]> git.dujemihanovic.xyz Git - u-boot.git/commit
pinctrl: stmfx: update pinconf settings
authorPatrick Delaunay <patrick.delaunay@st.com>
Tue, 30 Jul 2019 17:16:11 +0000 (19:16 +0200)
committerPatrice Chotard <patrice.chotard@st.com>
Tue, 27 Aug 2019 07:36:56 +0000 (09:36 +0200)
commitabee80d78933e8b21dc2bcafa6de8e69ee2253d7
tree5370df591e12f6069e27c669eb0e549514cc3d91
parent73858264758f00b981fd126ab705db04a851656d
pinctrl: stmfx: update pinconf settings

Alignment with kernel driver.

According to the following tab (coming from STMFX datasheet), updates
have to done in stmfx_pinctrl_conf_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: Patrick Delaunay <patrick.delaunay@st.com>
drivers/pinctrl/pinctrl-stmfx.c