pwm: Use a consistent name for pwm_chip pointers in the core

Most variables of type struct pwm_chip * are named "chip", there are
only three outliers called "pc". Change these three to "chip", too, for
consistency.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/core.c

@@ -127,28 +127,28 @@ static int pwm_device_request(struct pwm_device *pwm, const char *label)
 }
 
 struct pwm_device *
-of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args)
+of_pwm_xlate_with_flags(struct pwm_chip *chip, const struct of_phandle_args *args)
 {
 	struct pwm_device *pwm;
 
-	if (pc->of_pwm_n_cells < 2)
+	if (chip->of_pwm_n_cells < 2)
 		return ERR_PTR(-EINVAL);
 
 	/* flags in the third cell are optional */
 	if (args->args_count < 2)
 		return ERR_PTR(-EINVAL);
 
-	if (args->args[0] >= pc->npwm)
+	if (args->args[0] >= chip->npwm)
 		return ERR_PTR(-EINVAL);
 
-	pwm = pwm_request_from_chip(pc, args->args[0], NULL);
+	pwm = pwm_request_from_chip(chip, args->args[0], NULL);
 	if (IS_ERR(pwm))
 		return pwm;
 
 	pwm->args.period = args->args[1];
 	pwm->args.polarity = PWM_POLARITY_NORMAL;
 
-	if (pc->of_pwm_n_cells >= 3) {
+	if (chip->of_pwm_n_cells >= 3) {
 		if (args->args_count > 2 && args->args[2] & PWM_POLARITY_INVERTED)
 			pwm->args.polarity = PWM_POLARITY_INVERSED;
 	}
@@ -158,18 +158,18 @@ of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args)
 EXPORT_SYMBOL_GPL(of_pwm_xlate_with_flags);
 
 struct pwm_device *
-of_pwm_single_xlate(struct pwm_chip *pc, const struct of_phandle_args *args)
+of_pwm_single_xlate(struct pwm_chip *chip, const struct of_phandle_args *args)
 {
 	struct pwm_device *pwm;
 
-	if (pc->of_pwm_n_cells < 1)
+	if (chip->of_pwm_n_cells < 1)
 		return ERR_PTR(-EINVAL);
 
 	/* validate that one cell is specified, optionally with flags */
 	if (args->args_count != 1 && args->args_count != 2)
 		return ERR_PTR(-EINVAL);
 
-	pwm = pwm_request_from_chip(pc, 0, NULL);
+	pwm = pwm_request_from_chip(chip, 0, NULL);
 	if (IS_ERR(pwm))
 		return pwm;
 
@@ -692,7 +692,7 @@ static struct pwm_device *of_pwm_get(struct device *dev, struct device_node *np,
 	struct pwm_device *pwm = NULL;
 	struct of_phandle_args args;
 	struct device_link *dl;
-	struct pwm_chip *pc;
+	struct pwm_chip *chip;
 	int index = 0;
 	int err;
 
@@ -709,16 +709,16 @@ static struct pwm_device *of_pwm_get(struct device *dev, struct device_node *np,
 		return ERR_PTR(err);
 	}
 
-	pc = fwnode_to_pwmchip(of_fwnode_handle(args.np));
-	if (IS_ERR(pc)) {
-		if (PTR_ERR(pc) != -EPROBE_DEFER)
+	chip = fwnode_to_pwmchip(of_fwnode_handle(args.np));
+	if (IS_ERR(chip)) {
+		if (PTR_ERR(chip) != -EPROBE_DEFER)
 			pr_err("%s(): PWM chip not found\n", __func__);
 
-		pwm = ERR_CAST(pc);
+		pwm = ERR_CAST(chip);
 		goto put;
 	}
 
-	pwm = pc->of_xlate(pc, &args);
+	pwm = chip->of_xlate(chip, &args);
 	if (IS_ERR(pwm))
 		goto put;
 

include/linux/pwm.h

@@ -298,7 +298,7 @@ struct pwm_chip {
 	int base;
 	unsigned int npwm;
 
-	struct pwm_device * (*of_xlate)(struct pwm_chip *pc,
+	struct pwm_device * (*of_xlate)(struct pwm_chip *chip,
 					const struct of_phandle_args *args);
 	unsigned int of_pwm_n_cells;
 
@@ -395,9 +395,9 @@ struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
 					 unsigned int index,
 					 const char *label);
 
-struct pwm_device *of_pwm_xlate_with_flags(struct pwm_chip *pc,
+struct pwm_device *of_pwm_xlate_with_flags(struct pwm_chip *chip,
 		const struct of_phandle_args *args);
-struct pwm_device *of_pwm_single_xlate(struct pwm_chip *pc,
+struct pwm_device *of_pwm_single_xlate(struct pwm_chip *chip,
 				       const struct of_phandle_args *args);
 
 struct pwm_device *pwm_get(struct device *dev, const char *con_id);