linux-kernel - Re: [PATCH v5] dma: Add Xilinx AXI Direct Memory Access Engine driver support

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Date:	Mon, 02 Mar 2015 23:01:09 +0100
From:	Paul Bolle <pebolle@...cali.nl>
To:	Kedareswara rao Appana <appana.durga.rao@...inx.com>
Cc:	dan.j.williams@...el.com, vinod.koul@...el.com,
	michal.simek@...inx.com, soren.brinkmann@...inx.com,
	dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, appanad@...inx.com,
	anirudh@...inx.com, svemula@...inx.com,
	Srikanth Thokala <sthokal@...inx.com>
Subject: Re: [PATCH v5] dma: Add Xilinx AXI Direct Memory Access Engine
 driver support

On Mon, 2015-03-02 at 23:25 +0530, Kedareswara rao Appana wrote:
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -425,6 +425,19 @@ config IMG_MDC_DMA
>  	help
>  	  Enable support for the IMG multi-threaded DMA controller (MDC).
>  
> +config XILINX_DMA
> +	tristate "Xilinx AXI DMA Engine"
> +	depends on (ARCH_ZYNQ || MICROBLAZE)
> +	select DMA_ENGINE
> +	help
> +	  Enable support for Xilinx AXI DMA Soft IP.
> +
> +	This engine provides high-bandwidth direct memory access
> +	between memory and AXI4-Stream type target peripherals.
> +	It has two stream interfaces/channels, Memory Mapped to
> +	Stream (MM2S) and Stream to Memory Mapped (S2MM) for the
> +	data transfers.
> +

How did you test this patch? On next-20150302, running x86_64, I got:

$ make ARCH=microblaze menuconfig
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/mconf.o
  SHIPPED scripts/kconfig/zconf.tab.c
  SHIPPED scripts/kconfig/zconf.lex.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTCC  scripts/kconfig/lxdialog/checklist.o
  HOSTCC  scripts/kconfig/lxdialog/util.o
  HOSTCC  scripts/kconfig/lxdialog/inputbox.o
  HOSTCC  scripts/kconfig/lxdialog/textbox.o
  HOSTCC  scripts/kconfig/lxdialog/yesno.o
  HOSTCC  scripts/kconfig/lxdialog/menubox.o
  HOSTLD  scripts/kconfig/mconf
scripts/kconfig/mconf Kconfig
drivers/dma/Kconfig:436: syntax error
drivers/dma/Kconfig:435: unknown option "This"
drivers/dma/Kconfig:436: unknown option "between"
drivers/dma/Kconfig:437: unknown option "It"
drivers/dma/Kconfig:438: unknown option "Stream"
drivers/dma/Kconfig:439: unknown option "data"
make[1]: *** [menuconfig] Error 1
make: *** [menuconfig] Error 2

Caused by the invalid indentation used here. You should add two spaces
after the initial tab in lines 436 through 439.


Paul Bolle

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