linux-kernel - Re: [PATCH v6 05/17] rtc: sun6i: Add Allwinner H616 support

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Message-ID: <10265315.EKgO2cQaHd@kista>
Date:   Sat, 22 May 2021 09:29:26 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Andre Przywara <andre.przywara@....com>
Cc:     Rob Herring <robh@...nel.org>, Icenowy Zheng <icenowy@...c.io>,
        Samuel Holland <samuel@...lland.org>,
        Ondrej Jirman <megous@...ous.com>,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        linux-rtc@...r.kernel.org
Subject: Re: [PATCH v6 05/17] rtc: sun6i: Add Allwinner H616 support

Hi Andre!

Dne sreda, 19. maj 2021 ob 12:41:40 CEST je Andre Przywara napisal(a):
> The H616 RTC changes its day storage to the newly introduced linear day
> scheme, so pair the new compatible string with this feature flag.
> So far the clock parts seem to be the same as the H6, so combine the
> compatible string with the existing H6 support bits.

There is one more difference - H616 alarm value is now broken down to days, 
hours, minutes and seconds.

Best regards,
Jernej

> 
> Signed-off-by: Andre Przywara <andre.przywara@....com>
> ---
>  drivers/rtc/rtc-sun6i.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
> index 0228e9dfd969..ec0cd0ee539a 100644
> --- a/drivers/rtc/rtc-sun6i.c
> +++ b/drivers/rtc/rtc-sun6i.c
> @@ -382,6 +382,8 @@ static void __init sun50i_h6_rtc_clk_init(struct 
device_node *node)
>  }
>  CLK_OF_DECLARE_DRIVER(sun50i_h6_rtc_clk, "allwinner,sun50i-h6-rtc",
>  		      sun50i_h6_rtc_clk_init);
> +CLK_OF_DECLARE_DRIVER(sun50i_h616_rtc_clk, "allwinner,sun50i-h616-rtc",
> +		      sun50i_h6_rtc_clk_init);
>  
>  /*
>   * The R40 user manual is self-conflicting on whether the prescaler is
> @@ -773,6 +775,8 @@ static const struct of_device_id sun6i_rtc_dt_ids[] = {
>  	{ .compatible = "allwinner,sun8i-v3-rtc" },
>  	{ .compatible = "allwinner,sun50i-h5-rtc" },
>  	{ .compatible = "allwinner,sun50i-h6-rtc" },
> +	{ .compatible = "allwinner,sun50i-h616-rtc",
> +		.data = (void *)RTC_LINEAR_DAY },
>  	{ /* sentinel */ },
>  };
>  MODULE_DEVICE_TABLE(of, sun6i_rtc_dt_ids);
> -- 
> 2.17.5
> 
>