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| author | Keerthy <j-keerthy@ti.com> | 2016-11-28 07:01:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-08 13:12:59 +0300 |
| commit | 98a7f813e9c984afaf09c651b160dd3c2a66b22e (patch) | |
| tree | 109c6101f0ace5cdef633e206775728a79747d9b /Documentation | |
| parent | 4d2e98ce445b10b2f1f4f44ff096a6a9381726e1 (diff) | |
| download | linux-98a7f813e9c984afaf09c651b160dd3c2a66b22e.tar.xz | |
Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition
commit 0ea66f76ba17a4b229caaadd77de694111b21769 upstream.
GPIO7 is configured in POWERHOLD mode which has higher priority
over DEV_ON bit and keeps the PMIC supplies on even after the DEV_ON
bit is turned off. This property enables driver to over ride the
POWERHOLD value to GPIO7 so as to turn off the PMIC in power off
scenarios.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt index caf297bee1fb..c28d4eb83b76 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt @@ -35,6 +35,15 @@ Optional properties: - ti,palmas-enable-dvfs2: Enable DVFS2. Configure pins for DVFS2 mode. Selection primary or secondary function associated to GPADC_START and SYSEN2 pin/pad for DVFS2 interface +- ti,palmas-override-powerhold: This is applicable for PMICs for which + GPIO7 is configured in POWERHOLD mode which has higher priority + over DEV_ON bit and keeps the PMIC supplies on even after the DEV_ON + bit is turned off. This property enables driver to over ride the + POWERHOLD value to GPIO7 so as to turn off the PMIC in power off + scenarios. So for GPIO7 if ti,palmas-override-powerhold is set + then the GPIO_7 field should never be muxed to anything else. + It should be set to POWERHOLD by default and only in case of + power off scenarios the driver will over ride the mux value. This binding uses the following generic properties as defined in pinctrl-bindings.txt: |