| Message ID | 1661928956-12727-1-git-send-email-hongxing.zhu@nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] phy: freescale: imx8m-pcie: Fix the wrong order of phy_init() and phy_power_on() | expand |
On Wed, Aug 31, 2022 at 02:55:56PM +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. > Squash the changes into one patch to avoid the possible bi-section hole. Avoiding bisection holes goes without saying, so I don't think we need to even mention it ;) > 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> I propose merging this via PCI, since I suspect pci-imx6.c is more active than phy-fsl-imx8m-pcie.c. Vinod, if you agree, I'm sure Lorenzo will look for your ack. > --- > drivers/pci/controller/dwc/pci-imx6.c | 6 +++--- > drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 8 ++++---- > 2 files changed, 7 insertions(+), 7 deletions(-) > > 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 > > > -- > linux-phy mailing list > linux-phy@lists.infradead.org > https://lists.infradead.org/mailman/listinfo/linux-phy
On 31-08-22, 14:55, 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. > Squash the changes into one patch to avoid the possible bi-section hole. > > 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> > --- > drivers/pci/controller/dwc/pci-imx6.c | 6 +++--- > drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 8 ++++---- Acked-By: Vinod Koul <vkoul@kernel.org>
> -----Original Message----- > From: Bjorn Helgaas <helgaas@kernel.org> > Sent: 2022年9月3日 1:05 > To: Hongxing Zhu <hongxing.zhu@nxp.com> > Cc: a.fatoum@pengutronix.de; l.stach@pengutronix.de; bhelgaas@google.com; > lorenzo.pieralisi@arm.com; vkoul@kernel.org; Marcel Ziswiler > <marcel.ziswiler@toradex.com>; kishon@ti.com; linux-phy@lists.infradead.org; > linux-pci@vger.kernel.org; linux-arm-kernel@lists.infradead.org; > linux-kernel@vger.kernel.org; kernel@pengutronix.de; dl-linux-imx > <linux-imx@nxp.com> > Subject: Re: [PATCH v2] phy: freescale: imx8m-pcie: Fix the wrong order of > phy_init() and phy_power_on() > > On Wed, Aug 31, 2022 at 02:55:56PM +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. > > > Squash the changes into one patch to avoid the possible bi-section hole. > > Avoiding bisection holes goes without saying, so I don't think we need to even > mention it ;) Hi Bjorn: Understood
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, };
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. Squash the changes into one patch to avoid the possible bi-section hole. 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> --- drivers/pci/controller/dwc/pci-imx6.c | 6 +++--- drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 8 ++++---- 2 files changed, 7 insertions(+), 7 deletions(-)