[PATCH 8/8] platform/chrome: of_hw_prober: Support touchscreen probing on Squirtle
From: Chen-Yu Tsai
Date: Wed Mar 12 2025 - 06:47:01 EST
The MT8186 Squirtle Chromebook is built with one of two possible
touchscreens. Let the prober probe for them.
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
---
drivers/platform/chrome/chromeos_of_hw_prober.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/platform/chrome/chromeos_of_hw_prober.c b/drivers/platform/chrome/chromeos_of_hw_prober.c
index eb01851e1cf5..a3ec583f316c 100644
--- a/drivers/platform/chrome/chromeos_of_hw_prober.c
+++ b/drivers/platform/chrome/chromeos_of_hw_prober.c
@@ -59,6 +59,7 @@ static int chromeos_i2c_component_prober(struct device *dev, const void *_data)
DEFINE_CHROMEOS_I2C_PROBE_DATA_DUMB_BY_TYPE(touchscreen);
DEFINE_CHROMEOS_I2C_PROBE_DATA_DUMB_BY_TYPE(trackpad);
+DEFINE_CHROMEOS_I2C_PROBE_CFG_SIMPLE_BY_TYPE(touchscreen);
DEFINE_CHROMEOS_I2C_PROBE_CFG_SIMPLE_BY_TYPE(trackpad);
static const struct chromeos_i2c_probe_data chromeos_i2c_probe_hana_trackpad = {
@@ -76,6 +77,17 @@ static const struct chromeos_i2c_probe_data chromeos_i2c_probe_hana_trackpad = {
},
};
+static const struct chromeos_i2c_probe_data chromeos_i2c_probe_squirtle_touchscreen = {
+ .cfg = &chromeos_i2c_probe_simple_touchscreen_cfg,
+ .opts = &(const struct i2c_of_probe_simple_opts) {
+ .res_node_compatible = "elan,ekth6a12nay",
+ .supply_name = "vcc33",
+ .gpio_name = "reset",
+ .post_power_on_delay_ms = 10,
+ .post_gpio_config_delay_ms = 300,
+ },
+};
+
static const struct hw_prober_entry hw_prober_platforms[] = {
{
.compatible = "google,hana",
@@ -89,6 +101,10 @@ static const struct hw_prober_entry hw_prober_platforms[] = {
.compatible = "google,squirtle",
.prober = chromeos_i2c_component_prober,
.data = &chromeos_i2c_probe_dumb_trackpad,
+ }, {
+ .compatible = "google,squirtle",
+ .prober = chromeos_i2c_component_prober,
+ .data = &chromeos_i2c_probe_squirtle_touchscreen,
}, {
.compatible = "google,steelix",
.prober = chromeos_i2c_component_prober,
--
2.49.0.rc0.332.g42c0ae87b1-goog