linux-kernel - [PATCH v2 02/10] clk: at91: sckc: add support for SAM9X60

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Message-Id: <20190402124016.20558-3-alexandre.belloni@bootlin.com>
Date:   Tue,  2 Apr 2019 14:40:08 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Michael Turquette <mturquette@...libre.com>,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 02/10] clk: at91: sckc: add support for SAM9X60

From: Claudiu Beznea <claudiu.beznea@...rochip.com>

Add support for SAM9X60.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
 drivers/clk/at91/sckc.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
index b7163d3a2269..b3075c51d260 100644
--- a/drivers/clk/at91/sckc.c
+++ b/drivers/clk/at91/sckc.c
@@ -459,6 +459,36 @@ static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
 CLK_OF_DECLARE(at91sam9x5_clk_sckc, "atmel,at91sam9x5-sckc",
 	       of_at91sam9x5_sckc_setup);
 
+static const struct clk_slow_offsets at91sam9x60_offsets = {
+	.cr_rcen = AT91_SCKC_OFFSET_INVALID,
+	.cr_osc32en = 1,
+	.cr_osc32byp = 2,
+	.cr_oscsel = 24,
+};
+
+static void __init of_at91sam9x60_sckc_setup(struct device_node *np)
+{
+	struct device_node *childnp;
+	void (*clk_setup)(struct device_node *np, void __iomem *io,
+			  const struct clk_slow_offsets *offsets);
+	const struct of_device_id *clk_id;
+	void __iomem *regbase = of_iomap(np, 0);
+
+	if (!regbase)
+		return;
+
+	for_each_child_of_node(np, childnp) {
+		clk_id = of_match_node(sckc_clk_ids, childnp);
+		if (!clk_id)
+			continue;
+		clk_setup = clk_id->data;
+		clk_setup(childnp, regbase, &at91sam9x60_offsets);
+	}
+}
+
+CLK_OF_DECLARE(at91sam9x60_clk_sckc, "microchip,sam9x60-sckc",
+	       of_at91sam9x60_sckc_setup);
+
 static int clk_sama5d4_slow_osc_prepare(struct clk_hw *hw)
 {
 	struct clk_sama5d4_slow_osc *osc = to_clk_sama5d4_slow_osc(hw);
-- 
2.20.1