| Message ID | 20201217000716.11091-3-g-tammana@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add watchdog dt nodes for TI's J7200 SoC | expand |
On 18:07-20201216, Gowtham Tammana wrote: > Add DT entries for main domain watchdog instances. Please add a note to indicate that these are the only watchdogs that are visible to Linux and ARMv8 systems. You may need to repost the dts patch once you have the > > Signed-off-by: Gowtham Tammana <g-tammana@ti.com> > --- > arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi > index 72d6496e88dd..de430d44c2a6 100644 > --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi > @@ -303,6 +303,24 @@ main_uart9: serial@2890000 { > clock-names = "fclk"; > }; > > + watchdog0: watchdog@2200000 { If you are going to strengthen the node-names up (recommend we do that), you might want to use a regex and lock things down. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation//devicetree/bindings/watchdog/ti,rti-wdt.yaml#n26 That is much better option that expecting people to read the example and follow the convention. > + compatible = "ti,j7-rti-wdt"; > + reg = <0x0 0x2200000 0x0 0x100>; we try and keep 0x00 instead of 0x0 -> see other places in the dtsi > + clocks = <&k3_clks 252 1>; > + power-domains = <&k3_pds 252 TI_SCI_PD_EXCLUSIVE>; > + assigned-clocks = <&k3_clks 252 1>; > + assigned-clock-parents = <&k3_clks 252 5>; > + }; > + > + watchdog1: watchdog@2210000 { > + compatible = "ti,j7-rti-wdt"; > + reg = <0x0 0x2210000 0x0 0x100>; > + clocks = <&k3_clks 253 1>; > + power-domains = <&k3_pds 253 TI_SCI_PD_EXCLUSIVE>; > + assigned-clocks = <&k3_clks 253 1>; > + assigned-clock-parents = <&k3_clks 253 5>; > + }; > + > main_i2c0: i2c@2000000 { > compatible = "ti,j721e-i2c", "ti,omap4-i2c"; > reg = <0x00 0x2000000 0x00 0x100>;
Nishanth Menon wrote: > On 18:07-20201216, Gowtham Tammana wrote: > > Add DT entries for main domain watchdog instances. > > Please add a note to indicate that these are the only watchdogs that > are visible to Linux and ARMv8 systems. Will update in v2. > > You may need to repost the dts patch once you have the > > > > Signed-off-by: Gowtham Tammana <g-tammana@ti.com> > > --- > > arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 18 ++++++++++++++++++ > > 1 file changed, 18 insertions(+) > > > > diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi > > index 72d6496e88dd..de430d44c2a6 100644 > > --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi > > +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi > > @@ -303,6 +303,24 @@ main_uart9: serial@2890000 { > > clock-names = "fclk"; > > }; > > > > + watchdog0: watchdog@2200000 { > > If you are going to strengthen the node-names up (recommend we > do that), you might want to use a regex and lock things down. > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation//devicetree/bindings/watchdog/ti,rti-wdt.yaml#n26 > > That is much better option that expecting people to read the example and > follow the convention. there's one defined in [1] which is listed as included schema. [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/watchdog/watchdog.yaml#19 > > > + compatible = "ti,j7-rti-wdt"; > > + reg = <0x0 0x2200000 0x0 0x100>; > we try and keep 0x00 instead of 0x0 -> see other places in the dtsi Do see them now, will fix them in v2. Thanks for the review, Gowtham > > + clocks = <&k3_clks 252 1>; > > + power-domains = <&k3_pds 252 TI_SCI_PD_EXCLUSIVE>; > > + assigned-clocks = <&k3_clks 252 1>; > > + assigned-clock-parents = <&k3_clks 252 5>; > > + }; > > + > > + watchdog1: watchdog@2210000 { > > + compatible = "ti,j7-rti-wdt"; > > + reg = <0x0 0x2210000 0x0 0x100>; > > + clocks = <&k3_clks 253 1>; > > + power-domains = <&k3_pds 253 TI_SCI_PD_EXCLUSIVE>; > > + assigned-clocks = <&k3_clks 253 1>; > > + assigned-clock-parents = <&k3_clks 253 5>; > > + }; > > + > > main_i2c0: i2c@2000000 { > > compatible = "ti,j721e-i2c", "ti,omap4-i2c"; > > reg = <0x00 0x2000000 0x00 0x100>; > > -- > Regards, > Nishanth Menon > Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi index 72d6496e88dd..de430d44c2a6 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi @@ -303,6 +303,24 @@ main_uart9: serial@2890000 { clock-names = "fclk"; }; + watchdog0: watchdog@2200000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x0 0x2200000 0x0 0x100>; + clocks = <&k3_clks 252 1>; + power-domains = <&k3_pds 252 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 252 1>; + assigned-clock-parents = <&k3_clks 252 5>; + }; + + watchdog1: watchdog@2210000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x0 0x2210000 0x0 0x100>; + clocks = <&k3_clks 253 1>; + power-domains = <&k3_pds 253 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 253 1>; + assigned-clock-parents = <&k3_clks 253 5>; + }; + main_i2c0: i2c@2000000 { compatible = "ti,j721e-i2c", "ti,omap4-i2c"; reg = <0x00 0x2000000 0x00 0x100>;
Add DT entries for main domain watchdog instances. Signed-off-by: Gowtham Tammana <g-tammana@ti.com> --- arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)