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pinctrl: mediatek: paris: Skip custom extra pin config dump for virtual GPIOs

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Virtual GPIOs do not have any hardware state associated with them. Any
attempt to read back hardware state for these pins result in error
codes.

Skip dumping extra pin config information for these virtual GPIOs.

Fixes: 184d8e13f9 ("pinctrl: mediatek: Add support for pin configuration dump via debugfs.")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220308100956.2750295-7-wenst@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Chen-Yu Tsai 2022-03-08 18:09:51 +08:00 committed by Linus Walleij
parent fcde2a3fc8
commit 1763933d37
1 changed files with 3 additions and 0 deletions
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3
drivers/pinctrl/mediatek/pinctrl-paris.c
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@ -581,6 +581,9 @@ ssize_t mtk_pctrl_show_one_pin(struct mtk_pinctrl *hw,
if (gpio >= hw->soc->npins)
return -EINVAL;
if (mtk_is_virt_gpio(hw, gpio))
return -EINVAL;
desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
pinmux = mtk_pctrl_get_pinmux(hw, gpio);
if (pinmux >= hw->soc->nfuncs)