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SubjectRe: [PATCH 2/2] mfd: dln2: add support for USB-SPI module
Hi Lee,

On Mon, Nov 10, 2014 at 09:30:05AM +0000, Lee Jones wrote:
> On Fri, 07 Nov 2014, Laurentiu Palcu wrote:
>
> > Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
> > ---
> > drivers/mfd/dln2.c | 12 ++++++++++++
> > 1 file changed, 12 insertions(+)
> >
> > diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c
> > index 9765a17..0cdad2d 100644
> > --- a/drivers/mfd/dln2.c
> > +++ b/drivers/mfd/dln2.c
> > @@ -52,6 +52,7 @@ enum dln2_handle {
> > DLN2_HANDLE_CTRL,
> > DLN2_HANDLE_GPIO,
> > DLN2_HANDLE_I2C,
> > + DLN2_HANDLE_SPI,
> > DLN2_HANDLES
> > };
> >
> > @@ -634,6 +635,12 @@ static struct dln2_platform_data dln2_pdata_i2c = {
> > .port = 0,
> > };
> >
> > +/* Only one SPI port supported */
> > +static struct dln2_platform_data dln2_pdata_spi = {
>
> Is this ever fiddled with? If not, const?
Well, if we declare this const we also need to cast the assignment below to
void* since platform_data is void*. Otherwise we get a "assignment
discards ‘const’ qualifier from pointer target type" warning.

Also, for consistency, we have to do it for all dln2_pdata_*. I'm not
sure it's worth it...

laurentiu

>
> > + .handle = DLN2_HANDLE_SPI,
> > + .port = 0,
> > +};
> > +
> > static const struct mfd_cell dln2_devs[] = {
> > {
> > .name = "dln2-gpio",
> > @@ -645,6 +652,11 @@ static const struct mfd_cell dln2_devs[] = {
> > .platform_data = &dln2_pdata_i2c,
> > .pdata_size = sizeof(struct dln2_platform_data),
> > },
> > + {
> > + .name = "dln2-spi",
> > + .platform_data = &dln2_pdata_spi,
> > + .pdata_size = sizeof(struct dln2_platform_data),
> > + },
> > };
> >
> > static void dln2_disconnect(struct usb_interface *interface)
>
> --
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org │ Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog
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