2020-11-09 09:25:30

by Philipp Zabel

[permalink] [raw]
Subject: Re: [PATCH] staging: media: imx: drop dependency on ipuv3

Hi Martin,

On Mon, 2020-11-09 at 10:13 +0100, Martin Kepplinger wrote:
> As described in NXPs' linux tree, the imx8m SoC includes the same
> CSI bridge hardware that is part of imx7d. We should be able to
> use the "fsl,imx7-csi" driver for imx8m directly.
>
> Since ipuv3 is not relevant for imx8m, drop the build dependency
> for it.
>
> Signed-off-by: Martin Kepplinger <[email protected]>
> ---
> drivers/staging/media/imx/Kconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/media/imx/Kconfig b/drivers/staging/media/imx/Kconfig
> index f555aac8a9d5..98272fd92fe4 100644
> --- a/drivers/staging/media/imx/Kconfig
> +++ b/drivers/staging/media/imx/Kconfig
> @@ -2,7 +2,7 @@
> config VIDEO_IMX_MEDIA
> tristate "i.MX5/6 V4L2 media core driver"

VIDEO_IMX_MEDIA builds imx6-media, which does depend on IMX_IPUV3_CORE.
You only want imx-media-common. I think we have to split the
configuration option in two.

> depends on ARCH_MXC || COMPILE_TEST
> - depends on VIDEO_V4L2 && IMX_IPUV3_CORE
> + depends on VIDEO_V4L2
> select MEDIA_CONTROLLER
> select VIDEO_V4L2_SUBDEV_API
> depends on HAS_DMA

regards
Philipp


2020-11-09 09:48:35

by Martin Kepplinger

[permalink] [raw]
Subject: [PATCH] staging: media: imx: Split config option in 2

As described in NXPs' linux tree, the imx8m SoC includes the same
CSI bridge hardware that is part of imx7d. We should be able to
use the "fsl,imx7-csi" driver for imx8m directly.

Since ipuv3 is not relevant for imx8m we create VIDEO_IMX7_MEDIA and
split up the configuration option in 2 menus (on 1 entry each
for now but that can be changed later).

Signed-off-by: Martin Kepplinger <[email protected]>
---

thanks, you're right. did you have something like this in mind?

martin



drivers/staging/media/imx/Kconfig | 27 ++++++++++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/imx/Kconfig b/drivers/staging/media/imx/Kconfig
index f555aac8a9d5..a888d9b918b5 100644
--- a/drivers/staging/media/imx/Kconfig
+++ b/drivers/staging/media/imx/Kconfig
@@ -13,6 +13,20 @@ config VIDEO_IMX_MEDIA
Say yes here to enable support for video4linux media controller
driver for the i.MX5/6 SOC.

+config VIDEO_IMX7_MEDIA
+ tristate "i.MX7/8 V4L2 media core driver"
+ depends on ARCH_MXC || COMPILE_TEST
+ depends on VIDEO_V4L2
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ depends on HAS_DMA
+ select VIDEOBUF2_DMA_CONTIG
+ select V4L2_FWNODE
+ select V4L2_MEM2MEM_DEV
+ help
+ Say yes here to enable support for video4linux media controller
+ driver for the i.MX7/8M SOC.
+
if VIDEO_IMX_MEDIA
menu "i.MX5/6/7 Media Sub devices"

@@ -23,12 +37,19 @@ config VIDEO_IMX_CSI
help
A video4linux camera sensor interface driver for i.MX5/6.

+endmenu
+endif
+
+if VIDEO_IMX7_MEDIA
+menu "i.MX7/8 Media Sub devices"
+
config VIDEO_IMX7_CSI
- tristate "i.MX6UL/L / i.MX7 Camera Sensor Interface driver"
- depends on VIDEO_IMX_MEDIA && VIDEO_DEV && I2C
+ tristate "i.MX7 / i.MX8M Camera Sensor Interface driver"
+ depends on VIDEO_IMX7_MEDIA && VIDEO_DEV && I2C
default y
help
Enable support for video4linux camera sensor interface driver for
- i.MX6UL/L or i.MX7.
+ i.MX6UL/L, i.MX7 or i.MX8M.
+
endmenu
endif
--
2.20.1

2020-11-09 11:28:58

by Philipp Zabel

[permalink] [raw]
Subject: Re: [PATCH] staging: media: imx: Split config option in 2

On Mon, 2020-11-09 at 10:46 +0100, Martin Kepplinger wrote:
> As described in NXPs' linux tree, the imx8m SoC includes the same
> CSI bridge hardware that is part of imx7d. We should be able to
> use the "fsl,imx7-csi" driver for imx8m directly.
>
> Since ipuv3 is not relevant for imx8m we create VIDEO_IMX7_MEDIA and
> split up the configuration option in 2 menus (on 1 entry each
> for now but that can be changed later).
>
> Signed-off-by: Martin Kepplinger <[email protected]>
> ---
>
> thanks, you're right. did you have something like this in mind?

Not quite, we need a separate option for the imx-media-common module, so
the Makefile has to be changed as well. That option should be selected
by VIDEO_IMX_MEDIA.
I'm not sure if introducing VIDEO_IMX7_MEDIA is necessary, the new
option could also be hidden if selected VIDEO_IMX7_CSI directly.

regards
Philipp