On 16/01/18 03:11, Tony Lindgren wrote:
We can support the RSTCTRL reset registers on many TI SoCs with reset-simple. Cc: Dave Gerlach <d-gerlach@xxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Nishant Menon <nm@xxxxxx> Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Suman Anna <s-anna@xxxxxx> Cc: Tero Kristo <t-kristo@xxxxxx> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> --- That's all there is to it :) Naturally this can wait for v4.17 if necessary.
Thats pretty neat. :) -Tero
--- .../devicetree/bindings/reset/ti-rstctrl.txt | 29 ++++++++++++++++++++++ drivers/reset/Kconfig | 2 +- drivers/reset/reset-simple.c | 1 + 3 files changed, 31 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/reset/ti-rstctrl.txt diff --git a/Documentation/devicetree/bindings/reset/ti-rstctrl.txt b/Documentation/devicetree/bindings/reset/ti-rstctrl.txt new file mode 100644 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/ti-rstctrl.txt @@ -0,0 +1,29 @@ +TI RSTCTRL Reset Controller + +Required properties: +- compatible : "ti,rstctrl" +- reg : Should contain 1 register ranges(address and length) +- #reset-cells: 1 + +Example: + + prcm: prcm@200000 { + compatible = "ti,am3-prcm", "simple-bus"; + reg = <0x200000 0x4000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x200000 0x4000>; + + prm_gfx: prm@1100 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x1100 0x100>; + + gfx_rstctrl: rstctrl@4 { + reg = <0x4 0x4>; + #reset-cells = <1>; + compatible = "ti,rstctrl"; + }; + }; + }; diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig --- a/drivers/reset/Kconfig +++ b/drivers/reset/Kconfig @@ -83,7 +83,7 @@ config RESET_PISTACHIOconfig RESET_SIMPLEbool "Simple Reset Controller Driver" if COMPILE_TEST - default ARCH_SOCFPGA || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX + default ARCH_OMAP2PLUS || ARCH_SOCFPGA || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX help This enables a simple reset controller driver for reset lines that that can be asserted and deasserted by toggling bits in a contiguous, diff --git a/drivers/reset/reset-simple.c b/drivers/reset/reset-simple.c --- a/drivers/reset/reset-simple.c +++ b/drivers/reset/reset-simple.c @@ -123,6 +123,7 @@ static const struct of_device_id reset_simple_dt_ids[] = { { .compatible = "st,stm32-rcc", }, { .compatible = "allwinner,sun6i-a31-clock-reset", .data = &reset_simple_active_low }, + { .compatible = "ti,rstctrl", }, { .compatible = "zte,zx296718-reset", .data = &reset_simple_active_low }, { /* sentinel */ },
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