103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
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/*
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* Copyright (c) 2017 MediaTek Inc.
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* Author: Weiyi Lu <weiyi.lu@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clk-provider.h>
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#include <linux/platform_device.h>
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#include "clk-mtk.h"
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#include "clk-gate.h"
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#include <dt-bindings/clock/mt2712-clk.h>
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static const struct mtk_gate_regs bdp_cg_regs = {
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.set_ofs = 0x100,
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.clr_ofs = 0x100,
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.sta_ofs = 0x100,
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};
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#define GATE_BDP(_id, _name, _parent, _shift) { \
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.id = _id, \
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.name = _name, \
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.parent_name = _parent, \
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.regs = &bdp_cg_regs, \
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.shift = _shift, \
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.ops = &mtk_clk_gate_ops_no_setclr, \
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}
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static const struct mtk_gate bdp_clks[] = {
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GATE_BDP(CLK_BDP_BRIDGE_B, "bdp_bridge_b", "mm_sel", 0),
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GATE_BDP(CLK_BDP_BRIDGE_DRAM, "bdp_bridge_d", "mm_sel", 1),
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GATE_BDP(CLK_BDP_LARB_DRAM, "bdp_larb_d", "mm_sel", 2),
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GATE_BDP(CLK_BDP_WR_CHANNEL_VDI_PXL, "bdp_vdi_pxl", "tvd_sel", 3),
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GATE_BDP(CLK_BDP_WR_CHANNEL_VDI_DRAM, "bdp_vdi_d", "mm_sel", 4),
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GATE_BDP(CLK_BDP_WR_CHANNEL_VDI_B, "bdp_vdi_b", "mm_sel", 5),
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GATE_BDP(CLK_BDP_MT_B, "bdp_fmt_b", "mm_sel", 9),
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GATE_BDP(CLK_BDP_DISPFMT_27M, "bdp_27m", "di_sel", 10),
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GATE_BDP(CLK_BDP_DISPFMT_27M_VDOUT, "bdp_27m_vdout", "di_sel", 11),
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GATE_BDP(CLK_BDP_DISPFMT_27_74_74, "bdp_27_74_74", "di_sel", 12),
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GATE_BDP(CLK_BDP_DISPFMT_2FS, "bdp_2fs", "di_sel", 13),
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GATE_BDP(CLK_BDP_DISPFMT_2FS_2FS74_148, "bdp_2fs74_148", "di_sel", 14),
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GATE_BDP(CLK_BDP_DISPFMT_B, "bdp_b", "mm_sel", 15),
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GATE_BDP(CLK_BDP_VDO_DRAM, "bdp_vdo_d", "mm_sel", 16),
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GATE_BDP(CLK_BDP_VDO_2FS, "bdp_vdo_2fs", "di_sel", 17),
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GATE_BDP(CLK_BDP_VDO_B, "bdp_vdo_b", "mm_sel", 18),
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GATE_BDP(CLK_BDP_WR_CHANNEL_DI_PXL, "bdp_di_pxl", "di_sel", 19),
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GATE_BDP(CLK_BDP_WR_CHANNEL_DI_DRAM, "bdp_di_d", "mm_sel", 20),
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GATE_BDP(CLK_BDP_WR_CHANNEL_DI_B, "bdp_di_b", "mm_sel", 21),
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GATE_BDP(CLK_BDP_NR_AGENT, "bdp_nr_agent", "nr_sel", 22),
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GATE_BDP(CLK_BDP_NR_DRAM, "bdp_nr_d", "mm_sel", 23),
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GATE_BDP(CLK_BDP_NR_B, "bdp_nr_b", "mm_sel", 24),
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GATE_BDP(CLK_BDP_BRIDGE_RT_B, "bdp_bridge_rt_b", "mm_sel", 25),
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GATE_BDP(CLK_BDP_BRIDGE_RT_DRAM, "bdp_bridge_rt_d", "mm_sel", 26),
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GATE_BDP(CLK_BDP_LARB_RT_DRAM, "bdp_larb_rt_d", "mm_sel", 27),
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GATE_BDP(CLK_BDP_TVD_TDC, "bdp_tvd_tdc", "mm_sel", 28),
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GATE_BDP(CLK_BDP_TVD_54, "bdp_tvd_clk_54", "tvd_sel", 29),
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GATE_BDP(CLK_BDP_TVD_CBUS, "bdp_tvd_cbus", "mm_sel", 30),
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};
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static int clk_mt2712_bdp_probe(struct platform_device *pdev)
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{
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struct clk_onecell_data *clk_data;
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int r;
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struct device_node *node = pdev->dev.of_node;
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clk_data = mtk_alloc_clk_data(CLK_BDP_NR_CLK);
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mtk_clk_register_gates(node, bdp_clks, ARRAY_SIZE(bdp_clks),
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clk_data);
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r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
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if (r != 0)
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pr_err("%s(): could not register clock provider: %d\n",
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__func__, r);
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return r;
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}
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static const struct of_device_id of_match_clk_mt2712_bdp[] = {
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{ .compatible = "mediatek,mt2712-bdpsys", },
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{}
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};
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static struct platform_driver clk_mt2712_bdp_drv = {
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.probe = clk_mt2712_bdp_probe,
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.driver = {
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.name = "clk-mt2712-bdp",
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.of_match_table = of_match_clk_mt2712_bdp,
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},
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};
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builtin_platform_driver(clk_mt2712_bdp_drv);
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