From: Rob Herring <robh@kernel.org> To: Paul Cercueil <paul@crapouillou.net> Cc: Mark Rutland <mark.rutland@arm.com>, Ralf Baechle <ralf@linux-mips.org>, Paul Burton <paul.burton@mips.com>, James Hogan <jhogan@kernel.org>, Jonathan Corbet <corbet@lwn.net>, Daniel Lezcano <daniel.lezcano@linaro.org>, Thomas Gleixner <tglx@linutronix.de>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org>, Jason Cooper <jason@lakedaemon.net>, Marc Zyngier <marc.zyngier@arm.com>, Lee Jones <lee.jones@linaro.org>, Mathieu Malaterre <malat@debian.org>, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-doc@vger.kernel.org, linux-clk@vger.kernel.org, od@zcrc.me Subject: Re: [PATCH v12 03/13] dt-bindings: Add doc for the Ingenic TCU drivers Date: Fri, 24 May 2019 15:21:03 -0500 Message-ID: <20190524202103.GA15650@bogus> (raw) In-Reply-To: <20190521145141.9813-4-paul@crapouillou.net> On Tue, May 21, 2019 at 04:51:31PM +0200, Paul Cercueil wrote: > Add documentation about how to properly use the Ingenic TCU > (Timer/Counter Unit) drivers from devicetree. > > Signed-off-by: Paul Cercueil <paul@crapouillou.net> > --- > > Notes: > v4: New patch in this series. Corresponds to V2 patches 3-4-5 with > added content. > > v5: - Edited PWM/watchdog DT bindings documentation to point to the new > document. > - Moved main document to > Documentation/devicetree/bindings/timer/ingenic,tcu.txt > - Updated documentation to reflect the new devicetree bindings. > > v6: - Removed PWM/watchdog documentation files as asked by upstream > - Removed doc about properties that should be implicit > - Removed doc about ingenic,timer-channel / > ingenic,clocksource-channel as they are gone > - Fix WDT clock name in the binding doc > - Fix lengths of register areas in watchdog/pwm nodes > > v7: No change > > v8: - Fix address of the PWM node > - Added doc about system timer and clocksource children nodes > > v9: - Remove doc about system timer and clocksource children > nodes... > - Add doc about ingenic,pwm-channels-mask property > > v10: No change > > v11: Fix info about default value of ingenic,pwm-channels-mask > > v12: Drop sub-nodes for now; they will be introduced in a follow-up > patchset. Why? I believe I acked them. > > .../devicetree/bindings/timer/ingenic,tcu.txt | 59 +++++++++++++++++++ > 1 file changed, 59 insertions(+) > create mode 100644 Documentation/devicetree/bindings/timer/ingenic,tcu.txt > > diff --git a/Documentation/devicetree/bindings/timer/ingenic,tcu.txt b/Documentation/devicetree/bindings/timer/ingenic,tcu.txt > new file mode 100644 > index 000000000000..d101cd72c9b0 > --- /dev/null > +++ b/Documentation/devicetree/bindings/timer/ingenic,tcu.txt > @@ -0,0 +1,59 @@ > +Ingenic JZ47xx SoCs Timer/Counter Unit devicetree bindings > +========================================================== > + > +For a description of the TCU hardware and drivers, have a look at > +Documentation/mips/ingenic-tcu.txt. > + > +Required properties: > + > +- compatible: Must be one of: > + * "ingenic,jz4740-tcu" > + * "ingenic,jz4725b-tcu" > + * "ingenic,jz4770-tcu" > +- reg: Should be the offset/length value corresponding to the TCU registers > +- clocks: List of phandle & clock specifiers for clocks external to the TCU. > + The "pclk", "rtc" and "ext" clocks should be provided. The "tcu" clock > + should be provided if the SoC has it. > +- clock-names: List of name strings for the external clocks. > +- #clock-cells: Should be <1>; > + Clock consumers specify this argument to identify a clock. The valid values > + may be found in <dt-bindings/clock/ingenic,tcu.h>. > +- interrupt-controller : Identifies the node as an interrupt controller > +- #interrupt-cells : Specifies the number of cells needed to encode an > + interrupt source. The value should be 1. > +- interrupt-parent : phandle of the interrupt controller. Drop this 'interrupt-parent' is implied and could be in a parent node. > +- interrupts : Specifies the interrupt the controller is connected to. > + > +Optional properties: > + > +- ingenic,pwm-channels-mask: Bitmask of TCU channels reserved for PWM use. > + Default value is 0xfc. > + > + > +Example > +========================================================== > + > +#include <dt-bindings/clock/jz4770-cgu.h> > + > +/ { > + tcu: timer@10002000 { > + compatible = "ingenic,jz4770-tcu"; > + reg = <0x10002000 0x1000>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0x10002000 0x1000>; > + > + #clock-cells = <1>; > + > + clocks = <&cgu JZ4770_CLK_RTC > + &cgu JZ4770_CLK_EXT > + &cgu JZ4770_CLK_PCLK>; > + clock-names = "rtc", "ext", "pclk"; > + > + interrupt-controller; > + #interrupt-cells = <1>; > + > + interrupt-parent = <&intc>; > + interrupts = <27 26 25>; > + }; > +}; > -- > 2.21.0.593.g511ec345e18 >
next prev parent reply index Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-21 14:51 Ingenic Timer/Counter Unit (TCU) patchset v12 Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 01/13] dt-bindings: ingenic: Add DT bindings for TCU clocks Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 02/13] doc: Add doc for the Ingenic TCU hardware Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 03/13] dt-bindings: Add doc for the Ingenic TCU drivers Paul Cercueil 2019-05-24 20:21 ` Rob Herring [this message] 2019-05-25 19:13 ` Paul Cercueil 2019-06-11 14:57 ` Rob Herring 2019-05-21 14:51 ` [PATCH v12 04/13] mfd: Add Ingenic TCU driver Paul Cercueil 2019-06-22 12:21 ` Paul Cercueil 2019-06-26 13:18 ` Lee Jones 2019-06-26 13:55 ` Paul Cercueil 2019-06-27 6:58 ` Lee Jones 2019-06-27 8:49 ` Paul Cercueil 2019-06-27 9:01 ` Lee Jones 2019-06-27 9:19 ` Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 05/13] clk: ingenic: Add driver for the TCU clocks Paul Cercueil 2019-06-07 21:28 ` Stephen Boyd 2019-06-07 21:59 ` Paul Cercueil 2019-06-07 22:50 ` Stephen Boyd 2019-05-21 14:51 ` [PATCH v12 06/13] irqchip: Add irq-ingenic-tcu driver Paul Cercueil 2019-06-22 12:22 ` Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 07/13] clocksource: Add a new timer-ingenic driver Paul Cercueil 2019-06-22 12:23 ` Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 08/13] clk: jz4740: Add TCU clock Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 09/13] MIPS: jz4740: Add DTS nodes for the TCU drivers Paul Cercueil 2019-05-22 9:21 ` Mathieu Malaterre 2019-05-22 11:15 ` Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 10/13] MIPS: qi_lb60: Reduce system timer and clocksource to 750 kHz Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 11/13] MIPS: CI20: Reduce system timer and clocksource to 3 MHz Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 12/13] MIPS: GCW0: Reduce system timer and clocksource to 750 kHz Paul Cercueil 2019-05-21 14:51 ` [PATCH v12 13/13] MIPS: jz4740: Drop obsolete code Paul Cercueil 2019-05-27 11:39 ` Ingenic Timer/Counter Unit (TCU) patchset v12 Mathieu Malaterre
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