summaryrefslogtreecommitdiff
path: root/Documentation/devicetree
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 23:01:02 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 23:01:02 +0300
commit592fa9532d4e4a7590ca383fd537eb4d53fa585a (patch)
tree48ead2d9a235f00fb2635613b1ed96e6b7d4bd4b /Documentation/devicetree
parentefd8929b9eec1cde120abb36d76dd00ff6711023 (diff)
parenta80f24945fcfdff31bdf04837145e56570741a67 (diff)
downloadlinux-592fa9532d4e4a7590ca383fd537eb4d53fa585a.tar.xz
Merge branch 'i2c/for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: - new drivers for Silicon Labs CP2615 and the HiSilicon I2C unit - bigger refactoring for the MPC driver - support for full software nodes - no need to work around with only properties anymore - we now have 'devm_i2c_add_adapter', too - sub-system wide fixes for the RPM refcounting problem which often caused a leak when an error was encountered during probe - the rest is usual driver updates and improvements * 'i2c/for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits) i2c: mediatek: Use scl_int_delay_ns to compensate clock-stretching i2c: mediatek: Fix wrong dma sync flag i2c: mediatek: Fix send master code at more than 1MHz i2c: sh7760: fix IRQ error path i2c: i801: Add support for Intel Alder Lake PCH-M i2c: core: Fix spacing error by checkpatch i2c: s3c2410: simplify getting of_device_id match data i2c: nomadik: Fix space errors i2c: iop3xx: Fix coding style issues i2c: amd8111: Fix coding style issues i2c: mpc: Drop duplicate message from devm_platform_ioremap_resource() i2c: mpc: Use device_get_match_data() helper i2c: mpc: Remove CONFIG_PM_SLEEP ifdeffery i2c: mpc: Use devm_clk_get_optional() i2c: mpc: Update license and copyright i2c: mpc: Interrupt driven transfer i2c: sh7760: add IRQ check i2c: rcar: add IRQ check i2c: mlxbf: add IRQ check i2c: jz4780: add IRQ check ...
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-mpc.txt62
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-mpc.yaml91
2 files changed, 91 insertions, 62 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mpc.txt b/Documentation/devicetree/bindings/i2c/i2c-mpc.txt
deleted file mode 100644
index 42a390526957..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-mpc.txt
+++ /dev/null
@@ -1,62 +0,0 @@
-* I2C
-
-Required properties :
-
- - reg : Offset and length of the register set for the device
- - compatible : should be "fsl,CHIP-i2c" where CHIP is the name of a
- compatible processor, e.g. mpc8313, mpc8543, mpc8544, mpc5121,
- mpc5200 or mpc5200b. For the mpc5121, an additional node
- "fsl,mpc5121-i2c-ctrl" is required as shown in the example below.
-
-Recommended properties :
-
- - 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.
- - fsl,preserve-clocking : boolean; if defined, the clock settings
- from the bootloader are preserved (not touched).
- - clock-frequency : desired I2C bus clock frequency in Hz.
- - fsl,timeout : I2C bus timeout in microseconds.
-
-Examples :
-
- /* MPC5121 based board */
- i2c@1740 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,mpc5121-i2c", "fsl-i2c";
- reg = <0x1740 0x20>;
- interrupts = <11 0x8>;
- interrupt-parent = <&ipic>;
- clock-frequency = <100000>;
- };
-
- i2ccontrol@1760 {
- compatible = "fsl,mpc5121-i2c-ctrl";
- reg = <0x1760 0x8>;
- };
-
- /* MPC5200B based board */
- i2c@3d00 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,mpc5200b-i2c","fsl,mpc5200-i2c","fsl-i2c";
- reg = <0x3d00 0x40>;
- interrupts = <2 15 0>;
- interrupt-parent = <&mpc5200_pic>;
- fsl,preserve-clocking;
- };
-
- /* MPC8544 base board */
- i2c@3100 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,mpc8544-i2c", "fsl-i2c";
- reg = <0x3100 0x100>;
- interrupts = <43 2>;
- interrupt-parent = <&mpic>;
- clock-frequency = <400000>;
- fsl,timeout = <10000>;
- };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml b/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml
new file mode 100644
index 000000000000..7b553d559c83
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-mpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2C-Bus adapter for MPC824x/83xx/85xx/86xx/512x/52xx SoCs
+
+maintainers:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - mpc5200-i2c
+ - fsl,mpc5200-i2c
+ - fsl,mpc5121-i2c
+ - fsl,mpc8313-i2c
+ - fsl,mpc8543-i2c
+ - fsl,mpc8544-i2c
+ - const: fsl-i2c
+ - items:
+ - const: fsl,mpc5200b-i2c
+ - const: fsl,mpc5200-i2c
+ - const: fsl-i2c
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ fsl,preserve-clocking:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ if defined, the clock settings from the bootloader are
+ preserved (not touched)
+
+ fsl,timeout:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ I2C bus timeout in microseconds
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ /* MPC5121 based board */
+ i2c@1740 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mpc5121-i2c", "fsl-i2c";
+ reg = <0x1740 0x20>;
+ interrupts = <11 0x8>;
+ interrupt-parent = <&ipic>;
+ clock-frequency = <100000>;
+ };
+
+ /* MPC5200B based board */
+ i2c@3d00 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mpc5200b-i2c", "fsl,mpc5200-i2c", "fsl-i2c";
+ reg = <0x3d00 0x40>;
+ interrupts = <2 15 0>;
+ interrupt-parent = <&mpc5200_pic>;
+ fsl,preserve-clocking;
+ };
+
+ /* MPC8544 base board */
+ i2c@3100 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mpc8544-i2c", "fsl-i2c";
+ reg = <0x3100 0x100>;
+ interrupts = <43 2>;
+ interrupt-parent = <&mpic>;
+ clock-frequency = <400000>;
+ fsl,timeout = <10000>;
+ };
+...