Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/i2c/renesas,iic.txt b/Documentation/devicetree/bindings/i2c/renesas,iic.txt
new file mode 100644
index 000000000..93d412832
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/renesas,iic.txt
@@ -0,0 +1,72 @@
+Device tree configuration for Renesas IIC (sh_mobile) driver
+
+Required properties:
+- compatible      :
+			- "renesas,iic-r8a73a4" (R-Mobile APE6)
+			- "renesas,iic-r8a7740" (R-Mobile A1)
+			- "renesas,iic-r8a7742" (RZ/G1H)
+			- "renesas,iic-r8a7743" (RZ/G1M)
+			- "renesas,iic-r8a7744" (RZ/G1N)
+			- "renesas,iic-r8a7745" (RZ/G1E)
+			- "renesas,iic-r8a774a1" (RZ/G2M)
+			- "renesas,iic-r8a774b1" (RZ/G2N)
+			- "renesas,iic-r8a774c0" (RZ/G2E)
+			- "renesas,iic-r8a774e1" (RZ/G2H)
+			- "renesas,iic-r8a7790" (R-Car H2)
+			- "renesas,iic-r8a7791" (R-Car M2-W)
+			- "renesas,iic-r8a7792" (R-Car V2H)
+			- "renesas,iic-r8a7793" (R-Car M2-N)
+			- "renesas,iic-r8a7794" (R-Car E2)
+			- "renesas,iic-r8a7795" (R-Car H3)
+			- "renesas,iic-r8a7796" (R-Car M3-W)
+			- "renesas,iic-r8a77961" (R-Car M3-W+)
+			- "renesas,iic-r8a77965" (R-Car M3-N)
+			- "renesas,iic-r8a77990" (R-Car E3)
+			- "renesas,iic-sh73a0" (SH-Mobile AG5)
+			- "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1
+							compatible device)
+			- "renesas,rcar-gen3-iic" (generic R-Car Gen3 or RZ/G2
+							compatible device)
+			- "renesas,rmobile-iic" (generic device)
+
+			When compatible with a generic R-Car version, nodes
+			must list the SoC-specific version corresponding to
+			the platform first followed by the generic R-Car
+			version.
+
+			When compatible with "renesas,rmobile-iic" it should
+			be the last compatibility string listed.
+
+			The r8a77990 (R-Car E3) and r8a774c0 (RZ/G2E)
+			controllers are not considered compatible with
+			"renesas,rcar-gen3-iic" or "renesas,rmobile-iic"
+			due to the absence of automatic transmission registers.
+
+- reg             : address start and address range size of device
+- interrupts      : interrupt of device
+- clocks          : clock for device
+- #address-cells  : should be <1>
+- #size-cells     : should be <0>
+
+Optional properties:
+- clock-frequency : frequency of bus clock in Hz. Default 100kHz if unset.
+- dmas            : Must contain a list of two references to DMA
+		    specifiers, one for transmission, and one for
+		    reception.
+- dma-names       : Must contain a list of two DMA names, "tx" and "rx".
+
+
+Pinctrl properties might be needed, too. See there.
+
+Example:
+
+	iic0: i2c@e6500000 {
+		compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic",
+			     "renesas,rmobile-iic";
+		reg = <0 0xe6500000 0 0x425>;
+		interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp3_clks R8A7790_CLK_IIC0>;
+		clock-frequency = <400000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};