lkml.org 
[lkml]   [2023]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [RFC PATCH v3 1/5] ufs: mcq: Add supporting functions for mcq abort
From
On 23/03/2023 09:53, Bao D. Nguyen wrote:
> +static int ufshcd_mcq_poll_register(void __iomem *reg, u32 mask,
> + u32 val, unsigned long timeout_ms)
> +{
> + unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
> + int err = 0;
> +
> + /* ignore bits that we don't intend to wait on */
> + val = val & mask;
> +
> + while ((readl(reg) & mask) != val) {
> + usleep_range(10, 50);
> + if (time_after(jiffies, timeout)) {
> + err = -ETIMEDOUT;
> + break;
> + }

This looks just like readl_poll_timeout()

> + }
> +
> + return err;
> +}

\
 
 \ /
  Last update: 2023-03-27 01:13    [W:0.082 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site