Re: [PATCH 2/2] ARM: imx: convert camera init to use platform_device_register_full()

From: Uwe Kleine-König
Date: Mon May 19 2014 - 02:27:45 EST


Hello Emil,

thanks for your effort.

On Sun, May 18, 2014 at 10:51:00PM +0200, Emil Goode wrote:
> This converts the imx camera allocation and initialization functions
> to use platform_device_register_full() thus simplifying the code.
>
> Signed-off-by: Emil Goode <emilgoode@xxxxxxxxx>
> ---
> Only build tested, unfortunately I currently don't have the hardware.
>
> arch/arm/mach-imx/devices/platform-ipu-core.c | 43 +++++++++----------------
> arch/arm/mach-imx/mach-mx31_3ds.c | 5 ++-
> arch/arm/mach-imx/mach-mx31moboard.c | 6 ++--
> arch/arm/mach-imx/mach-mx35_3ds.c | 5 ++-
> arch/arm/mach-imx/mach-pcm037.c | 5 ++-
> 5 files changed, 23 insertions(+), 41 deletions(-)
>
> diff --git a/arch/arm/mach-imx/devices/platform-ipu-core.c b/arch/arm/mach-imx/devices/platform-ipu-core.c
> index 6bd7c3f..13ea542 100644
> --- a/arch/arm/mach-imx/devices/platform-ipu-core.c
> +++ b/arch/arm/mach-imx/devices/platform-ipu-core.c
> @@ -69,42 +69,29 @@ struct platform_device *__init imx_alloc_mx3_camera(
IMHO you should better rename the function because now it doesn't only
allocate the device, but also registers it.

Also I doubt that it's OK to call dma_declare_coherent_memory after the
device is added. In this case maybe extend
platform_device_register_full? And also add a warning to
dma_declare_coherent_memory if it is called for an already added device?
(Added a few people to Cc: that might be able to comment this. I don't
even know if there is a reliable way to check if a device is already
added.)

Best regards
Uwe

--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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