| Message ID | 20241101070610.1267391-7-hongxing.zhu@nxp.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | A bunch of changes to refine i.MX PCIe driver | expand |
On Fri, Nov 01, 2024 at 03:06:06PM +0800, Richard Zhu wrote: > Ensure the *_enable_ref_clk() function is symmetric by addressing missing > disable parts on some platforms. > > Fixes: d0a75c791f98 ("PCI: imx6: Factor out ref clock disable to match enable") > Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> - Mani > Reviewed-by: Frank Li <Frank.Li@nxp.com> > --- > drivers/pci/controller/dwc/pci-imx6.c | 24 ++++++++++++------------ > 1 file changed, 12 insertions(+), 12 deletions(-) > > diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c > index 54039d2760d5..bb130c84c016 100644 > --- a/drivers/pci/controller/dwc/pci-imx6.c > +++ b/drivers/pci/controller/dwc/pci-imx6.c > @@ -595,10 +595,9 @@ static int imx_pcie_attach_pd(struct device *dev) > > static int imx6sx_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable) > { > - if (enable) > - regmap_clear_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, > - IMX6SX_GPR12_PCIE_TEST_POWERDOWN); > - > + regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, > + IMX6SX_GPR12_PCIE_TEST_POWERDOWN, > + enable ? 0 : IMX6SX_GPR12_PCIE_TEST_POWERDOWN); > return 0; > } > > @@ -627,19 +626,20 @@ static int imx8mm_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable) > { > int offset = imx_pcie_grp_offset(imx_pcie); > > - if (enable) { > - regmap_clear_bits(imx_pcie->iomuxc_gpr, offset, IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE); > - regmap_set_bits(imx_pcie->iomuxc_gpr, offset, IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN); > - } > - > + regmap_update_bits(imx_pcie->iomuxc_gpr, offset, > + IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE, > + enable ? 0 : IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE); > + regmap_update_bits(imx_pcie->iomuxc_gpr, offset, > + IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN, > + enable ? IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN : 0); > return 0; > } > > static int imx7d_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable) > { > - if (!enable) > - regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, > - IMX7D_GPR12_PCIE_PHY_REFCLK_SEL); > + regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, > + IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, > + enable ? 0 : IMX7D_GPR12_PCIE_PHY_REFCLK_SEL); > return 0; > } > > -- > 2.37.1 >
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 54039d2760d5..bb130c84c016 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -595,10 +595,9 @@ static int imx_pcie_attach_pd(struct device *dev) static int imx6sx_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable) { - if (enable) - regmap_clear_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, - IMX6SX_GPR12_PCIE_TEST_POWERDOWN); - + regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, + IMX6SX_GPR12_PCIE_TEST_POWERDOWN, + enable ? 0 : IMX6SX_GPR12_PCIE_TEST_POWERDOWN); return 0; } @@ -627,19 +626,20 @@ static int imx8mm_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable) { int offset = imx_pcie_grp_offset(imx_pcie); - if (enable) { - regmap_clear_bits(imx_pcie->iomuxc_gpr, offset, IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE); - regmap_set_bits(imx_pcie->iomuxc_gpr, offset, IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN); - } - + regmap_update_bits(imx_pcie->iomuxc_gpr, offset, + IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE, + enable ? 0 : IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE); + regmap_update_bits(imx_pcie->iomuxc_gpr, offset, + IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN, + enable ? IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN : 0); return 0; } static int imx7d_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable) { - if (!enable) - regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, - IMX7D_GPR12_PCIE_PHY_REFCLK_SEL); + regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, + IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, + enable ? 0 : IMX7D_GPR12_PCIE_PHY_REFCLK_SEL); return 0; }
Ensure the *_enable_ref_clk() function is symmetric by addressing missing disable parts on some platforms. Fixes: d0a75c791f98 ("PCI: imx6: Factor out ref clock disable to match enable") Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> --- drivers/pci/controller/dwc/pci-imx6.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-)