[PATCH 0/2] pinctrl-single: introduce am654-padconf compatible
Dhruva Gole
d-gole at ti.com
Tue Aug 8 03:22:06 PDT 2023
The K3 family of SOCs use certain bits of the padconfig registers like
WKUP_EVT and WKUP_EN to enable daisychain wakeups.
For example, these bits are described in the AM654 TRM [0] under
"Table 5-517. Description Of The Pad Configuration Register Bits"
This series adds the DT binding changes for adding the compatible and
also the driver changes which make use of this compatible.
NOTE: Some K3 SoCs may have these bits marked as reserved which means
that they don't support IO daisychain. Such SOCs are not expected to use
this compatible.
The general expected usage is when the device is in a suspended state like Deep
Sleep or Suspend to RAM, and any IO activity on configured pads can
trigger a wakeup.
Link to complete series:
https://lore.kernel.org/all/20230808102207.130177-1-d-gole@ti.com
Base commit:
71cd4fc492ec (tag: next-20230808, linux-next/master) Add linux-next specific files for 20230808
depends on:
https://lore.kernel.org/r/20230721082654.27036-1-tony@atomide.com
which has been picked up by Linus Walleij in his tree here:
https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git/commit/?h=devel&id=677a62482bd6e584f83d0342e78735e3cd449ba4
However, it hasn't reflected in -next yet so specifying the depends on
above.
[0] https://www.ti.com/lit/pdf/spruid7
Cc: Nishanth Menon <nm at ti.com>
Cc: Vignesh Raghavendra <vigneshr at ti.com>
Cc: Tony Lindgren <tony at atomide.com>
Cc: Conor Dooley <conor.dooley at microchip.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Haojian Zhuang <haojian.zhuang at linaro.org>
Dhruva Gole (1):
dt-bindings: pinctrl: pinctrl-single: add ti,am654-padconf compatible
Tony Lindgren (1):
pinctrl: single: Add compatible for ti,am654-padconf
.../devicetree/bindings/pinctrl/pinctrl-single.yaml | 1 +
drivers/pinctrl/pinctrl-single.c | 7 +++++++
2 files changed, 8 insertions(+)
--
2.34.1
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