lkml.org 
[lkml]   [2020]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RFC] Toggle fifo write clk after ungating sdcc clk
On Thu 20 Feb 01:20 PST 2020, Sayali Lokhande wrote:

> During GCC level clock gating of MCLK, the async FIFO
> gets into some hang condition, such that for the next
> transfer after MCLK ungating, first bit of CMD response
> doesn't get written in to the FIFO. This cause the CPSM
> to hang eventually leading to SW timeout.
>
> To fix the issue, toggle the FIFO write clock after
> MCLK ungated to get the FIFO pointers and flags to
> valid states.
>

Please don't provide cover letters for a single patch.

Regards,
Bjorn

> Ram Prakash Gupta (1):
> mmc: sdhci-msm: Toggle fifo write clk after ungating sdcc clk
>
> drivers/mmc/host/sdhci-msm.c | 43 +++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project

\
 
 \ /
  Last update: 2020-02-20 16:53    [W:3.336 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site