From: Krzysztof Kozlowski <krzk@kernel.org>
To: Krishna Yarlagadda <kyarlagadda@nvidia.com>,
linux-tegra@vger.kernel.org, devicetree@vger.kernel.org,
linux-doc@vger.kernel.org, linux-i2c@vger.kernel.org,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: thierry.reding@gmail.com, jonathanh@nvidia.com, robh@kernel.org,
krzk+dt@kernel.org, conor+dt@kernel.org, corbet@lwn.net,
andi.shyti@kernel.org, wsa+renesas@sang-engineering.com,
ulf.hansson@linaro.org, adrian.hunter@intel.com,
digetx@gmail.com, ldewangan@nvidia.com, mkumard@nvidia.com
Subject: Re: [RFC PATCH 03/11] soc: tegra: config settings binding document
Date: Tue, 7 May 2024 08:32:39 +0200 [thread overview]
Message-ID: <29e26d22-04b3-47ee-ba70-9f4eb77326f7@kernel.org> (raw)
In-Reply-To: <20240506225139.57647-4-kyarlagadda@nvidia.com>
On 07/05/2024 00:51, Krishna Yarlagadda wrote:
> Config framework parses device tree and provides a list of register
> settings with mask per mode to be applied by the controller.
>
> Add binding document for config settings framework. Config settings
> are defined as a property per field and have different modes per device.
Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching. For bindings, the preferred subjects are
explained here:
https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters
>
> Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
> ---
> .../misc/nvidia,tegra-config-settings.yaml | 50 +++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 51 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/misc/nvidia,tegra-config-settings.yaml
>
> diff --git a/Documentation/devicetree/bindings/misc/nvidia,tegra-config-settings.yaml b/Documentation/devicetree/bindings/misc/nvidia,tegra-config-settings.yaml
> new file mode 100644
> index 000000000000..e379cbd5b597
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/nvidia,tegra-config-settings.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/misc/nvidia,tegra-config-settings.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Config properties for a device.
No full stop, that's a title.
> +
> +description:
> + Config setting is the configuration based on chip/board/system
> + characterization on interface/controller settings. This is needed for
> + - making the controller internal configuration to better perform
> + - making the interface to work proper by setting drive strength, slew
> + rates etc
> + - making the low power leakage.
> + There are two types of recommended configuration settings
> + - Controller register specific for internal operation of controller.
> + - Pad control/Pinmux/pincontrol registers for interfacing.
> + These configurations can further be categorized as static and dynamic.
> + - Static config does not change until a controller is reset.
> + - Dynamic config changes based on mode or condition, controller is
> + operating in.
> +
> +maintainers:
> + - Thierry Reding <thierry.reding@gmail.com>
> +
> +patternProperties:
> + "^[a-z0-9_]*$":
> + description:
> + Config name to be applied on controller.
> + type: object
Nope, this means nothing. Sorry, describe hardware, do not create some
fake nodes.
> +
> +additionalProperties: true
> +
> +examples:
> + - |
> + config {
Messed indentation.
> + common {
> + nvidia,i2c-hs-sclk-high-period = <0x03>;
> + nvidia,i2c-hs-sclk-low-period = <0x08>;
> + };
Best regards,
Krzysztof
next prev parent reply other threads:[~2024-05-07 6:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-06 22:51 [RFC PATCH 00/11] Introduce Tegra register config settings Krishna Yarlagadda
2024-05-06 22:51 ` [RFC PATCH 01/11] Documentation: Introduce config settings framework Krishna Yarlagadda
2024-05-06 22:51 ` [RFC PATCH 02/11] soc: tegra: Add config setting framework Krishna Yarlagadda
2024-05-06 22:51 ` [RFC PATCH 03/11] soc: tegra: config settings binding document Krishna Yarlagadda
2024-05-07 6:32 ` Krzysztof Kozlowski [this message]
2024-05-24 8:01 ` Thierry Reding
2024-05-06 22:51 ` [RFC PATCH 04/11] i2c: dt-bindings: configuration settings Krishna Yarlagadda
2024-05-07 6:34 ` Krzysztof Kozlowski
2024-05-07 12:35 ` Rob Herring (Arm)
2024-05-06 22:51 ` [RFC PATCH 05/11] i2c: core: Avoid config node enumeration Krishna Yarlagadda
2024-05-07 6:35 ` Krzysztof Kozlowski
2024-05-06 22:51 ` [RFC PATCH 06/11] i2c: tegra: split clock initialization code Krishna Yarlagadda
2024-05-06 22:51 ` [RFC PATCH 07/11] i2c: tegra: config settings for interface timings Krishna Yarlagadda
2024-05-06 22:51 ` [RFC PATCH 08/11] arm64: tegra: I2C " Krishna Yarlagadda
2024-05-06 22:51 ` [RFC PATCH 09/11] sdhci: dt-bindings: configuration settings Krishna Yarlagadda
2024-05-07 6:37 ` Krzysztof Kozlowski
2024-05-06 22:51 ` [RFC PATCH 10/11] mmc: host: tegra: config settings for timing Krishna Yarlagadda
2024-05-06 22:51 ` [RFC PATCH 11/11] arm64: tegra: SDHCI timing settings Krishna Yarlagadda
2024-05-07 6:38 ` [RFC PATCH 00/11] Introduce Tegra register config settings Krzysztof Kozlowski
2024-05-24 7:52 ` Thierry Reding
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