From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
To: Tyrone Ting <warp5tw@gmail.com>,
avifishman70@gmail.com, tmaimon77@gmail.com,
tali.perry1@gmail.com, venture@google.com, yuenn@google.com,
benjaminfair@google.com, robh+dt@kernel.org,
semen.protsenko@linaro.org, yangyicong@hisilicon.com,
wsa@kernel.org, jie.deng@intel.com, sven@svenpeter.dev,
bence98@sch.bme.hu, lukas.bulwahn@gmail.com, arnd@arndb.de,
olof@lixom.net, andriy.shevchenko@linux.intel.com,
tali.perry@nuvoton.com, Avi.Fishman@nuvoton.com,
tomer.maimon@nuvoton.com, KWLIU@nuvoton.com, JJLIU0@nuvoton.com,
kfting@nuvoton.com
Cc: devicetree@vger.kernel.org, openbmc@lists.ozlabs.org,
linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 1/6] dt-bindings: i2c: npcm: support NPCM845
Date: Mon, 7 Feb 2022 12:27:50 +0100 [thread overview]
Message-ID: <a3ef9a3d-951e-c7b2-f4e5-ec613997501e@canonical.com> (raw)
In-Reply-To: <20220207063338.6570-2-warp5tw@gmail.com>
On 07/02/2022 07:33, Tyrone Ting wrote:
> From: Tyrone Ting <kfting@nuvoton.com>
>
> This commit adds compatible and syscon description for NPCM845 i2c module.
Do not use "This commit" but instead:
https://elixir.bootlin.com/linux/v5.13/source/Documentation/process/submitting-patches.rst#L89
>
> Fixes: 56a1485b102e ("i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver")
> Signed-off-by: Tyrone Ting <kfting@nuvoton.com>
> Signed-off-by: Tali Perry <tali.perry1@gmail.com>
> ---
> .../bindings/i2c/nuvoton,npcm7xx-i2c.yaml | 21 ++++++++++++++-----
> 1 file changed, 16 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
> index 128444942aec..05e58f44b03a 100644
> --- a/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
> +++ b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
> @@ -7,17 +7,22 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
> title: nuvoton NPCM7XX I2C Controller Device Tree Bindings
>
> description: |
> - The NPCM750x includes sixteen I2C bus controllers. All Controllers support
> - both master and slave mode. Each controller can switch between master and slave
> - at run time (i.e. IPMB mode). Each controller has two 16 byte HW FIFO for TX and
> - RX.
> + The NPCM7XX includes sixteen I2C bus controllers and the NPCM8XX includes
> + twenty-seven I2C bus controllers. NPCM8XX controllers 24-26 are connected on I2C
> + pins in parallel to controllers 8-10.
> + All controllers support both master and slave mode.
> + Each controller can switch between master and slave at run time (i.e. IPMB mode).
> + NPCM7XX I2C controller has two 16 byte HW FIFO for TX and RX and NPCM8XX I2C
> + controller has two 32 byte HW FIFO for TX and RX.
>
> maintainers:
> - Tali Perry <tali.perry1@gmail.com>
>
> properties:
> compatible:
> - const: nuvoton,npcm750-i2c
> + enum:
> + - nuvoton,npcm750-i2c
> + - nuvoton,npcm845-i2c
>
> reg:
> maxItems: 1
> @@ -36,11 +41,16 @@ properties:
> default: 100000
> enum: [100000, 400000, 1000000]
>
> + syscon:
> + $ref: "/schemas/types.yaml#/definitions/phandle"
> + description: The phandle of system manager register node.
> +
> required:
> - compatible
> - reg
> - interrupts
> - clocks
> + - syscon
This breaks ABI of existing DTS. Actually your driver change does it but
here it is explicit...
>
> allOf:
> - $ref: /schemas/i2c/i2c-controller.yaml#
> @@ -57,6 +67,7 @@ examples:
> clock-frequency = <100000>;
> interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
> compatible = "nuvoton,npcm750-i2c";
> + syscon = <&gcr>;
> };
>
> ...
Best regards,
Krzysztof
next prev parent reply other threads:[~2022-02-08 2:59 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-07 6:33 [PATCH v1 0/6] i2c: npcm: Bug fixes timeout, spurious interrupts Tyrone Ting
2022-02-07 6:33 ` [PATCH v1 1/6] dt-bindings: i2c: npcm: support NPCM845 Tyrone Ting
2022-02-07 11:21 ` Jonathan Neuschäfer
2022-02-07 11:27 ` Krzysztof Kozlowski [this message]
2022-02-07 14:22 ` Rob Herring
2022-02-08 8:44 ` warp5tw
2022-02-08 9:03 ` warp5tw
2022-02-11 16:14 ` Rob Herring
2022-02-12 3:19 ` warp5tw
2022-02-07 6:33 ` [PATCH v1 2/6] i2c: npcm: Fix timeout calculation Tyrone Ting
2022-02-07 11:21 ` Krzysztof Kozlowski
2022-02-07 11:27 ` Jonathan Neuschäfer
2022-02-08 9:09 ` warp5tw
2022-02-07 6:33 ` [PATCH v1 3/6] i2c: npcm: Add tx complete counter Tyrone Ting
2022-02-07 6:33 ` [PATCH v1 4/6] i2c: npcm: Handle spurious interrupts Tyrone Ting
2022-02-07 11:40 ` Jonathan Neuschäfer
2022-02-08 9:19 ` warp5tw
2022-02-07 6:33 ` [PATCH v1 5/6] i2c: npcm: Remove own slave addresses 2:10 Tyrone Ting
2022-02-07 6:33 ` [PATCH v1 6/6] i2c: npcm: Support NPCM845 Tyrone Ting
2022-02-07 12:00 ` Jonathan Neuschäfer
2022-02-07 15:26 ` Krzysztof Kozlowski
2022-02-08 7:11 ` tali.perry
2022-02-08 7:14 ` Tali Perry
2022-02-08 7:59 ` Krzysztof Kozlowski
2022-02-08 8:51 ` Tali Perry
2022-02-08 8:56 ` Krzysztof Kozlowski
2022-02-08 9:22 ` Tali Perry
2022-02-08 9:29 ` Krzysztof Kozlowski
2022-02-08 9:31 ` Avi Fishman
2022-02-08 9:39 ` Krzysztof Kozlowski
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