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pwm: pxa: Remove clk enable/disable from pxa_pwm_config 

Now that pxa_pwm_apply always enables the clock first, there is no need
for pxa_pwm_config to do any clock enabling/disabling.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221113233639.24244-4-doug@schmorgal.com
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Doug Brown 2022-12-02 19:35:22 +01:00 committed by Thierry Reding
parent 152f2d1def
commit 939d002b75
1 changed files with 0 additions and 9 deletions
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9
drivers/pwm/pwm-pxa.c
View File

@ -64,7 +64,6 @@ static int pxa_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
unsigned long long c;
unsigned long period_cycles, prescale, pv, dc;
unsigned long offset;
int rc;
offset = pwm->hwpwm ? 0x10 : 0;
@ -86,18 +85,10 @@ static int pxa_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
else
dc = mul_u64_u64_div_u64(pv + 1, duty_ns, period_ns);
/* NOTE: the clock to PWM has to be enabled first
* before writing to the registers
*/
rc = clk_prepare_enable(pc->clk);
if (rc < 0)
return rc;
writel(prescale, pc->mmio_base + offset + PWMCR);
writel(dc, pc->mmio_base + offset + PWMDCR);
writel(pv, pc->mmio_base + offset + PWMPCR);
clk_disable_unprepare(pc->clk);
return 0;
}