From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org
Cc: "Thierry Reding" <thierry.reding@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Subject: [PATCH v1 8/9] pwm: lpss: Add a comment to the bypass field
Date: Tue, 6 Sep 2022 22:57:34 +0300 [thread overview]
Message-ID: <20220906195735.87361-8-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20220906195735.87361-1-andriy.shevchenko@linux.intel.com>
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>
---
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 832cb86996d7..35e570067fc6 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
next prev parent reply other threads:[~2022-09-06 20:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-06 19:57 [PATCH v1 1/9] pwm: lpss: Deduplicate board info data structures Andy Shevchenko
2022-09-06 19:57 ` [PATCH v1 2/9] pwm: lpss: Move exported symbols to PWM_LPSS namespace Andy Shevchenko
2022-09-07 9:11 ` Uwe Kleine-König
2022-09-07 14:21 ` Andy Shevchenko
2022-09-07 17:00 ` Andy Shevchenko
2022-09-07 17:14 ` Andy Shevchenko
2022-09-06 19:57 ` [PATCH v1 3/9] pwm: lpss: Move resource mapping to the glue drivers Andy Shevchenko
2022-09-06 19:57 ` [PATCH v1 4/9] pwm: lpss: Include headers we are direct user of Andy Shevchenko
2022-09-07 9:13 ` Uwe Kleine-König
2022-09-07 14:23 ` Andy Shevchenko
2022-09-06 19:57 ` [PATCH v1 5/9] pwm: lpss: Use device_get_match_data to get device data Andy Shevchenko
2022-09-06 19:57 ` [PATCH v1 6/9] pwm: lpss: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros Andy Shevchenko
2022-09-06 19:57 ` [PATCH v1 7/9] pwm: lpss: Make use of bits.h macros for all masks Andy Shevchenko
2022-09-06 19:57 ` Andy Shevchenko [this message]
2022-09-06 19:57 ` [PATCH v1 9/9] pwm: lpss: Allow other drivers to enable PWM LPSS Andy Shevchenko
2022-09-07 9:04 ` [PATCH v1 1/9] pwm: lpss: Deduplicate board info data structures Uwe Kleine-König
2022-09-07 14:27 ` Andy Shevchenko
2022-09-08 8:25 ` Uwe Kleine-König
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