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 #include <dt-bindings/clock/mt6779-clk.h> 11 12 #include "clk-mtk.h" 13 #include "clk-gate.h" 14 15 static const struct mtk_gate_regs img_cg_regs = { 16 .set_ofs = 0x0004, 17 .clr_ofs = 0x0008, 18 .sta_ofs = 0x0000, 19 }; 20 21 #define GATE_IMG(_id, _name, _parent, _shift) \ 22 GATE_MTK(_id, _name, _parent, &img_cg_regs, _shift, \ 23 &mtk_clk_gate_ops_setclr) 24 25 static const struct mtk_gate img_clks[] = { 26 GATE_IMG(CLK_IMG_LARB5, "imgsys_larb5", "img_sel", 0), 27 GATE_IMG(CLK_IMG_LARB6, "imgsys_larb6", "img_sel", 1), 28 GATE_IMG(CLK_IMG_DIP, "imgsys_dip", "img_sel", 2), 29 GATE_IMG(CLK_IMG_MFB, "imgsys_mfb", "img_sel", 6), 30 GATE_IMG(CLK_IMG_WPE_A, "imgsys_wpe_a", "img_sel", 7), 31 }; 32 33 static const struct of_device_id of_match_clk_mt6779_img[] = { 34 { .compatible = "mediatek,mt6779-imgsys", }, 35 {} 36 }; 37 38 static int clk_mt6779_img_probe(struct platform_device *pdev) 39 { 40 struct clk_hw_onecell_data *clk_data; 41 struct device_node *node = pdev->dev.of_node; 42 43 clk_data = mtk_alloc_clk_data(CLK_IMG_NR_CLK); 44 45 mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks), 46 clk_data); 47 48 return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); 49 } 50 51 static struct platform_driver clk_mt6779_img_drv = { 52 .probe = clk_mt6779_img_probe, 53 .driver = { 54 .name = "clk-mt6779-img", 55 .of_match_table = of_match_clk_mt6779_img, 56 }, 57 }; 58 59 module_platform_driver(clk_mt6779_img_drv); 60 MODULE_LICENSE("GPL"); 61