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[media] s5p-fimc: Use pinctrl API for camera ports configuration

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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 <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Sylwester Nawrocki 2013-03-08 10:41:47 -03:00 • committed by Mauro Carvalho Chehab
commit 4163851f7b
3 changed files with 49 additions and 0 deletions
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12
Documentation/devicetree/bindings/media/samsung-fimc.txt
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@ -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 */