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From: Samuel Holland <samuel@sholland.org>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Samuel Holland <samuel@sholland.org>,
	Maxime Ripard <mripard@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org,
	linux-sunxi@lists.linux.dev
Subject: [PATCH] rtc: sun6i: Always export the internal oscillator
Date: Thu, 29 Dec 2022 15:53:19 -0600	[thread overview]
Message-ID: <20221229215319.14145-1-samuel@sholland.org> (raw)

On all variants of the hardware, the internal oscillator is one possible
parent for the AR100 clock. It needs to be exported so we can model that
relationship correctly in the devicetree.

Fixes: c56afc1844d6 ("rtc: sun6i: Expose internal oscillator through device tree")
Signed-off-by: Samuel Holland <samuel@sholland.org>
---
This patch should be applied before [1] so this patch can be backported.
[1]: https://lore.kernel.org/linux-rtc/20221229184011.62925-2-samuel@sholland.org/

 drivers/rtc/rtc-sun6i.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index ed5516089e9a..7038f47d77ff 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -136,7 +136,6 @@ struct sun6i_rtc_clk_data {
 	unsigned int fixed_prescaler : 16;
 	unsigned int has_prescaler : 1;
 	unsigned int has_out_clk : 1;
-	unsigned int export_iosc : 1;
 	unsigned int has_losc_en : 1;
 	unsigned int has_auto_swt : 1;
 };
@@ -271,10 +270,8 @@ static void __init sun6i_rtc_clk_init(struct device_node *node,
 	/* Yes, I know, this is ugly. */
 	sun6i_rtc = rtc;
 
-	/* Only read IOSC name from device tree if it is exported */
-	if (rtc->data->export_iosc)
-		of_property_read_string_index(node, "clock-output-names", 2,
-					      &iosc_name);
+	of_property_read_string_index(node, "clock-output-names", 2,
+				      &iosc_name);
 
 	rtc->int_osc = clk_hw_register_fixed_rate_with_accuracy(NULL,
 								iosc_name,
@@ -315,13 +312,10 @@ static void __init sun6i_rtc_clk_init(struct device_node *node,
 		goto err_register;
 	}
 
-	clk_data->num = 2;
+	clk_data->num = 3;
 	clk_data->hws[0] = &rtc->hw;
 	clk_data->hws[1] = __clk_get_hw(rtc->ext_losc);
-	if (rtc->data->export_iosc) {
-		clk_data->hws[2] = rtc->int_osc;
-		clk_data->num = 3;
-	}
+	clk_data->hws[2] = rtc->int_osc;
 	of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
 	return;
 
@@ -361,7 +355,6 @@ static const struct sun6i_rtc_clk_data sun8i_h3_rtc_data = {
 	.fixed_prescaler = 32,
 	.has_prescaler = 1,
 	.has_out_clk = 1,
-	.export_iosc = 1,
 };
 
 static void __init sun8i_h3_rtc_clk_init(struct device_node *node)
@@ -379,7 +372,6 @@ static const struct sun6i_rtc_clk_data sun50i_h6_rtc_data = {
 	.fixed_prescaler = 32,
 	.has_prescaler = 1,
 	.has_out_clk = 1,
-	.export_iosc = 1,
 	.has_losc_en = 1,
 	.has_auto_swt = 1,
 };
-- 
2.37.4


WARNING: multiple messages have this Message-ID (diff)
From: Samuel Holland <samuel@sholland.org>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Samuel Holland <samuel@sholland.org>,
	Maxime Ripard <mripard@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org,
	linux-sunxi@lists.linux.dev
Subject: [PATCH] rtc: sun6i: Always export the internal oscillator
Date: Thu, 29 Dec 2022 15:53:19 -0600	[thread overview]
Message-ID: <20221229215319.14145-1-samuel@sholland.org> (raw)

On all variants of the hardware, the internal oscillator is one possible
parent for the AR100 clock. It needs to be exported so we can model that
relationship correctly in the devicetree.

Fixes: c56afc1844d6 ("rtc: sun6i: Expose internal oscillator through device tree")
Signed-off-by: Samuel Holland <samuel@sholland.org>
---
This patch should be applied before [1] so this patch can be backported.
[1]: https://lore.kernel.org/linux-rtc/20221229184011.62925-2-samuel@sholland.org/

 drivers/rtc/rtc-sun6i.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index ed5516089e9a..7038f47d77ff 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -136,7 +136,6 @@ struct sun6i_rtc_clk_data {
 	unsigned int fixed_prescaler : 16;
 	unsigned int has_prescaler : 1;
 	unsigned int has_out_clk : 1;
-	unsigned int export_iosc : 1;
 	unsigned int has_losc_en : 1;
 	unsigned int has_auto_swt : 1;
 };
@@ -271,10 +270,8 @@ static void __init sun6i_rtc_clk_init(struct device_node *node,
 	/* Yes, I know, this is ugly. */
 	sun6i_rtc = rtc;
 
-	/* Only read IOSC name from device tree if it is exported */
-	if (rtc->data->export_iosc)
-		of_property_read_string_index(node, "clock-output-names", 2,
-					      &iosc_name);
+	of_property_read_string_index(node, "clock-output-names", 2,
+				      &iosc_name);
 
 	rtc->int_osc = clk_hw_register_fixed_rate_with_accuracy(NULL,
 								iosc_name,
@@ -315,13 +312,10 @@ static void __init sun6i_rtc_clk_init(struct device_node *node,
 		goto err_register;
 	}
 
-	clk_data->num = 2;
+	clk_data->num = 3;
 	clk_data->hws[0] = &rtc->hw;
 	clk_data->hws[1] = __clk_get_hw(rtc->ext_losc);
-	if (rtc->data->export_iosc) {
-		clk_data->hws[2] = rtc->int_osc;
-		clk_data->num = 3;
-	}
+	clk_data->hws[2] = rtc->int_osc;
 	of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
 	return;
 
@@ -361,7 +355,6 @@ static const struct sun6i_rtc_clk_data sun8i_h3_rtc_data = {
 	.fixed_prescaler = 32,
 	.has_prescaler = 1,
 	.has_out_clk = 1,
-	.export_iosc = 1,
 };
 
 static void __init sun8i_h3_rtc_clk_init(struct device_node *node)
@@ -379,7 +372,6 @@ static const struct sun6i_rtc_clk_data sun50i_h6_rtc_data = {
 	.fixed_prescaler = 32,
 	.has_prescaler = 1,
 	.has_out_clk = 1,
-	.export_iosc = 1,
 	.has_losc_en = 1,
 	.has_auto_swt = 1,
 };
-- 
2.37.4


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             reply	other threads:[~2022-12-29 21:53 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-29 21:53 Samuel Holland [this message]
2022-12-29 21:53 ` [PATCH] rtc: sun6i: Always export the internal oscillator Samuel Holland
2022-12-29 23:17 ` Andre Przywara
2022-12-29 23:17   ` Andre Przywara
2022-12-29 23:42   ` Samuel Holland
2022-12-29 23:42     ` Samuel Holland
2023-01-08 19:43 ` Jernej Škrabec
2023-01-08 19:43   ` Jernej Škrabec
2023-01-23 23:47 ` Alexandre Belloni
2023-01-23 23:47   ` Alexandre Belloni

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