diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt7622-hif.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt7622-hif.c | 130 |
1 files changed, 32 insertions, 98 deletions
diff --git a/drivers/clk/mediatek/clk-mt7622-hif.c b/drivers/clk/mediatek/clk-mt7622-hif.c index a6e8534276c6..5bcfe12c4fd0 100644 --- a/drivers/clk/mediatek/clk-mt7622-hif.c +++ b/drivers/clk/mediatek/clk-mt7622-hif.c @@ -1,22 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2017 MediaTek Inc. * Author: Chen Zhong <chen.zhong@mediatek.com> * Sean Wang <sean.wang@mediatek.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk-provider.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include "clk-mtk.h" @@ -24,23 +14,11 @@ #include <dt-bindings/clock/mt7622-clk.h> -#define GATE_PCIE(_id, _name, _parent, _shift) { \ - .id = _id, \ - .name = _name, \ - .parent_name = _parent, \ - .regs = &pcie_cg_regs, \ - .shift = _shift, \ - .ops = &mtk_clk_gate_ops_no_setclr_inv, \ - } - -#define GATE_SSUSB(_id, _name, _parent, _shift) { \ - .id = _id, \ - .name = _name, \ - .parent_name = _parent, \ - .regs = &ssusb_cg_regs, \ - .shift = _shift, \ - .ops = &mtk_clk_gate_ops_no_setclr_inv, \ - } +#define GATE_PCIE(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &pcie_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +#define GATE_SSUSB(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &ssusb_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) static const struct mtk_gate_regs pcie_cg_regs = { .set_ofs = 0x30, @@ -84,86 +62,42 @@ static const struct mtk_gate pcie_clks[] = { GATE_PCIE(CLK_SATA_PM_EN, "sata_pm_en", "univpll2_d4", 30), }; -static int clk_mt7622_ssusbsys_init(struct platform_device *pdev) -{ - struct clk_onecell_data *clk_data; - struct device_node *node = pdev->dev.of_node; - int r; - - clk_data = mtk_alloc_clk_data(CLK_SSUSB_NR_CLK); - - mtk_clk_register_gates(node, ssusb_clks, ARRAY_SIZE(ssusb_clks), - clk_data); - - r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); - if (r) - dev_err(&pdev->dev, - "could not register clock provider: %s: %d\n", - pdev->name, r); - - mtk_register_reset_controller(node, 1, 0x34); - - return r; -} - -static int clk_mt7622_pciesys_init(struct platform_device *pdev) -{ - struct clk_onecell_data *clk_data; - struct device_node *node = pdev->dev.of_node; - int r; - - clk_data = mtk_alloc_clk_data(CLK_PCIE_NR_CLK); +static u16 rst_ofs[] = { 0x34, }; - mtk_clk_register_gates(node, pcie_clks, ARRAY_SIZE(pcie_clks), - clk_data); - - r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); - if (r) - dev_err(&pdev->dev, - "could not register clock provider: %s: %d\n", - pdev->name, r); +static const struct mtk_clk_rst_desc clk_rst_desc = { + .version = MTK_RST_SIMPLE, + .rst_bank_ofs = rst_ofs, + .rst_bank_nr = ARRAY_SIZE(rst_ofs), +}; - mtk_register_reset_controller(node, 1, 0x34); +static const struct mtk_clk_desc ssusb_desc = { + .clks = ssusb_clks, + .num_clks = ARRAY_SIZE(ssusb_clks), + .rst_desc = &clk_rst_desc, +}; - return r; -} +static const struct mtk_clk_desc pcie_desc = { + .clks = pcie_clks, + .num_clks = ARRAY_SIZE(pcie_clks), + .rst_desc = &clk_rst_desc, +}; static const struct of_device_id of_match_clk_mt7622_hif[] = { - { - .compatible = "mediatek,mt7622-pciesys", - .data = clk_mt7622_pciesys_init, - }, { - .compatible = "mediatek,mt7622-ssusbsys", - .data = clk_mt7622_ssusbsys_init, - }, { - /* sentinel */ - } + { .compatible = "mediatek,mt7622-pciesys", .data = &pcie_desc }, + { .compatible = "mediatek,mt7622-ssusbsys", .data = &ssusb_desc }, + { /* sentinel */ } }; - -static int clk_mt7622_hif_probe(struct platform_device *pdev) -{ - int (*clk_init)(struct platform_device *); - int r; - - clk_init = of_device_get_match_data(&pdev->dev); - if (!clk_init) - return -EINVAL; - - r = clk_init(pdev); - if (r) - dev_err(&pdev->dev, - "could not register clock provider: %s: %d\n", - pdev->name, r); - - return r; -} +MODULE_DEVICE_TABLE(of, of_match_clk_mt7622_hif); static struct platform_driver clk_mt7622_hif_drv = { - .probe = clk_mt7622_hif_probe, + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, .driver = { .name = "clk-mt7622-hif", .of_match_table = of_match_clk_mt7622_hif, }, }; +module_platform_driver(clk_mt7622_hif_drv); -builtin_platform_driver(clk_mt7622_hif_drv); +MODULE_DESCRIPTION("MediaTek MT7622 HIF clocks driver"); +MODULE_LICENSE("GPL"); |