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authorLinus Torvalds <torvalds@linux-foundation.org>2026-04-18 09:44:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-04-18 09:44:22 -0700
commitfba676bd2919ceff5a678c0bd05ab3ac89affaeb (patch)
tree98cda44bbe0f88524a8e504b38e5d825da3f011f /Documentation/devicetree
parent1e769656963e0329b91d32ec76955e077966b603 (diff)
parente336aa3c396ba41fd5a3b818df917a70f39594a5 (diff)
Merge tag 'i2c-for-7.1-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: "The biggest news in this pull request is that it will start the last cycle of me handling the I2C subsystem. From 7.2. on, I will pass maintainership to Andi Shyti who has been maintaining the I2C drivers for a while now and who has done a great job in doing so. We will use this cycle for a hopefully smooth transition. Thanks must go to Andi for stepping up! I will still be around for guidance. Updates: - generic cleanups in npcm7xx, qcom-cci, xiic and designware DT bindings - atr: use kzalloc_flex for alias pool allocation - ixp4xx: convert bindings to DT schema - ocores: use read_poll_timeout_atomic() for polling waits - qcom-geni: skip extra TX DMA TRE for single read messages - s3c24xx: validate SMBus block length before using it - spacemit: refactor xfer path and add K1 PIO support - tegra: identify DVC and VI with SoC data variants - tegra: support SoC-specific register offsets - xiic: switch to devres and generic fw properties - xiic: skip input clock setup on non-OF systems - various minor improvements in other drivers rtl9300: - add per-SoC callbacks and clock support for RTL9607C - add support for new 50 kHz and 2.5 MHz bus speeds - general refactoring in preparation for RTL9607C support New support: - DesignWare GOOG5000 (ACPI HID) - Intel Nova Lake (ACPI ID) - Realtek RTL9607C - SpacemiT K3 binding - Tegra410 register layout support" * tag 'i2c-for-7.1-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (40 commits) i2c: usbio: Add ACPI device-id for NVL platforms i2c: qcom-geni: Avoid extra TX DMA TRE for single read message in GPI mode i2c: atr: use kzalloc_flex i2c: spacemit: introduce pio for k1 i2c: spacemit: move i2c_xfer_msg() i2c: xiic: skip input clock setup on non-OF systems i2c: xiic: use numbered adapter registration i2c: xiic: cosmetic: use resource format specifier in debug log i2c: xiic: cosmetic cleanup i2c: xiic: switch to generic device property accessors i2c: xiic: remove duplicate error message i2c: xiic: switch to devres managed APIs i2c: rtl9300: add RTL9607C i2c controller support i2c: rtl9300: introduce new function properties to driver data i2c: rtl9300: introduce clk struct for upcoming rtl9607 support dt-bindings: i2c: realtek,rtl9301-i2c: extend for clocks and RTL9607C support i2c: rtl9300: introduce a property for 8 bit width reg address i2c: rtl9300: introduce F_BUSY to the reg_fields struct i2c: rtl9300: introduce max length property to driver data i2c: rtl9300: split data_reg into read and write reg ...
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-iop3xx.txt20
-rw-r--r--Documentation/devicetree/bindings/i2c/intel,ixp4xx-i2c.yaml41
-rw-r--r--Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml20
-rw-r--r--Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml15
-rw-r--r--Documentation/devicetree/bindings/i2c/renesas,riic.yaml1
-rw-r--r--Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml2
-rw-r--r--Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml6
7 files changed, 82 insertions, 23 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-iop3xx.txt b/Documentation/devicetree/bindings/i2c/i2c-iop3xx.txt
deleted file mode 100644
index dcc8390e0d24..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-iop3xx.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-i2c Controller on XScale platforms such as IOP3xx and IXP4xx
-
-Required properties:
-- compatible : Must be one of
- "intel,iop3xx-i2c"
- "intel,ixp4xx-i2c";
-- reg
-- #address-cells = <1>;
-- #size-cells = <0>;
-
-Optional properties:
-- Child nodes conforming to i2c bus binding
-
-Example:
-
-i2c@c8011000 {
- compatible = "intel,ixp4xx-i2c";
- reg = <0xc8011000 0x18>;
- interrupts = <33 IRQ_TYPE_LEVEL_LOW>;
-};
diff --git a/Documentation/devicetree/bindings/i2c/intel,ixp4xx-i2c.yaml b/Documentation/devicetree/bindings/i2c/intel,ixp4xx-i2c.yaml
new file mode 100644
index 000000000000..15ef510f6fd8
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/intel,ixp4xx-i2c.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/intel,ixp4xx-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2c Controller on XScale platforms such as IOP3xx and IXP4xx
+
+maintainers:
+ - Andi Shyti <andi.shyti@kernel.org>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - intel,iop3xx-i2c
+ - intel,ixp4xx-i2c
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c@c8011000 {
+ compatible = "intel,ixp4xx-i2c";
+ reg = <0xc8011000 0x18>;
+ interrupts = <33 IRQ_TYPE_LEVEL_LOW>;
+ };
diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
index 399a09409e07..7c497a358e1d 100644
--- a/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
+++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
@@ -27,6 +27,7 @@ properties:
- items:
- enum:
- qcom,kaanapali-cci
+ - qcom,milos-cci
- qcom,qcm2290-cci
- qcom,qcs8300-cci
- qcom,sa8775p-cci
@@ -34,6 +35,7 @@ properties:
- qcom,sc8280xp-cci
- qcom,sdm670-cci
- qcom,sdm845-cci
+ - qcom,sm6150-cci
- qcom,sm6350-cci
- qcom,sm8250-cci
- qcom,sm8450-cci
@@ -251,6 +253,7 @@ allOf:
contains:
enum:
- qcom,sa8775p-cci
+ - qcom,sm6150-cci
- qcom,sm8550-cci
- qcom,sm8650-cci
- qcom,x1e80100-cci
@@ -265,6 +268,23 @@ allOf:
- const: cpas_ahb
- const: cci
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,milos-cci
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+ clock-names:
+ items:
+ - const: soc_ahb
+ - const: cpas_ahb
+ - const: cci
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml b/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml
index f9a449fee2b0..5873cfdc5b3e 100644
--- a/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml
@@ -15,6 +15,8 @@ description:
assigned to either I2C controller.
RTL9310 SoCs have equal capabilities but support 12 common SDA lines which
can be assigned to either I2C controller.
+ RTL9607C SoCs have equal capabilities but each controller only supports 1
+ SCL/SDA line.
properties:
compatible:
@@ -34,6 +36,7 @@ properties:
- enum:
- realtek,rtl9301-i2c
- realtek,rtl9310-i2c
+ - realtek,rtl9607-i2c
reg:
items:
@@ -51,6 +54,9 @@ properties:
The SCL line number of this I2C controller.
enum: [ 0, 1 ]
+ clocks:
+ maxItems: 1
+
patternProperties:
'^i2c@[0-9ab]$':
$ref: /schemas/i2c/i2c-controller.yaml
@@ -81,6 +87,15 @@ allOf:
then:
patternProperties:
'^i2c@[89ab]$': false
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: realtek,rtl9607-i2c
+ then:
+ required:
+ - realtek,scl
+ - clocks
required:
- compatible
diff --git a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
index 6876eade431b..ae1f71eadc66 100644
--- a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
+++ b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
@@ -25,6 +25,7 @@ properties:
- items:
- enum:
- renesas,riic-r9a08g045 # RZ/G3S
+ - renesas,riic-r9a08g046 # RZ/G3L
- renesas,riic-r9a09g047 # RZ/G3E
- renesas,riic-r9a09g056 # RZ/V2N
- const: renesas,riic-r9a09g057 # RZ/V2H(P)
diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
index 082fdc2e69ea..467bdcbb8538 100644
--- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
@@ -32,8 +32,6 @@ properties:
- const: renesas,r9a06g032-i2c # RZ/N1D
- const: renesas,rzn1-i2c # RZ/N1
- const: snps,designware-i2c
- - description: Baikal-T1 SoC System I2C controller
- const: baikal,bt1-sys-i2c
- description: Mobileye EyeQ DesignWare I2C controller
items:
- enum:
diff --git a/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
index 5896fb120501..8c04c675b25e 100644
--- a/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
@@ -14,7 +14,11 @@ allOf:
properties:
compatible:
- const: spacemit,k1-i2c
+ oneOf:
+ - items:
+ - const: spacemit,k3-i2c
+ - const: spacemit,k1-i2c
+ - const: spacemit,k1-i2c
reg:
maxItems: 1