linux-kernel - Re: [PATCH v2 1/4] dt-bindings: Add headers for Tegra234 I2C

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Message-ID: <a937a784-ad37-0c70-33ae-89d9907b1f68@gmail.com>
Date:   Mon, 24 Jan 2022 00:07:17 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Akhil R <akhilrajeev@...dia.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        Mikko Perttunen <mperttunen@...dia.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>
Subject: Re: [PATCH v2 1/4] dt-bindings: Add headers for Tegra234 I2C

23.01.2022 19:56, Akhil R пишет:
>>> Add dt-bindings header files for I2C controllers for Tegra234
>>>
>>> Signed-off-by: Akhil R <akhilrajeev@...dia.com>
>>> ---
>>>  include/dt-bindings/clock/tegra234-clock.h | 19 +++++++++++++++++++
>>> include/dt-bindings/reset/tegra234-reset.h |  8 ++++++++
>>>  2 files changed, 27 insertions(+)
>>>
>>> diff --git a/include/dt-bindings/clock/tegra234-clock.h
>>> b/include/dt-bindings/clock/tegra234-clock.h
>>> index 8d7e66e..5d05c19 100644
>>> --- a/include/dt-bindings/clock/tegra234-clock.h
>>> +++ b/include/dt-bindings/clock/tegra234-clock.h
>>> @@ -30,5 +30,24 @@
>>>  #define TEGRA234_CLK_PLLC4                   237U
>>>  /** @brief 32K input clock provided by PMIC */
>>>  #define TEGRA234_CLK_CLK_32K                 289U
>>> +/** @brief output of mux controlled by
>> CLK_RST_CONTROLLER_CLK_SOURCE_I2C1 */
>>> +#define TEGRA234_CLK_I2C1                    48U
>>> +/** @brief output of mux controlled by
>> CLK_RST_CONTROLLER_CLK_SOURCE_I2C2 */
>>> +#define TEGRA234_CLK_I2C2                    49U
>>> +/** @brief output of mux controlled by
>> CLK_RST_CONTROLLER_CLK_SOURCE_I2C3 */
>>> +#define TEGRA234_CLK_I2C3                    50U
>>> +/** output of mux controlled by CLK_RST_CONTROLLER_CLK_SOURCE_I2C4
>> */
>>> +#define TEGRA234_CLK_I2C4                    51U
>>> +/** @brief output of mux controlled by
>> CLK_RST_CONTROLLER_CLK_SOURCE_I2C6 */
>>> +#define TEGRA234_CLK_I2C6                    52U
>>> +/** @brief output of mux controlled by
>> CLK_RST_CONTROLLER_CLK_SOURCE_I2C7 */
>>> +#define TEGRA234_CLK_I2C7                    53U
>>> +/** @brief output of mux controlled by
>> CLK_RST_CONTROLLER_CLK_SOURCE_I2C8 */
>>> +#define TEGRA234_CLK_I2C8                    54U
>>> +/** @brief output of mux controlled by
>> CLK_RST_CONTROLLER_CLK_SOURCE_I2C9 */
>>> +#define TEGRA234_CLK_I2C9                    55U
>>> +
>>> +/** @brief PLLP clk output */
>>> +#define TEGRA234_CLK_PLLP_OUT0                       102U
>>>
>>>  #endif
>>> diff --git a/include/dt-bindings/reset/tegra234-reset.h
>>> b/include/dt-bindings/reset/tegra234-reset.h
>>> index 50e13bc..e07e898 100644
>>> --- a/include/dt-bindings/reset/tegra234-reset.h
>>> +++ b/include/dt-bindings/reset/tegra234-reset.h
>>> @@ -12,6 +12,14 @@
>>>   */
>>>  #define TEGRA234_RESET_SDMMC4                        85U
>>>  #define TEGRA234_RESET_UARTA                 100U
>>> +#define TEGRA234_RESET_I2C1                  24U
>>> +#define TEGRA234_RESET_I2C2                  29U
>>> +#define TEGRA234_RESET_I2C3                  30U
>>> +#define TEGRA234_RESET_I2C4                  31U
>>> +#define TEGRA234_RESET_I2C6                  32U
>>> +#define TEGRA234_RESET_I2C7                  33U
>>> +#define TEGRA234_RESET_I2C8                  34U
>>> +#define TEGRA234_RESET_I2C9                  35U
>>
>> Why ID order isn't maintained?
> Do you mean RESET_UART4, SDMMC4 etc should be
> below RESET_I2C*?

Yes, please see T186/194 headers for the example and do the same for
T234. Always try to use existing examples in general to maintain
consistency.