1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2019 MediaTek Inc.
4 * Author: Wendell Lin <wendell.lin@mediatek.com>
5 */
6
7 #include <linux/module.h>
8 #include <linux/clk-provider.h>
9 #include <linux/platform_device.h>
10
11 #include "clk-mtk.h"
12 #include "clk-gate.h"
13
14 #include <dt-bindings/clock/mt6779-clk.h>
15
16 static const struct mtk_gate_regs venc_cg_regs = {
17 .set_ofs = 0x0004,
18 .clr_ofs = 0x0008,
19 .sta_ofs = 0x0000,
20 };
21
22 #define GATE_VENC_I(_id, _name, _parent, _shift) \
23 GATE_MTK(_id, _name, _parent, &venc_cg_regs, _shift, \
24 &mtk_clk_gate_ops_setclr_inv)
25
26 static const struct mtk_gate venc_clks[] = {
27 GATE_VENC_I(CLK_VENC_GCON_LARB, "venc_larb", "venc_sel", 0),
28 GATE_VENC_I(CLK_VENC_GCON_VENC, "venc_venc", "venc_sel", 4),
29 GATE_VENC_I(CLK_VENC_GCON_JPGENC, "venc_jpgenc", "venc_sel", 8),
30 GATE_VENC_I(CLK_VENC_GCON_GALS, "venc_gals", "venc_sel", 28),
31 };
32
33 static const struct of_device_id of_match_clk_mt6779_venc[] = {
34 { .compatible = "mediatek,mt6779-vencsys", },
35 {}
36 };
37
clk_mt6779_venc_probe(struct platform_device * pdev)38 static int clk_mt6779_venc_probe(struct platform_device *pdev)
39 {
40 struct clk_onecell_data *clk_data;
41 struct device_node *node = pdev->dev.of_node;
42
43 clk_data = mtk_alloc_clk_data(CLK_VENC_GCON_NR_CLK);
44
45 mtk_clk_register_gates(node, venc_clks, ARRAY_SIZE(venc_clks),
46 clk_data);
47
48 return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
49 }
50
51 static struct platform_driver clk_mt6779_venc_drv = {
52 .probe = clk_mt6779_venc_probe,
53 .driver = {
54 .name = "clk-mt6779-venc",
55 .of_match_table = of_match_clk_mt6779_venc,
56 },
57 };
58
59 module_platform_driver(clk_mt6779_venc_drv);
60 MODULE_LICENSE("GPL");
61