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pinctrl: stm32: Print invalid AF warning inside stm32_pctrl_is_function_valid()

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The "invalid function %d on pin %d .\n" message is triplicated in the
driver in different variants, just pull it into the function and have
it once in the driver. The bonus is that all variants of the message
now print the pin number and AF consistently, so it is easier to debug
such pinmux problems.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabien Dessenne <fabien.dessenne@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Acked-by: Fabien Dessenne <fabien.dessenne@foss.st.com>
Link: https://lore.kernel.org/r/20210406180035.279249-1-marex@denx.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Marek Vasut 2021-04-06 20:00:35 +02:00 committed by Linus Walleij
parent da35b19d62
commit 589b9b8b7b
1 changed files with 4 additions and 9 deletions
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13
drivers/pinctrl/stm32/pinctrl-stm32.c
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@ -531,6 +531,8 @@ static bool stm32_pctrl_is_function_valid(struct stm32_pinctrl *pctl,
break;
}
dev_err(pctl->dev, "invalid function %d on pin %d .\n", fnum, pin_num);
return false;
}
@ -545,11 +547,8 @@ static int stm32_pctrl_dt_node_to_map_func(struct stm32_pinctrl *pctl,
(*map)[*num_maps].type = PIN_MAP_TYPE_MUX_GROUP;
(*map)[*num_maps].data.mux.group = grp->name;
if (!stm32_pctrl_is_function_valid(pctl, pin, fnum)) {
dev_err(pctl->dev, "invalid function %d on pin %d .\n",
fnum, pin);
if (!stm32_pctrl_is_function_valid(pctl, pin, fnum))
return -EINVAL;
}
(*map)[*num_maps].data.mux.function = stm32_gpio_functions[fnum];
(*num_maps)++;
@ -620,7 +619,6 @@ static int stm32_pctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev,
func = STM32_GET_PIN_FUNC(pinfunc);
if (!stm32_pctrl_is_function_valid(pctl, pin, func)) {
dev_err(pctl->dev, "invalid function.\n");
err = -EINVAL;
goto exit;
}
@ -821,11 +819,8 @@ static int stm32_pmx_set_mux(struct pinctrl_dev *pctldev,
int pin;
ret = stm32_pctrl_is_function_valid(pctl, g->pin, function);
if (!ret) {
dev_err(pctl->dev, "invalid function %d on group %d .\n",
function, group);
if (!ret)
return -EINVAL;
}
range = pinctrl_find_gpio_range_from_pin(pctldev, g->pin);
if (!range) {