diff options
| author | Chen-Yu Tsai <wenst@chromium.org> | 2025-08-12 17:01:34 +0800 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2025-09-12 09:09:26 +0200 |
| commit | 0370911565869384f19b35ea9e71ee7a57b48a33 (patch) | |
| tree | 2f5b2ece7cfe37a713f7dca3487c31786bcece86 | |
| parent | c881d1c37b2c159d908203dba5c4920bc776046f (diff) | |
arm64: dts: mediatek: mt8186-tentacruel: Fix touchscreen model
The touchscreen controller used with the original Krabby design is the
Elan eKTH6918, which is in the same family as eKTH6915, but supporting
a larger screen size with more sense lines.
OTOH, the touchscreen controller that actually shipped on the Tentacruel
devices is the Elan eKTH6A12NAY. A compatible string was added for it
specifically because it has different power sequencing timings.
Fix up the touchscreen nodes for both these. This also includes adding
a previously missing reset line. Also add "no-reset-on-power-off" since
the power is always on, and putting it in reset would consume more
power.
Fixes: 8855d01fb81f ("arm64: dts: mediatek: Add MT8186 Krabby platform based Tentacruel / Tentacool")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20250812090135.3310374-1-wenst@chromium.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
| -rw-r--r-- | arch/arm64/boot/dts/mediatek/mt8186-corsola-krabby.dtsi | 8 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262144.dts | 4 |
2 files changed, 8 insertions, 4 deletions
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-krabby.dtsi b/arch/arm64/boot/dts/mediatek/mt8186-corsola-krabby.dtsi index 7c971198fa95..72a2a2bff0a9 100644 --- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-krabby.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-krabby.dtsi @@ -71,14 +71,14 @@ i2c-scl-internal-delay-ns = <10000>; touchscreen: touchscreen@10 { - compatible = "hid-over-i2c"; + compatible = "elan,ekth6915"; reg = <0x10>; interrupts-extended = <&pio 12 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; pinctrl-0 = <&touchscreen_pins>; - post-power-on-delay-ms = <10>; - hid-descr-addr = <0x0001>; - vdd-supply = <&pp3300_s3>; + reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>; + vcc33-supply = <&pp3300_s3>; + no-reset-on-power-off; }; }; diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262144.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262144.dts index 26d3451a5e47..24d9ede63eaa 100644 --- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262144.dts +++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262144.dts @@ -42,3 +42,7 @@ CROS_STD_MAIN_KEYMAP >; }; + +&touchscreen { + compatible = "elan,ekth6a12nay"; +}; |