On Sat, Mar 08, 2014 at 03:29:53AM +0100, Christopher Heiny wrote:
> In debugging certain touch sensor failures, it's useful to know
> whether the device is stuck in bootloader, so print a message
> to that effect.
>
> Also, point to the actual location of the defs for the F01 CTRL0
> bitfields.
>
> Signed-off-by: Christopher Heiny <cheiny@xxxxxxxxxxxxx>
> Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
> Cc: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> Cc: Linux Walleij <linus.walleij@xxxxxxxxxx>
> Cc: David Herrmann <dh.herrmann@xxxxxxxxx>
> Cc: Jiri Kosina <jkosina@xxxxxxx>
>
> ---
>
> drivers/input/rmi4/rmi_f01.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/input/rmi4/rmi_f01.c b/drivers/input/rmi4/rmi_f01.c
> index 8504865..a078d7d 100644
> --- a/drivers/input/rmi4/rmi_f01.c
> +++ b/drivers/input/rmi4/rmi_f01.c
> @@ -16,7 +16,7 @@
> #include "rmi_f01.h"
>
> /**
> - * @ctrl0 - see the bit definitions above.
> + * @ctrl0 - see the bit definitions in rmi_f01.h.
> * @doze_interval - controls the interval between checks for finger presence
> * when the touch sensor is in doze mode, in units of 10ms.
> * @wakeup_threshold - controls the capacitance threshold at which the touch
> @@ -415,6 +415,13 @@ static int rmi_f01_probe(struct rmi_function *fn)
> return error;
> }
>
> + driver_data->f01_bootloader_mode =
> + RMI_F01_STATUS_BOOTLOADER(device_status);
> + if (driver_data->f01_bootloader_mode)
> + dev_warn(&rmi_dev->dev,
> + "WARNING: RMI4 device is in bootloader mode!\n");
> +
> +
The logic here is a bit odd. Would it make sense to put this warning in
the if condition below? IIRC you can't have a configured device while
in bootloader mode.
> if (RMI_F01_STATUS_UNCONFIGURED(device_status)) {
> dev_err(&fn->dev,
> "Device was reset during configuration process, status: %#02x!\n",
-Courtney
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