49 static void rcar_pwm_write(struct rcar_pwm_chip *rp, u32 data,  in rcar_pwm_write()  argument
52 	writel(data, rp->base + offset);  in rcar_pwm_write()
55 static u32 rcar_pwm_read(struct rcar_pwm_chip *rp, unsigned int offset)  in rcar_pwm_read()  argument
57 	return readl(rp->base + offset);  in rcar_pwm_read()
60 static void rcar_pwm_update(struct rcar_pwm_chip *rp, u32 mask, u32 data,  in rcar_pwm_update()  argument
65 	value = rcar_pwm_read(rp, offset);  in rcar_pwm_update()
68 	rcar_pwm_write(rp, value, offset);  in rcar_pwm_update()
71 static int rcar_pwm_get_clock_division(struct rcar_pwm_chip *rp, int period_ns)  in rcar_pwm_get_clock_division()  argument
73 	unsigned long clk_rate = clk_get_rate(rp->clk);  in rcar_pwm_get_clock_division()
91 static void rcar_pwm_set_clock_control(struct rcar_pwm_chip *rp,  in rcar_pwm_set_clock_control()  argument
96 	value = rcar_pwm_read(rp, RCAR_PWMCR);  in rcar_pwm_set_clock_control()
105 	rcar_pwm_write(rp, value, RCAR_PWMCR);  in rcar_pwm_set_clock_control()
108 static int rcar_pwm_set_counter(struct rcar_pwm_chip *rp, int div, int duty_ns,  in rcar_pwm_set_counter()  argument
112 	unsigned long clk_rate = clk_get_rate(rp->clk);  in rcar_pwm_set_counter()
130 	rcar_pwm_write(rp, cyc | ph, RCAR_PWMCNT);  in rcar_pwm_set_counter()
137 	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);  in rcar_pwm_request()  local
139 	return clk_prepare_enable(rp->clk);  in rcar_pwm_request()
144 	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);  in rcar_pwm_free()  local
146 	clk_disable_unprepare(rp->clk);  in rcar_pwm_free()
152 	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);  in rcar_pwm_config()  local
155 	div = rcar_pwm_get_clock_division(rp, period_ns);  in rcar_pwm_config()
163 	rcar_pwm_update(rp, RCAR_PWMCR_SYNC, RCAR_PWMCR_SYNC, RCAR_PWMCR);  in rcar_pwm_config()
165 	ret = rcar_pwm_set_counter(rp, div, duty_ns, period_ns);  in rcar_pwm_config()
167 		rcar_pwm_set_clock_control(rp, div);  in rcar_pwm_config()
170 	rcar_pwm_update(rp, RCAR_PWMCR_SYNC, 0, RCAR_PWMCR);  in rcar_pwm_config()
177 	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);  in rcar_pwm_enable()  local
181 	value = rcar_pwm_read(rp, RCAR_PWMCNT);  in rcar_pwm_enable()
186 	rcar_pwm_update(rp, RCAR_PWMCR_EN0, RCAR_PWMCR_EN0, RCAR_PWMCR);  in rcar_pwm_enable()
193 	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);  in rcar_pwm_disable()  local
195 	rcar_pwm_update(rp, RCAR_PWMCR_EN0, 0, RCAR_PWMCR);  in rcar_pwm_disable()