Message ID | 1446766698-30487-1-git-send-email-aduggan@synaptics.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show |
On Fri, Nov 6, 2015 at 12:38 AM, Andrew Duggan <aduggan@synaptics.com> wrote: > From: Benjamin Tissoires <benjamin.tissoires@redhat.com> > > When a device is physically reset, the transport layer may need to reset > its state too and also do extra work to make the device accessible on the > bus. > > Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> > Tested-by: Andrew Duggan <aduggan@synaptics.com> Tested-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/input/rmi4/rmi_bus.h b/drivers/input/rmi4/rmi_bus.h index d4cfc85..41d6c3d 100644 --- a/drivers/input/rmi4/rmi_bus.h +++ b/drivers/input/rmi4/rmi_bus.h @@ -197,6 +197,7 @@ struct rmi_transport_ops { int (*enable_device) (struct rmi_transport_dev *xport); void (*disable_device) (struct rmi_transport_dev *xport); + int (*reset)(struct rmi_transport_dev *xport, u16 reset_addr); }; /** diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index 264bc62..81e7c55 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -611,6 +611,14 @@ static int rmi_initial_reset(struct rmi_device *rmi_dev, const struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev); + if (rmi_dev->xport->ops->reset) { + if (rmi_dev->xport->ops->reset(rmi_dev->xport, + cmd_addr)) + return error; + + return RMI_SCAN_DONE; + } + error = rmi_write_block(rmi_dev, cmd_addr, &cmd_buf, 1); if (error) { dev_err(&rmi_dev->dev,