From: conor dooley <mail@conchuod.ie>
To: Rob Herring <robh@kernel.org>
Cc: conor.dooley@microchip.com, linus.walleij@linaro.org,
bgolaszewski@baylibre.com, jassisinghbrar@gmail.com,
paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu, a.zummo@towertech.it,
alexandre.belloni@bootlin.com, broonie@kernel.org,
gregkh@linuxfoundation.org, thierry.reding@gmail.com,
u.kleine-koenig@pengutronix.de, lee.jones@linaro.org,
linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
linux-pwm@vger.kernel.org, linux-riscv@lists.infradead.org,
linux-crypto@vger.kernel.org, linux-rtc@vger.kernel.org,
linux-spi@vger.kernel.org, linux-usb@vger.kernel.org,
krzysztof.kozlowski@canonical.com, geert@linux-m68k.org,
bin.meng@windriver.com, heiko@sntech.de,
lewis.hanly@microchip.com, daire.mcnamara@microchip.com,
ivan.griffin@microchip.com, atish.patra@wdc.com
Subject: Re: [PATCH v2 03/17] dt-bindings: soc/microchip: make systemcontroller a mfd
Date: Tue, 21 Dec 2021 23:50:47 +0000 [thread overview]
Message-ID: <YfGEPBe6qV6ieFoD_Xk-rEkBwvyWlVDCxk1PNycMfHsRYK1zMpawiDI25G1EZorczGJGj8e-epWgPs_UB8_-DP4keo1ivgfrLOXJNliFRxE=@conchuod.ie> (raw)
In-Reply-To: <YcIVFZSqt/JSuk3J@robh.at.kernel.org>
On Tuesday, December 21st, 2021 at 17:55, Rob Herring <robh@kernel.org> wrote:
>On Fri, Dec 17, 2021 at 09:33:11AM +0000, conor.dooley@microchip.com wrote:
>> From: Conor Dooley <conor.dooley@microchip.com>
>>
>> Make the system controller on the Polarfire SoC
>> a "simple,mfd" so that the services can be child
>> nodes of the system controller node.
>>
>> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
>> ---
>> .../microchip,mpfs-sys-controller.yaml | 33 +++++++++++++++++--
>> 1 file changed, 30 insertions(+), 3 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/>Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
>> index f699772fedf3..014cb44b8f31 100644
>> --- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
>> +++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
>> @@ -13,13 +13,34 @@ description: |
>> The PolarFire SoC system controller is communicated with via a mailbox.
>> This document describes the bindings for the client portion of that mailbox.
>>
>> -
>> properties:
>> mboxes:
>> maxItems: 1
>>
>> compatible:
>> - const: microchip,mpfs-sys-controller
>> + items:
>> + - const: microchip,mpfs-sys-controller
>> + - const: simple-mfd
>
>'simple-mfd' means there is zero dependency on the parent for the child
>nodes. Isn't 'mboxes' a dependency?
I suppose it is. I was going off what had been done for the bcm2835
firmware for the rpi its also a mailbox providing "services".
(arm/bcm/raspberrypi,bcm2835-firmware.yaml)
>
>> +
>> + hwrandom:
>> + type: object
>> +
>> + properties:
>> + compatible:
>> + const: microchip,mpfs-rng
>> +
>> + required:
>> + - compatible
>> +
>> + sysserv:
>> + type: object
>> +
>> + properties:
>> + compatible:
>> + const: microchip,mpfs-generic-service
>> +
>> + required:
>> + - compatible
>
>There's not really any need to have child nodes which have no resources.
>The driver for microchip,mpfs-sys-controller can create child devices.
I am assuming by this you mean say, take a list of boolean properties and
convert those into child devices? There's a fairly decent number of services
provided by the system controller and these children just represent the
subset that we've implemented so far.
Conor
>
>Rob
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next prev parent reply other threads:[~2021-12-21 23:51 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-17 9:33 [PATCH v2 00/17] Update the Icicle Kit device tree conor.dooley
2021-12-17 9:33 ` [PATCH v2 01/17] dt-bindings: interrupt-controller: create a header for RISC-V interrupts conor.dooley
2021-12-21 17:47 ` Rob Herring
2021-12-17 9:33 ` [PATCH v2 02/17] dt-bindings: soc/microchip: update syscontroller compatibles conor.dooley
2021-12-17 13:24 ` Geert Uytterhoeven
2021-12-17 14:21 ` Rob Herring
2021-12-17 9:33 ` [PATCH v2 03/17] dt-bindings: soc/microchip: make systemcontroller a mfd conor.dooley
2021-12-21 17:55 ` Rob Herring
2021-12-21 23:50 ` conor dooley [this message]
2021-12-17 9:33 ` [PATCH v2 04/17] mailbox: change mailbox-mpfs compatible string conor.dooley
2021-12-17 13:25 ` Geert Uytterhoeven
2021-12-17 9:33 ` [PATCH v2 05/17] dt-bindings: i2c: add bindings for microchip mpfs i2c conor.dooley
2021-12-17 14:21 ` Rob Herring
2021-12-17 9:33 ` [PATCH v2 06/17] dt-bindings: rng: add bindings for microchip mpfs rng conor.dooley
2021-12-17 14:53 ` Krzysztof Kozlowski
2021-12-17 15:07 ` Krzysztof Kozlowski
2021-12-17 15:22 ` Conor.Dooley
2021-12-17 15:47 ` Krzysztof Kozlowski
2021-12-17 16:26 ` conor dooley
2021-12-17 9:33 ` [PATCH v2 07/17] dt-bindings: rtc: add bindings for microchip mpfs rtc conor.dooley
2021-12-17 14:21 ` Rob Herring
2021-12-20 14:37 ` Rob Herring
2021-12-17 9:33 ` [PATCH v2 08/17] dt-bindings: soc/microchip: add bindings for mpfs system services conor.dooley
2021-12-17 9:33 ` [PATCH v2 09/17] dt-bindings: gpio: add bindings for microchip mpfs gpio conor.dooley
2021-12-17 14:21 ` Rob Herring
2021-12-17 9:33 ` [PATCH v2 10/17] dt-bindings: spi: add bindings for microchip mpfs spi conor.dooley
2021-12-17 11:17 ` Mark Brown
2021-12-17 11:40 ` Conor.Dooley
2021-12-17 11:43 ` Mark Brown
2021-12-20 8:05 ` Conor.Dooley
2021-12-17 14:21 ` Rob Herring
2021-12-17 9:33 ` [PATCH v2 11/17] dt-bindings: usb: add bindings for microchip mpfs musb conor.dooley
2021-12-17 14:21 ` Rob Herring
2021-12-21 13:32 ` Rob Herring
2021-12-17 9:33 ` [PATCH v2 12/17] dt-bindings: pwm: add microchip corePWM binding conor.dooley
2021-12-17 14:21 ` Rob Herring
2021-12-17 14:58 ` Krzysztof Kozlowski
2021-12-17 9:33 ` [PATCH v2 13/17] riscv: dts: microchip: use hart and clk defines for icicle kit conor.dooley
2021-12-17 13:40 ` Geert Uytterhoeven
2021-12-17 9:33 ` [PATCH v2 14/17] riscv: dts: microchip: add fpga fabric section to " conor.dooley
2021-12-17 13:43 ` Geert Uytterhoeven
2021-12-17 15:32 ` Conor.Dooley
2021-12-17 16:00 ` Geert Uytterhoeven
2022-01-12 9:38 ` Conor.Dooley
2022-01-14 13:35 ` Conor.Dooley
2021-12-17 14:59 ` Krzysztof Kozlowski
2021-12-17 9:33 ` [PATCH v2 15/17] riscv: dts: microchip: refactor icicle kit device tree conor.dooley
2021-12-17 15:04 ` Krzysztof Kozlowski
2021-12-17 15:23 ` Conor.Dooley
2021-12-17 9:33 ` [PATCH v2 16/17] riscv: dts: microchip: update peripherals in " conor.dooley
2021-12-17 9:33 ` [PATCH v2 17/17] MAINTAINERS: update riscv/microchip entry conor.dooley
2021-12-17 15:09 ` Krzysztof Kozlowski
2021-12-23 14:56 ` Conor.Dooley
2021-12-23 17:36 ` Palmer Dabbelt
2022-01-12 13:32 ` Lewis.Hanly
2021-12-17 9:48 ` [PATCH v2 00/17] Update the Icicle Kit device tree Geert Uytterhoeven
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