On Wed, Mar 28, 2012 at 4:23 PM, Raja, Govindraj <govindraj.raja@xxxxxx> wrote: > On Wed, Mar 28, 2012 at 2:22 PM, Felipe Balbi <balbi@xxxxxx> wrote: >> On Tue, Mar 27, 2012 at 04:08:55PM +0200, Igor Grinberg wrote: >>> When PHY reset pin is connected to a GPIO on external GPIO chip >>> (e.g. I2C), we should not call the gpio_set_value() function, but >>> gpio_set_value_cansleep(). >>> >>> Signed-off-by: Igor Grinberg <grinberg@xxxxxxxxxxxxxx> >> >> Acked-by: Felipe Balbi <balbi@xxxxxx> >> >> Keshava, please give us your tested-by. Patch looks fine to me. > > Tried on beagle-xm where the smsc hub + smsc95xx ethernet controller > relies gpio nreset sequence for initialization. > > Both hub + Ethernet controller get enumerated even after this patch. > > Tested-by: Govindraj.R <govindraj.raja@xxxxxx> > >> Thanks govind. >>> --- >>> This patch depends on the patch from Keshava [1]: >>> ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue >>> >>> [1] http://www.spinics.net/lists/linux-omap/msg66774.html >>> >>> drivers/usb/host/ehci-omap.c | 4 ++-- >>> 1 files changed, 2 insertions(+), 2 deletions(-) >>> >>> diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c >>> index 5c78f9e..26e9241 100644 >>> --- a/drivers/usb/host/ehci-omap.c >>> +++ b/drivers/usb/host/ehci-omap.c >>> @@ -258,10 +258,10 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) >>> udelay(10); >>> >>> if (gpio_is_valid(pdata->reset_gpio_port[0])) >>> - gpio_set_value(pdata->reset_gpio_port[0], 1); >>> + gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1); >>> >>> if (gpio_is_valid(pdata->reset_gpio_port[1])) >>> - gpio_set_value(pdata->reset_gpio_port[1], 1); >>> + gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1); >>> } >>> >>> return 0; >>> -- >>> 1.7.3.4 >>> >> >> -- >> balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
