From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/clk/mediatek/clk-mt2701-hif.c | 75 +++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 drivers/clk/mediatek/clk-mt2701-hif.c (limited to 'drivers/clk/mediatek/clk-mt2701-hif.c') diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c new file mode 100644 index 000000000..edeeb033a --- /dev/null +++ b/drivers/clk/mediatek/clk-mt2701-hif.c @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2014 MediaTek Inc. + * Author: Shunli Wang + */ + +#include +#include + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include + +static const struct mtk_gate_regs hif_cg_regs = { + .sta_ofs = 0x0030, +}; + +#define GATE_HIF(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &hif_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate hif_clks[] = { + GATE_HIF(CLK_HIFSYS_USB0PHY, "usb0_phy_clk", "ethpll_500m_ck", 21), + GATE_HIF(CLK_HIFSYS_USB1PHY, "usb1_phy_clk", "ethpll_500m_ck", 22), + GATE_HIF(CLK_HIFSYS_PCIE0, "pcie0_clk", "ethpll_500m_ck", 24), + GATE_HIF(CLK_HIFSYS_PCIE1, "pcie1_clk", "ethpll_500m_ck", 25), + GATE_HIF(CLK_HIFSYS_PCIE2, "pcie2_clk", "ethpll_500m_ck", 26), +}; + +static u16 rst_ofs[] = { 0x34, }; + +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), +}; + +static const struct of_device_id of_match_clk_mt2701_hif[] = { + { .compatible = "mediatek,mt2701-hifsys", }, + {} +}; + +static int clk_mt2701_hif_probe(struct platform_device *pdev) +{ + struct clk_hw_onecell_data *clk_data; + int r; + struct device_node *node = pdev->dev.of_node; + + clk_data = mtk_alloc_clk_data(CLK_HIFSYS_NR); + + mtk_clk_register_gates(node, hif_clks, ARRAY_SIZE(hif_clks), + clk_data); + + r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); + if (r) { + dev_err(&pdev->dev, + "could not register clock provider: %s: %d\n", + pdev->name, r); + return r; + } + + mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc); + + return 0; +} + +static struct platform_driver clk_mt2701_hif_drv = { + .probe = clk_mt2701_hif_probe, + .driver = { + .name = "clk-mt2701-hif", + .of_match_table = of_match_clk_mt2701_hif, + }, +}; + +builtin_platform_driver(clk_mt2701_hif_drv); -- cgit v1.2.3