On Mon, Apr 15, 2024 at 05:11:32PM +0900, Yoshihiro Shimoda wrote: > In other to support future SoCs such as r8a779g0 and r8a779h0 that > require different initialization settings, let's introduce SoC > specific driver data with the initial member being the device mode. > No functional change. > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> One nitpick below. With that addressed, Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > --- > drivers/pci/controller/dwc/pcie-rcar-gen4.c | 30 ++++++++++++++------- > 1 file changed, 21 insertions(+), 9 deletions(-) > > diff --git a/drivers/pci/controller/dwc/pcie-rcar-gen4.c b/drivers/pci/controller/dwc/pcie-rcar-gen4.c > index 0be760ed420b..3da0a844e1b6 100644 > --- a/drivers/pci/controller/dwc/pcie-rcar-gen4.c > +++ b/drivers/pci/controller/dwc/pcie-rcar-gen4.c > @@ -48,11 +48,15 @@ > #define RCAR_GEN4_PCIE_EP_FUNC_DBI_OFFSET 0x1000 > #define RCAR_GEN4_PCIE_EP_FUNC_DBI2_OFFSET 0x800 > > +struct rcar_gen4_pcie_drvdata { > + enum dw_pcie_device_mode mode; > +}; > + > struct rcar_gen4_pcie { > struct dw_pcie dw; > void __iomem *base; > struct platform_device *pdev; > - enum dw_pcie_device_mode mode; > + const struct rcar_gen4_pcie_drvdata *drvdata; > }; > #define to_rcar_gen4_pcie(_dw) container_of(_dw, struct rcar_gen4_pcie, dw) > > @@ -137,7 +141,7 @@ static int rcar_gen4_pcie_start_link(struct dw_pcie *dw) > * Since dw_pcie_setup_rc() sets it once, PCIe Gen2 will be trained. > * So, this needs remaining times for up to PCIe Gen4 if RC mode. > */ > - if (changes && rcar->mode == DW_PCIE_RC_TYPE) > + if (changes && rcar->drvdata->mode == DW_PCIE_RC_TYPE) > changes--; > > for (i = 0; i < changes; i++) { > @@ -172,9 +176,9 @@ static int rcar_gen4_pcie_common_init(struct rcar_gen4_pcie *rcar) > reset_control_assert(dw->core_rsts[DW_PCIE_PWR_RST].rstc); > > val = readl(rcar->base + PCIEMSR0); > - if (rcar->mode == DW_PCIE_RC_TYPE) { > + if (rcar->drvdata->mode == DW_PCIE_RC_TYPE) { > val |= DEVICE_TYPE_RC; > - } else if (rcar->mode == DW_PCIE_EP_TYPE) { > + } else if (rcar->drvdata->mode == DW_PCIE_EP_TYPE) { > val |= DEVICE_TYPE_EP; > } else { > ret = -EINVAL; > @@ -437,9 +441,9 @@ static void rcar_gen4_remove_dw_pcie_ep(struct rcar_gen4_pcie *rcar) > /* Common */ > static int rcar_gen4_add_dw_pcie(struct rcar_gen4_pcie *rcar) > { > - rcar->mode = (uintptr_t)of_device_get_match_data(&rcar->pdev->dev); > + rcar->drvdata = of_device_get_match_data(&rcar->pdev->dev); Even though rcar->drvdata won't be NULL, the lack of NULL check will cause folks to send fixup patch later. So please add a NULL check here itself. - Mani > > - switch (rcar->mode) { > + switch (rcar->drvdata->mode) { > case DW_PCIE_RC_TYPE: > return rcar_gen4_add_dw_pcie_rp(rcar); > case DW_PCIE_EP_TYPE: > @@ -480,7 +484,7 @@ static int rcar_gen4_pcie_probe(struct platform_device *pdev) > > static void rcar_gen4_remove_dw_pcie(struct rcar_gen4_pcie *rcar) > { > - switch (rcar->mode) { > + switch (rcar->drvdata->mode) { > case DW_PCIE_RC_TYPE: > rcar_gen4_remove_dw_pcie_rp(rcar); > break; > @@ -500,14 +504,22 @@ static void rcar_gen4_pcie_remove(struct platform_device *pdev) > rcar_gen4_pcie_unprepare(rcar); > } > > +static struct rcar_gen4_pcie_drvdata drvdata_rcar_gen4_pcie = { > + .mode = DW_PCIE_RC_TYPE, > +}; > + > +static struct rcar_gen4_pcie_drvdata drvdata_rcar_gen4_pcie_ep = { > + .mode = DW_PCIE_EP_TYPE, > +}; > + > static const struct of_device_id rcar_gen4_pcie_of_match[] = { > { > .compatible = "renesas,rcar-gen4-pcie", > - .data = (void *)DW_PCIE_RC_TYPE, > + .data = &drvdata_rcar_gen4_pcie, > }, > { > .compatible = "renesas,rcar-gen4-pcie-ep", > - .data = (void *)DW_PCIE_EP_TYPE, > + .data = &drvdata_rcar_gen4_pcie_ep, > }, > {}, > }; > -- > 2.25.1 > > -- மணிவண்ணன் சதாசிவம்