Re: [RESEND,v3,2/2] ufs: poll HCS.UCRDY before issuing a UIC command

[Chanwoo Lee]

On 9/04/23 5:31 PM, cw9316.lee@xxxxxxxxxxx wrote:
> With auto hibern8 enabled, UIC could be working
> for a while to process a hibern8 operation and HCI
> reports UIC not ready for a short term through HCS.UCRDY.
> And UFS driver can't recognize the operation.
> UFSHCI spec specifies UCRDY like this:
> whether the host controller is ready to process UIC COMMAND
> 
> The 'ready' could be seen as many different meanings. If the meaning
> includes not processing any request from HCI, processing a hibern8
> operation can be 'not ready'. In this situation, the driver needs to
> wait until the operations is completed.
> 
> Signed-off-by: Kiwoong Kim <kwmad.kim@xxxxxxxxxxx>
> Reviewed-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---

Reviewed-by: Junwoo Lee <junwoo80.lee@xxxxxxxxxxx>
Reviewed-by: Chanwoo Lee <cw9316.lee@xxxxxxxxxxx>