Hi,
On Mon, Nov 25, 2013 at 08:39:49PM +0100, Daniel Mack wrote:
> It appears not all platforms featuring a musb core need to save the musb
> core registers at suspend time and restore them on resume.
>
> The dsps platform does, however. So add a bit in struct
> musb_hdrc_platform_data to let platforms specify their need of such
> action being taken.
>
> Signed-off-by: Daniel Mack <zonque@xxxxxxxxx>
> ---
> drivers/usb/musb/musb_core.c | 17 ++++++++++++++++-
> include/linux/usb/musb.h | 3 +++
> 2 files changed, 19 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
> index 0a43329..a8ded57 100644
> --- a/drivers/usb/musb/musb_core.c
> +++ b/drivers/usb/musb/musb_core.c
> @@ -2202,6 +2202,7 @@ static int musb_suspend(struct device *dev)
> {
> struct musb *musb = dev_to_musb(dev);
> unsigned long flags;
> + struct musb_hdrc_platform_data *plat = dev_get_platdata(dev);
we don't want to have platform_data on DT-based boot. It's best to just
save those registers unconditionally as it doesn't hurt.
--
balbi
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