From 4a3390f1d3b71f0645eb281176f00cd0d5ac2dcb Mon Sep 17 00:00:00 2001 From: Sean Anderson Date: Wed, 24 Jun 2020 06:41:12 -0400 Subject: dm: Add support for simple-pm-bus This type of bus is used in Linux to designate buses which have power domains and/or clocks which need to be enabled before their child devices can be used. Because power domains are automatically enabled before probing in U-Boot, we just need to enable any clocks present. Signed-off-by: Sean Anderson Reviewed-by: Simon Glass --- arch/sandbox/dts/test.dts | 6 ++++++ arch/sandbox/include/asm/clk.h | 1 + 2 files changed, 7 insertions(+) (limited to 'arch/sandbox') diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index a6e2bfd082..b59bf157a9 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -1038,6 +1038,12 @@ mdio: mdio-test { compatible = "sandbox,mdio"; }; + + pm-bus-test { + compatible = "simple-pm-bus"; + clocks = <&clk_sandbox 4>; + power-domains = <&pwrdom 1>; + }; }; #include "sandbox_pmic.dtsi" diff --git a/arch/sandbox/include/asm/clk.h b/arch/sandbox/include/asm/clk.h index 1573e4a134..c184c4bffc 100644 --- a/arch/sandbox/include/asm/clk.h +++ b/arch/sandbox/include/asm/clk.h @@ -21,6 +21,7 @@ enum sandbox_clk_id { SANDBOX_CLK_ID_I2C, SANDBOX_CLK_ID_UART1, SANDBOX_CLK_ID_UART2, + SANDBOX_CLK_ID_BUS, SANDBOX_CLK_ID_COUNT, }; -- cgit