1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/clk/meson/meson-eeclk.c b/drivers/clk/meson/meson-eeclk.c
new file mode 100644
index 000000000000..37a34c9c3885
--- /dev/null
+++ b/drivers/clk/meson/meson-eeclk.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+#include "clk-input.h"
+#include "clk-regmap.h"
+#include "meson-eeclk.h"
+
+int meson_eeclkc_probe(struct platform_device *pdev)
+{
+	const struct meson_eeclkc_data *data;
+	struct device *dev = &pdev->dev;
+	struct clk_hw *input;
+	struct regmap *map;
+	int ret, i;
+
+	data = of_device_get_match_data(dev);
+	if (!data)
+		return -EINVAL;
+
+	/* Get the hhi system controller node */
+	map = syscon_node_to_regmap(of_get_parent(dev->of_node));
+	if (IS_ERR(map)) {
+		dev_err(dev,
+			"failed to get HHI regmap\n");
+		return PTR_ERR(map);
+	}
+
+	input = meson_clk_hw_register_input(dev, "xtal", IN_PREFIX "xtal", 0);
+	if (IS_ERR(input)) {
+		ret = PTR_ERR(input);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "failed to get input clock");
+		return ret;
+	}
+
+	/* Populate regmap for the regmap backed clocks */
+	for (i = 0; i < data->regmap_clk_num; i++)
+		data->regmap_clks[i]->map = map;
+
+	for (i = 0; i < data->hw_onecell_data->num; i++) {
+		/* array might be sparse */
+		if (!data->hw_onecell_data->hws[i])
+			continue;
+
+		ret = devm_clk_hw_register(dev, data->hw_onecell_data->hws[i]);
+		if (ret) {
+			dev_err(dev, "Clock registration failed\n");
+			return ret;
+		}
+	}
+
+	return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
+					   data->hw_onecell_data);
+}