dt-bindings: i3c: add header for generic I3C flags
Add header file for generic I3C flags to avoid hard code in dts file.
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Reviewed-by: Frank Li <frank.li@nxp.com>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240715225351.3237284-1-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
diff --git a/Documentation/devicetree/bindings/i3c/i3c.yaml b/Documentation/devicetree/bindings/i3c/i3c.yaml
index 113957e..e25fa72 100644
--- a/Documentation/devicetree/bindings/i3c/i3c.yaml
+++ b/Documentation/devicetree/bindings/i3c/i3c.yaml
@@ -91,6 +91,7 @@
- const: 0
- description: |
Shall encode the I3C LVR (Legacy Virtual Register):
+ See include/dt-bindings/i3c/i3c.h
bit[31:8]: unused/ignored
bit[7:5]: I2C device index. Possible values:
* 0: I2C device has a 50 ns spike filter
@@ -153,6 +154,8 @@
examples:
- |
+ #include <dt-bindings/i3c/i3c.h>
+
i3c@d040000 {
compatible = "cdns,i3c-master";
clocks = <&coreclock>, <&i3csysclock>;
@@ -166,7 +169,7 @@
/* I2C device. */
eeprom@57 {
compatible = "atmel,24c01";
- reg = <0x57 0x0 0x10>;
+ reg = <0x57 0x0 (I2C_FM | I2C_FILTER)>;
pagesize = <0x8>;
};
diff --git a/MAINTAINERS b/MAINTAINERS
index d6c9016..8b27d77 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10479,6 +10479,7 @@
F: Documentation/devicetree/bindings/i3c/
F: Documentation/driver-api/i3c
F: drivers/i3c/
+F: include/dt-bindings/i3c/
F: include/linux/i3c/
IBM Operation Panel Input Driver
diff --git a/include/dt-bindings/i3c/i3c.h b/include/dt-bindings/i3c/i3c.h
new file mode 100644
index 0000000..3734392
--- /dev/null
+++ b/include/dt-bindings/i3c/i3c.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * Copyright 2024 NXP
+ */
+
+#ifndef _DT_BINDINGS_I3C_I3C_H
+#define _DT_BINDINGS_I3C_I3C_H
+
+#define I2C_FM (1 << 4)
+#define I2C_FM_PLUS (0 << 4)
+
+#define I2C_FILTER (0 << 5)
+#define I2C_NO_FILTER_HIGH_FREQUENCY (1 << 5)
+#define I2C_NO_FILTER_LOW_FREQUENCY (2 << 5)
+
+#endif
