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authorDave Airlie <airlied@redhat.com>2011-03-14 05:15:13 +0100
committerDave Airlie <airlied@redhat.com>2011-03-14 05:15:13 +0100
commit34db18abd376b2075c760c38f0b861aed379415d (patch)
treec4174e39a2f445f17c25ab206d45c66217bbbf85 /Documentation/devicetree/bindings/spi/fsl-spi.txt
parentdrm: add cap bit to denote if dumb ioctl is available or not. (diff)
parentMerge branch 'drm-intel-fixes' into drm-intel-next (diff)
downloadlinux-34db18abd376b2075c760c38f0b861aed379415d.tar.xz
linux-34db18abd376b2075c760c38f0b861aed379415d.zip
Merge remote branch 'intel/drm-intel-next' of ../drm-next into drm-core-next
* 'intel/drm-intel-next' of ../drm-next: (755 commits) drm/i915: Only wait on a pending flip if we intend to write to the buffer drm/i915/dp: Sanity check eDP existence drm/i915: Rebind the buffer if its alignment constraints changes with tiling drm/i915: Disable GPU semaphores by default drm/i915: Do not overflow the MMADDR write FIFO Revert "drm/i915: fix corruptions on i8xx due to relaxed fencing" drm/i915: Don't save/restore hardware status page address register drm/i915: don't store the reg value for HWS_PGA drm/i915: fix memory corruption with GM965 and >4GB RAM Linux 2.6.38-rc7 Revert "TPM: Long default timeout fix" drm/i915: Re-enable GPU semaphores for SandyBridge mobile drm/i915: Replace vblank PM QoS with "Interrupt-Based AGPBUSY#" Revert "drm/i915: Use PM QoS to prevent C-State starvation of gen3 GPU" drm/i915: Allow relocation deltas outside of target bo drm/i915: Silence an innocuous compiler warning for an unused variable fs/block_dev.c: fix new kernel-doc warning ACPI: Fix build for CONFIG_NET unset mm: <asm-generic/pgtable.h> must include <linux/mm_types.h> x86: Use u32 instead of long to set reset vector back to 0 ... Conflicts: drivers/gpu/drm/i915/i915_gem.c
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+* SPI (Serial Peripheral Interface)
+
+Required properties:
+- cell-index : QE SPI subblock index.
+ 0: QE subblock SPI1
+ 1: QE subblock SPI2
+- compatible : should be "fsl,spi".
+- mode : the SPI operation mode, it can be "cpu" or "cpu-qe".
+- reg : Offset and length of the register set for the device
+- interrupts : <a b> where a is the interrupt number and b is a
+ field that represents an encoding of the sense and level
+ information for the interrupt. This should be encoded based on
+ the information in section 2) depending on the type of interrupt
+ controller you have.
+- interrupt-parent : the phandle for the interrupt controller that
+ services interrupts for this device.
+
+Optional properties:
+- gpios : specifies the gpio pins to be used for chipselects.
+ The gpios will be referred to as reg = <index> in the SPI child nodes.
+ If unspecified, a single SPI device without a chip select can be used.
+
+Example:
+ spi@4c0 {
+ cell-index = <0>;
+ compatible = "fsl,spi";
+ reg = <4c0 40>;
+ interrupts = <82 0>;
+ interrupt-parent = <700>;
+ mode = "cpu";
+ gpios = <&gpio 18 1 // device reg=<0>
+ &gpio 19 1>; // device reg=<1>
+ };
+
+
+* eSPI (Enhanced Serial Peripheral Interface)
+
+Required properties:
+- compatible : should be "fsl,mpc8536-espi".
+- reg : Offset and length of the register set for the device.
+- interrupts : should contain eSPI interrupt, the device has one interrupt.
+- fsl,espi-num-chipselects : the number of the chipselect signals.
+
+Example:
+ spi@110000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mpc8536-espi";
+ reg = <0x110000 0x1000>;
+ interrupts = <53 0x2>;
+ interrupt-parent = <&mpic>;
+ fsl,espi-num-chipselects = <4>;
+ };