dt-bindings: mmc: renesas_sdhi: provide example in bindings documentation

Provide an example of the usage of the DT bindings for TMIO
in their documentation. The example given is for the r8a7790 (R-Car H2).

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
index 54ef642f23a05291258b283431b21b191f0ad39a..b63392d9cc473d063de157515cc265352b763378 100644 (file)
--- a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
@@ -43,3 +43,61 @@ Optional properties:
 - pinctrl-names: should be "default", "state_uhs"
 - pinctrl-0: should contain default/high speed pin ctrl
 - pinctrl-1: should contain uhs mode pin ctrl
+
+Example: R8A7790 (R-Car H2) SDHI controller nodes
+
+       sdhi0: sd@ee100000 {
+               compatible = "renesas,sdhi-r8a7790";
+               reg = <0 0xee100000 0 0x328>;
+               interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&cpg CPG_MOD 314>;
+               dmas = <&dmac0 0xcd>, <&dmac0 0xce>,
+                      <&dmac1 0xcd>, <&dmac1 0xce>;
+               dma-names = "tx", "rx", "tx", "rx";
+               max-frequency = <195000000>;
+               power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+               resets = <&cpg 314>;
+               status = "disabled";
+       };
+
+       sdhi1: sd@ee120000 {
+               compatible = "renesas,sdhi-r8a7790";
+               reg = <0 0xee120000 0 0x328>;
+               interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&cpg CPG_MOD 313>;
+               dmas = <&dmac0 0xc9>, <&dmac0 0xca>,
+                      <&dmac1 0xc9>, <&dmac1 0xca>;
+               dma-names = "tx", "rx", "tx", "rx";
+               max-frequency = <195000000>;
+               power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+               resets = <&cpg 313>;
+               status = "disabled";
+       };
+
+       sdhi2: sd@ee140000 {
+               compatible = "renesas,sdhi-r8a7790";
+               reg = <0 0xee140000 0 0x100>;
+               interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&cpg CPG_MOD 312>;
+               dmas = <&dmac0 0xc1>, <&dmac0 0xc2>,
+                      <&dmac1 0xc1>, <&dmac1 0xc2>;
+               dma-names = "tx", "rx", "tx", "rx";
+               max-frequency = <97500000>;
+               power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+               resets = <&cpg 312>;
+               status = "disabled";
+       };
+
+       sdhi3: sd@ee160000 {
+               compatible = "renesas,sdhi-r8a7790";
+               reg = <0 0xee160000 0 0x100>;
+               interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&cpg CPG_MOD 311>;
+               dmas = <&dmac0 0xd3>, <&dmac0 0xd4>,
+                      <&dmac1 0xd3>, <&dmac1 0xd4>;
+               dma-names = "tx", "rx", "tx", "rx";
+               max-frequency = <97500000>;
+               power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+               resets = <&cpg 311>;
+               status = "disabled";
+       };