linux-kernel - [PATCH v2 9/9] [DO NOT MERGE] clk: sunxi-ng: sun6i-rtc: Add support for T5

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Message-Id: <20210928080335.36706-10-samuel@sholland.org>
Date:   Tue, 28 Sep 2021 03:03:35 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v2 9/9] [DO NOT MERGE] clk: sunxi-ng: sun6i-rtc: Add support for T5

The T5 RTC is similar to the H616 RTC (no rtc-32k mux, pll-32k as the
second fanout input), except that it adds the ext-osc32k input.

Signed-off-by: Samuel Holland <samuel@...lland.org>
---
 drivers/clk/sunxi-ng/ccu-sun6i-rtc.c | 45 ++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
index f742f6569f6c..88946c990b61 100644
--- a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
+++ b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
@@ -240,6 +240,15 @@ static SUNXI_CCU_GATE_HW(osc32k_fanout_gate_clk, "osc32k-fanout",
 static SUNXI_CCU_M_FW_WITH_GATE(rtc_spi_clk, "rtc-spi", "ahb",
 				0x310, 0, 5, BIT(31), 0);
 
+static struct ccu_common *sun8i_t5_rtc_ccu_clks[] = {
+	&iosc_clk,
+	&iosc_32k_clk,
+	&ext_osc32k_gate_clk.common,
+	&osc32k_clk.common,
+	&osc24M_32k_clk.common,
+	&osc32k_fanout_clk.common,
+};
+
 static struct ccu_common *sun50i_h6_rtc_ccu_clks[] = {
 	&iosc_clk,
 	&iosc_32k_clk,
@@ -269,6 +278,21 @@ static struct ccu_common *sun50i_r329_rtc_ccu_clks[] = {
 	&rtc_spi_clk.common,
 };
 
+static struct clk_hw_onecell_data sun8i_t5_rtc_ccu_hw_clks = {
+	.num = CLK_NUMBER,
+	.hws = {
+		[CLK_OSC32K]		= &osc32k_clk.common.hw,
+		[CLK_OSC32K_FANOUT]	= &osc32k_fanout_clk.common.hw,
+		[CLK_IOSC]		= &iosc_clk.hw,
+
+		[CLK_IOSC_32K]		= &iosc_32k_clk.hw,
+		[CLK_EXT_OSC32K_GATE]	= &ext_osc32k_gate_clk.common.hw,
+		[CLK_OSC24M_32K]	= &osc24M_32k_clk.common.hw,
+		[CLK_RTC_32K]		= &rtc_32k_fixed_clk.hw,
+		[CLK_RTC_SPI]		= NULL,
+	},
+};
+
 static struct clk_hw_onecell_data sun50i_h6_rtc_ccu_hw_clks = {
 	.num = CLK_NUMBER,
 	.hws = {
@@ -314,6 +338,13 @@ static struct clk_hw_onecell_data sun50i_r329_rtc_ccu_hw_clks = {
 	},
 };
 
+static const struct sunxi_ccu_desc sun8i_t5_rtc_ccu_desc = {
+	.ccu_clks	= sun8i_t5_rtc_ccu_clks,
+	.num_ccu_clks	= ARRAY_SIZE(sun8i_t5_rtc_ccu_clks),
+
+	.hw_clks	= &sun8i_t5_rtc_ccu_hw_clks,
+};
+
 static const struct sunxi_ccu_desc sun50i_h6_rtc_ccu_desc = {
 	.ccu_clks	= sun50i_h6_rtc_ccu_clks,
 	.num_ccu_clks	= ARRAY_SIZE(sun50i_h6_rtc_ccu_clks),
@@ -335,6 +366,11 @@ static const struct sunxi_ccu_desc sun50i_r329_rtc_ccu_desc = {
 	.hw_clks	= &sun50i_r329_rtc_ccu_hw_clks,
 };
 
+static void sun8i_t5_rtc_ccu_setup(void)
+{
+	have_iosc_calib = 1;
+}
+
 static void sun50i_h6_rtc_ccu_setup(void)
 {
 	have_iosc_calib = 1;
@@ -357,6 +393,11 @@ static void sun50i_r329_rtc_ccu_setup(void)
 	};
 }
 
+static const struct sun6i_rtc_match_data sun8i_t5_rtc_ccu_data = {
+	.desc	= &sun8i_t5_rtc_ccu_desc,
+	.setup	= sun8i_t5_rtc_ccu_setup,
+};
+
 static const struct sun6i_rtc_match_data sun50i_h6_rtc_ccu_data = {
 	.desc	= &sun50i_h6_rtc_ccu_desc,
 	.setup	= sun50i_h6_rtc_ccu_setup,
@@ -373,6 +414,10 @@ static const struct sun6i_rtc_match_data sun50i_r329_rtc_ccu_data = {
 };
 
 static const struct of_device_id sun6i_rtc_ccu_match[] = {
+	{
+		.compatible	= "allwinner,sun8i-t5-rtc",
+		.data		= &sun8i_t5_rtc_ccu_data,
+	},
 	{
 		.compatible	= "allwinner,sun50i-h6-rtc",
 		.data		= &sun50i_h6_rtc_ccu_data,
-- 
2.31.1