commit 9f69760e917d006a89a0ca7d17ec4d2bd48ccbe3
author developer <developer@mediatek.com> Thu Nov 03 11:46:34 2022 +0800
committer developer <developer@mediatek.com> Thu Nov 03 21:18:03 2022 +0800
tree 9d4b34a571ff820f707c4eb5c3e49826f7ad28fd
parent 4a4ca7165e36126b9758594bb1ab7aea58d7c6c7

[][kernel][mt7988][pinctrl][separate sdcard from emmc45]

[Description]
Add sdcard pinctrl group to mediatek mt7988 SoC.

We need 11 pins for emmc 4.5 and 12 pins for emmc 5.4, but if we just
use emmc as SD card controller, we only need MSDC0_CLK, MSDC0_CMD and
MSDC0_DATA0/1/2/3 which belong the subset of emmc 4.5 pins.

This patch add a new pinctrl group 'sdcard' to use fewer pins to make
sdcard works.

[Release-log]
N/A

Change-Id: Idc3e80929111abe6d8ddf384fb4894253359dd66
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6722624