Add interconnect bandwidth scaling supported strings for qcom-sdhci controller.
Signed-off-by: Pradeep P V K <[email protected]> Acked-by: Rob Herring <[email protected]> Reviewed-by: Bjorn Andersson <[email protected]> --- Documentation/devicetree/bindings/mmc/sdhci-msm.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt index b8e1d2b..3b602fd 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt @@ -54,6 +54,21 @@ Required properties: - qcom,dll-config: Chipset and Platform specific value. Use this field to specify the DLL_CONFIG register value as per Hardware Programming Guide. +Optional Properties: +* Following bus parameters are required for interconnect bandwidth scaling: +- interconnects: Pairs of phandles and interconnect provider specifier + to denote the edge source and destination ports of + the interconnect path. + +- interconnect-names: For sdhc, we have two main paths. + 1. Data path : sdhc to ddr + 2. Config path : cpu to sdhc + For Data interconnect path the name supposed to be + is "sdhc-ddr" and for config interconnect path it is + "cpu-sdhc". + Please refer to Documentation/devicetree/bindings/ + interconnect/ for more details. + Example: sdhc_1: sdhci@f9824900 { @@ -71,6 +86,9 @@ Example: clocks = <&gcc GCC_SDCC1_APPS_CLK>, <&gcc GCC_SDCC1_AHB_CLK>; clock-names = "core", "iface"; + interconnects = <&qnoc MASTER_SDCC_ID &qnoc SLAVE_DDR_ID>, + <&qnoc MASTER_CPU_ID &qnoc SLAVE_SDCC_ID>; + interconnect-names = "sdhc-ddr","cpu-sdhc"; qcom,dll-config = <0x000f642c>; qcom,ddr-config = <0x80040868>; -- 1.9.1
