Re: [PATCH v3] phy: freescale: imx8m-pcie: Fix the wrong order of phy_init() and phy_power_on()

Lorenzo Pieralisi
2022-09-29T08:57:42Z

On Mon, Sep 05, 2022 at 10:23:03AM +0800, Richard Zhu wrote:
> Refer to phy_core driver, phy_init() must be called before phy_power_on().
> Fix the wrong order of phy_init() and phy_power_on() here.
>
> Fixes: 1aa97b002258 ("phy: freescale: pcie: Initialize the imx8 pcie standalone phy driver")
> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Acked-by: Vinod Koul <vkoul@kernel.org>
> ---
> drivers/pci/controller/dwc/pci-imx6.c | 6 +++---
> drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 8 ++++----
> 2 files changed, 7 insertions(+), 7 deletions(-)

Who is picking this up ? I believe this is supposed to
go via the PHY tree, so:

Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org>

> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 6e5debdbc55b..b5f0de455a7b 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -935,7 +935,7 @@ static int imx6_pcie_host_init(struct dw_pcie_rp *pp)
> }
>
> if (imx6_pcie->phy) {
> - ret = phy_power_on(imx6_pcie->phy);
> + ret = phy_init(imx6_pcie->phy);
> if (ret) {
> dev_err(dev, "pcie PHY power up failed\n");
> goto err_clk_disable;
> @@ -949,7 +949,7 @@ static int imx6_pcie_host_init(struct dw_pcie_rp *pp)
> }
>
> if (imx6_pcie->phy) {
> - ret = phy_init(imx6_pcie->phy);
> + ret = phy_power_on(imx6_pcie->phy);
> if (ret) {
> dev_err(dev, "waiting for PHY ready timeout!\n");
> goto err_phy_off;
> @@ -961,7 +961,7 @@ static int imx6_pcie_host_init(struct dw_pcie_rp *pp)
>
> err_phy_off:
> if (imx6_pcie->phy)
> - phy_power_off(imx6_pcie->phy);
> + phy_exit(imx6_pcie->phy);
> err_clk_disable:
> imx6_pcie_clk_disable(imx6_pcie);
> err_reg_disable:
> diff --git a/drivers/phy/freescale/phy-fsl-imx8m-pcie.c b/drivers/phy/freescale/phy-fsl-imx8m-pcie.c
> index ad7d2edfc414..c93286483b42 100644
> --- a/drivers/phy/freescale/phy-fsl-imx8m-pcie.c
> +++ b/drivers/phy/freescale/phy-fsl-imx8m-pcie.c
> @@ -59,7 +59,7 @@ struct imx8_pcie_phy {
> bool clkreq_unused;
> };
>
> -static int imx8_pcie_phy_init(struct phy *phy)
> +static int imx8_pcie_phy_power_on(struct phy *phy)
> {
> int ret;
> u32 val, pad_mode;
> @@ -137,14 +137,14 @@ static int imx8_pcie_phy_init(struct phy *phy)
> return ret;
> }
>
> -static int imx8_pcie_phy_power_on(struct phy *phy)
> +static int imx8_pcie_phy_init(struct phy *phy)
> {
> struct imx8_pcie_phy *imx8_phy = phy_get_drvdata(phy);
>
> return clk_prepare_enable(imx8_phy->clk);
> }
>
> -static int imx8_pcie_phy_power_off(struct phy *phy)
> +static int imx8_pcie_phy_exit(struct phy *phy)
> {
> struct imx8_pcie_phy *imx8_phy = phy_get_drvdata(phy);
>
> @@ -155,8 +155,8 @@ static int imx8_pcie_phy_power_off(struct phy *phy)
>
> static const struct phy_ops imx8_pcie_phy_ops = {
> .init = imx8_pcie_phy_init,
> + .exit = imx8_pcie_phy_exit,
> .power_on = imx8_pcie_phy_power_on,
> - .power_off = imx8_pcie_phy_power_off,
> .owner = THIS_MODULE,
> };
>
> --
> 2.25.1
>