On Wed, 3 Oct 2012, Florian Fainelli wrote:
> And convert all the existing users of ehci-platform to specify a correct
> need_io_watchdog value.
IMO (and I realize that not everybody agrees), the patch description
should not be considered an extension of the patch title, as though the
title were the first sentence and the description the remainder of the
same paragraph. Descriptions should stand on their own and be
comprehensible even to somebody who hasn't read the title.
> Signed-off-by: Florian Fainelli <firstname.lastname@example.org>
> arch/mips/ath79/dev-usb.c | 2 ++
> arch/mips/loongson1/common/platform.c | 1 +
> arch/mips/netlogic/xlr/platform.c | 1 +
> drivers/usb/host/bcma-hcd.c | 1 +
> drivers/usb/host/ehci-platform.c | 1 +
> drivers/usb/host/ssb-hcd.c | 1 +
> include/linux/usb/ehci_pdriver.h | 3 +++
> 7 files changed, 10 insertions(+)
More importantly... Nearly every driver will have need_io_watchdog
set. Only a few of them explicitly turn it off. The approach you're
using puts an extra burden on most of the drivers.
> diff --git a/drivers/usb/host/ehci-platform.c
> index 764e010..08d5dec 100644
> --- a/drivers/usb/host/ehci-platform.c
> +++ b/drivers/usb/host/ehci-platform.c
> @@ -32,6 +32,7 @@ static int ehci_platform_reset(struct usb_hcd *hcd)
> ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug;
> ehci->big_endian_desc = pdata->big_endian_desc;
> ehci->big_endian_mmio = pdata->big_endian_mmio;
> + ehci->need_io_watchdog = pdata->need_io_watchdog;
> --- a/include/linux/usb/ehci_pdriver.h
> +++ b/include/linux/usb/ehci_pdriver.h
> @@ -29,6 +29,8 @@
> * initialization.
> * @port_power_off: set to 1 if the controller needs to be powered down
> * after initialization.
> + * @need_io_watchdog: set to 1 if the controller needs the I/O
> watchdog to
> + * run.
Instead, how about adding a no_io_watchdog flag? Then after
ehci-platform.c calls ehci_setup(), it can see whether to turn off
This way, most of this patch would become unnecessary.