| Message ID | 20190401042547.14067-3-andrew.smirnov@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | i.MX6, DesignWare PCI improvements | expand |
Am Sonntag, den 31.03.2019, 21:25 -0700 schrieb Andrey Smirnov: > All calls to imx6_pcie_wait_for_link() share the same error path and > the state of PHY debug registers will already be printed there. With this change we can drop imx6_pcie_wait_for_link altogether, as it's now just wrapper around dw_pcie_wait_for_link that pulls out the dw_pcie struct from imx6_pcie. Both callers have dw_pcie already available, so there is no point in keeping this function. Regards, Lucas > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > > Cc: Bjorn Helgaas <bhelgaas@google.com> > > Cc: Fabio Estevam <fabio.estevam@nxp.com> > > Cc: Chris Healy <cphealy@gmail.com> > > Cc: Lucas Stach <l.stach@pengutronix.de> > > Cc: Leonard Crestez <leonard.crestez@nxp.com> > > Cc: "A.s. Dong" <aisheng.dong@nxp.com> > > Cc: Richard Zhu <hongxing.zhu@nxp.com> > Cc: linux-imx@nxp.com > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Cc: linux-pci@vger.kernel.org > > Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> > --- > drivers/pci/controller/dwc/pci-imx6.c | 9 +-------- > 1 file changed, 1 insertion(+), 8 deletions(-) > > diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c > index fb0b29e5b1f0..7582d0b2fbe7 100644 > --- a/drivers/pci/controller/dwc/pci-imx6.c > +++ b/drivers/pci/controller/dwc/pci-imx6.c > @@ -726,16 +726,9 @@ static int imx6_setup_phy_mpll(struct imx6_pcie *imx6_pcie) > static int imx6_pcie_wait_for_link(struct imx6_pcie *imx6_pcie) > { > > struct dw_pcie *pci = imx6_pcie->pci; > > - struct device *dev = pci->dev; > > > /* check if the link is up or not */ > > - if (!dw_pcie_wait_for_link(pci)) > > - return 0; > - > > - dev_dbg(dev, "DEBUG_R0: 0x%08x, DEBUG_R1: 0x%08x\n", > > - dw_pcie_readl_dbi(pci, PCIE_PHY_DEBUG_R0), > > - dw_pcie_readl_dbi(pci, PCIE_PHY_DEBUG_R1)); > > - return -ETIMEDOUT; > > + return dw_pcie_wait_for_link(pci); > } > > static int imx6_pcie_wait_for_speed_change(struct imx6_pcie *imx6_pcie)
On Fri, Apr 12, 2019 at 8:53 AM Lucas Stach <l.stach@pengutronix.de> wrote: > > Am Sonntag, den 31.03.2019, 21:25 -0700 schrieb Andrey Smirnov: > > All calls to imx6_pcie_wait_for_link() share the same error path and > > the state of PHY debug registers will already be printed there. > > With this change we can drop imx6_pcie_wait_for_link altogether, as > it's now just wrapper around dw_pcie_wait_for_link that pulls out the > dw_pcie struct from imx6_pcie. Both callers have dw_pcie already > available, so there is no point in keeping this function. > Good point, will do. Thanks, Andrey Smirnov
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index fb0b29e5b1f0..7582d0b2fbe7 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -726,16 +726,9 @@ static int imx6_setup_phy_mpll(struct imx6_pcie *imx6_pcie) static int imx6_pcie_wait_for_link(struct imx6_pcie *imx6_pcie) { struct dw_pcie *pci = imx6_pcie->pci; - struct device *dev = pci->dev; /* check if the link is up or not */ - if (!dw_pcie_wait_for_link(pci)) - return 0; - - dev_dbg(dev, "DEBUG_R0: 0x%08x, DEBUG_R1: 0x%08x\n", - dw_pcie_readl_dbi(pci, PCIE_PHY_DEBUG_R0), - dw_pcie_readl_dbi(pci, PCIE_PHY_DEBUG_R1)); - return -ETIMEDOUT; + return dw_pcie_wait_for_link(pci); } static int imx6_pcie_wait_for_speed_change(struct imx6_pcie *imx6_pcie)
All calls to imx6_pcie_wait_for_link() share the same error path and the state of PHY debug registers will already be printed there. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Leonard Crestez <leonard.crestez@nxp.com> Cc: "A.s. Dong" <aisheng.dong@nxp.com> Cc: Richard Zhu <hongxing.zhu@nxp.com> Cc: linux-imx@nxp.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-pci@vger.kernel.org Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> --- drivers/pci/controller/dwc/pci-imx6.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-)