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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
> 

  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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