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Commit b705c054 authored by Laurent Pinchart's avatar Laurent Pinchart
Browse files

sh-pfc: Use proper error codes 



Return proper error codes instead of -1, and propagate the error codes.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent cd3c1bee

drivers/pinctrl/sh-pfc/core.c

+10 −9
Original line number Diff line number Diff line
@@ -93,7 +93,7 @@ int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin) 
		offset += range->end - range->begin + 1;

	}



	return -1;

	return -EINVAL;

}



static int sh_pfc_enum_in_range(pinmux_enum_t enum_id,
@@ -233,7 +233,7 @@ static int sh_pfc_get_config_reg(struct sh_pfc *pfc, pinmux_enum_t enum_id, 
		k++;

	}



	return -1;

	return -EINVAL;

}



static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, pinmux_enum_t mark, int pos,
@@ -255,7 +255,7 @@ static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, pinmux_enum_t mark, int pos, 
	}



	pr_err("cannot locate data/mark enum_id for mark %d\n", mark);

	return -1;

	return -EINVAL;

}



int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
@@ -264,6 +264,7 @@ int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type) 
	pinmux_enum_t enum_id;

	const struct pinmux_range *range;

	int in_range, pos, field, value;

	int ret;



	switch (pinmux_type) {
@@ -288,7 +289,7 @@ int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type) 
		break;



	default:

		return -1;

		return -EINVAL;

	}



	pos = 0;
@@ -297,8 +298,8 @@ int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type) 
	value = 0;

	while (1) {

		pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);

		if (pos <= 0)

			return -1;

		if (pos < 0)

			return pos;



		if (!enum_id)

			break;
@@ -341,9 +342,9 @@ int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type) 
		if (!in_range)

			continue;



		if (sh_pfc_get_config_reg(pfc, enum_id, &cr,

					  &field, &value) != 0)

			return -1;

		ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);

		if (ret < 0)

			return ret;



		sh_pfc_write_config_reg(pfc, cr, field, value);

	}

drivers/pinctrl/sh-pfc/gpio.c

+4 −9
Original line number Diff line number Diff line
@@ -276,22 +276,17 @@ static int gpio_function_request(struct gpio_chip *gc, unsigned offset) 
	struct sh_pfc *pfc = gpio_to_pfc(gc);

	unsigned int mark = pfc->info->func_gpios[offset].enum_id;

	unsigned long flags;

	int ret = -EINVAL;

	int ret;



	pr_notice_once("Use of GPIO API for function requests is deprecated, convert to pinctrl\n");



	if (mark == 0)

		return ret;

		return -EINVAL;



	spin_lock_irqsave(&pfc->lock, flags);



	if (sh_pfc_config_mux(pfc, mark, PINMUX_TYPE_FUNCTION))

		goto done;



	ret = 0;



done:

	ret = sh_pfc_config_mux(pfc, mark, PINMUX_TYPE_FUNCTION);

	spin_unlock_irqrestore(&pfc->lock, flags);



	return ret;

}

drivers/pinctrl/sh-pfc/pinctrl.c

+11 −13
Original line number Diff line number Diff line
@@ -114,18 +114,16 @@ static int sh_pfc_func_enable(struct pinctrl_dev *pctldev, unsigned selector, 
	const struct sh_pfc_pin_group *grp = &pfc->info->groups[group];

	unsigned long flags;

	unsigned int i;

	int ret = -EINVAL;

	int ret = 0;



	spin_lock_irqsave(&pfc->lock, flags);



	for (i = 0; i < grp->nr_pins; ++i) {

		if (sh_pfc_config_mux(pfc, grp->mux[i], PINMUX_TYPE_FUNCTION))

			goto done;

		ret = sh_pfc_config_mux(pfc, grp->mux[i], PINMUX_TYPE_FUNCTION);

		if (ret < 0)

			break;

	}



	ret = 0;



done:

	spin_unlock_irqrestore(&pfc->lock, flags);

	return ret;

}
@@ -144,7 +142,7 @@ static int sh_pfc_reconfig_pin(struct sh_pfc_pinctrl *pmx, unsigned offset, 
	const struct sh_pfc_pin *pin = &pfc->info->pins[idx];

	unsigned int mark = pin->enum_id;

	unsigned long flags;

	int ret = -EINVAL;

	int ret;



	spin_lock_irqsave(&pfc->lock, flags);
@@ -156,17 +154,17 @@ static int sh_pfc_reconfig_pin(struct sh_pfc_pinctrl *pmx, unsigned offset, 
	case PINMUX_TYPE_INPUT_PULLDOWN:

		break;

	default:

		goto err;

		ret = -EINVAL;

		goto done;

	}



	if (sh_pfc_config_mux(pfc, mark, new_type) != 0)

		goto err;

	ret = sh_pfc_config_mux(pfc, mark, new_type);

	if (ret < 0)

		goto done;



	cfg->type = new_type;



	ret = 0;



err:

done:

	spin_unlock_irqrestore(&pfc->lock, flags);



	return ret;