From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Jiri Kosina <jikos@kernel.org>,
Benjamin Tissoires <bentiss@kernel.org>,
Andrew Duggan <aduggan@synaptics.com>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 07/12] HID: rmi: do not mutate shared platform data template
Date: Fri, 13 Nov 2026 21:59:57 -0800 [thread overview]
Message-ID: <20261113-hid-rmi-v1-7-afc43d97d766@gmail.com> (raw)
In-Reply-To: <20261113-hid-rmi-v1-0-afc43d97d766@gmail.com>
Probing a device with physical buttons modifies the static platform data
template directly, altering GPIO configuration for any devices probed
afterward.
Make the shared template read-only and adjust the per-device platform
data copy instead.
Fixes: 0b2c7a897378 ("HID: rmi: Make hid-rmi a transport driver for synaptics-rmi4")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/hid/hid-rmi.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index a4406bc6af43..0a5d32dbe881 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -613,7 +613,7 @@ static int rmi_check_valid_report_id(struct hid_device *hdev, unsigned type,
return 0;
}
-static struct rmi_device_platform_data rmi_hid_pdata = {
+static const struct rmi_device_platform_data rmi_hid_pdata = {
.sensor_pdata = {
.sensor_type = rmi_sensor_touchpad,
.axis_align.flip_y = true,
@@ -776,12 +776,12 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
return ret;
}
- if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)
- rmi_hid_pdata.gpio_data.disable = true;
-
data->xport.dev = hdev->dev.parent;
data->xport.pdata = rmi_hid_pdata;
data->xport.pdata.irq = data->rmi_irq;
+ if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)
+ data->xport.pdata.gpio_data.disable = true;
+
data->xport.proto_name = "hid";
data->xport.ops = &hid_rmi_ops;
--
2.56.0.679.gc527c65306-goog
next prev parent reply other threads:[~2026-11-14 6:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-14 5:59 [PATCH 00/12] HID: rmi: Fix report handling, device lifecycle, and clean up code Dmitry Torokhov
2026-11-14 5:59 ` [PATCH 01/12] HID: rmi: return error on short output report writes Dmitry Torokhov
2026-11-14 5:59 ` [PATCH 02/12] HID: rmi: only strip trailing 0xff bytes from attention reports Dmitry Torokhov
2026-11-14 5:59 ` [PATCH 03/12] HID: rmi: validate read data report and protocol transfer bounds Dmitry Torokhov
2026-11-14 5:59 ` [PATCH 04/12] HID: rmi: fix device lifecycle, suspend, and reset work handling Dmitry Torokhov
2026-11-14 5:59 ` [PATCH 05/12] HID: rmi: re-select page 0 across device resets Dmitry Torokhov
2026-11-14 5:59 ` [PATCH 06/12] HID: rmi: avoid GFP_ATOMIC allocation with hard IRQs disabled Dmitry Torokhov
2026-11-14 5:59 ` Dmitry Torokhov [this message]
2026-11-14 5:59 ` [PATCH 08/12] HID: rmi: use put_unaligned_le16() to populate output reports Dmitry Torokhov
2026-11-14 5:59 ` [PATCH 09/12] HID: rmi: use scope-based cleanup for mode feature buffer Dmitry Torokhov
2026-11-14 6:00 ` [PATCH 10/12] HID: rmi: switch to scoped mutex guards Dmitry Torokhov
2026-11-14 6:00 ` [PATCH 11/12] HID: rmi: remove dead code and reorder report write helper Dmitry Torokhov
2026-11-14 6:00 ` [PATCH 12/12] HID: rmi: clean up coding style and logging Dmitry Torokhov
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