diff options
author | Neil Armstrong <neil.armstrong@linaro.org> | 2023-06-30 19:58:26 +0300 |
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committer | Stephen Boyd <sboyd@kernel.org> | 2023-07-20 00:53:38 +0300 |
commit | 22250dca0ddee4d9234d89a54a2484a51c489c6d (patch) | |
tree | 17d2a306dea893ea1566e5561962c3184dbd0e96 /drivers/clk/clk-oxnas.c | |
parent | 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff) | |
download | linux-22250dca0ddee4d9234d89a54a2484a51c489c6d.tar.xz |
clk: oxnas: remove obsolete clock driver
Due to lack of maintenance and stall of development for a few years now,
and since no new features will ever be added upstream, remove support
for OX810 and OX820 clock driver.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230630-topic-oxnas-upstream-remove-v2-1-fb6ab3dea87c@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/clk-oxnas.c')
-rw-r--r-- | drivers/clk/clk-oxnas.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/drivers/clk/clk-oxnas.c b/drivers/clk/clk-oxnas.c deleted file mode 100644 index 584e293156ad..000000000000 --- a/drivers/clk/clk-oxnas.c +++ /dev/null @@ -1,251 +0,0 @@ -// 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, *parent_np; - const struct oxnas_stdclk_data *data; - struct regmap *regmap; - int ret; - int i; - - data = of_device_get_match_data(&pdev->dev); - - parent_np = of_get_parent(np); - regmap = syscon_node_to_regmap(parent_np); - of_node_put(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); |