18 #include <linux/pwm.h>
22 /* 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
77 				   struct pwm_device *pwm)  in pwm_mediatek_clk_enable()  argument
90 	ret = clk_prepare_enable(pc->clk_pwms[pwm->hwpwm]);  in pwm_mediatek_clk_enable()
105 				     struct pwm_device *pwm)  in pwm_mediatek_clk_disable()  argument
109 	clk_disable_unprepare(pc->clk_pwms[pwm->hwpwm]);  in pwm_mediatek_clk_disable()
121 static int pwm_mediatek_config(struct pwm_chip *chip, struct pwm_device *pwm,  in pwm_mediatek_config()  argument
130 	ret = pwm_mediatek_clk_enable(chip, pwm);  in pwm_mediatek_config()
141 	do_div(resolution, clk_get_rate(pc->clk_pwms[pwm->hwpwm]));  in pwm_mediatek_config()
152 		pwm_mediatek_clk_disable(chip, pwm);  in pwm_mediatek_config()
157 	if (pc->soc->pwm45_fixup && pwm->hwpwm > 2) {  in pwm_mediatek_config()
159 		 * PWM[4,5] has distinct offset for PWMDWIDTH and PWMTHRES  in pwm_mediatek_config()
167 	pwm_mediatek_writel(pc, pwm->hwpwm, PWMCON, BIT(15) | clkdiv);  in pwm_mediatek_config()
168 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_width, cnt_period);  in pwm_mediatek_config()
169 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_thres, cnt_duty);  in pwm_mediatek_config()
171 	pwm_mediatek_clk_disable(chip, pwm);  in pwm_mediatek_config()
176 static int pwm_mediatek_enable(struct pwm_chip *chip, struct pwm_device *pwm)  in pwm_mediatek_enable()  argument
182 	ret = pwm_mediatek_clk_enable(chip, pwm);  in pwm_mediatek_enable()
187 	value |= BIT(pwm->hwpwm);  in pwm_mediatek_enable()
193 static void pwm_mediatek_disable(struct pwm_chip *chip, struct pwm_device *pwm)  in pwm_mediatek_disable()  argument
199 	value &= ~BIT(pwm->hwpwm);  in pwm_mediatek_disable()
202 	pwm_mediatek_clk_disable(chip, pwm);  in pwm_mediatek_disable()
205 static int pwm_mediatek_apply(struct pwm_chip *chip, struct pwm_device *pwm,  in pwm_mediatek_apply()  argument
214 		if (pwm->state.enabled)  in pwm_mediatek_apply()
215 			pwm_mediatek_disable(chip, pwm);  in pwm_mediatek_apply()
220 	err = pwm_mediatek_config(chip, pwm, state->duty_cycle, state->period);  in pwm_mediatek_apply()
224 	if (!pwm->state.enabled)  in pwm_mediatek_apply()
225 		err = pwm_mediatek_enable(chip, pwm);  in pwm_mediatek_apply()
268 		snprintf(name, sizeof(name), "pwm%d", i + 1);  in pwm_mediatek_probe()
365 	{ .compatible = "mediatek,mt2712-pwm", .data = &mt2712_pwm_data },
366 	{ .compatible = "mediatek,mt6795-pwm", .data = &mt6795_pwm_data },
367 	{ .compatible = "mediatek,mt7622-pwm", .data = &mt7622_pwm_data },
368 	{ .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data },
369 	{ .compatible = "mediatek,mt7628-pwm", .data = &mt7628_pwm_data },
370 	{ .compatible = "mediatek,mt7629-pwm", .data = &mt7629_pwm_data },
371 	{ .compatible = "mediatek,mt7981-pwm", .data = &mt7981_pwm_data },
372 	{ .compatible = "mediatek,mt7986-pwm", .data = &mt7986_pwm_data },
373 	{ .compatible = "mediatek,mt8183-pwm", .data = &mt8183_pwm_data },
374 	{ .compatible = "mediatek,mt8365-pwm", .data = &mt8365_pwm_data },
375 	{ .compatible = "mediatek,mt8516-pwm", .data = &mt8516_pwm_data },
382 		.name = "pwm-mediatek",