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mfd: ti_am335x_tscadc: Unify variable naming when referencing ti_tscadc_dev 

All functions in this driver reference the same ti_tscadc_dev per device
but use several different names for this structure pointer, this can
be confusing when following the code. Use the name 'tscadc' everywhere.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Andrew F. Davis 2016-06-08 10:54:34 -05:00 committed by Lee Jones
parent 3df140d11c
commit a318b7d0fa
1 changed files with 44 additions and 44 deletions
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88
drivers/mfd/ti_am335x_tscadc.c
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@ -34,89 +34,89 @@ static const struct regmap_config tscadc_regmap_config = {
.val_bits = 32,
};
void am335x_tsc_se_set_cache(struct ti_tscadc_dev *tsadc, u32 val)
void am335x_tsc_se_set_cache(struct ti_tscadc_dev *tscadc, u32 val)
{
unsigned long flags;
spin_lock_irqsave(&tsadc->reg_lock, flags);
tsadc->reg_se_cache |= val;
if (tsadc->adc_waiting)
wake_up(&tsadc->reg_se_wait);
else if (!tsadc->adc_in_use)
regmap_write(tsadc->regmap_tscadc, REG_SE, tsadc->reg_se_cache);
spin_lock_irqsave(&tscadc->reg_lock, flags);
tscadc->reg_se_cache |= val;
if (tscadc->adc_waiting)
wake_up(&tscadc->reg_se_wait);
else if (!tscadc->adc_in_use)
regmap_write(tscadc->regmap_tscadc, REG_SE, tscadc->reg_se_cache);
spin_unlock_irqrestore(&tsadc->reg_lock, flags);
spin_unlock_irqrestore(&tscadc->reg_lock, flags);
}
EXPORT_SYMBOL_GPL(am335x_tsc_se_set_cache);
static void am335x_tscadc_need_adc(struct ti_tscadc_dev *tsadc)
static void am335x_tscadc_need_adc(struct ti_tscadc_dev *tscadc)
{
DEFINE_WAIT(wait);
u32 reg;
regmap_read(tsadc->regmap_tscadc, REG_ADCFSM, &reg);
regmap_read(tscadc->regmap_tscadc, REG_ADCFSM, &reg);
if (reg & SEQ_STATUS) {
tsadc->adc_waiting = true;
prepare_to_wait(&tsadc->reg_se_wait, &wait,
tscadc->adc_waiting = true;
prepare_to_wait(&tscadc->reg_se_wait, &wait,
TASK_UNINTERRUPTIBLE);
spin_unlock_irq(&tsadc->reg_lock);
spin_unlock_irq(&tscadc->reg_lock);
schedule();
spin_lock_irq(&tsadc->reg_lock);
finish_wait(&tsadc->reg_se_wait, &wait);
spin_lock_irq(&tscadc->reg_lock);
finish_wait(&tscadc->reg_se_wait, &wait);
/*
* Sequencer should either be idle or
* busy applying the charge step.
*/
regmap_read(tsadc->regmap_tscadc, REG_ADCFSM, &reg);
regmap_read(tscadc->regmap_tscadc, REG_ADCFSM, &reg);
WARN_ON((reg & SEQ_STATUS) && !(reg & CHARGE_STEP));
tsadc->adc_waiting = false;
tscadc->adc_waiting = false;
}
tsadc->adc_in_use = true;
tscadc->adc_in_use = true;
}
void am335x_tsc_se_set_once(struct ti_tscadc_dev *tsadc, u32 val)
void am335x_tsc_se_set_once(struct ti_tscadc_dev *tscadc, u32 val)
{
spin_lock_irq(&tsadc->reg_lock);
am335x_tscadc_need_adc(tsadc);
spin_lock_irq(&tscadc->reg_lock);
am335x_tscadc_need_adc(tscadc);
regmap_write(tsadc->regmap_tscadc, REG_SE, val);
spin_unlock_irq(&tsadc->reg_lock);
regmap_write(tscadc->regmap_tscadc, REG_SE, val);
spin_unlock_irq(&tscadc->reg_lock);
}
EXPORT_SYMBOL_GPL(am335x_tsc_se_set_once);
void am335x_tsc_se_adc_done(struct ti_tscadc_dev *tsadc)
void am335x_tsc_se_adc_done(struct ti_tscadc_dev *tscadc)
{
unsigned long flags;
spin_lock_irqsave(&tsadc->reg_lock, flags);
tsadc->adc_in_use = false;
regmap_write(tsadc->regmap_tscadc, REG_SE, tsadc->reg_se_cache);
spin_unlock_irqrestore(&tsadc->reg_lock, flags);
spin_lock_irqsave(&tscadc->reg_lock, flags);
tscadc->adc_in_use = false;
regmap_write(tscadc->regmap_tscadc, REG_SE, tscadc->reg_se_cache);
spin_unlock_irqrestore(&tscadc->reg_lock, flags);
}
EXPORT_SYMBOL_GPL(am335x_tsc_se_adc_done);
void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val)
void am335x_tsc_se_clr(struct ti_tscadc_dev *tscadc, u32 val)
{
unsigned long flags;
spin_lock_irqsave(&tsadc->reg_lock, flags);
tsadc->reg_se_cache &= ~val;
regmap_write(tsadc->regmap_tscadc, REG_SE, tsadc->reg_se_cache);
spin_unlock_irqrestore(&tsadc->reg_lock, flags);
spin_lock_irqsave(&tscadc->reg_lock, flags);
tscadc->reg_se_cache &= ~val;
regmap_write(tscadc->regmap_tscadc, REG_SE, tscadc->reg_se_cache);
spin_unlock_irqrestore(&tscadc->reg_lock, flags);
}
EXPORT_SYMBOL_GPL(am335x_tsc_se_clr);
static void tscadc_idle_config(struct ti_tscadc_dev *config)
static void tscadc_idle_config(struct ti_tscadc_dev *tscadc)
{
unsigned int idleconfig;
idleconfig = STEPCONFIG_YNN | STEPCONFIG_INM_ADCREFM |
STEPCONFIG_INP_ADCREFM | STEPCONFIG_YPN;
regmap_write(config->regmap_tscadc, REG_IDLECONFIG, idleconfig);
regmap_write(tscadc->regmap_tscadc, REG_IDLECONFIG, idleconfig);
}
static int ti_tscadc_probe(struct platform_device *pdev)
@ -297,9 +297,9 @@ static int ti_tscadc_remove(struct platform_device *pdev)
static int __maybe_unused tscadc_suspend(struct device *dev)
{
struct ti_tscadc_dev *tscadc_dev = dev_get_drvdata(dev);
struct ti_tscadc_dev *tscadc = dev_get_drvdata(dev);
regmap_write(tscadc_dev->regmap_tscadc, REG_SE, 0x00);
regmap_write(tscadc->regmap_tscadc, REG_SE, 0x00);
pm_runtime_put_sync(dev);
return 0;
@ -307,26 +307,26 @@ static int __maybe_unused tscadc_suspend(struct device *dev)
static int __maybe_unused tscadc_resume(struct device *dev)
{
struct ti_tscadc_dev *tscadc_dev = dev_get_drvdata(dev);
struct ti_tscadc_dev *tscadc = dev_get_drvdata(dev);
u32 ctrl;
pm_runtime_get_sync(dev);
/* context restore */
ctrl = CNTRLREG_STEPCONFIGWRT | CNTRLREG_STEPID;
regmap_write(tscadc_dev->regmap_tscadc, REG_CTRL, ctrl);
regmap_write(tscadc->regmap_tscadc, REG_CTRL, ctrl);
if (tscadc_dev->tsc_cell != -1) {
if (tscadc_dev->tsc_wires == 5)
if (tscadc->tsc_cell != -1) {
if (tscadc->tsc_wires == 5)
ctrl |= CNTRLREG_5WIRE | CNTRLREG_TSCENB;
else
ctrl |= CNTRLREG_4WIRE | CNTRLREG_TSCENB;
tscadc_idle_config(tscadc_dev);
tscadc_idle_config(tscadc);
}
ctrl |= CNTRLREG_TSCSSENB;
regmap_write(tscadc_dev->regmap_tscadc, REG_CTRL, ctrl);
regmap_write(tscadc->regmap_tscadc, REG_CTRL, ctrl);
regmap_write(tscadc_dev->regmap_tscadc, REG_CLKDIV, tscadc_dev->clk_div);
regmap_write(tscadc->regmap_tscadc, REG_CLKDIV, tscadc->clk_div);
return 0;
}