Re: [PATCH] reset: ti-rstctrl: use the reset-simple driver

From: Tony Lindgren
Date: Fri Jan 19 2018 - 18:50:53 EST


* Suman Anna <s-anna@xxxxxx> [180119 23:30]:
> On 01/19/2018 03:33 PM, Tony Lindgren wrote:
> > OK let's do some tests on that, I'll take a look at doing a dts
> > file over next few weeks.
>
> You can look up the patches folder in the above repo, there are some
> example nodes there already, they are rather straight-forward.

Just for reference, here's what I played with but keep getting
-EPROBE_DEFER somewhere during init.

Regards,

Tony

prm: prm@6000 {
...
ranges = <0 0x6000 0x3000>;

prm_dsp: prm@400 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x400 0x100>;

dsp_rstctrl: rstctrl@10 {
compatible = "ti,rstctrl";
reg = <0x10 0x4>;
#reset-cells = <1>;
};
};
...
};

target-module@4a066000 {
compatible = "ti,sysc-omap2", "ti,sysc";
ti,hwmods = "mmu_dsp";
reg = <0x4a066000 0x4>,
<0x4a066010 0x4>,
<0x4a066014 0x4>;
reg-names = "rev", "sysc", "syss";
ti,sysc-mask = <(SYSC_OMAP2_CLOCKACTIVITY |
SYSC_OMAP2_SOFTRESET |
SYSC_OMAP2_AUTOIDLE)>;
ti,sysc-sidle = <SYSC_IDLE_FORCE>,
<SYSC_IDLE_NO>,
<SYSC_IDLE_SMART>;
clocks = <&tesla_clkctrl OMAP4_DSP_CLKCTRL 0>;
clock-names = "fck";
resets = <&dsp_rstctrl 1>,
<&dsp_rstctrl 0>;
reset-names = "rst2", "rst1";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x4a066000 0x1000>;

mmu_dsp: mmu@0 {
compatible = "ti,omap4-iommu";
reg = <0 0x100>;
interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
#iommu-cells = <0>;
};
};