diff options
| author | Roger Quadros <rogerq@ti.com> | 2012-11-08 18:18:08 +0100 |
|---|---|---|
| committer | Roger Quadros <rogerq@ti.com> | 2013-02-13 12:22:49 +0100 |
| commit | ccac71a7f063ad31eb99fac37e95b70ff57f1354 (patch) | |
| tree | 22c7f8034f204cc793e14fec5635f509a6c6e311 /drivers/mfd | |
| parent | mfd: omap-usb-host: know about number of ports from revision register (diff) | |
| download | linux-ccac71a7f063ad31eb99fac37e95b70ff57f1354.tar.xz linux-ccac71a7f063ad31eb99fac37e95b70ff57f1354.zip | |
mfd: omap-usb-host: override number of ports from platform data
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@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/omap-usb-host.c | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 26319ca72e38..779588be8ab2 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -493,19 +493,27 @@ static int 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++) |