Re: [PATCH v3 0/4] dmaengine: Device Tree support for Atmel DMA

[Vinod Koul <vinod.koul@intel.com>]

On Mon, 2011-10-17 at 14:54 +0200, Nicolas Ferre wrote:
> On 10/12/2011 06:57 PM, Nicolas Ferre :
> > This series add the device tree support to Atmel DMA controller driver:
> > at_hdmac.
> > The removal of platform data ease the conversion to device tree. It also have
> > the additional benefit of being simpler and cleaner.
> > 
> > Nicolas Ferre (4):
> >       dmaengine: at_hdmac: platform data move to use .id_table
> >       dmaengine: at_hdmac: add device tree support
> >       ARM: at91/dma: remove platform data from DMA controller
> >       ARM: at91/dma: DMA controller registering with DT support
> > 
> >  .../devicetree/bindings/dma/atmel-dma.txt          |   14 ++++
> >  arch/arm/mach-at91/at91sam9g45_devices.c           |   17 ++---
> >  arch/arm/mach-at91/at91sam9rl_devices.c            |    8 +--
> >  arch/arm/mach-at91/include/mach/at_hdmac.h         |   10 ---
> >  drivers/dma/at_hdmac.c                             |   76 +++++++++++++++++---
> >  drivers/dma/at_hdmac_regs.h                        |    8 ++
> >  6 files changed, 97 insertions(+), 36 deletions(-)
> >  create mode 100644 Documentation/devicetree/bindings/dma/atmel-dma.txt
> 
> Vinod,
> 
> I have just rebased the dmaengine at_hdmac driver patches on top of your
> "next" branch as a "v4" series. I send it to you with Grant's "Acked-by"
> right now.
I manged to fail the compliation with this patch
drivers/dma/at_hdmac.c: In function 'at_dma_get_driver_data':
drivers/dma/at_hdmac.c:1211: error: implicit declaration of function 'of_match_node'
drivers/dma/at_hdmac.c:1211: error: 'atmel_dma_dt_ids' undeclared (first use in this function)
drivers/dma/at_hdmac.c:1211: error: (Each undeclared identifier is reported only once
drivers/dma/at_hdmac.c:1211: error: for each function it appears in.)
drivers/dma/at_hdmac.c:1211: warning: assignment makes pointer from integer without a cast
drivers/dma/at_hdmac.c: At top level:
drivers/dma/at_hdmac.c:1558: error: implicit declaration of function 'of_match_ptr'
drivers/dma/at_hdmac.c:1558: error: 'atmel_dma_dt_ids' undeclared here (not in a function)
drivers/dma/at_hdmac.c:1558: error: initializer element is not constant
drivers/dma/at_hdmac.c:1558: error: (near initialization for 'at_dma_driver.driver.of_match_table')
make[1]: *** [drivers/dma/at_hdmac.o] Error 1

Which, IMO are triggered as one of my configs for at_hdmac did not have
CONFIG_OF enabled. I think at_hdmac should select or depend on this. I
did latter and still I get compilation error :(

drivers/dma/at_hdmac.c:1558: error: implicit declaration of function 'of_match_ptr'
drivers/dma/at_hdmac.c:1558: error: initializer element is not constant
drivers/dma/at_hdmac.c:1558: error: (near initialization for 'at_dma_driver.driver.of_match_table')
make[1]: *** [drivers/dma/at_hdmac.o] Error 1



-- 
~Vinod