linux-kernel - [RESEND PATCH] rtc: sun6i: add support for R329 RTC

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Date:   Sat, 25 Jun 2022 23:27:56 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     Icenowy Zheng <icenowy@...c.io>,
        Samuel Holland <samuel@...lland.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-sunxi@...ts.linux.dev
Subject: [RESEND PATCH] rtc: sun6i: add support for R329 RTC

From: Icenowy Zheng <icenowy@...c.io>

Allwinner R329 has a RTC with a similar time storage with H616 but a
slightly different clock part.

As we have already handled the R329 RTC clocks in the CCU driver, add a
compatible string to RTC driver to allow probing of the RTC.

Signed-off-by: Icenowy Zheng <icenowy@...c.io>
Signed-off-by: Samuel Holland <samuel@...lland.org>
---
Resending this patch separately from Icenowy's R329 series[1] because it
is also needed for D1 (which has R329 as its fallback compatible[2]), so
I would like to get it in to 5.20.

[1]: https://lore.kernel.org/lkml/BYAPR20MB2472C608678F3FAEDA7B7541BCF79@BYAPR20MB2472.namprd20.prod.outlook.com/
[2]: https://lore.kernel.org/lkml/20220203021736.13434-3-samuel@sholland.org/

 drivers/rtc/rtc-sun6i.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index 57540727ce1c..ed5516089e9a 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -875,6 +875,8 @@ static const struct of_device_id sun6i_rtc_dt_ids[] = {
 	{ .compatible = "allwinner,sun50i-h6-rtc" },
 	{ .compatible = "allwinner,sun50i-h616-rtc",
 		.data = (void *)RTC_LINEAR_DAY },
+	{ .compatible = "allwinner,sun50i-r329-rtc",
+		.data = (void *)RTC_LINEAR_DAY },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, sun6i_rtc_dt_ids);
-- 
2.35.1