1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6735-vdecsys.c b/drivers/clk/mediatek/clk-mt6735-vdecsys.c
new file mode 100644
index 000000000000..8817085fc1db
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt6735-vdecsys.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 Yassine Oudjana <y.oudjana@protonmail.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+#include <dt-bindings/clock/mediatek,mt6735-vdecsys.h>
+#include <dt-bindings/reset/mediatek,mt6735-vdecsys.h>
+
+#define VDEC_CKEN_SET			0x00
+#define VDEC_CKEN_CLR			0x04
+#define SMI_LARB1_CKEN_SET		0x08
+#define SMI_LARB1_CKEN_CLR		0x0c
+#define VDEC_RESETB_CON			0x10
+#define SMI_LARB1_RESETB_CON		0x14
+
+#define RST_NR_PER_BANK			32
+
+static struct mtk_gate_regs vdec_cg_regs = {
+	.set_ofs = VDEC_CKEN_SET,
+	.clr_ofs = VDEC_CKEN_CLR,
+	.sta_ofs = VDEC_CKEN_SET,
+};
+
+static struct mtk_gate_regs smi_larb1_cg_regs = {
+	.set_ofs = SMI_LARB1_CKEN_SET,
+	.clr_ofs = SMI_LARB1_CKEN_CLR,
+	.sta_ofs = SMI_LARB1_CKEN_SET,
+};
+
+static const struct mtk_gate vdecsys_gates[] = {
+	GATE_MTK(CLK_VDEC_VDEC, "vdec", "vdec_sel", &vdec_cg_regs, 0, &mtk_clk_gate_ops_setclr_inv),
+	GATE_MTK(CLK_VDEC_SMI_LARB1, "smi_larb1", "vdec_sel", &smi_larb1_cg_regs, 0, &mtk_clk_gate_ops_setclr_inv),
+};
+
+static u16 vdecsys_rst_bank_ofs[] = { VDEC_RESETB_CON, SMI_LARB1_RESETB_CON };
+
+static u16 vdecsys_rst_idx_map[] = {
+	[MT6735_VDEC_RST0_VDEC]		= 0 * RST_NR_PER_BANK + 0,
+	[MT6735_VDEC_RST1_SMI_LARB1]	= 1 * RST_NR_PER_BANK + 0,
+};
+
+static const struct mtk_clk_rst_desc vdecsys_resets = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = vdecsys_rst_bank_ofs,
+	.rst_bank_nr = ARRAY_SIZE(vdecsys_rst_bank_ofs),
+	.rst_idx_map = vdecsys_rst_idx_map,
+	.rst_idx_map_nr = ARRAY_SIZE(vdecsys_rst_idx_map)
+};
+
+static const struct mtk_clk_desc vdecsys_clks = {
+	.clks = vdecsys_gates,
+	.num_clks = ARRAY_SIZE(vdecsys_gates),
+	.rst_desc = &vdecsys_resets
+};
+
+static const struct of_device_id of_match_mt6735_vdecsys[] = {
+	{ .compatible = "mediatek,mt6735-vdecsys", .data = &vdecsys_clks },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver clk_mt6735_vdecsys = {
+	.probe = mtk_clk_simple_probe,
+	.remove = mtk_clk_simple_remove,
+	.driver = {
+		.name = "clk-mt6735-vdecsys",
+		.of_match_table = of_match_mt6735_vdecsys,
+	},
+};
+module_platform_driver(clk_mt6735_vdecsys);
+
+MODULE_AUTHOR("Yassine Oudjana <y.oudjana@protonmail.com>");
+MODULE_DESCRIPTION("MediaTek MT6735 vdecsys clock and reset driver");
+MODULE_LICENSE("GPL");