linux-kernel - [PATCH 7/8] platform/chrome: of_hw_prober: Support trackpad probing on Corsola family

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Message-ID: <20250312104344.3084425-8-wenst@chromium.org>
Date: Wed, 12 Mar 2025 18:43:41 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Benson Leung <bleung@...omium.org>,
	Tzung-Bi Shih <tzungbi@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Chen-Yu Tsai <wenst@...omium.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	chrome-platform@...ts.linux.dev,
	linux-input@...r.kernel.org,
	Douglas Anderson <dianders@...omium.org>
Subject: [PATCH 7/8] platform/chrome: of_hw_prober: Support trackpad probing on Corsola family

Various MT8186 Corsola Chromebooks (squirtle, steelix and voltorb
families) have second source trackpads that need to be probed.
The power supply for these are always on and their reset/enable
lines are not exposed.

Add them to the probing list.

Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
---
 drivers/platform/chrome/chromeos_of_hw_prober.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/platform/chrome/chromeos_of_hw_prober.c b/drivers/platform/chrome/chromeos_of_hw_prober.c
index c6992f5cdc76..eb01851e1cf5 100644
--- a/drivers/platform/chrome/chromeos_of_hw_prober.c
+++ b/drivers/platform/chrome/chromeos_of_hw_prober.c
@@ -57,6 +57,7 @@ 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(trackpad);
 
@@ -84,6 +85,18 @@ static const struct hw_prober_entry hw_prober_platforms[] = {
 		.compatible = "google,hana",
 		.prober = chromeos_i2c_component_prober,
 		.data = &chromeos_i2c_probe_hana_trackpad,
+	}, {
+		.compatible = "google,squirtle",
+		.prober = chromeos_i2c_component_prober,
+		.data = &chromeos_i2c_probe_dumb_trackpad,
+	}, {
+		.compatible = "google,steelix",
+		.prober = chromeos_i2c_component_prober,
+		.data = &chromeos_i2c_probe_dumb_trackpad,
+	}, {
+		.compatible = "google,voltorb",
+		.prober = chromeos_i2c_component_prober,
+		.data = &chromeos_i2c_probe_dumb_trackpad,
 	},
 };
 
-- 
2.49.0.rc0.332.g42c0ae87b1-goog