* Roger Quadros <rogerq@xxxxxx> [121128 06:52]:
> Both OMAP4 and 5 exhibit the same revision ID in the REVISION register
> but they have different number of ports i.e. 2 and 3 respectively.
> So we can't rely on REVISION register for number of ports on OMAP5
> and depend on platform data (or device tree) instead.
>
> Signed-off-by: Roger Quadros <rogerq@xxxxxx>
> ---
> arch/arm/mach-omap2/usb-host.c | 1 +
> arch/arm/plat-omap/include/plat/usb.h | 2 +
> drivers/mfd/omap-usb-host.c | 34 ++++++++++++++++++++------------
> 3 files changed, 24 insertions(+), 13 deletions(-)
Note that plat/usb.h is now include/linux/platform_data/usb-omap.h
in linux next so you need to coordinate with that.
For the arch/arm/*omap*/* parts:
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
> diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c
> index 3c43449..eb85528 100644
> --- a/arch/arm/mach-omap2/usb-host.c
> +++ b/arch/arm/mach-omap2/usb-host.c
> @@ -504,6 +504,7 @@ void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
> ohci_data.es2_compatibility = pdata->es2_compatibility;
> usbhs_data.ehci_data = &ehci_data;
> usbhs_data.ohci_data = &ohci_data;
> + usbhs_data.nports = pdata->nports;
>
> if (cpu_is_omap34xx()) {
> setup_ehci_io_mux(pdata->port_mode);
> diff --git a/arch/arm/plat-omap/include/plat/usb.h b/arch/arm/plat-omap/include/plat/usb.h
> index 87ee140..6b618a1 100644
> --- a/arch/arm/plat-omap/include/plat/usb.h
> +++ b/arch/arm/plat-omap/include/plat/usb.h
> @@ -27,6 +27,7 @@ enum usbhs_omap_port_mode {
> };
>
> struct usbhs_omap_board_data {
> + int nports;
> enum usbhs_omap_port_mode port_mode[OMAP3_HS_USB_PORTS];
>
> /* have to be valid if phy_reset is true and portx is in phy mode */
> @@ -59,6 +60,7 @@ struct ohci_hcd_omap_platform_data {
> };
>
> struct usbhs_omap_platform_data {
> + int nports;
> enum usbhs_omap_port_mode port_mode[OMAP3_HS_USB_PORTS];
>
> struct ehci_hcd_omap_platform_data *ehci_data;
> diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
> index 87b574b..fda235a 100644
> --- a/drivers/mfd/omap-usb-host.c
> +++ b/drivers/mfd/omap-usb-host.c
> @@ -495,19 +495,27 @@ static int __devinit usbhs_omap_probe(struct platform_device *pdev)
> */
> pm_runtime_put_sync(dev);
>
> - switch (omap->usbhs_rev) {
> - case OMAP_USBHS_REV1:
> - omap->nports = 3;
> - break;
> - case OMAP_USBHS_REV2:
> - omap->nports = 2;
> - break;
> - default:
> - omap->nports = OMAP3_HS_USB_PORTS;
> - dev_dbg(dev,
> - "USB HOST Rev : 0x%d not recognized, assuming %d ports\n",
> - omap->usbhs_rev, omap->nports);
> - break;
> + /*
> + * If platform data contains nports then use that
> + * else make out number of ports from USBHS revision
> + */
> + if (pdata->nports) {
> + omap->nports = pdata->nports;
> + } else {
> + switch (omap->usbhs_rev) {
> + case OMAP_USBHS_REV1:
> + omap->nports = 3;
> + break;
> + case OMAP_USBHS_REV2:
> + omap->nports = 2;
> + break;
> + default:
> + omap->nports = OMAP3_HS_USB_PORTS;
> + dev_dbg(dev,
> + "USB HOST Rev:0x%d not recognized, assuming %d ports\n",
> + omap->usbhs_rev, omap->nports);
> + break;
> + }
> }
>
> for (i = 0; i < omap->nports; i++)
> --
> 1.7.4.1
>
> --
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