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serdev: Replace poll loop by readx_poll_timeout() macro

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The readx_poll_timeout() consolidates the necessary code under
macro. Replace current code with it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221114151813.37294-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2022-11-14 17:18:13 +02:00 committed by Greg Kroah-Hartman
parent 24ce048b0d
commit 96e8298945
1 changed files with 3 additions and 10 deletions
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13
include/linux/serdev.h
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@ -7,6 +7,7 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/device.h> #include <linux/device.h>
#include <linux/iopoll.h>
#include <linux/uaccess.h> #include <linux/uaccess.h>
#include <linux/termios.h> #include <linux/termios.h>
#include <linux/delay.h> #include <linux/delay.h>
@ -279,18 +280,10 @@ static inline bool serdev_device_get_cts(struct serdev_device *serdev)
static inline int serdev_device_wait_for_cts(struct serdev_device *serdev, bool state, int timeout_ms) static inline int serdev_device_wait_for_cts(struct serdev_device *serdev, bool state, int timeout_ms)
{ {
unsigned long timeout;
bool signal; bool signal;
timeout = jiffies + msecs_to_jiffies(timeout_ms); return readx_poll_timeout(serdev_device_get_cts, serdev, signal, signal == state,
while (time_is_after_jiffies(timeout)) { 2000, timeout_ms * 1000);
signal = serdev_device_get_cts(serdev);
if (signal == state)
return 0;
usleep_range(1000, 2000);
}
return -ETIMEDOUT;
} }
static inline int serdev_device_set_rts(struct serdev_device *serdev, bool enable) static inline int serdev_device_set_rts(struct serdev_device *serdev, bool enable)