1 files changed, 76 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6797-img.c b/drivers/clk/mediatek/clk-mt6797-img.c
new file mode 100644
index 000000000..94cc48065
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt6797-img.c
@@ -0,0 +1,76 @@
+/* Copyright (c) 2017 MediaTek Inc.
+ * Author: Kevin Chen <kevin-cw.chen@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+#include <dt-bindings/clock/mt6797-clk.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+static const struct mtk_gate_regs img_cg_regs = {
+	.set_ofs = 0x0004,
+	.clr_ofs = 0x0008,
+	.sta_ofs = 0x0000,
+};
+
+#define GATE_IMG(_id, _name, _parent, _shift) {		\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &img_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_setclr,	\
+	}
+
+static const struct mtk_gate img_clks[] = {
+	GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "mm_sel", 11),
+	GATE_IMG(CLK_IMG_DPE, "img_dpe", "mm_sel", 10),
+	GATE_IMG(CLK_IMG_DIP, "img_dip", "mm_sel", 6),
+	GATE_IMG(CLK_IMG_LARB6, "img_larb6", "mm_sel", 0),
+};
+
+static const struct of_device_id of_match_clk_mt6797_img[] = {
+	{ .compatible = "mediatek,mt6797-imgsys", },
+	{}
+};
+
+static int clk_mt6797_img_probe(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	int r;
+	struct device_node *node = pdev->dev.of_node;
+
+	clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
+
+	mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
+			       clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	return r;
+}
+
+static struct platform_driver clk_mt6797_img_drv = {
+	.probe = clk_mt6797_img_probe,
+	.driver = {
+		.name = "clk-mt6797-img",
+		.of_match_table = of_match_clk_mt6797_img,
+	},
+};
+
+builtin_platform_driver(clk_mt6797_img_drv);