| .. | .. |
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| 1 | +/* SPDX-License-Identifier: GPL-2.0 */ |
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| 1 | 2 | /* |
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| 2 | 3 | * Driver for the Synopsys DesignWare DMA Controller |
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| 3 | 4 | * |
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| 4 | 5 | * Copyright (C) 2013 Intel Corporation |
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| 5 | | - * |
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| 6 | | - * This program is free software; you can redistribute it and/or modify |
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| 7 | | - * it under the terms of the GNU General Public License version 2 as |
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| 8 | | - * published by the Free Software Foundation. |
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| 9 | 6 | */ |
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| 10 | 7 | |
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| 11 | 8 | #ifndef _DMA_DW_INTERNAL_H |
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| .. | .. |
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| 15 | 12 | |
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| 16 | 13 | #include "regs.h" |
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| 17 | 14 | |
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| 18 | | -int dw_dma_disable(struct dw_dma_chip *chip); |
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| 19 | | -int dw_dma_enable(struct dw_dma_chip *chip); |
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| 15 | +int do_dma_probe(struct dw_dma_chip *chip); |
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| 16 | +int do_dma_remove(struct dw_dma_chip *chip); |
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| 17 | + |
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| 18 | +void do_dw_dma_on(struct dw_dma *dw); |
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| 19 | +void do_dw_dma_off(struct dw_dma *dw); |
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| 20 | + |
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| 21 | +int do_dw_dma_disable(struct dw_dma_chip *chip); |
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| 22 | +int do_dw_dma_enable(struct dw_dma_chip *chip); |
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| 20 | 23 | |
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| 21 | 24 | extern bool dw_dma_filter(struct dma_chan *chan, void *param); |
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| 22 | 25 | |
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| 26 | +#ifdef CONFIG_ACPI |
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| 27 | +void dw_dma_acpi_controller_register(struct dw_dma *dw); |
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| 28 | +void dw_dma_acpi_controller_free(struct dw_dma *dw); |
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| 29 | +#else /* !CONFIG_ACPI */ |
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| 30 | +static inline void dw_dma_acpi_controller_register(struct dw_dma *dw) {} |
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| 31 | +static inline void dw_dma_acpi_controller_free(struct dw_dma *dw) {} |
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| 32 | +#endif /* !CONFIG_ACPI */ |
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| 33 | + |
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| 34 | +struct platform_device; |
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| 35 | + |
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| 36 | +#ifdef CONFIG_OF |
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| 37 | +struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev); |
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| 38 | +void dw_dma_of_controller_register(struct dw_dma *dw); |
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| 39 | +void dw_dma_of_controller_free(struct dw_dma *dw); |
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| 40 | +#else |
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| 41 | +static inline struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev) |
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| 42 | +{ |
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| 43 | + return NULL; |
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| 44 | +} |
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| 45 | +static inline void dw_dma_of_controller_register(struct dw_dma *dw) {} |
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| 46 | +static inline void dw_dma_of_controller_free(struct dw_dma *dw) {} |
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| 47 | +#endif |
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| 48 | + |
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| 49 | +struct dw_dma_chip_pdata { |
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| 50 | + const struct dw_dma_platform_data *pdata; |
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| 51 | + int (*probe)(struct dw_dma_chip *chip); |
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| 52 | + int (*remove)(struct dw_dma_chip *chip); |
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| 53 | + struct dw_dma_chip *chip; |
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| 54 | +}; |
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| 55 | + |
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| 56 | +static __maybe_unused const struct dw_dma_chip_pdata dw_dma_chip_pdata = { |
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| 57 | + .probe = dw_dma_probe, |
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| 58 | + .remove = dw_dma_remove, |
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| 59 | +}; |
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| 60 | + |
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| 61 | +static const struct dw_dma_platform_data idma32_pdata = { |
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| 62 | + .nr_channels = 8, |
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| 63 | + .chan_allocation_order = CHAN_ALLOCATION_ASCENDING, |
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| 64 | + .chan_priority = CHAN_PRIORITY_ASCENDING, |
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| 65 | + .block_size = 131071, |
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| 66 | + .nr_masters = 1, |
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| 67 | + .data_width = {4}, |
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| 68 | + .multi_block = {1, 1, 1, 1, 1, 1, 1, 1}, |
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| 69 | +}; |
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| 70 | + |
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| 71 | +static __maybe_unused const struct dw_dma_chip_pdata idma32_chip_pdata = { |
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| 72 | + .pdata = &idma32_pdata, |
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| 73 | + .probe = idma32_dma_probe, |
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| 74 | + .remove = idma32_dma_remove, |
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| 75 | +}; |
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| 76 | + |
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| 23 | 77 | #endif /* _DMA_DW_INTERNAL_H */ |
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