Hi Matti
On Tue, Feb 15, 2011 at 10:13:44AM +0200, Matti J. Aaltonen wrote:
> This is the core of the WL1273 FM radio driver, it connects
> the two child modules. The two child drivers are
> drivers/media/radio/radio-wl1273.c and sound/soc/codecs/wl1273.c.
>
> The radio-wl1273 driver implements the V4L2 interface and communicates
> with the device. The ALSA codec offers digital audio, without it only
> analog audio is available.
The driver looks fine, but for Mauro to take this one you'd have to provide a
diff against the already existing wl1273-core.
I have some minor comments:
> diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c
> new file mode 100644
> index 0000000..66e0ac9
> --- /dev/null
> +++ b/drivers/mfd/wl1273-core.c
> @@ -0,0 +1,295 @@
> +/*
> + * MFD driver for wl1273 FM radio and audio codec submodules.
> + *
> + * Copyright (C) 2010 Nokia Corporation
2011.
> +/**
> + * wl1273_fm_set_volume() - Set volume.
> + * @core: A pointer to the device struct.
> + * @volume: The new volume value.
> + */
> +static int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int
> volume)
> +{
> + u16 val;
> + int r;
> +
> + if (volume > WL1273_MAX_VOLUME)
> + return -EINVAL;
> +
> + if (core->volume == volume)
> + return 0;
> +
> + val = volume;
> + r = wl1273_fm_read_reg(core, WL1273_VOLUME_SET, &val);
> + if (r)
> + return r;
> +
> + core->volume = volume;
> + return 0;
> +}
I'm confused with this one: Isn't WL1273_VOLUME_SET a command ? Also, how can
reading from it set the volume ?
> +static int wl1273_core_remove(struct i2c_client *client)
> +{
> + struct wl1273_core *core = i2c_get_clientdata(client);
> +
> + dev_dbg(&client->dev, "%s\n", __func__);
> +
> + mfd_remove_devices(&client->dev);
> + i2c_set_clientdata(client, NULL)
Not needed.
> +err:
> + i2c_set_clientdata(client, NULL);
Ditto.
Cheers,
Samuel.
--
Intel Open Source Technology Centre
http://oss.intel.com/
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