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| author | Alexandre Torgue <alexandre.torgue@st.com> | 2019-07-25 13:16:56 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-08-05 12:14:30 +0200 |
| commit | a502b343ebd0eab38f3cb33fbb84011847cf5aac (patch) | |
| tree | 401f743fd4e1fcb2da51b0cbf64b83787e9afa7e /mm | |
| parent | 2f22e2028c03d95c47b077887297dfa068da2c8a (diff) | |
pinctrl: stmfx: update pinconf settings
According to the following tab (coming from STMFX datasheet), updates
have to done in stmfx_pinconf_set function:
-"type" has to be set when "bias" is configured as "pull-up or pull-down"
-PIN_CONFIG_DRIVE_PUSH_PULL should only be used when gpio is configured as
output. There is so no need to check direction.
DIR | TYPE | PUPD | MFX GPIO configuration
----|------|------|---------------------------------------------------
1 | 1 | 1 | OUTPUT open drain with internal pull-up resistor
----|------|------|---------------------------------------------------
1 | 1 | 0 | OUTPUT open drain with internal pull-down resistor
----|------|------|---------------------------------------------------
1 | 0 | 0/1 | OUTPUT push pull no pull
----|------|------|---------------------------------------------------
0 | 1 | 1 | INPUT with internal pull-up resistor
----|------|------|---------------------------------------------------
0 | 1 | 0 | INPUT with internal pull-down resistor
----|------|------|---------------------------------------------------
0 | 0 | 1 | INPUT floating
----|------|------|---------------------------------------------------
0 | 0 | 0 | analog (GPIO not used, default setting)
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/1564053416-32192-1-git-send-email-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions