Re: [PATCH 1/2] staging: Add ST-Ericsson CG2900 driver

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On Wed, Mar 23, 2011 at 2:59 PM, Par-Gunnar Hjalmdahl
<par-gunnar.p.hjalmdahl@xxxxxxxxxxxxxx> wrote:
> diff --git a/drivers/staging/cg2900/TODO b/drivers/staging/cg2900/TODO
> new file mode 100644
> index 0000000..f6fb76a
> --- /dev/null
> +++ b/drivers/staging/cg2900/TODO
> @@ -0,0 +1,21 @@
> +TODO
> +----
> +
> + - Decide upon architecture. Some people consider architecture in the cg2900
> +   driver to be too complex. We consider it to be not more complex than needed.
> +
> + - Currently the cg2900_uart registers as protocol driver against hci_ldisc.c.
> +   There is however some common functionality with hci_h4.c and the cg2900 could
> +   therefore register it's vendor specific channels to hci_h4.c, but this would
> +   require adding a registration functionality in the hci_h4 file.
> +
> + - Some people demand that the cg2900 driver re-use the Bluetooth driver to send
> +   and receive BT commands and events. That is however not possible with current
> +   BT API and might not be feasible, for example when using FM only in
> +   the cg2900 chip.
> +
> + - TI has already delivered a driver for a multi-function chip called ti-st.
> +   This driver is currently located in drivers/misc/ti-st/. There has however
> +   been criticism raised against design/architecture of the driver. There
> +   currently also doesn't seem to be a way to add support for cg2900 in that
> +   driver even though some people has raised this as an alternative.

As someone who is definitely the part of these demotivating and
unreasonable "some people" I have to say that even though I'm okay
with this driver going into staging, I see a huge gap between the
desire of its creators to have something generic and the ability to do
so. I am absolutely sure that given the widely advertised
peculiarities of this chip, the authors should stop trying to come up
with a generic solution and just present a simplistic MFD driver for
their particular device.

Thanks,
   Vitaly
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