mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
438236e7c1
This patch adds 3 more clocks to Exynos4 ISP driver. Enabling them is needed to make the hardware operational. Till now it worked only because those clocks were registered with IGNORE_UNUSED flag and were enabled by default after SoC reset. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
51 lines
2.1 KiB
Plaintext
51 lines
2.1 KiB
Plaintext
Exynos4x12 SoC series Imaging Subsystem (FIMC-IS)
|
|
|
|
The FIMC-IS is a subsystem for processing image signal from an image sensor.
|
|
The Exynos4x12 SoC series FIMC-IS V1.5 comprises of a dedicated ARM Cortex-A5
|
|
processor, ISP, DRC and FD IP blocks and peripheral devices such as UART, I2C
|
|
and SPI bus controllers, PWM and ADC.
|
|
|
|
fimc-is node
|
|
------------
|
|
|
|
Required properties:
|
|
- compatible : should be "samsung,exynos4212-fimc-is" for Exynos4212 and
|
|
Exynos4412 SoCs;
|
|
- reg : physical base address and length of the registers set;
|
|
- interrupts : must contain two FIMC-IS interrupts, in order: ISP0, ISP1;
|
|
- clocks : list of clock specifiers, corresponding to entries in
|
|
clock-names property;
|
|
- clock-names : must contain "ppmuispx", "ppmuispx", "lite0", "lite1"
|
|
"mpll", "sysreg", "isp", "drc", "fd", "mcuisp", "gicisp",
|
|
"pwm_isp", "mcuctl_isp", "uart", "ispdiv0", "ispdiv1",
|
|
"mcuispdiv0", "mcuispdiv1", "aclk200", "div_aclk200",
|
|
"aclk400mcuisp", "div_aclk400mcuisp" entries,
|
|
matching entries in the clocks property.
|
|
pmu subnode
|
|
-----------
|
|
|
|
Required properties:
|
|
- reg : must contain PMU physical base address and size of the register set.
|
|
|
|
The following are the FIMC-IS peripheral device nodes and can be specified
|
|
either standalone or as the fimc-is node child nodes.
|
|
|
|
i2c-isp (ISP I2C bus controller) nodes
|
|
------------------------------------------
|
|
|
|
Required properties:
|
|
|
|
- compatible : should be "samsung,exynos4212-i2c-isp" for Exynos4212 and
|
|
Exynos4412 SoCs;
|
|
- reg : physical base address and length of the registers set;
|
|
- clocks : must contain gate clock specifier for this controller;
|
|
- clock-names : must contain "i2c_isp" entry.
|
|
|
|
For the above nodes it is required to specify a pinctrl state named "default",
|
|
according to the pinctrl bindings defined in ../pinctrl/pinctrl-bindings.txt.
|
|
|
|
Device tree nodes of the image sensors' controlled directly by the FIMC-IS
|
|
firmware must be child nodes of their corresponding ISP I2C bus controller node.
|
|
The data link of these image sensors must be specified using the common video
|
|
interfaces bindings, defined in video-interfaces.txt.
|