[PATCH v3 8/8] pwm: lpss: Add a comment to the bypass field

Andy Shevchenko
2022-09-27T14:50:24Z

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>
---
drivers/pwm/pwm-lpss.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h
index 839622964b2a..0249c01befd5 100644
--- a/drivers/pwm/pwm-lpss.h
+++ b/drivers/pwm/pwm-lpss.h
@@ -29,6 +29,11 @@ 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
--
2.35.1