On Mon, 10 Dec 2012 20:45:55 +0100, Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> wrote: > s5p-csis is platform device driver for MIPI-CSI frontend to the FIMC > (camera host interface DMA engine and image processor). This patch > adds support for instantiating the MIPI-CSIS devices from DT and > parsing all SoC and board specific properties from device tree. > > Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> > Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> > --- > .../bindings/media/soc/samsung-mipi-csis.txt | 82 +++++++++++ > drivers/media/platform/s5p-fimc/mipi-csis.c | 155 +++++++++++++++----- > drivers/media/platform/s5p-fimc/mipi-csis.h | 1 + > 3 files changed, 202 insertions(+), 36 deletions(-) > create mode 100644 Documentation/devicetree/bindings/media/soc/samsung-mipi-csis.txt > > diff --git a/Documentation/devicetree/bindings/media/soc/samsung-mipi-csis.txt b/Documentation/devicetree/bindings/media/soc/samsung-mipi-csis.txt > new file mode 100644 > index 0000000..f57cbdc > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/soc/samsung-mipi-csis.txt > @@ -0,0 +1,82 @@ > +Samsung S5P/EXYNOS SoC MIPI-CSI2 receiver (MIPI CSIS) > +----------------------------------------------------- > + > +Required properties: > + > +- compatible : "samsung,s5pv210-csis" for S5PV210 SoCs, > + "samsung,exynos4210-csis" for Exynos4210 and later SoCs; > +- reg : physical base address and size of the device memory mapped > + registers; > +- interrupts : should contain MIPI CSIS interrupt; the format of the > + interrupt specifier depends on the interrupt controller; > +- max-data-lanes : maximum number of data lanes supported (SoC specific); > +- vddio-supply : MIPI CSIS I/O and PLL voltage supply (e.g. 1.8V); > +- vddcore-supply : MIPI CSIS Core voltage supply (e.g. 1.1V). > + > +Optional properties: > + > +- clock-frequency : The IP's main (system bus) clock frequency in Hz, default > + value when this property is not specified is 166 MHz; > +- samsung,csis,wclk : CSI-2 wrapper clock selection. If this property is present > + external clock from CMU will be used, if not bus clock will > + be selected. > + > +The device node should contain one 'port' child node with one child 'endpoint' > +node, as outlined in the common media bindings specification. See > +Documentation/devicetree/bindings/media/v4l2.txt for details. The following are > +properties specific to those nodes. (TODO: update the file path) > + > +port node > +--------- > + > +- reg : (required) must be 2 for camera C input (CSIS0) or 3 for > + camera D input (CSIS1); 'reg' has a very specific definition. If you're going to use a reg property here, then the parent nodes need to have #address-cells=<1>;#size-cells=<0>; properties to define the address specifier format. However since you're identifying port numbers that aren't really addresses I would suggest simply changing this property to something like 'port-num'. Otherwise the binding looks good. g. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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