linux-kernel - Re: [PATCH 2/3] rtc: pcf85063: add support for RV8063

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Message-ID: <b42d082e-0568-4d2c-849c-a0b9ab762afd@kernel.org>
Date: Tue, 8 Apr 2025 08:14:36 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Antoni Pokusinski <apokusinski01@...il.com>,
 alexandre.belloni@...tlin.com, krzk+dt@...nel.org, conor+dt@...nel.org,
 robh@...nel.org, alexander.stein@...tq-group.com
Cc: linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
 devicetree@...r.kernel.org
Subject: Re: [PATCH 2/3] rtc: pcf85063: add support for RV8063

On 07/04/2025 21:35, Antoni Pokusinski wrote:
> Microcrystal RV8063 is a real-time clock with SPI interface. Its
> functionality is very similar to the RV8263 rtc.
> 
> Signed-off-by: Antoni Pokusinski <apokusinski01@...il.com>
> ---
>  drivers/rtc/Kconfig        | 21 ++++++-----
>  drivers/rtc/rtc-pcf85063.c | 74 +++++++++++++++++++++++++++++++++++++-
>  2 files changed, 85 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
> index 838bdc138ffe..1b9be96faa13 100644
> --- a/drivers/rtc/Kconfig
> +++ b/drivers/rtc/Kconfig
> @@ -483,15 +483,6 @@ config RTC_DRV_PCF8523
>  	  This driver can also be built as a module. If so, the module
>  	  will be called rtc-pcf8523.
>  
> -config RTC_DRV_PCF85063
> -	tristate "NXP PCF85063"
> -	select REGMAP_I2C
> -	help
> -	  If you say yes here you get support for the PCF85063 RTC chip
> -
> -	  This driver can also be built as a module. If so, the module
> -	  will be called rtc-pcf85063.
> -
>  config RTC_DRV_PCF85363
>  	tristate "NXP PCF85363"
>  	select REGMAP_I2C
> @@ -971,6 +962,18 @@ config RTC_DRV_PCF2127
>  	  This driver can also be built as a module. If so, the module
>  	  will be called rtc-pcf2127.
>  
> +config RTC_DRV_PCF85063

Why? This breaks the order.

> +	tristate "NXP PCF85063"
> +	depends on RTC_I2C_AND_SPI
> +	select REGMAP_I2C if I2C
> +	select REGMAP_SPI if SPI_MASTER
> +	help
> +	  If you say yes here you get support for the PCF85063 and RV8063
> +	  RTC chips.
> +
> +	  This driver can also be built as a module. If so, the module
> +	  will be called rtc-pcf85063.
> +


...

>  module_exit(pcf85063_exit);
> @@ -740,3 +811,4 @@ module_exit(pcf85063_exit);
>  MODULE_AUTHOR("Søren Andersen <san@...etechnology.dk>");
>  MODULE_DESCRIPTION("PCF85063 RTC driver");
>  MODULE_LICENSE("GPL");
> +MODULE_ALIAS("spi:rv8063");

Drop and use proper ID tables.


Best regards,
Krzysztof