1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2018 MediaTek Inc.
4 * Author: Owen Chen <owen.chen@mediatek.com>
5 */
6
7 #include <linux/clk-provider.h>
8 #include <linux/platform_device.h>
9
10 #include "clk-mtk.h"
11 #include "clk-gate.h"
12
13 #include <dt-bindings/clock/mt6765-clk.h>
14
15 static const struct mtk_gate_regs venc_cg_regs = {
16 .set_ofs = 0x4,
17 .clr_ofs = 0x8,
18 .sta_ofs = 0x0,
19 };
20
21 #define GATE_VENC(_id, _name, _parent, _shift) { \
22 .id = _id, \
23 .name = _name, \
24 .parent_name = _parent, \
25 .regs = &venc_cg_regs, \
26 .shift = _shift, \
27 .ops = &mtk_clk_gate_ops_setclr_inv, \
28 }
29
30 static const struct mtk_gate venc_clks[] = {
31 GATE_VENC(CLK_VENC_SET0_LARB, "venc_set0_larb", "mm_ck", 0),
32 GATE_VENC(CLK_VENC_SET1_VENC, "venc_set1_venc", "mm_ck", 4),
33 GATE_VENC(CLK_VENC_SET2_JPGENC, "jpgenc", "mm_ck", 8),
34 GATE_VENC(CLK_VENC_SET3_VDEC, "venc_set3_vdec", "mm_ck", 12),
35 };
36
clk_mt6765_vcodec_probe(struct platform_device * pdev)37 static int clk_mt6765_vcodec_probe(struct platform_device *pdev)
38 {
39 struct clk_onecell_data *clk_data;
40 int r;
41 struct device_node *node = pdev->dev.of_node;
42
43 clk_data = mtk_alloc_clk_data(CLK_VENC_NR_CLK);
44
45 mtk_clk_register_gates(node, venc_clks,
46 ARRAY_SIZE(venc_clks), clk_data);
47
48 r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
49
50 if (r)
51 pr_err("%s(): could not register clock provider: %d\n",
52 __func__, r);
53
54 return r;
55 }
56
57 static const struct of_device_id of_match_clk_mt6765_vcodec[] = {
58 { .compatible = "mediatek,mt6765-vcodecsys", },
59 {}
60 };
61
62 static struct platform_driver clk_mt6765_vcodec_drv = {
63 .probe = clk_mt6765_vcodec_probe,
64 .driver = {
65 .name = "clk-mt6765-vcodec",
66 .of_match_table = of_match_clk_mt6765_vcodec,
67 },
68 };
69
70 builtin_platform_driver(clk_mt6765_vcodec_drv);
71