ARM: dts: r8a7792: add I2C support

Define the generic R8A7792 parts of the I2C[0-5] device nodes.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7792.dtsi b/arch/arm/boot/dts/r8a7792.dtsi
index 353bc30..89f248c 100644 (file)
--- a/arch/arm/boot/dts/r8a7792.dtsi
+++ b/arch/arm/boot/dts/r8a7792.dtsi
@@ -18,6 +18,15 @@
        #address-cells = <2>;
        #size-cells = <2>;
 
+       aliases {
+               i2c0 = &i2c0;
+               i2c1 = &i2c1;
+               i2c2 = &i2c2;
+               i2c3 = &i2c3;
+               i2c4 = &i2c4;
+               i2c5 = &i2c5;
+};
+
        cpus {
                #address-cells = <1>;
                #size-cells = <0>;
@@ -468,6 +477,79 @@
                        status = "disabled";
                };
 
+               /* I2C doesn't need pinmux */
+               i2c0: i2c@e6508000 {
+                       compatible = "renesas,i2c-r8a7792";
+                       reg = <0 0xe6508000 0 0x40>;
+                       interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&mstp9_clks R8A7792_CLK_I2C0>;
+                       power-domains = <&sysc R8A7792_PD_ALWAYS_ON>;
+                       i2c-scl-internal-delay-ns = <6>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
+               i2c1: i2c@e6518000 {
+                       compatible = "renesas,i2c-r8a7792";
+                       reg = <0 0xe6518000 0 0x40>;
+                       interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&mstp9_clks R8A7792_CLK_I2C1>;
+                       power-domains = <&sysc R8A7792_PD_ALWAYS_ON>;
+                       i2c-scl-internal-delay-ns = <6>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
+               i2c2: i2c@e6530000 {
+                       compatible = "renesas,i2c-r8a7792";
+                       reg = <0 0xe6530000 0 0x40>;
+                       interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&mstp9_clks R8A7792_CLK_I2C2>;
+                       power-domains = <&sysc R8A7792_PD_ALWAYS_ON>;
+                       i2c-scl-internal-delay-ns = <6>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
+               i2c3: i2c@e6540000 {
+                       compatible = "renesas,i2c-r8a7792";
+                       reg = <0 0xe6540000 0 0x40>;
+                       interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&mstp9_clks R8A7792_CLK_I2C3>;
+                       power-domains = <&sysc R8A7792_PD_ALWAYS_ON>;
+                       i2c-scl-internal-delay-ns = <6>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
+               i2c4: i2c@e6520000 {
+                       compatible = "renesas,i2c-r8a7792";
+                       reg = <0 0xe6520000 0 0x40>;
+                       interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&mstp9_clks R8A7792_CLK_I2C4>;
+                       power-domains = <&sysc R8A7792_PD_ALWAYS_ON>;
+                       i2c-scl-internal-delay-ns = <6>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
+               i2c5: i2c@e6528000 {
+                       compatible = "renesas,i2c-r8a7792";
+                       reg = <0 0xe6528000 0 0x40>;
+                       interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&mstp9_clks R8A7792_CLK_I2C5>;
+                       power-domains = <&sysc R8A7792_PD_ALWAYS_ON>;
+                       i2c-scl-internal-delay-ns = <110>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
                can0: can@e6e80000 {
                        compatible = "renesas,can-r8a7792",
                                     "renesas,rcar-gen2-can";