1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt2712-vdec.c b/drivers/clk/mediatek/clk-mt2712-vdec.c
new file mode 100644
index 000000000000..55c64ee8cc91
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt2712-vdec.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Weiyi Lu <weiyi.lu@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 "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt2712-clk.h>
+
+static const struct mtk_gate_regs vdec0_cg_regs = {
+	.set_ofs = 0x0,
+	.clr_ofs = 0x4,
+	.sta_ofs = 0x0,
+};
+
+static const struct mtk_gate_regs vdec1_cg_regs = {
+	.set_ofs = 0x8,
+	.clr_ofs = 0xc,
+	.sta_ofs = 0x8,
+};
+
+#define GATE_VDEC0(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &vdec0_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_setclr_inv,	\
+	}
+
+#define GATE_VDEC1(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &vdec1_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_setclr_inv,	\
+	}
+
+static const struct mtk_gate vdec_clks[] = {
+	/* VDEC0 */
+	GATE_VDEC0(CLK_VDEC_CKEN, "vdec_cken", "vdec_sel", 0),
+	/* VDEC1 */
+	GATE_VDEC1(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "vdec_sel", 0),
+	GATE_VDEC1(CLK_VDEC_IMGRZ_CKEN, "vdec_imgrz_cken", "vdec_sel", 1),
+};
+
+static int clk_mt2712_vdec_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_VDEC_NR_CLK);
+
+	mtk_clk_register_gates(node, vdec_clks, ARRAY_SIZE(vdec_clks),
+			clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+
+	if (r != 0)
+		pr_err("%s(): could not register clock provider: %d\n",
+			__func__, r);
+
+	return r;
+}
+
+static const struct of_device_id of_match_clk_mt2712_vdec[] = {
+	{ .compatible = "mediatek,mt2712-vdecsys", },
+	{}
+};
+
+static struct platform_driver clk_mt2712_vdec_drv = {
+	.probe = clk_mt2712_vdec_probe,
+	.driver = {
+		.name = "clk-mt2712-vdec",
+		.of_match_table = of_match_clk_mt2712_vdec,
+	},
+};
+
+builtin_platform_driver(clk_mt2712_vdec_drv);