Hi Jonathan,
Seems a bit confusing to me to have viafb-camera/ show up under the
PCI device when built with !CONFIG_FB_VIA_CAMERA.
On Wed, 28 April 2010 Jonathan Corbet <corbet@xxxxxxx> wrote:
> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
> index 22c1662..a969f76 100644
> --- a/drivers/video/Kconfig
> +++ b/drivers/video/Kconfig
> @@ -1516,12 +1516,21 @@ config FB_VIA
> This is the frame buffer device driver for Graphics chips of VIA
> UniChrome (Pro) Family (CLE266,PM800/CN400,P4M800CE/P4M800Pro/
> CN700/VN800,CX700/VX700,P4M890) and Chrome9 Family (K8M890,CN896
> - /P4M900,VX800)
> + /P4M900,VX800,VX855)
> Say Y if you have a VIA UniChrome graphics board.
>
> To compile this driver as a module, choose M here: the
> module will be called viafb.
>
> +config FB_VIA_CAMERA
> + tristate "VIAFB camera controller support"
> + depends on FB_VIA
> + select VIDEOBUF_DMA_SG
> + help
> + Driver support for the integrated camera controller in VIA
> + Chrome9 chipsets. Currently only tested on OLPC xo-1.5 systems
> + with ov7670 sensors.
> +
> config FB_NEOMAGIC
> tristate "NeoMagic display support"
> depends on FB && PCI
> diff --git a/drivers/video/via/Makefile b/drivers/video/via/Makefile
> index 2751cb2..05401b6 100644
> --- a/drivers/video/via/Makefile
> +++ b/drivers/video/via/Makefile
> @@ -3,6 +3,7 @@
> #
>
> obj-$(CONFIG_FB_VIA) += viafb.o
> +obj-$(CONFIG_FB_VIA_CAMERA) += via-camera.o
>
> viafb-y :=viafbdev.o hw.o via_i2c.o dvi.o lcd.o ioctl.o accel.o \
> via_utility.o vt1636.o global.o tblDPASetting.o viamode.o tbl1636.o \
<snip>
> diff --git a/drivers/video/via/via-core.c b/drivers/video/via/via-core.c
> index 83a8d34..58256d0 100644
> --- a/drivers/video/via/via-core.c
> +++ b/drivers/video/via/via-core.c
> @@ -493,7 +493,10 @@ static struct viafb_subdev_info {
> },
> {
> .name = "viafb-i2c",
> - }
> + },
> + {
> + .name = "viafb-camera",
> + },
> };
> #define N_SUBDEVS ARRAY_SIZE(viafb_subdevs)
>
I think the extra 'viafb-camera' entry should be wrapped into a
#if defined(CONFIG_FB_VIA_CAMERA) || defined(CONFIG_FB_VIA_CAMERA_MODULE)
or probably better be dynamically added when camera module is loaded
and/or detects/probes the camera sub-device.
Thanks,
Bruno
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