This is a note to let you know that I've just added the patch titled pinctrl: mediatek: paris: Skip custom extra pin config dump for virtual GPIOs to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: pinctrl-mediatek-paris-skip-custom-extra-pin-config-.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit b2568e2783d8c82cef8868aed3901e260add4e80 Author: Chen-Yu Tsai <wenst@xxxxxxxxxxxx> Date: Tue Mar 8 18:09:51 2022 +0800 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 <wenst@xxxxxxxxxxxx> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220308100956.2750295-7-wenst@xxxxxxxxxxxx Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c index 2133964dfd59..02e2a259edd3 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)