pwm: rockchip: simplify to one wave_table configuration instead of duty_table and period_table

For wave mode, the duty and period share memory to update, so it is
sufficient to config &rockchip_pwm_wave_config.wave_table and set
&rockchip_pwm_wave_config.duty_*/&rockchip_pwm_wave_config.period_*
for the update of duty and period.

Change-Id: Ide133377991a9a6c2c26c4de4cb91040f6a7eadd
Signed-off-by: Damon Ding <[email protected]>

Author: Damon Ding

drivers/pwm/pwm-rockchip.c

@@ -1676,18 +1676,8 @@ int rockchip_pwm_set_wave(struct pwm_device *pwm, struct rockchip_pwm_wave_confi
 		}
 	}
 
-	if (config->duty_table) {
-		ret = pc->data->funcs.set_wave_table(chip, pwm, config->duty_table,
-						     config->width_mode);
-		if (ret) {
-			dev_err(chip->dev, "Failed to set wave duty table for PWM%d\n",
-				pc->channel_id);
-			goto err_disable_clk_osc;
-		}
-	}
-
-	if (config->period_table) {
-		ret = pc->data->funcs.set_wave_table(chip, pwm, config->period_table,
+	if (config->wave_table) {
+		ret = pc->data->funcs.set_wave_table(chip, pwm, config->wave_table,
 						     config->width_mode);
 		if (ret) {
 			dev_err(chip->dev, "Failed to set wave period table for PWM%d\n",

include/linux/pwm-rockchip.h

@@ -99,8 +99,7 @@ enum rockchip_pwm_wave_update_mode {
 
 /**
  * struct rockchip_pwm_wave_config - wave generator config object
- * @duty_table: the wave table config of duty
- * @period_table: the wave table config of period
+ * @wave_table: the wave table config
  * @clk_src: the clk src selection in wave generator mode
  * @mem_clk_src: the memory clk src selection in wave generator mode
  * @width_mode: the width mode of wave table
@@ -121,8 +120,7 @@ enum rockchip_pwm_wave_update_mode {
  * @middle_hold: the time to stop at middle address
  */
 struct rockchip_pwm_wave_config {
-	struct rockchip_pwm_wave_table *duty_table;
-	struct rockchip_pwm_wave_table *period_table;
+	struct rockchip_pwm_wave_table *wave_table;
 	enum rockchip_pwm_clk_src_sel clk_src;
 	enum rockchip_pwm_clk_src_sel mem_clk_src;
 	enum rockchip_pwm_wave_table_width_mode width_mode;