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| author | Jernej Skrabec <jernej.skrabec@gmail.com> | 2021-07-22 19:12:19 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2021-07-26 10:11:45 +0300 |
| commit | 35f2f8b802c1a80bdbd664c7158bc76e662315a3 (patch) | |
| tree | 1aa09922fbdda4bbc23f5267ba4863203e2b5ed5 /arch/um/drivers/fd.c | |
| parent | 7ab1f6539762946de06ca14d7401ae123821bc40 (diff) | |
| download | linux-35f2f8b802c1a80bdbd664c7158bc76e662315a3.tar.xz | |
arm64: dts: allwinner: h6: tanix-tx6: Add PIO power supplies
While there is no publicly available schematic of this board, it's not
hard to determine voltage of GPIO port C, D and G (only ones which can
be set).
Port C and G are used for MMC/SDIO communication, so they use 1.8 V
power supply. It's not clear if port D is even used, but if it is, it's
pretty safe to assume it uses 3.3 V power supply. Value read from PIO
Group Withstand Voltage Mode Select register from within pre-installed
Android agrees with that assesment.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210722161220.51181-3-jernej.skrabec@gmail.com
Diffstat (limited to 'arch/um/drivers/fd.c')
0 files changed, 0 insertions, 0 deletions