diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-09-27 19:24:21 +0300 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2022-09-28 16:21:46 +0200 |
| commit | d632e864351ac3df3ab4bb224ba27b0634ce93be (patch) | |
| tree | cc61605b578e26acc3c8a67999e386fe2b240bd9 /drivers/pwm | |
| parent | 4fdb3281bb8479ea0c41e6be0af5dcab669f9eb9 (diff) | |
pwm: lpss: Add a comment to the bypass field
Add a comment to the bypass field based on the commit b997e3edca4f
("pwm: lpss: Set enable-bit before waiting for update-bit
to go low").
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-lpss.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h index c344921b2cab..8e82eb5a7e00 100644 --- a/drivers/pwm/pwm-lpss.h +++ b/drivers/pwm/pwm-lpss.h @@ -25,6 +25,11 @@ struct pwm_lpss_boardinfo { unsigned long clk_rate; unsigned int npwm; unsigned long base_unit_bits; + /* + * Some versions of the IP may stuck in the state machine if enable + * bit is not set, and hence update bit will show busy status till + * the reset. For the rest it may be otherwise. + */ bool bypass; /* * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device |