On Mon, 2015-06-08 at 17:37 +0300, Irina Tirdea wrote: > After power on, it is recommended that the driver resets the device. > The reset procedure timing is described in the datasheet and is used > at device init (before writing device configuration) and > for power management. It is a sequence of setting the interrupt > and reset pins high/low at specific timing intervals. This procedure > also includes setting the slave address to the one specified in the > ACPI/device tree. This breaks the touchscreen on my Onda v975w: [ 239.732858] Goodix-TS i2c-GDIX1001:00: ID 9271, version: 1020 [ 239.732977] Goodix-TS i2c-GDIX1001:00: Failed to get reset GPIO: -16 [ 239.736071] Goodix-TS: probe of i2c-GDIX1001:00 failed with error -16 This is the DSDT for that device: https://bugzilla.kernel.org/attachment.cgi?id=149331 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
