From: Richard Zhu <hongxing.zhu@nxp.com> To: Lucas Stach <l.stach@pengutronix.de>, "bhelgaas@google.com" <bhelgaas@google.com>, "lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com> Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>, dl-linux-imx <linux-imx@nxp.com>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "kernel@pengutronix.de" <kernel@pengutronix.de> Subject: RE: [RESEND v2 2/5] PCI: imx6: Add the error propagation from host_init Date: Tue, 19 Oct 2021 07:33:27 +0000 [thread overview] Message-ID: <AS8PR04MB8676A9F86C108916FA9729B58CBD9@AS8PR04MB8676.eurprd04.prod.outlook.com> (raw) In-Reply-To: <6c2cd328dfd407002339d1c83ebd5b832d4f377d.camel@pengutronix.de> > -----Original Message----- > From: Lucas Stach <l.stach@pengutronix.de> > Sent: Saturday, October 16, 2021 2:16 AM > To: Richard Zhu <hongxing.zhu@nxp.com>; bhelgaas@google.com; > lorenzo.pieralisi@arm.com > Cc: linux-pci@vger.kernel.org; dl-linux-imx <linux-imx@nxp.com>; > linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org; > kernel@pengutronix.de > Subject: Re: [RESEND v2 2/5] PCI: imx6: Add the error propagation from > host_init > > Am Freitag, dem 15.10.2021 um 14:05 +0800 schrieb Richard Zhu: > > Since there is error return check of the host_init callback, add error > > check to imx6_pcie_deassert_core_reset() function, and change the > > function type accordingly. > > > > Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> > > Reviewed-by: Lucas Stach <l.stach@pengutronix.de> > [Richard Zhu] Thanks. Best Regards Richard Zhu > > --- > > drivers/pci/controller/dwc/pci-imx6.c | 24 ++++++++++++++++-------- > > 1 file changed, 16 insertions(+), 8 deletions(-) > > > > diff --git a/drivers/pci/controller/dwc/pci-imx6.c > > b/drivers/pci/controller/dwc/pci-imx6.c > > index 1fa1dba6da81..3372775834a2 100644 > > --- a/drivers/pci/controller/dwc/pci-imx6.c > > +++ b/drivers/pci/controller/dwc/pci-imx6.c > > @@ -527,24 +527,24 @@ static void > imx7d_pcie_wait_for_phy_pll_lock(struct imx6_pcie *imx6_pcie) > > dev_err(dev, "PCIe PLL lock timeout\n"); } > > > > -static void imx6_pcie_deassert_core_reset(struct imx6_pcie > > *imx6_pcie) > > +static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie) > > { > > struct dw_pcie *pci = imx6_pcie->pci; > > struct device *dev = pci->dev; > > - int ret; > > + int ret, err; > > > > if (imx6_pcie->vpcie && !regulator_is_enabled(imx6_pcie->vpcie)) { > > ret = regulator_enable(imx6_pcie->vpcie); > > if (ret) { > > dev_err(dev, "failed to enable vpcie regulator: %d\n", > > ret); > > - return; > > + return ret; > > } > > } > > > > - ret = imx6_pcie_clk_enable(imx6_pcie); > > - if (ret) { > > - dev_err(dev, "unable to enable pcie clocks\n"); > > + err = imx6_pcie_clk_enable(imx6_pcie); > > + if (err) { > > + dev_err(dev, "unable to enable pcie clocks: %d\n", err); > > goto err_clks; > > } > > > > @@ -599,7 +599,7 @@ static void imx6_pcie_deassert_core_reset(struct > imx6_pcie *imx6_pcie) > > break; > > } > > > > - return; > > + return 0; > > > > err_clks: > > if (imx6_pcie->vpcie && regulator_is_enabled(imx6_pcie->vpcie) > 0) > > { @@ -608,6 +608,7 @@ static void imx6_pcie_deassert_core_reset(struct > imx6_pcie *imx6_pcie) > > dev_err(dev, "failed to disable vpcie regulator: %d\n", > > ret); > > } > > + return err; > > } > > > > static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie) @@ > > -858,11 +859,18 @@ static int imx6_pcie_start_link(struct dw_pcie > > *pci) static int imx6_pcie_host_init(struct pcie_port *pp) { > > struct dw_pcie *pci = to_dw_pcie_from_pp(pp); > > + struct device *dev = pci->dev; > > struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci); > > + int ret; > > > > imx6_pcie_assert_core_reset(imx6_pcie); > > imx6_pcie_init_phy(imx6_pcie); > > - imx6_pcie_deassert_core_reset(imx6_pcie); > > + ret = imx6_pcie_deassert_core_reset(imx6_pcie); > > + if (ret < 0) { > > + dev_err(dev, "pcie host init failed: %d.\n", ret); > > + return ret; > > + } > > + > > imx6_setup_phy_mpll(imx6_pcie); > > > > return 0; >
WARNING: multiple messages have this Message-ID (diff)
From: Richard Zhu <hongxing.zhu@nxp.com> To: Lucas Stach <l.stach@pengutronix.de>, "bhelgaas@google.com" <bhelgaas@google.com>, "lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com> Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>, dl-linux-imx <linux-imx@nxp.com>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "kernel@pengutronix.de" <kernel@pengutronix.de> Subject: RE: [RESEND v2 2/5] PCI: imx6: Add the error propagation from host_init Date: Tue, 19 Oct 2021 07:33:27 +0000 [thread overview] Message-ID: <AS8PR04MB8676A9F86C108916FA9729B58CBD9@AS8PR04MB8676.eurprd04.prod.outlook.com> (raw) In-Reply-To: <6c2cd328dfd407002339d1c83ebd5b832d4f377d.camel@pengutronix.de> > -----Original Message----- > From: Lucas Stach <l.stach@pengutronix.de> > Sent: Saturday, October 16, 2021 2:16 AM > To: Richard Zhu <hongxing.zhu@nxp.com>; bhelgaas@google.com; > lorenzo.pieralisi@arm.com > Cc: linux-pci@vger.kernel.org; dl-linux-imx <linux-imx@nxp.com>; > linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org; > kernel@pengutronix.de > Subject: Re: [RESEND v2 2/5] PCI: imx6: Add the error propagation from > host_init > > Am Freitag, dem 15.10.2021 um 14:05 +0800 schrieb Richard Zhu: > > Since there is error return check of the host_init callback, add error > > check to imx6_pcie_deassert_core_reset() function, and change the > > function type accordingly. > > > > Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> > > Reviewed-by: Lucas Stach <l.stach@pengutronix.de> > [Richard Zhu] Thanks. Best Regards Richard Zhu > > --- > > drivers/pci/controller/dwc/pci-imx6.c | 24 ++++++++++++++++-------- > > 1 file changed, 16 insertions(+), 8 deletions(-) > > > > diff --git a/drivers/pci/controller/dwc/pci-imx6.c > > b/drivers/pci/controller/dwc/pci-imx6.c > > index 1fa1dba6da81..3372775834a2 100644 > > --- a/drivers/pci/controller/dwc/pci-imx6.c > > +++ b/drivers/pci/controller/dwc/pci-imx6.c > > @@ -527,24 +527,24 @@ static void > imx7d_pcie_wait_for_phy_pll_lock(struct imx6_pcie *imx6_pcie) > > dev_err(dev, "PCIe PLL lock timeout\n"); } > > > > -static void imx6_pcie_deassert_core_reset(struct imx6_pcie > > *imx6_pcie) > > +static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie) > > { > > struct dw_pcie *pci = imx6_pcie->pci; > > struct device *dev = pci->dev; > > - int ret; > > + int ret, err; > > > > if (imx6_pcie->vpcie && !regulator_is_enabled(imx6_pcie->vpcie)) { > > ret = regulator_enable(imx6_pcie->vpcie); > > if (ret) { > > dev_err(dev, "failed to enable vpcie regulator: %d\n", > > ret); > > - return; > > + return ret; > > } > > } > > > > - ret = imx6_pcie_clk_enable(imx6_pcie); > > - if (ret) { > > - dev_err(dev, "unable to enable pcie clocks\n"); > > + err = imx6_pcie_clk_enable(imx6_pcie); > > + if (err) { > > + dev_err(dev, "unable to enable pcie clocks: %d\n", err); > > goto err_clks; > > } > > > > @@ -599,7 +599,7 @@ static void imx6_pcie_deassert_core_reset(struct > imx6_pcie *imx6_pcie) > > break; > > } > > > > - return; > > + return 0; > > > > err_clks: > > if (imx6_pcie->vpcie && regulator_is_enabled(imx6_pcie->vpcie) > 0) > > { @@ -608,6 +608,7 @@ static void imx6_pcie_deassert_core_reset(struct > imx6_pcie *imx6_pcie) > > dev_err(dev, "failed to disable vpcie regulator: %d\n", > > ret); > > } > > + return err; > > } > > > > static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie) @@ > > -858,11 +859,18 @@ static int imx6_pcie_start_link(struct dw_pcie > > *pci) static int imx6_pcie_host_init(struct pcie_port *pp) { > > struct dw_pcie *pci = to_dw_pcie_from_pp(pp); > > + struct device *dev = pci->dev; > > struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci); > > + int ret; > > > > imx6_pcie_assert_core_reset(imx6_pcie); > > imx6_pcie_init_phy(imx6_pcie); > > - imx6_pcie_deassert_core_reset(imx6_pcie); > > + ret = imx6_pcie_deassert_core_reset(imx6_pcie); > > + if (ret < 0) { > > + dev_err(dev, "pcie host init failed: %d.\n", ret); > > + return ret; > > + } > > + > > imx6_setup_phy_mpll(imx6_pcie); > > > > return 0; > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-10-19 7:33 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-10-15 6:05 [RESEND v2 0/5] PCI: imx6: refine codes and add compliance tests mode support Richard Zhu 2021-10-15 6:05 ` Richard Zhu 2021-10-15 6:05 ` [RESEND v2 1/5] PCI: imx6: Encapsulate the clock enable into one standalone function Richard Zhu 2021-10-15 6:05 ` Richard Zhu 2021-10-15 18:13 ` Lucas Stach 2021-10-15 18:13 ` Lucas Stach 2021-10-19 7:32 ` Richard Zhu 2021-10-19 7:32 ` Richard Zhu 2021-10-15 6:05 ` [RESEND v2 2/5] PCI: imx6: Add the error propagation from host_init Richard Zhu 2021-10-15 6:05 ` Richard Zhu 2021-10-15 18:16 ` Lucas Stach 2021-10-15 18:16 ` Lucas Stach 2021-10-19 7:33 ` Richard Zhu [this message] 2021-10-19 7:33 ` Richard Zhu 2021-10-15 6:05 ` [RESEND v2 3/5] PCI: imx6: Fix the regulator dump when link never came up Richard Zhu 2021-10-15 6:05 ` Richard Zhu 2021-10-15 18:22 ` Lucas Stach 2021-10-15 18:22 ` Lucas Stach 2021-10-19 7:39 ` Richard Zhu 2021-10-19 7:39 ` Richard Zhu 2021-10-20 3:22 ` Richard Zhu 2021-10-20 3:22 ` Richard Zhu 2021-10-15 18:34 ` Fabio Estevam 2021-10-15 18:34 ` Fabio Estevam 2021-10-19 7:44 ` Richard Zhu 2021-10-19 7:44 ` Richard Zhu 2021-10-15 6:05 ` [RESEND v2 4/5] PCI: imx6: Fix the clock reference handling unbalance " Richard Zhu 2021-10-15 6:05 ` Richard Zhu 2021-10-15 18:24 ` Lucas Stach 2021-10-15 18:24 ` Lucas Stach 2021-10-19 7:43 ` Richard Zhu 2021-10-19 7:43 ` Richard Zhu 2021-10-15 18:49 ` Bjorn Helgaas 2021-10-15 18:49 ` Bjorn Helgaas 2021-10-15 18:51 ` Bjorn Helgaas 2021-10-15 18:51 ` Bjorn Helgaas 2021-10-19 7:56 ` Richard Zhu 2021-10-19 7:56 ` Richard Zhu 2021-10-22 8:02 ` Richard Zhu 2021-10-22 8:02 ` Richard Zhu 2021-10-23 9:53 ` Krzysztof Wilczyński 2021-10-23 9:53 ` Krzysztof Wilczyński 2021-10-25 2:35 ` Richard Zhu 2021-10-25 2:35 ` Richard Zhu 2021-10-26 22:21 ` Bjorn Helgaas 2021-10-26 22:21 ` Bjorn Helgaas 2021-10-27 1:30 ` Richard Zhu 2021-10-27 1:30 ` Richard Zhu 2021-10-26 16:38 ` Bjorn Helgaas 2021-10-26 16:38 ` Bjorn Helgaas 2021-10-27 1:29 ` Richard Zhu 2021-10-27 1:29 ` Richard Zhu 2021-10-19 7:45 ` Richard Zhu 2021-10-19 7:45 ` Richard Zhu 2021-10-15 6:05 ` [RESEND v2 5/5] PCI: imx6: Add the compliance tests mode support Richard Zhu 2021-10-15 6:05 ` Richard Zhu 2021-10-15 18:28 ` Lucas Stach 2021-10-15 18:28 ` Lucas Stach 2021-10-19 8:12 ` Richard Zhu 2021-10-19 8:12 ` Richard Zhu
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