Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 417d2e50 authored by Benoit Parrot's avatar Benoit Parrot Committed by Mauro Carvalho Chehab
Browse files

[media] media: platform: add VPFE capture driver support for AM437X 



This patch adds Video Processing Front End (VPFE) driver for
AM437X family of devices
Driver supports the following:
- V4L2 API using MMAP buffer access based on videobuf2 api
- Asynchronous sensor/decoder sub device registration
- DT support

Signed-off-by: default avatarBenoit Parrot <bparrot@ti.com>
Signed-off-by: default avatarDarren Etheridge <detheridge@ti.com>
Signed-off-by: default avatarLad, Prabhakar <prabhakar.csengg@gmail.com>
[hans.verkuil@cisco.com: swapped two lines to fix vpfe_release() & add pinctrl include]
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 3b1635e0

Documentation/devicetree/bindings/media/ti-am437x-vpfe.txt

0 → 100644
+61 −0
Original line number Original line Diff line number Diff line 
Texas Instruments AM437x CAMERA (VPFE)

--------------------------------------



The Video Processing Front End (VPFE) is a key component for image capture

applications. The capture module provides the system interface and the

processing capability to connect RAW image-sensor modules and video decoders

to the AM437x device.



Required properties:

- compatible: must be "ti,am437x-vpfe"

- reg: physical base address and length of the registers set for the device;

- interrupts: should contain IRQ line for the VPFE;

- ti,am437x-vpfe-interface: can be one of the following,

	0 - Raw Bayer Interface.

	1 - 8 Bit BT656 Interface.

	2 - 10 Bit BT656 Interface.

	3 - YCbCr 8 Bit Interface.

	4 - YCbCr 16 Bit Interface.



VPFE supports a single port node with parallel bus. It should contain one

'port' child node with child 'endpoint' node. Please refer to the bindings

defined in Documentation/devicetree/bindings/media/video-interfaces.txt.



Example:

	vpfe: vpfe@f0034000 {

		compatible = "ti,am437x-vpfe";

		reg = <0x48328000 0x2000>;

		interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;



		pinctrl-names = "default", "sleep";

		pinctrl-0 = <&vpfe_pins_default>;

		pinctrl-1 = <&vpfe_pins_sleep>;



		port {

			#address-cells = <1>;

			#size-cells = <0>;



			vpfe0_ep: endpoint {

				remote-endpoint = <&ov2659_1>;

				ti,am437x-vpfe-interface = <0>;

				bus-width = <8>;

				hsync-active = <0>;

				vsync-active = <0>;

			};

		};

	};



	i2c1: i2c@4802a000 {



		ov2659@30 {

			compatible = "ti,ov2659";

			reg = <0x30>;



			port {

				ov2659_1: endpoint {

					remote-endpoint = <&vpfe0_ep>;

					bus-width = <8>;

					mclk-frequency = <12000000>;

				};

			};

	};

MAINTAINERS

+9 −0
Original line number Original line Diff line number Diff line
@@ -8745,6 +8745,15 @@ S: Maintained 
F:	drivers/media/platform/davinci/

F:	drivers/media/platform/davinci/

F:	include/media/davinci/

F:	include/media/davinci/





TI AM437X VPFE DRIVER

M:	Lad, Prabhakar <prabhakar.csengg@gmail.com>

L:	linux-media@vger.kernel.org

W:	http://linuxtv.org/

Q:	http://patchwork.linuxtv.org/project/linux-media/list/

T:	git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git

S:	Maintained

F:	drivers/media/platform/am437x/



SIS 190 ETHERNET DRIVER

SIS 190 ETHERNET DRIVER

M:	Francois Romieu <romieu@fr.zoreil.com>

M:	Francois Romieu <romieu@fr.zoreil.com>

L:	netdev@vger.kernel.org

L:	netdev@vger.kernel.org

drivers/media/platform/Kconfig

+1 −0
Original line number Original line Diff line number Diff line
@@ -118,6 +118,7 @@ config VIDEO_S3C_CAMIF 
source "drivers/media/platform/soc_camera/Kconfig"

source "drivers/media/platform/soc_camera/Kconfig"

source "drivers/media/platform/exynos4-is/Kconfig"

source "drivers/media/platform/exynos4-is/Kconfig"

source "drivers/media/platform/s5p-tv/Kconfig"

source "drivers/media/platform/s5p-tv/Kconfig"

source "drivers/media/platform/am437x/Kconfig"





endif # V4L_PLATFORM_DRIVERS

endif # V4L_PLATFORM_DRIVERS

drivers/media/platform/Makefile

+2 −0
Original line number Original line Diff line number Diff line
@@ -46,4 +46,6 @@ obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1/ 




obj-y	+= omap/

obj-y	+= omap/





obj-$(CONFIG_VIDEO_AM437X_VPFE)		+= am437x/



ccflags-y += -I$(srctree)/drivers/media/i2c
 
ccflags-y += -I$(srctree)/drivers/media/i2c

drivers/media/platform/am437x/Kconfig

0 → 100644
+11 −0
Original line number Original line Diff line number Diff line 
config VIDEO_AM437X_VPFE

	tristate "TI AM437x VPFE video capture driver"

	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API

	depends on SOC_AM43XX || COMPILE_TEST

	select VIDEOBUF2_DMA_CONTIG

	help

	   Support for AM437x Video Processing Front End based Video

	   Capture Driver.



	   To compile this driver as a module, choose M here. The module

	   will be called am437x-vpfe.