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button: qcom-pmic: introduce Qualcomm PMIC button driver

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Qualcomm PMICs include a "pon" function which handles two buttons, the
power button and "resin" button (usually volume down). Introduce a new
driver following upstream Linux DT to enable these and map them to Enter
and Down respectively to enable use in boot menus.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Tested-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
This commit is contained in:
Caleb Connolly
2023-12-05 13:46:47 +00:00
parent 033f09b4b4
commit 4e8aa0065d
4 changed files with 176 additions and 0 deletions
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9
drivers/button/Kconfig
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@@ -27,4 +27,13 @@ config BUTTON_GPIO
The GPIO driver must used driver model. Buttons are configured using
the device tree.
config BUTTON_QCOM_PMIC
bool "Qualcomm power button"
depends on BUTTON
depends on PMIC_QCOM
help
Enable support for the power and "resin" (usually volume down) buttons
on Qualcomm SoCs. These will be configured as the Enter and Down keys
respectively, allowing navigation of bootmenu with buttons on device.
endmenu