On Sat, 17 Sep 2016, Ksenija Stanojević wrote:
> On Wed, Aug 31, 2016 at 2:05 PM, Lee Jones <lee.jones@xxxxxxxxxx> wrote:
> > On Thu, 18 Aug 2016, Ksenija Stanojevic wrote:
> >
> > > Add core files for mxs-lradc MFD driver.
> > >
> > > Note: this patch won't compile in iio/testing without this patch:
> > > a8f447be8056 ("mfd: Add resource managed APIs for mfd_add_devices")
> > >
> > > Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@xxxxxxxxx>
> > > ---
> > > Changes in v5:
> > > - use DEFINE_RES_MEM
> > > - don't pass ioreammaped adress to platform cells
> > > - move comment outside of struct mxs_lradc
> > > - change type of argument in mxs_lradc_reg_set, mxs_lradc_reg_clear,
> > > mxs_lradc_reg_wrt (struct mxs_lradc * -> void __iomem *)
> > >
> > > Changes in v4:
> > > - update copyright
> > > - use DEFINE_RES_IRQ_NAMED
> > > - remove mxs_lradc_add_device function
> > > - use struct mfd_cell in static form
> > > - improve spacing
> > > - remove unnecessary comment
> > > - remove platform_get_irq
> > > - remove touch_ret and use ret instead
> > > - rename use_touchscreen to touchscreen_wire
> > > - use goto statements
> > > - remove irq[13], irq_count and irq_name from struct mxs_lradc
> > > - remove all defines from inside the struct definition
> > >
> > > Changes in v3:
> > > - add note to commit message
> > > - move switch statement into if(touch_ret == 0) branch
> > > - add MODULE_AUTHOR
> > >
> > > Changes in v2:
> > > - do not change spacing in Kconfig
> > > - make struct mfd_cell part of struct mxs_lradc
> > > - use switch instead of if in mxs_lradc_irq_mask
> > > - use only necessary header files in mxs_lradc.h
> > > - use devm_mfd_add_device
> > > - use separate function to register mfd device
> > > - change licence to GPL
> > > - add copyright
> > >
> > > drivers/mfd/Kconfig | 17 +++
> > > drivers/mfd/Makefile | 1 +
> > > drivers/mfd/mxs-lradc.c | 255 ++++++++++++++++++++++++++++++++++++++++++
> > > include/linux/mfd/mxs-lradc.h | 194 ++++++++++++++++++++++++++++++++
> > > 4 files changed, 467 insertions(+)
> > > create mode 100644 drivers/mfd/mxs-lradc.c
> > > create mode 100644 include/linux/mfd/mxs-lradc.h
[...]
> > > +static int mxs_lradc_probe(struct platform_device *pdev)
> > > +{
> > > + const struct of_device_id *of_id;
> > > + struct device *dev = &pdev->dev;
> > > + struct device_node *node = dev->of_node;
> > > + struct mxs_lradc *lradc;
> > > + struct mfd_cell *cells = NULL;
> > > + int ret = 0;
> > > + u32 ts_wires = 0;
> > > +
> > > + lradc = devm_kzalloc(&pdev->dev, sizeof(*lradc), GFP_KERNEL);
> > > + if (!lradc)
> > > + return -ENOMEM;
> > > +
> > > + of_id = of_match_device(mxs_lradc_dt_ids, &pdev->dev);
> > > + lradc->soc = (enum mxs_lradc_id)of_id->data;
> >
> > Unnecessary cast.
>
> If I remove the cast I get this error:
> drivers/mfd/mxs-lradc.c:148:13: error: incompatible types when
> assigning to type ‘enum mxs_lradc_id’ from type ‘const void * const’
Ah, because it's a const. Fair enough.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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