drivers/pwm/pwm-mediatek.c

18 #include <linux/pwm.h>
74 				   struct pwm_device *pwm)
87 	ret = clk_prepare_enable(pc->clk_pwms[pwm->hwpwm]);
102 				     struct pwm_device *pwm)
106 	clk_disable_unprepare(pc->clk_pwms[pwm->hwpwm]);
118 static int pwm_mediatek_config(struct pwm_chip *chip, struct pwm_device *pwm,
127 	ret = pwm_mediatek_clk_enable(chip, pwm);
138 	do_div(resolution, clk_get_rate(pc->clk_pwms[pwm->hwpwm]));
149 		pwm_mediatek_clk_disable(chip, pwm);
154 	if (pc->soc->pwm45_fixup && pwm->hwpwm > 2) {
164 	pwm_mediatek_writel(pc, pwm->hwpwm, PWMCON, BIT(15) | clkdiv);
165 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_width, cnt_period);
166 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_thres, cnt_duty);
168 	pwm_mediatek_clk_disable(chip, pwm);
173 static int pwm_mediatek_enable(struct pwm_chip *chip, struct pwm_device *pwm)
179 	ret = pwm_mediatek_clk_enable(chip, pwm);
184 	value |= BIT(pwm->hwpwm);
190 static void pwm_mediatek_disable(struct pwm_chip *chip, struct pwm_device *pwm)
196 	value &= ~BIT(pwm->hwpwm);
199 	pwm_mediatek_clk_disable(chip, pwm);
202 static int pwm_mediatek_apply(struct pwm_chip *chip, struct pwm_device *pwm,
211 		if (pwm->state.enabled)
212 			pwm_mediatek_disable(chip, pwm);
217 	err = pwm_mediatek_config(chip, pwm, state->duty_cycle, state->period);
221 	if (!pwm->state.enabled)
222 		err = pwm_mediatek_enable(chip, pwm);
270 		snprintf(name, sizeof(name), "pwm%d", i + 1);
372 	{ .compatible = "mediatek,mt2712-pwm", .data = &mt2712_pwm_data },
373 	{ .compatible = "mediatek,mt6795-pwm", .data = &mt6795_pwm_data },
374 	{ .compatible = "mediatek,mt7622-pwm", .data = &mt7622_pwm_data },
375 	{ .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data },
376 	{ .compatible = "mediatek,mt7628-pwm", .data = &mt7628_pwm_data },
377 	{ .compatible = "mediatek,mt7629-pwm", .data = &mt7629_pwm_data },
378 	{ .compatible = "mediatek,mt7981-pwm", .data = &mt7981_pwm_data },
379 	{ .compatible = "mediatek,mt7986-pwm", .data = &mt7986_pwm_data },
380 	{ .compatible = "mediatek,mt7988-pwm", .data = &mt7988_pwm_data },
381 	{ .compatible = "mediatek,mt8183-pwm", .data = &mt8183_pwm_data },
382 	{ .compatible = "mediatek,mt8365-pwm", .data = &mt8365_pwm_data },
383 	{ .compatible = "mediatek,mt8516-pwm", .data = &mt8516_pwm_data },
390 		.name = "pwm-mediatek",