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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2013-03-08 14:41:47 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-31 15:54:59 +0200 |
| commit | 4163851f7b997e24602cad8e0eae96d31a252548 (patch) | |
| tree | 4b012b4ad94b146bd8739389d1a1f330b344ccd6 /Documentation | |
| parent | [media] s5p-fimc: Add device tree based sensors registration (diff) | |
| download | linux-4163851f7b997e24602cad8e0eae96d31a252548.tar.xz linux-4163851f7b997e24602cad8e0eae96d31a252548.zip | |
[media] s5p-fimc: Use pinctrl API for camera ports configuration
Before the camera ports can be used the pinmux needs to be configured
properly. This patch adds a function to set the camera ports pinctrl
to a default state within the media driver's probe().
The camera port(s) are then configured for the video bus operation.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/media/samsung-fimc.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/media/samsung-fimc.txt b/Documentation/devicetree/bindings/media/samsung-fimc.txt index bcb0de7462a2..2a63ddd23d16 100644 --- a/Documentation/devicetree/bindings/media/samsung-fimc.txt +++ b/Documentation/devicetree/bindings/media/samsung-fimc.txt @@ -21,6 +21,15 @@ Required properties: - clock-names : must contain "fimc", "sclk_fimc" entries, matching entries in the clocks property. +The pinctrl bindings defined in ../pinctrl/pinctrl-bindings.txt must be used +to define a required pinctrl state named "default" and optional pinctrl states: +"idle", "active-a", active-b". These optional states can be used to switch the +camera port pinmux at runtime. The "idle" state should configure both the camera +ports A and B into high impedance state, especially the CAMCLK clock output +should be inactive. For the "active-a" state the camera port A must be activated +and the port B deactivated and for the state "active-b" it should be the other +way around. + The 'camera' node must include at least one 'fimc' child node. @@ -146,6 +155,9 @@ Example: #size-cells = <1>; status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&cam_port_a_clk_active>; + /* parallel camera ports */ parallel-ports { /* camera A input */ |