[PATCH v5 28/46] regulator: pwm: swith to the atomic PWM API
From: Boris Brezillon <hidden>
Date: 2016-03-30 20:12:25
Also in:
dri-devel, intel-gfx, linux-clk, linux-fbdev, linux-input, linux-leds, linux-pwm, linux-rockchip, linux-samsung-soc, lkml
Subsystem:
the rest, voltage and current regulator framework · Maintainers:
Linus Torvalds, Liam Girdwood, Mark Brown
pwm_config/enable/disable() have been deprecated in favor of pwm_apply_state(). Replace all those calls with the equivalent pwm_get/apply_state(). Signed-off-by: Boris Brezillon <redacted> --- drivers/regulator/pwm-regulator.c | 54 ++++++++++++++++++++++++--------------- 1 file changed, 34 insertions(+), 20 deletions(-)
diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c
index 9590fb0..42cc312 100644
--- a/drivers/regulator/pwm-regulator.c
+++ b/drivers/regulator/pwm-regulator.c@@ -59,16 +59,18 @@ static int pwm_regulator_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); - struct pwm_args pargs = { }; - int dutycycle; + struct pwm_state pstate = { }; + u64 dutycycle; int ret; - pwm_get_args(drvdata->pwm, &pargs); + pwm_get_state(drvdata->pwm, &pstate); - dutycycle = (pargs.period * - drvdata->duty_cycle_table[selector].dutycycle) / 100; + dutycycle = drvdata->duty_cycle_table[selector].dutycycle; + dutycycle *= pstate.period; + do_div(dutycycle, 100); + pstate.duty_cycle = dutycycle; - ret = pwm_config(drvdata->pwm, dutycycle, pargs.period); + ret = pwm_apply_state(drvdata->pwm, &pstate); if (ret) { dev_err(&rdev->dev, "Failed to configure PWM\n"); return ret;
@@ -93,24 +95,39 @@ static int pwm_regulator_list_voltage(struct regulator_dev *rdev, static int pwm_regulator_enable(struct regulator_dev *dev) { struct pwm_regulator_data *drvdata = rdev_get_drvdata(dev); + struct pwm_state pstate = { }; + + pwm_get_state(drvdata->pwm, &pstate); + if (pstate.enabled) + return 0; + + pstate.enabled = true; - return pwm_enable(drvdata->pwm); + return pwm_apply_state(drvdata->pwm, &pstate); } static int pwm_regulator_disable(struct regulator_dev *dev) { struct pwm_regulator_data *drvdata = rdev_get_drvdata(dev); + struct pwm_state pstate = { }; - pwm_disable(drvdata->pwm); + pwm_get_state(drvdata->pwm, &pstate); + if (!pstate.enabled) + return 0; - return 0; + pstate.enabled = false; + + return pwm_apply_state(drvdata->pwm, &pstate); } static int pwm_regulator_is_enabled(struct regulator_dev *dev) { struct pwm_regulator_data *drvdata = rdev_get_drvdata(dev); + struct pwm_state pstate = { }; - return pwm_is_enabled(drvdata->pwm); + pwm_get_state(drvdata->pwm, &pstate); + + return pstate.enabled; } /**
@@ -138,25 +155,22 @@ static int pwm_regulator_set_voltage(struct regulator_dev *rdev, { struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); unsigned int ramp_delay = rdev->constraints->ramp_delay; - struct pwm_args pargs = { }; - int duty_cycle; + struct pwm_state pstate = { }; + u64 duty_cycle; int ret; - pwm_get_args(drvdata->pwm, &pargs); + pwm_get_state(drvdata->pwm, &pstate); duty_cycle = pwm_voltage_to_duty_cycle_percentage(rdev, min_uV); + duty_cycle *= pstate.period; + do_div(duty_cycle, 100); + pstate.duty_cycle = duty_cycle; - ret = pwm_config(drvdata->pwm, (pargs.period / 100) * duty_cycle, - pargs.period); + ret = pwm_apply_state(drvdata->pwm, &pstate); if (ret) { dev_err(&rdev->dev, "Failed to configure PWM\n"); return ret; } - ret = pwm_enable(drvdata->pwm); - if (ret) { - dev_err(&rdev->dev, "Failed to enable PWM\n"); - return ret; - } drvdata->volt_uV = min_uV; /* Delay required by PWM regulator to settle to the new voltage */
--
2.5.0