Re: [PATCH v1 06/17] scsi :ufs: verify hba controller hce reg value

[Akinobu Mita]

2015-09-13 23:52 GMT+09:00 Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>:
> Sometimes due to hw issues it takes some time to the
> host controller register to update. In order to verify the register
> has updated, a polling is done until its value is set.
>
> In addition the functions ufshcd_hba_stop() and
> ufshcd_wait_for_register() was updated with an additional input
> parameter, indicating the timeout between reads will
> be done by sleeping or spinning the cpu.
>
> Signed-off-by: Raviv Shvili <rshvili@xxxxxxxxxxxxxx>
> Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
>
> ---
>  drivers/scsi/ufs/ufshcd.c | 54 ++++++++++++++++++++++++++++-------------------
>  drivers/scsi/ufs/ufshcd.h | 12 +++--------
>  2 files changed, 35 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index 6171da8..e5a876c 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -267,11 +267,12 @@ static inline void ufshcd_disable_irq(struct ufs_hba *hba)
>   * @val - wait condition
>   * @interval_us - polling interval in microsecs
>   * @timeout_ms - timeout in millisecs
> - *
> + * @can_sleep - perform sleep or just spin
>   * Returns -ETIMEDOUT on error, zero on success
>   */

We usually put a blank line between @argument description and
return value description.
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