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;
+}
