linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Andre Przywara <andre.przywara@arm.com>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Rob Herring <robh@kernel.org>, Icenowy Zheng <icenowy@aosc.io>,
	Samuel Holland <samuel@sholland.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@googlegroups.com, linux-sunxi@lists.linux.dev,
	linux-kernel@vger.kernel.org, Ondrej Jirman <megous@megous.com>,
	Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	linux-rtc@vger.kernel.org
Subject: [PATCH v9 07/11] rtc: sun6i: Add Allwinner H616 support
Date: Mon,  2 Aug 2021 01:39:48 +0100	[thread overview]
Message-ID: <20210802003952.19942-8-andre.przywara@arm.com> (raw)
In-Reply-To: <20210802003952.19942-1-andre.przywara@arm.com>

The H616 RTC changes its day storage to the newly introduced linear day
scheme, so pair the new compatible string with this feature flag.
The clock part is missing an external 32768 Hz oscillator input pin,
for future expansion we must thus ignore any provided clock for now.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 drivers/rtc/rtc-sun6i.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index fe1bee3a4ec6..77db4f0a042c 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -392,6 +392,23 @@ 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);
 
+static const struct sun6i_rtc_clk_data sun50i_h616_rtc_data = {
+	.rc_osc_rate = 16000000,
+	.fixed_prescaler = 32,
+	.has_prescaler = 1,
+	.has_out_clk = 1,
+	.export_iosc = 1,
+	.no_ext_losc = 1,
+};
+
+static void __init sun50i_h616_rtc_clk_init(struct device_node *node)
+{
+	sun6i_rtc_clk_init(node, &sun50i_h616_rtc_data);
+}
+
+CLK_OF_DECLARE_DRIVER(sun50i_h616_rtc_clk, "allwinner,sun50i-h616-rtc",
+		      sun50i_h616_rtc_clk_init);
+
 /*
  * The R40 user manual is self-conflicting on whether the prescaler is
  * fixed or configurable. The clock diagram shows it as fixed, but there
@@ -797,6 +814,8 @@ 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);
-- 
2.17.6


  parent reply	other threads:[~2021-08-02  0:41 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02  0:39 [PATCH v9 00/11] arm64: sunxi: Initial Allwinner H616 SoC support Andre Przywara
2021-08-02  0:39 ` [PATCH v9 01/11] dt-bindings: mfd: axp20x: Add AXP305 compatible (plus optional IRQ) Andre Przywara
2021-08-02  7:40   ` Lee Jones
2021-08-02  0:39 ` [PATCH v9 02/11] dt-bindings: rtc: sun6i: Add H616 compatible string Andre Przywara
2021-08-18  8:15   ` Maxime Ripard
2021-08-02  0:39 ` [PATCH v9 03/11] rtc: sun6i: Fix time overflow handling Andre Przywara
2021-08-02  0:39 ` [PATCH v9 04/11] rtc: sun6i: Add support for linear day storage Andre Przywara
2021-08-02  0:39 ` [PATCH v9 05/11] rtc: sun6i: Add support for broken-down alarm registers Andre Przywara
2021-08-02  0:39 ` [PATCH v9 06/11] rtc: sun6i: Add support for RTCs without external LOSCs Andre Przywara
2021-08-02  0:39 ` Andre Przywara [this message]
2021-08-02  0:39 ` [PATCH v9 08/11] arm64: dts: allwinner: Add Allwinner H616 .dtsi file Andre Przywara
2021-09-11  4:13   ` Samuel Holland
2021-08-02  0:39 ` [PATCH v9 09/11] dt-bindings: arm: sunxi: Add two H616 board compatible strings Andre Przywara
2021-08-02  0:39 ` [PATCH v9 10/11] arm64: dts: allwinner: h616: Add OrangePi Zero 2 board support Andre Przywara
2021-08-02  0:39 ` [PATCH v9 11/11] arm64: dts: allwinner: h616: Add X96 Mate TV box support Andre Przywara

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210802003952.19942-8-andre.przywara@arm.com \
    --to=andre.przywara@arm.com \
    --cc=a.zummo@towertech.it \
    --cc=alexandre.belloni@bootlin.com \
    --cc=icenowy@aosc.io \
    --cc=jernej.skrabec@gmail.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rtc@vger.kernel.org \
    --cc=linux-sunxi@googlegroups.com \
    --cc=linux-sunxi@lists.linux.dev \
    --cc=megous@megous.com \
    --cc=mripard@kernel.org \
    --cc=robh@kernel.org \
    --cc=samuel@sholland.org \
    --cc=wens@csie.org \
    --subject='Re: [PATCH v9 07/11] rtc: sun6i: Add Allwinner H616 support' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).