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Message-Id: <20240617-review-v3-41-88d1338c4cca@baylibre.com>
Date: Mon, 17 Jun 2024 09:50:21 -0400
From: Trevor Gamblin <tgamblin@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Dmitry Rokosov <ddrokosov@...rdevices.ru>,
Michael Hennerich <Michael.Hennerich@...log.com>,
Cosmin Tanislav <cosmin.tanislav@...log.com>, Chen-Yu Tsai <wens@...e.org>,
Hans de Goede <hdegoede@...hat.com>, Ray Jui <rjui@...adcom.com>,
Scott Branden <sbranden@...adcom.com>,
Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
Saravanan Sekar <sravanhome@...il.com>, Orson Zhai <orsonzhai@...il.com>,
Baolin Wang <baolin.wang@...ux.alibaba.com>,
Chunyan Zhang <zhang.lyra@...il.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Nuno Sá <nuno.sa@...log.com>,
Linus Walleij <linus.walleij@...aro.org>,
Jean-Baptiste Maneyrol <jmaneyrol@...ensense.com>,
Crt Mori <cmo@...exis.com>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev,
linux-amlogic@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
Uwe Kleine-König <u.kleine-koenig@...libre.com>,
Trevor Gamblin <tgamblin@...libre.com>
Subject: [PATCH v3 41/41] iio: trigger: stm32-timer-trigger: make use of
regmap_clear_bits(), regmap_set_bits()
Instead of using regmap_update_bits() and passing the mask twice, use
regmap_set_bits().
Instead of using regmap_update_bits() and passing val = 0, use
regmap_clear_bits().
Suggested-by: Uwe Kleine-König <u.kleine-koenig@...libre.com>
Signed-off-by: Trevor Gamblin <tgamblin@...libre.com>
---
drivers/iio/trigger/stm32-timer-trigger.c | 34 +++++++++++++++----------------
1 file changed, 16 insertions(+), 18 deletions(-)
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index d76444030a28..0684329956d9 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -158,7 +158,7 @@ static int stm32_timer_start(struct stm32_timer_trigger *priv,
regmap_write(priv->regmap, TIM_PSC, prescaler);
regmap_write(priv->regmap, TIM_ARR, prd - 1);
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, TIM_CR1_ARPE);
+ regmap_set_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE);
/* Force master mode to update mode */
if (stm32_timer_is_trgo2_name(trig->name))
@@ -169,10 +169,10 @@ static int stm32_timer_start(struct stm32_timer_trigger *priv,
0x2 << TIM_CR2_MMS_SHIFT);
/* Make sure that registers are updated */
- regmap_update_bits(priv->regmap, TIM_EGR, TIM_EGR_UG, TIM_EGR_UG);
+ regmap_set_bits(priv->regmap, TIM_EGR, TIM_EGR_UG);
/* Enable controller */
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN, TIM_CR1_CEN);
+ regmap_set_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN);
mutex_unlock(&priv->lock);
return 0;
@@ -189,19 +189,19 @@ static void stm32_timer_stop(struct stm32_timer_trigger *priv,
mutex_lock(&priv->lock);
/* Stop timer */
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, 0);
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN, 0);
+ regmap_clear_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE);
+ regmap_clear_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN);
regmap_write(priv->regmap, TIM_PSC, 0);
regmap_write(priv->regmap, TIM_ARR, 0);
/* Force disable master mode */
if (stm32_timer_is_trgo2_name(trig->name))
- regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2, 0);
+ regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
else
- regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS, 0);
+ regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS);
/* Make sure that registers are updated */
- regmap_update_bits(priv->regmap, TIM_EGR, TIM_EGR_UG, TIM_EGR_UG);
+ regmap_set_bits(priv->regmap, TIM_EGR, TIM_EGR_UG);
if (priv->enabled) {
priv->enabled = false;
@@ -498,11 +498,9 @@ static int stm32_counter_write_raw(struct iio_dev *indio_dev,
priv->enabled = true;
clk_enable(priv->clk);
}
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN,
- TIM_CR1_CEN);
+ regmap_set_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN);
} else {
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN,
- 0);
+ regmap_clear_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN);
if (priv->enabled) {
priv->enabled = false;
clk_disable(priv->clk);
@@ -555,7 +553,7 @@ static int stm32_set_trigger_mode(struct iio_dev *indio_dev,
{
struct stm32_timer_trigger *priv = iio_priv(indio_dev);
- regmap_update_bits(priv->regmap, TIM_SMCR, TIM_SMCR_SMS, TIM_SMCR_SMS);
+ regmap_set_bits(priv->regmap, TIM_SMCR, TIM_SMCR_SMS);
return 0;
}
@@ -683,7 +681,7 @@ static ssize_t stm32_count_set_preset(struct iio_dev *indio_dev,
return ret;
/* TIMx_ARR register shouldn't be buffered (ARPE=0) */
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, 0);
+ regmap_clear_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE);
regmap_write(priv->regmap, TIM_ARR, preset);
return len;
@@ -757,9 +755,9 @@ static void stm32_timer_detect_trgo2(struct stm32_timer_trigger *priv)
* Master mode selection 2 bits can only be written and read back when
* timer supports it.
*/
- regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2, TIM_CR2_MMS2);
+ regmap_set_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
regmap_read(priv->regmap, TIM_CR2, &val);
- regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2, 0);
+ regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
priv->has_trgo2 = !!val;
}
@@ -820,7 +818,7 @@ static void stm32_timer_trigger_remove(struct platform_device *pdev)
/* Check if nobody else use the timer, then disable it */
regmap_read(priv->regmap, TIM_CCER, &val);
if (!(val & TIM_CCER_CCXE))
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN, 0);
+ regmap_clear_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN);
if (priv->enabled)
clk_disable(priv->clk);
@@ -841,7 +839,7 @@ static int stm32_timer_trigger_suspend(struct device *dev)
regmap_read(priv->regmap, TIM_SMCR, &priv->bak.smcr);
/* Disable the timer */
- regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN, 0);
+ regmap_clear_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN);
clk_disable(priv->clk);
}
--
2.45.2
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