diff options
| author | Alexey Minnekhanov <alexeymin@postmarketos.org> | 2025-04-24 04:48:11 +0300 |
|---|---|---|
| committer | Casey Connolly <casey.connolly@linaro.org> | 2025-06-02 18:20:33 +0200 |
| commit | c92bf21e731a20d7de6acacd6487e98c69fd2a83 (patch) | |
| tree | 896e98df0ec23cbbf84b9a5244b58632fe174323 /drivers/button/button-qcom-pmic.c | |
| parent | 1079d4bf2ed88e7e34a56152a63eb16fca7f7811 (diff) | |
button: qcom-pmic: allow to specify code in devicetree
Most device vendors put "Volume Down" button onto PMIC RESIN.
But Sony is special: see
dts/upstream/src/arm64/qcom/sdm630-sony-xperia-nile.dtsi or [1].
They put "Volume Down" on PMIC GPIO 7 where others usually put
"Volume Up", and KEY_VOLUMEUP is inside &pon_resin.
Currently if you boot U-Boot on such Sony device, you end up
with 2 "Volume Down" buttons, and no "Volume Up", which makes
navigating menu problematic.
Support reading devicetree "linux,code" property and override
statically defined button code & label based on that.
[1] https://elixir.bootlin.com/linux/v6.15-rc3/source/arch/
arm64/boot/dts/qcom/sdm630-sony-xperia-nile.dtsi#L263
Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Signed-off-by: Alexey Minnekhanov <alexeymin@minlexx.ru>
Reviewed-by: Casey Connolly <casey.connolly@linaro.org>
Link: https://lore.kernel.org/r/20250424014811.3809818-1-alexeymin@minlexx.ru
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
Diffstat (limited to 'drivers/button/button-qcom-pmic.c')
| -rw-r--r-- | drivers/button/button-qcom-pmic.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/button/button-qcom-pmic.c b/drivers/button/button-qcom-pmic.c index e3bb9bd758a..85addfe32a2 100644 --- a/drivers/button/button-qcom-pmic.c +++ b/drivers/button/button-qcom-pmic.c @@ -143,6 +143,21 @@ static int qcom_pwrkey_probe(struct udevice *dev) priv->base = base; + ret = dev_read_u32(dev, "linux,code", &priv->code); + if (ret == 0) { + /* convert key, if read OK */ + switch (priv->code) { + case KEY_VOLUMEDOWN: + priv->code = KEY_DOWN; + uc_plat->label = "Volume Down"; + break; + case KEY_VOLUMEUP: + priv->code = KEY_UP; + uc_plat->label = "Volume Up"; + break; + } + } + /* Do a sanity check */ ret = pmic_reg_read(priv->pmic, priv->base + REG_TYPE); if (ret != 0x1 && ret != 0xb) { |