From: Chen-Yu Tsai Date: Tue, 8 Mar 2022 10:09:51 +0000 (+0800) Subject: pinctrl: mediatek: paris: Skip custom extra pin config dump for virtual GPIOs X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a843ba2e9c875b4ad5eb2e8ec822c46f6d8a5ece;p=linux.git pinctrl: mediatek: paris: Skip custom extra pin config dump for virtual GPIOs [ Upstream commit 1763933d377ecb05454f8d20e3c8922480db2ac0 ] 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: 184d8e13f9b1 ("pinctrl: mediatek: Add support for pin configuration dump via debugfs.") Signed-off-by: Chen-Yu Tsai Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20220308100956.2750295-7-wenst@chromium.org Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c index 2133964dfd59a..02e2a259edd39 100644 --- a/drivers/pinctrl/mediatek/pinctrl-paris.c +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c @@ -580,6 +580,9 @@ 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)