| Message ID | 20241024065328.521518-10-wei.fang@nxp.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | add basic support for i.MX95 NETC | expand |
On Thu, Oct 24, 2024 at 02:53:24PM +0800, Wei Fang wrote: > The verdor ID and device ID of i.MX95 EMDIO are different from LS1028A > EMDIO, so add new vendor ID and device ID to pci_device_id table to > support i.MX95 EMDIO. And the i.MX95 EMDIO has two pins that need to be > controlled, namely MDC and MDIO. > > Signed-off-by: Wei Fang <wei.fang@nxp.com> > Reviewed-by: Frank Li <Frank.Li@nxp.com> > --- > v5: no changes > --- > drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c b/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c > index 2445e35a764a..9968a1e9b5ef 100644 > --- a/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c > +++ b/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c > @@ -2,6 +2,7 @@ > /* Copyright 2019 NXP */ > #include <linux/fsl/enetc_mdio.h> > #include <linux/of_mdio.h> > +#include <linux/pinctrl/consumer.h> > #include "enetc_pf.h" > > #define ENETC_MDIO_DEV_ID 0xee01 > @@ -71,6 +72,8 @@ static int enetc_pci_mdio_probe(struct pci_dev *pdev, > dev_info(&pdev->dev, "Enabled ERR050089 workaround\n"); > } > > + pinctrl_pm_select_default_state(dev); > + Not an expert on pinctrl by any means.. but is this needed? Documentation/driver-api/pin-control.rst says: | When a device driver is about to probe the device core will automatically | attempt to issue ``pinctrl_get_select_default()`` on these devices. | This way driver writers do not need to add any of the boilerplate code | of the type found below. The documentation is obsolete, because pinctrl_get_select_default() doesn't seem to be the current mechanism through which that happens. But there is a pinctrl_bind_pins() function in really_probe() which looks like it does that job. So.. is this needed? Also, pinctrl_pm_select_default_state() seems to be the suspend/resume (hence _pm_ name) variant of pinctrl_select_default_state(), but this is called from probe(). > err = of_mdiobus_register(bus, dev->of_node); > if (err) > goto err_mdiobus_reg; > @@ -113,6 +116,7 @@ static void enetc_pci_mdio_remove(struct pci_dev *pdev) > > static const struct pci_device_id enetc_pci_mdio_id_table[] = { > { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_MDIO_DEV_ID) }, > + { PCI_DEVICE(PCI_VENDOR_ID_NXP2, PCI_DEVICE_ID_NXP2_NETC_EMDIO) }, > { 0, } /* End of table. */ > }; > MODULE_DEVICE_TABLE(pci, enetc_pci_mdio_id_table); > -- > 2.34.1 >
On Thu, Oct 24, 2024 at 02:53:24PM +0800, Wei Fang wrote:
> The verdor ID and device ID of i.MX95 EMDIO are different from LS1028A
Also: s/verdor/vendor/
> > > > Signed-off-by: Wei Fang <wei.fang@nxp.com> > > Reviewed-by: Frank Li <Frank.Li@nxp.com> > > --- > > v5: no changes > > --- > > drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c > b/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c > > index 2445e35a764a..9968a1e9b5ef 100644 > > --- a/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c > > +++ b/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c > > @@ -2,6 +2,7 @@ > > /* Copyright 2019 NXP */ > > #include <linux/fsl/enetc_mdio.h> > > #include <linux/of_mdio.h> > > +#include <linux/pinctrl/consumer.h> > > #include "enetc_pf.h" > > > > #define ENETC_MDIO_DEV_ID 0xee01 > > @@ -71,6 +72,8 @@ static int enetc_pci_mdio_probe(struct pci_dev *pdev, > > dev_info(&pdev->dev, "Enabled ERR050089 workaround\n"); > > } > > > > + pinctrl_pm_select_default_state(dev); > > + > > Not an expert on pinctrl by any means.. but is this needed? > Documentation/driver-api/pin-control.rst says: > > | When a device driver is about to probe the device core will automatically > | attempt to issue ``pinctrl_get_select_default()`` on these devices. > | This way driver writers do not need to add any of the boilerplate code > | of the type found below. > > The documentation is obsolete, because pinctrl_get_select_default() > doesn't seem to be the current mechanism through which that happens. But > there is a pinctrl_bind_pins() function in really_probe() which looks > like it does that job. So.. is this needed? I think it is no need, I will remove it, thanks.
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c b/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c index 2445e35a764a..9968a1e9b5ef 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c @@ -2,6 +2,7 @@ /* Copyright 2019 NXP */ #include <linux/fsl/enetc_mdio.h> #include <linux/of_mdio.h> +#include <linux/pinctrl/consumer.h> #include "enetc_pf.h" #define ENETC_MDIO_DEV_ID 0xee01 @@ -71,6 +72,8 @@ static int enetc_pci_mdio_probe(struct pci_dev *pdev, dev_info(&pdev->dev, "Enabled ERR050089 workaround\n"); } + pinctrl_pm_select_default_state(dev); + err = of_mdiobus_register(bus, dev->of_node); if (err) goto err_mdiobus_reg; @@ -113,6 +116,7 @@ static void enetc_pci_mdio_remove(struct pci_dev *pdev) static const struct pci_device_id enetc_pci_mdio_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_MDIO_DEV_ID) }, + { PCI_DEVICE(PCI_VENDOR_ID_NXP2, PCI_DEVICE_ID_NXP2_NETC_EMDIO) }, { 0, } /* End of table. */ }; MODULE_DEVICE_TABLE(pci, enetc_pci_mdio_id_table);