lkml.org 
[lkml]   [2020]   [Dec]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH RFC v4 1/1] scsi: ufs: Fix ufs power down/on specs violation
From
Date
On Tue, 2020-12-22 at 21:49 +0800, Ziqi Chen wrote:
> As per specs, e.g, JESD220E chapter 7.2, while powering
> off/on the ufs device, RST_N signal and REF_CLK signal
> should be between VSS(Ground) and VCCQ/VCCQ2.
>
> To flexibly control device reset line, refactor the function
> ufschd_vops_device_reset(sturct ufs_hba *hba) to ufshcd_
> vops_device_reset(sturct ufs_hba *hba, bool asserted). The
> new parameter "bool asserted" is used to separate device reset
> line pulling down from pulling up.
>
> Cc: Kiwoong Kim <kwmad.kim@samsung.com>
> Cc: Stanley Chu <stanley.chu@mediatek.com>
> Signed-off-by: Ziqi Chen <ziqichen@codeaurora.org>

Thanks for this fix including ufs-mediatek change as well.

Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Tested-by: Stanley Chu <stanley.chu@mediatek.com>



\
 
 \ /
  Last update: 2020-12-23 10:34    [W:0.106 / U:2.568 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site