19 #include <linux/pwm.h>
23 /* PWM registers and bits definitions */
44  * struct pwm_mediatek_chip - struct representing PWM chip
45  * @chip: linux PWM chip representation
46  * @regs: base address of PWM chip
48  * @clk_main: the clock used by PWM core
49  * @clk_pwms: the clock used by each PWM channel
73 				   struct pwm_device *pwm)  in pwm_mediatek_clk_enable()  argument
86 	ret = clk_prepare_enable(pc->clk_pwms[pwm->hwpwm]);  in pwm_mediatek_clk_enable()
101 				     struct pwm_device *pwm)  in pwm_mediatek_clk_disable()  argument
105 	clk_disable_unprepare(pc->clk_pwms[pwm->hwpwm]);  in pwm_mediatek_clk_disable()
117 static int pwm_mediatek_config(struct pwm_chip *chip, struct pwm_device *pwm,  in pwm_mediatek_config()  argument
126 	ret = pwm_mediatek_clk_enable(chip, pwm);  in pwm_mediatek_config()
137 	do_div(resolution, clk_get_rate(pc->clk_pwms[pwm->hwpwm]));  in pwm_mediatek_config()
148 		pwm_mediatek_clk_disable(chip, pwm);  in pwm_mediatek_config()
153 	if (pc->soc->pwm45_fixup && pwm->hwpwm > 2) {  in pwm_mediatek_config()
155 		 * PWM[4,5] has distinct offset for PWMDWIDTH and PWMTHRES  in pwm_mediatek_config()
163 	pwm_mediatek_writel(pc, pwm->hwpwm, PWMCON, BIT(15) | clkdiv);  in pwm_mediatek_config()
164 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_width, cnt_period);  in pwm_mediatek_config()
165 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_thres, cnt_duty);  in pwm_mediatek_config()
167 	pwm_mediatek_clk_disable(chip, pwm);  in pwm_mediatek_config()
172 static int pwm_mediatek_enable(struct pwm_chip *chip, struct pwm_device *pwm)  in pwm_mediatek_enable()  argument
178 	ret = pwm_mediatek_clk_enable(chip, pwm);  in pwm_mediatek_enable()
183 	value |= BIT(pwm->hwpwm);  in pwm_mediatek_enable()
189 static void pwm_mediatek_disable(struct pwm_chip *chip, struct pwm_device *pwm)  in pwm_mediatek_disable()  argument
195 	value &= ~BIT(pwm->hwpwm);  in pwm_mediatek_disable()
198 	pwm_mediatek_clk_disable(chip, pwm);  in pwm_mediatek_disable()
201 static int pwm_mediatek_apply(struct pwm_chip *chip, struct pwm_device *pwm,  in pwm_mediatek_apply()  argument
210 		if (pwm->state.enabled)  in pwm_mediatek_apply()
211 			pwm_mediatek_disable(chip, pwm);  in pwm_mediatek_apply()
216 	err = pwm_mediatek_config(pwm->chip, pwm, state->duty_cycle, state->period);  in pwm_mediatek_apply()
220 	if (!pwm->state.enabled)  in pwm_mediatek_apply()
221 		err = pwm_mediatek_enable(chip, pwm);  in pwm_mediatek_apply()
265 		snprintf(name, sizeof(name), "pwm%d", i + 1);  in pwm_mediatek_probe()
339 	{ .compatible = "mediatek,mt2712-pwm", .data = &mt2712_pwm_data },
340 	{ .compatible = "mediatek,mt6795-pwm", .data = &mt6795_pwm_data },
341 	{ .compatible = "mediatek,mt7622-pwm", .data = &mt7622_pwm_data },
342 	{ .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data },
343 	{ .compatible = "mediatek,mt7628-pwm", .data = &mt7628_pwm_data },
344 	{ .compatible = "mediatek,mt7629-pwm", .data = &mt7629_pwm_data },
345 	{ .compatible = "mediatek,mt8183-pwm", .data = &mt8183_pwm_data },
346 	{ .compatible = "mediatek,mt8365-pwm", .data = &mt8365_pwm_data },
347 	{ .compatible = "mediatek,mt8516-pwm", .data = &mt8516_pwm_data },
354 		.name = "pwm-mediatek",