pwm_mediatek_clk_enable
ret = pwm_mediatek_clk_enable(pc, pwm->hwpwm);
ret = pwm_mediatek_clk_enable(pc, pwm->hwpwm);
ret = pwm_mediatek_clk_enable(pc, pwm->hwpwm);
ret = pwm_mediatek_clk_enable(pc, hwpwm);