockchip@...ts.infradead.org,
        Heiko Stuebner <heiko@...ech.de>,
        Kishon Vijay Abraham I <kishon@...com>
Subject: Re: [PATCH 058/102] phy: rockchip-pcie: explicitly request exclusive
 reset control

[+ Bjorn]

On 2017/7/19 23:26, Philipp Zabel wrote:
> Commit a53e35db70d1 ("reset: Ensure drivers are explicit when requesting
> reset lines") started to transition the reset control request API calls
> to explicitly state whether the driver needs exclusive or shared reset
> control behavior. Convert all drivers requesting exclusive resets to the
> explicit API call so the temporary transition helpers can be removed.
> 
> No functional changes.
> 
> Cc: Kishon Vijay Abraham I <kishon@...com>
> Cc: Heiko Stuebner <heiko@...ech.de>
> Cc: linux-rockchip@...ts.infradead.org
> Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>

some changes for phy-rockchip-pcie.c would go via pci tree
for 4.14, so is it ok for Bjorn to pick this up if no objection
from Kishon, in case of merge conflict?

Anyway,

Reviewed-by: Shawn Lin <shawn.lin@...k-chips.com>

> ---
>   drivers/phy/rockchip/phy-rockchip-pcie.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/phy/rockchip/phy-rockchip-pcie.c b/drivers/phy/rockchip/phy-rockchip-pcie.c
> index 6904633cad687..258220b7f481c 100644
> --- a/drivers/phy/rockchip/phy-rockchip-pcie.c
> +++ b/drivers/phy/rockchip/phy-rockchip-pcie.c
> @@ -305,7 +305,7 @@ static int rockchip_pcie_phy_probe(struct platform_device *pdev)
>   	rk_phy->phy_data = (struct rockchip_pcie_data *)of_id->data;
>   	rk_phy->reg_base = grf;
>   
> -	rk_phy->phy_rst = devm_reset_control_get(dev, "phy");
> +	rk_phy->phy_rst = devm_reset_control_get_exclusive(dev, "phy");
>   	if (IS_ERR(rk_phy->phy_rst)) {
>   		if (PTR_ERR(rk_phy->phy_rst) != -EPROBE_DEFER)
>   			dev_err(dev,
>