On 2024-06-13 1:20 p.m., Jonathan Cameron wrote:
On Tue, 11 Jun 2024 12:52:06 -0400
Trevor Gamblin <tgamblin@xxxxxxxxxxxx> wrote:
Simplify the way regmap is accessed in iio drivers.
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@xxxxxxxxxxxx>
Signed-off-by: Trevor Gamblin <tgamblin@xxxxxxxxxxxx>
Looks like a good change in general. However...
The problem with a change like this is it results in
non trivial backporting if we need to due to a fix in related
code.
As such, whilst it will obviously generate a lot of patches, I'd
like this split up into a series so each patch touches only one driver.
Fine to keep a single patch for the multiple module for a single
device cases though.
Also some very long lines that need the line breaks put back.
Thank you. I'll resubmit as a series of separate patches with those
fixes soon.
Trevor
Jonathan
diff --git a/drivers/iio/accel/msa311.c b/drivers/iio/accel/msa311.c
index b8ddbfd98f11..40e605c57adb 100644
--- a/drivers/iio/accel/msa311.c
+++ b/drivers/iio/accel/msa311.c
@@ -1034,10 +1034,8 @@ static int msa311_chip_init(struct msa311_priv *msa311)
"failed to unmap map0/map1 interrupts\n");
/* Disable all axes by default */
- err = regmap_update_bits(msa311->regs, MSA311_ODR_REG,
- MSA311_GENMASK(F_X_AXIS_DIS) |
- MSA311_GENMASK(F_Y_AXIS_DIS) |
- MSA311_GENMASK(F_Z_AXIS_DIS), 0);
+ err = regmap_clear_bits(msa311->regs, MSA311_ODR_REG,
+ MSA311_GENMASK(F_X_AXIS_DIS) | MSA311_GENMASK(F_Y_AXIS_DIS) | MSA311_GENMASK(F_Z_AXIS_DIS));
Too long
diff --git a/drivers/iio/adc/cpcap-adc.c b/drivers/iio/adc/cpcap-adc.c
index b6c4ef70484e..8fabf748c36b 100644
--- a/drivers/iio/adc/cpcap-adc.c
+++ b/drivers/iio/adc/cpcap-adc.c
@@ -385,9 +385,8 @@ static irqreturn_t cpcap_adc_irq_thread(int irq, void *data)
@@ -424,23 +423,17 @@ static void cpcap_adc_setup_calibrate(struct cpcap_adc *ddata,
if (error)
return;
- error = regmap_update_bits(ddata->reg, CPCAP_REG_ADCC2,
- CPCAP_BIT_ATOX_PS_FACTOR |
- CPCAP_BIT_ADC_PS_FACTOR1 |
- CPCAP_BIT_ADC_PS_FACTOR0,
- 0);
+ error = regmap_clear_bits(ddata->reg, CPCAP_REG_ADCC2,
+ CPCAP_BIT_ATOX_PS_FACTOR | CPCAP_BIT_ADC_PS_FACTOR1 | CPCAP_BIT_ADC_PS_FACTOR0);
That one is over 100!
if (error)
diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index a791ba3a693a..ff1c81553045 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -513,12 +513,8 @@ static irqreturn_t mpu3050_trigger_handler(int irq, void *p)
"FIFO overflow! Emptying and resetting FIFO\n");
fifo_overflow = true;
/* Reset and enable the FIFO */
- ret = regmap_update_bits(mpu3050->map,
- MPU3050_USR_CTRL,
- MPU3050_USR_CTRL_FIFO_EN |
- MPU3050_USR_CTRL_FIFO_RST,
- MPU3050_USR_CTRL_FIFO_EN |
- MPU3050_USR_CTRL_FIFO_RST);
+ ret = regmap_set_bits(mpu3050->map, MPU3050_USR_CTRL,
+ MPU3050_USR_CTRL_FIFO_EN | MPU3050_USR_CTRL_FIFO_RST);
Keep the line break to stay under 80 chars.
@@ -997,11 +991,8 @@ static int mpu3050_drdy_trigger_set_state(struct iio_trigger *trig,
return ret;
/* Reset and enable the FIFO */
- ret = regmap_update_bits(mpu3050->map, MPU3050_USR_CTRL,
- MPU3050_USR_CTRL_FIFO_EN |
- MPU3050_USR_CTRL_FIFO_RST,
- MPU3050_USR_CTRL_FIFO_EN |
- MPU3050_USR_CTRL_FIFO_RST);
+ ret = regmap_set_bits(mpu3050->map, MPU3050_USR_CTRL,
+ MPU3050_USR_CTRL_FIFO_EN | MPU3050_USR_CTRL_FIFO_RST);
For IIO stuff try and stay under 80 chars unless there is a strong
readability argument for going longer. Here there isn't one.
if (ret)
return ret;
