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/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/mt6779-clk.h> 14 15 static const struct mtk_gate_regs venc_cg_regs = { 16 .set_ofs = 0x0004, 17 .clr_ofs = 0x0008, 18 .sta_ofs = 0x0000, 19 }; 20 21 #define GATE_VENC_I(_id, _name, _parent, _shift) \ 22 GATE_MTK(_id, _name, _parent, &venc_cg_regs, _shift, \ 23 &mtk_clk_gate_ops_setclr_inv) 24 25 static const struct mtk_gate venc_clks[] = { 26 GATE_VENC_I(CLK_VENC_GCON_LARB, "venc_larb", "venc_sel", 0), 27 GATE_VENC_I(CLK_VENC_GCON_VENC, "venc_venc", "venc_sel", 4), 28 GATE_VENC_I(CLK_VENC_GCON_JPGENC, "venc_jpgenc", "venc_sel", 8), 29 GATE_VENC_I(CLK_VENC_GCON_GALS, "venc_gals", "venc_sel", 28), 30 }; 31 32 static const struct of_device_id of_match_clk_mt6779_venc[] = { 33 { .compatible = "mediatek,mt6779-vencsys", }, 34 {} 35 }; 36 37 static int clk_mt6779_venc_probe(struct platform_device *pdev) 38 { 39 struct clk_onecell_data *clk_data; 40 struct device_node *node = pdev->dev.of_node; 41 42 clk_data = mtk_alloc_clk_data(CLK_VENC_GCON_NR_CLK); 43 44 mtk_clk_register_gates(node, venc_clks, ARRAY_SIZE(venc_clks), 45 clk_data); 46 47 return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); 48 } 49 50 static struct platform_driver clk_mt6779_venc_drv = { 51 .probe = clk_mt6779_venc_probe, 52 .driver = { 53 .name = "clk-mt6779-venc", 54 .of_match_table = of_match_clk_mt6779_venc, 55 }, 56 }; 57 58 builtin_platform_driver(clk_mt6779_venc_drv); 59