diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt8186-apmixedsys.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8186-apmixedsys.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8186-apmixedsys.c b/drivers/clk/mediatek/clk-mt8186-apmixedsys.c new file mode 100644 index 000000000..e692a2a67 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8186-apmixedsys.c @@ -0,0 +1,133 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright (c) 2022 MediaTek Inc. +// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com> + +#include <linux/clk-provider.h> +#include <linux/platform_device.h> +#include <dt-bindings/clock/mt8186-clk.h> + +#include "clk-mtk.h" +#include "clk-pll.h" + +#define MT8186_PLL_FMAX (3800UL * MHZ) +#define MT8186_PLL_FMIN (1500UL * MHZ) +#define MT8186_INTEGER_BITS (8) + +#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \ + _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift, \ + _tuner_reg, _tuner_en_reg, _tuner_en_bit, \ + _pcw_reg) { \ + .id = _id, \ + .name = _name, \ + .reg = _reg, \ + .pwr_reg = _pwr_reg, \ + .en_mask = _en_mask, \ + .flags = _flags, \ + .rst_bar_mask = _rst_bar_mask, \ + .fmax = MT8186_PLL_FMAX, \ + .fmin = MT8186_PLL_FMIN, \ + .pcwbits = _pcwbits, \ + .pcwibits = MT8186_INTEGER_BITS, \ + .pd_reg = _pd_reg, \ + .pd_shift = _pd_shift, \ + .tuner_reg = _tuner_reg, \ + .tuner_en_reg = _tuner_en_reg, \ + .tuner_en_bit = _tuner_en_bit, \ + .pcw_reg = _pcw_reg, \ + .pcw_shift = 0, \ + .pcw_chg_reg = 0, \ + .en_reg = 0, \ + .pll_en_bit = 0, \ + } + +static const struct mtk_pll_data plls[] = { + /* + * armpll_ll/armpll_bl/ccipll are main clock source of AP MCU, + * should not be closed in Linux world. + */ + PLL(CLK_APMIXED_ARMPLL_LL, "armpll_ll", 0x0204, 0x0210, 0, + PLL_AO, 0, 22, 0x0208, 24, 0, 0, 0, 0x0208), + PLL(CLK_APMIXED_ARMPLL_BL, "armpll_bl", 0x0214, 0x0220, 0, + PLL_AO, 0, 22, 0x0218, 24, 0, 0, 0, 0x0218), + PLL(CLK_APMIXED_CCIPLL, "ccipll", 0x0224, 0x0230, 0, + PLL_AO, 0, 22, 0x0228, 24, 0, 0, 0, 0x0228), + PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x0244, 0x0250, 0xff000000, + HAVE_RST_BAR, BIT(23), 22, 0x0248, 24, 0, 0, 0, 0x0248), + PLL(CLK_APMIXED_UNIV2PLL, "univ2pll", 0x0324, 0x0330, 0xff000000, + HAVE_RST_BAR, BIT(23), 22, 0x0328, 24, 0, 0, 0, 0x0328), + PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x038C, 0x0398, 0, + 0, 0, 22, 0x0390, 24, 0, 0, 0, 0x0390), + PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0254, 0x0260, 0, + 0, 0, 22, 0x0258, 24, 0, 0, 0, 0x0258), + PLL(CLK_APMIXED_NNAPLL, "nnapll", 0x035C, 0x0368, 0, + 0, 0, 22, 0x0360, 24, 0, 0, 0, 0x0360), + PLL(CLK_APMIXED_NNA2PLL, "nna2pll", 0x036C, 0x0378, 0, + 0, 0, 22, 0x0370, 24, 0, 0, 0, 0x0370), + PLL(CLK_APMIXED_ADSPPLL, "adsppll", 0x0304, 0x0310, 0, + 0, 0, 22, 0x0308, 24, 0, 0, 0, 0x0308), + PLL(CLK_APMIXED_MFGPLL, "mfgpll", 0x0314, 0x0320, 0, + 0, 0, 22, 0x0318, 24, 0, 0, 0, 0x0318), + PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x0264, 0x0270, 0, + 0, 0, 22, 0x0268, 24, 0, 0, 0, 0x0268), + PLL(CLK_APMIXED_APLL1, "apll1", 0x0334, 0x0344, 0, + 0, 0, 32, 0x0338, 24, 0x0040, 0x000C, 0, 0x033C), + PLL(CLK_APMIXED_APLL2, "apll2", 0x0348, 0x0358, 0, + 0, 0, 32, 0x034C, 24, 0x0044, 0x000C, 5, 0x0350), +}; + +static const struct of_device_id of_match_clk_mt8186_apmixed[] = { + { .compatible = "mediatek,mt8186-apmixedsys", }, + {} +}; + +static int clk_mt8186_apmixed_probe(struct platform_device *pdev) +{ + struct clk_hw_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + int r; + + clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK); + if (!clk_data) + return -ENOMEM; + + r = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); + if (r) + goto free_apmixed_data; + + r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); + if (r) + goto unregister_plls; + + platform_set_drvdata(pdev, clk_data); + + return r; + +unregister_plls: + mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data); +free_apmixed_data: + mtk_free_clk_data(clk_data); + return r; +} + +static int clk_mt8186_apmixed_remove(struct platform_device *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev); + + of_clk_del_provider(node); + mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data); + mtk_free_clk_data(clk_data); + + return 0; +} + +static struct platform_driver clk_mt8186_apmixed_drv = { + .probe = clk_mt8186_apmixed_probe, + .remove = clk_mt8186_apmixed_remove, + .driver = { + .name = "clk-mt8186-apmixed", + .of_match_table = of_match_clk_mt8186_apmixed, + }, +}; +builtin_platform_driver(clk_mt8186_apmixed_drv); |