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 mipi0a_cg_regs = { 16 .set_ofs = 0x80, 17 .clr_ofs = 0x80, 18 .sta_ofs = 0x80, 19 }; 20 21 #define GATE_MIPI0A(_id, _name, _parent, _shift) { \ 22 .id = _id, \ 23 .name = _name, \ 24 .parent_name = _parent, \ 25 .regs = &mipi0a_cg_regs, \ 26 .shift = _shift, \ 27 .ops = &mtk_clk_gate_ops_no_setclr_inv, \ 28 } 29 30 static const struct mtk_gate mipi0a_clks[] = { 31 GATE_MIPI0A(CLK_MIPI0A_CSR_CSI_EN_0A, 32 "mipi0a_csr_0a", "f_fseninf_ck", 1), 33 }; 34 35 static int clk_mt6765_mipi0a_probe(struct platform_device *pdev) 36 { 37 struct clk_hw_onecell_data *clk_data; 38 int r; 39 struct device_node *node = pdev->dev.of_node; 40 41 clk_data = mtk_alloc_clk_data(CLK_MIPI0A_NR_CLK); 42 43 mtk_clk_register_gates(node, mipi0a_clks, 44 ARRAY_SIZE(mipi0a_clks), clk_data); 45 46 r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); 47 48 if (r) 49 pr_err("%s(): could not register clock provider: %d\n", 50 __func__, r); 51 52 return r; 53 } 54 55 static const struct of_device_id of_match_clk_mt6765_mipi0a[] = { 56 { .compatible = "mediatek,mt6765-mipi0a", }, 57 {} 58 }; 59 60 static struct platform_driver clk_mt6765_mipi0a_drv = { 61 .probe = clk_mt6765_mipi0a_probe, 62 .driver = { 63 .name = "clk-mt6765-mipi0a", 64 .of_match_table = of_match_clk_mt6765_mipi0a, 65 }, 66 }; 67 68 builtin_platform_driver(clk_mt6765_mipi0a_drv); 69