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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>
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1 changed files with 0 additions and 9 deletions
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@ -64,7 +64,6 @@ static int pxa_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
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unsigned long long c;
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unsigned long long c;
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unsigned long period_cycles, prescale, pv, dc;
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unsigned long period_cycles, prescale, pv, dc;
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unsigned long offset;
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unsigned long offset;
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int rc;
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offset = pwm->hwpwm ? 0x10 : 0;
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offset = pwm->hwpwm ? 0x10 : 0;
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@ -86,18 +85,10 @@ static int pxa_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
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else
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else
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dc = mul_u64_u64_div_u64(pv + 1, duty_ns, period_ns);
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dc = mul_u64_u64_div_u64(pv + 1, duty_ns, period_ns);
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/* NOTE: the clock to PWM has to be enabled first
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* before writing to the registers
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*/
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rc = clk_prepare_enable(pc->clk);
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if (rc < 0)
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return rc;
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writel(prescale, pc->mmio_base + offset + PWMCR);
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writel(prescale, pc->mmio_base + offset + PWMCR);
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writel(dc, pc->mmio_base + offset + PWMDCR);
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writel(dc, pc->mmio_base + offset + PWMDCR);
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writel(pv, pc->mmio_base + offset + PWMPCR);
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writel(pv, pc->mmio_base + offset + PWMPCR);
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clk_disable_unprepare(pc->clk);
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return 0;
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return 0;
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}
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}
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