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HID: i2c-hid: Fix resume issue on Raydium touchscreen device

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When Rayd touchscreen resumed from S3, it issues too many errors like:
i2c_hid i2c-RAYD0001:00: i2c_hid_get_input: incomplete report (58/5442)

And all the report data are corrupted, touchscreen is unresponsive.

Fix this by re-sending report description command after resume.
Add device ID as a quirk.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Aaron Ma 2018-04-09 15:41:31 +08:00 committed by Jiri Kosina
parent 619d3a2922
commit 3e83eda467
2 changed files with 16 additions and 0 deletions
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3
drivers/hid/hid-ids.h
View File

@ -525,6 +525,9 @@
#define I2C_VENDOR_ID_HANTICK 0x0911
#define I2C_PRODUCT_ID_HANTICK_5288 0x5288
#define I2C_VENDOR_ID_RAYD 0x2386
#define I2C_PRODUCT_ID_RAYD_3118 0x3118
#define USB_VENDOR_ID_HANWANG 0x0b57
#define USB_DEVICE_ID_HANWANG_TABLET_FIRST 0x5000
#define USB_DEVICE_ID_HANWANG_TABLET_LAST 0x8fff

13
drivers/hid/i2c-hid/i2c-hid.c
View File

@ -47,6 +47,7 @@
/* quirks to control the device */
#define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV BIT(0)
#define I2C_HID_QUIRK_NO_IRQ_AFTER_RESET BIT(1)
#define I2C_HID_QUIRK_RESEND_REPORT_DESCR BIT(2)
/* flags */
#define I2C_HID_STARTED 0
@ -171,6 +172,8 @@ static const struct i2c_hid_quirks {
I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV },
{ I2C_VENDOR_ID_HANTICK, I2C_PRODUCT_ID_HANTICK_5288,
I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
{ I2C_VENDOR_ID_RAYD, I2C_PRODUCT_ID_RAYD_3118,
I2C_HID_QUIRK_RESEND_REPORT_DESCR },
{ 0, 0 }
};
@ -1220,6 +1223,16 @@ static int i2c_hid_resume(struct device *dev)
if (ret)
return ret;
/* RAYDIUM device (2386:3118) need to re-send report descr cmd
* after resume, after this it will be back normal.
* otherwise it issues too many incomplete reports.
*/
if (ihid->quirks & I2C_HID_QUIRK_RESEND_REPORT_DESCR) {
ret = i2c_hid_command(client, &hid_report_descr_cmd, NULL, 0);
if (!ret)
return ret;
}
if (hid->driver && hid->driver->reset_resume) {
ret = hid->driver->reset_resume(hid);
return ret;