| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Neil Armstrong | 1190 | 98.67% | 4 | 57.14% |
| Paul Gortmaker | 7 | 0.58% | 1 | 14.29% |
| Wei Yongjun | 7 | 0.58% | 1 | 14.29% |
| Thomas Gleixner | 2 | 0.17% | 1 | 14.29% |
| Total | 1206 | 7 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2010 Broadcom * Copyright (C) 2012 Stephen Warren * Copyright (C) 2016 Neil Armstrong <narmstrong@baylibre.com> */ #include <linux/clk-provider.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/stringify.h> #include <linux/regmap.h> #include <linux/mfd/syscon.h> #include <dt-bindings/clock/oxsemi,ox810se.h> #include <dt-bindings/clock/oxsemi,ox820.h> /* Standard regmap gate clocks */ struct clk_oxnas_gate { struct clk_hw hw; unsigned int bit; struct regmap *regmap; }; struct oxnas_stdclk_data { struct clk_hw_onecell_data *onecell_data; struct clk_oxnas_gate **gates; unsigned int ngates; struct clk_oxnas_pll **plls; unsigned int nplls; }; /* Regmap offsets */ #define CLK_STAT_REGOFFSET 0x24 #define CLK_SET_REGOFFSET 0x2c #define CLK_CLR_REGOFFSET 0x30 static inline struct clk_oxnas_gate *to_clk_oxnas_gate(struct clk_hw *hw) { return container_of(hw, struct clk_oxnas_gate, hw); } static int oxnas_clk_gate_is_enabled(struct clk_hw *hw) { struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw); int ret; unsigned int val; ret = regmap_read(std->regmap, CLK_STAT_REGOFFSET, &val); if (ret < 0) return ret; return val & BIT(std->bit); } static int oxnas_clk_gate_enable(struct clk_hw *hw) { struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw); regmap_write(std->regmap, CLK_SET_REGOFFSET, BIT(std->bit)); return 0; } static void oxnas_clk_gate_disable(struct clk_hw *hw) { struct clk_oxnas_gate *std = to_clk_oxnas_gate(hw); regmap_write(std->regmap, CLK_CLR_REGOFFSET, BIT(std->bit)); } static const struct clk_ops oxnas_clk_gate_ops = { .enable = oxnas_clk_gate_enable, .disable = oxnas_clk_gate_disable, .is_enabled = oxnas_clk_gate_is_enabled, }; static const char *const osc_parents[] = { "oscillator", }; static const char *const eth_parents[] = { "gmacclk", }; #define OXNAS_GATE(_name, _bit, _parents) \ struct clk_oxnas_gate _name = { \ .bit = (_bit), \ .hw.init = &(struct clk_init_data) { \ .name = #_name, \ .ops = &oxnas_clk_gate_ops, \ .parent_names = _parents, \ .num_parents = ARRAY_SIZE(_parents), \ .flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED), \ }, \ } static OXNAS_GATE(ox810se_leon, 0, osc_parents); static OXNAS_GATE(ox810se_dma_sgdma, 1, osc_parents); static OXNAS_GATE(ox810se_cipher, 2, osc_parents); static OXNAS_GATE(ox810se_sata, 4, osc_parents); static OXNAS_GATE(ox810se_audio, 5, osc_parents); static OXNAS_GATE(ox810se_usbmph, 6, osc_parents); static OXNAS_GATE(ox810se_etha, 7, eth_parents); static OXNAS_GATE(ox810se_pciea, 8, osc_parents); static OXNAS_GATE(ox810se_nand, 9, osc_parents); static struct clk_oxnas_gate *ox810se_gates[] = { &ox810se_leon, &ox810se_dma_sgdma, &ox810se_cipher, &ox810se_sata, &ox810se_audio, &ox810se_usbmph, &ox810se_etha, &ox810se_pciea, &ox810se_nand, }; static OXNAS_GATE(ox820_leon, 0, osc_parents); static OXNAS_GATE(ox820_dma_sgdma, 1, osc_parents); static OXNAS_GATE(ox820_cipher, 2, osc_parents); static OXNAS_GATE(ox820_sd, 3, osc_parents); static OXNAS_GATE(ox820_sata, 4, osc_parents); static OXNAS_GATE(ox820_audio, 5, osc_parents); static OXNAS_GATE(ox820_usbmph, 6, osc_parents); static OXNAS_GATE(ox820_etha, 7, eth_parents); static OXNAS_GATE(ox820_pciea, 8, osc_parents); static OXNAS_GATE(ox820_nand, 9, osc_parents); static OXNAS_GATE(ox820_ethb, 10, eth_parents); static OXNAS_GATE(ox820_pcieb, 11, osc_parents); static OXNAS_GATE(ox820_ref600, 12, osc_parents); static OXNAS_GATE(ox820_usbdev, 13, osc_parents); static struct clk_oxnas_gate *ox820_gates[] = { &ox820_leon, &ox820_dma_sgdma, &ox820_cipher, &ox820_sd, &ox820_sata, &ox820_audio, &ox820_usbmph, &ox820_etha, &ox820_pciea, &ox820_nand, &ox820_etha, &ox820_pciea, &ox820_ref600, &ox820_usbdev, }; static struct clk_hw_onecell_data ox810se_hw_onecell_data = { .hws = { [CLK_810_LEON] = &ox810se_leon.hw, [CLK_810_DMA_SGDMA] = &ox810se_dma_sgdma.hw, [CLK_810_CIPHER] = &ox810se_cipher.hw, [CLK_810_SATA] = &ox810se_sata.hw, [CLK_810_AUDIO] = &ox810se_audio.hw, [CLK_810_USBMPH] = &ox810se_usbmph.hw, [CLK_810_ETHA] = &ox810se_etha.hw, [CLK_810_PCIEA] = &ox810se_pciea.hw, [CLK_810_NAND] = &ox810se_nand.hw, }, .num = ARRAY_SIZE(ox810se_gates), }; static struct clk_hw_onecell_data ox820_hw_onecell_data = { .hws = { [CLK_820_LEON] = &ox820_leon.hw, [CLK_820_DMA_SGDMA] = &ox820_dma_sgdma.hw, [CLK_820_CIPHER] = &ox820_cipher.hw, [CLK_820_SD] = &ox820_sd.hw, [CLK_820_SATA] = &ox820_sata.hw, [CLK_820_AUDIO] = &ox820_audio.hw, [CLK_820_USBMPH] = &ox820_usbmph.hw, [CLK_820_ETHA] = &ox820_etha.hw, [CLK_820_PCIEA] = &ox820_pciea.hw, [CLK_820_NAND] = &ox820_nand.hw, [CLK_820_ETHB] = &ox820_ethb.hw, [CLK_820_PCIEB] = &ox820_pcieb.hw, [CLK_820_REF600] = &ox820_ref600.hw, [CLK_820_USBDEV] = &ox820_usbdev.hw, }, .num = ARRAY_SIZE(ox820_gates), }; static struct oxnas_stdclk_data ox810se_stdclk_data = { .onecell_data = &ox810se_hw_onecell_data, .gates = ox810se_gates, .ngates = ARRAY_SIZE(ox810se_gates), }; static struct oxnas_stdclk_data ox820_stdclk_data = { .onecell_data = &ox820_hw_onecell_data, .gates = ox820_gates, .ngates = ARRAY_SIZE(ox820_gates), }; static const struct of_device_id oxnas_stdclk_dt_ids[] = { { .compatible = "oxsemi,ox810se-stdclk", &ox810se_stdclk_data }, { .compatible = "oxsemi,ox820-stdclk", &ox820_stdclk_data }, { } }; static int oxnas_stdclk_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; const struct oxnas_stdclk_data *data; const struct of_device_id *id; struct regmap *regmap; int ret; int i; id = of_match_device(oxnas_stdclk_dt_ids, &pdev->dev); if (!id) return -ENODEV; data = id->data; regmap = syscon_node_to_regmap(of_get_parent(np)); if (IS_ERR(regmap)) { dev_err(&pdev->dev, "failed to have parent regmap\n"); return PTR_ERR(regmap); } for (i = 0 ; i < data->ngates ; ++i) data->gates[i]->regmap = regmap; for (i = 0; i < data->onecell_data->num; i++) { if (!data->onecell_data->hws[i]) continue; ret = devm_clk_hw_register(&pdev->dev, data->onecell_data->hws[i]); if (ret) return ret; } return of_clk_add_hw_provider(np, of_clk_hw_onecell_get, data->onecell_data); } static struct platform_driver oxnas_stdclk_driver = { .probe = oxnas_stdclk_probe, .driver = { .name = "oxnas-stdclk", .suppress_bind_attrs = true, .of_match_table = oxnas_stdclk_dt_ids, }, }; builtin_platform_driver(oxnas_stdclk_driver);
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