projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e9862118 SW |
1 | /* |
| 2 | * Copyright (c) 2014 MediaTek Inc. | |
| 3 | * Author: Shunli Wang <shunli.wang@mediatek.com> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License version 2 as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/clk-provider.h> | |
| 16 | #include <linux/platform_device.h> | |
| 17 | ||
| 18 | #include "clk-mtk.h" | |
| 19 | #include "clk-gate.h" | |
| 20 | ||
| 21 | #include <dt-bindings/clock/mt2701-clk.h> | |
| 22 | ||
| 23 | static const struct mtk_gate_regs img_cg_regs = { | |
| 24 | .set_ofs = 0x0004, | |
| 25 | .clr_ofs = 0x0008, | |
| 26 | .sta_ofs = 0x0000, | |
| 27 | }; | |
| 28 | ||
| 29 | #define GATE_IMG(_id, _name, _parent, _shift) { \ | |
| 30 | .id = _id, \ | |
| 31 | .name = _name, \ | |
| 32 | .parent_name = _parent, \ | |
| 33 | .regs = &img_cg_regs, \ | |
| 34 | .shift = _shift, \ | |
| 35 | .ops = &mtk_clk_gate_ops_setclr, \ | |
| 36 | } | |
| 37 | ||
| 38 | static const struct mtk_gate img_clks[] = { | |
| 39 | GATE_IMG(CLK_IMG_SMI_COMM, "img_smi_comm", "mm_sel", 0), | |
| 40 | GATE_IMG(CLK_IMG_RESZ, "img_resz", "mm_sel", 1), | |
| 41 | GATE_IMG(CLK_IMG_JPGDEC_SMI, "img_jpgdec_smi", "mm_sel", 5), | |
| 42 | GATE_IMG(CLK_IMG_JPGDEC, "img_jpgdec", "mm_sel", 6), | |
| 43 | GATE_IMG(CLK_IMG_VENC_LT, "img_venc_lt", "mm_sel", 8), | |
| 44 | GATE_IMG(CLK_IMG_VENC, "img_venc", "mm_sel", 9), | |
| 45 | }; | |
| 46 | ||
| 47 | static const struct of_device_id of_match_clk_mt2701_img[] = { | |
| 48 | { .compatible = "mediatek,mt2701-imgsys", }, | |
| 49 | {} | |
| 50 | }; | |
| 51 | ||
| 52 | static int clk_mt2701_img_probe(struct platform_device *pdev) | |
| 53 | { | |
| 54 | struct clk_onecell_data *clk_data; | |
| 55 | int r; | |
| 56 | struct device_node *node = pdev->dev.of_node; | |
| 57 | ||
| 58 | clk_data = mtk_alloc_clk_data(CLK_IMG_NR); | |
| 59 | ||
| 60 | mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), | |
| 61 | clk_data); | |
| 62 | ||
| 63 | r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); | |
| 64 | if (r) | |
| 65 | dev_err(&pdev->dev, | |
| 66 | "could not register clock provider: %s: %d\n", | |
| 67 | pdev->name, r); | |
| 68 | ||
| 69 | return r; | |
| 70 | } | |
| 71 | ||
| 72 | static struct platform_driver clk_mt2701_img_drv = { | |
| 73 | .probe = clk_mt2701_img_probe, | |
| 74 | .driver = { | |
| 75 | .name = "clk-mt2701-img", | |
| 76 | .of_match_table = of_match_clk_mt2701_img, | |
| 77 | }, | |
| 78 | }; | |
| 79 | ||
| 80 | builtin_platform_driver(clk_mt2701_img_drv); |