diff options
Diffstat (limited to 'drivers/dma/dw/internal.h')
| -rw-r--r-- | drivers/dma/dw/internal.h | 90 |
1 files changed, 84 insertions, 6 deletions
diff --git a/drivers/dma/dw/internal.h b/drivers/dma/dw/internal.h index 41439732ff6b..f1bd06a20cd6 100644 --- a/drivers/dma/dw/internal.h +++ b/drivers/dma/dw/internal.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Driver for the Synopsys DesignWare DMA Controller * * Copyright (C) 2013 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef _DMA_DW_INTERNAL_H @@ -15,9 +12,90 @@ #include "regs.h" -int dw_dma_disable(struct dw_dma_chip *chip); -int dw_dma_enable(struct dw_dma_chip *chip); +int do_dma_probe(struct dw_dma_chip *chip); +int do_dma_remove(struct dw_dma_chip *chip); + +void do_dw_dma_on(struct dw_dma *dw); +void do_dw_dma_off(struct dw_dma *dw); + +int do_dw_dma_disable(struct dw_dma_chip *chip); +int do_dw_dma_enable(struct dw_dma_chip *chip); extern bool dw_dma_filter(struct dma_chan *chan, void *param); +#ifdef CONFIG_ACPI +void dw_dma_acpi_controller_register(struct dw_dma *dw); +void dw_dma_acpi_controller_free(struct dw_dma *dw); +#else /* !CONFIG_ACPI */ +static inline void dw_dma_acpi_controller_register(struct dw_dma *dw) {} +static inline void dw_dma_acpi_controller_free(struct dw_dma *dw) {} +#endif /* !CONFIG_ACPI */ + +struct platform_device; + +#ifdef CONFIG_OF +struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev); +void dw_dma_of_controller_register(struct dw_dma *dw); +void dw_dma_of_controller_free(struct dw_dma *dw); +#else +static inline struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev) +{ + return NULL; +} +static inline void dw_dma_of_controller_register(struct dw_dma *dw) {} +static inline void dw_dma_of_controller_free(struct dw_dma *dw) {} +#endif + +struct dw_dma_chip_pdata { + const struct dw_dma_platform_data *pdata; + int (*probe)(struct dw_dma_chip *chip); + int (*remove)(struct dw_dma_chip *chip); + struct dw_dma_chip *chip; + u8 m_master; + u8 p_master; +}; + +static __maybe_unused const struct dw_dma_chip_pdata dw_dma_chip_pdata = { + .probe = dw_dma_probe, + .remove = dw_dma_remove, + .m_master = 0, + .p_master = 1, +}; + +static const struct dw_dma_platform_data idma32_pdata = { + .nr_channels = 8, + .chan_allocation_order = CHAN_ALLOCATION_ASCENDING, + .chan_priority = CHAN_PRIORITY_ASCENDING, + .block_size = 131071, + .nr_masters = 1, + .data_width = {4}, + .multi_block = {1, 1, 1, 1, 1, 1, 1, 1}, +}; + +static __maybe_unused const struct dw_dma_chip_pdata idma32_chip_pdata = { + .pdata = &idma32_pdata, + .probe = idma32_dma_probe, + .remove = idma32_dma_remove, + .m_master = 0, + .p_master = 0, +}; + +static const struct dw_dma_platform_data xbar_pdata = { + .nr_channels = 8, + .chan_allocation_order = CHAN_ALLOCATION_ASCENDING, + .chan_priority = CHAN_PRIORITY_ASCENDING, + .block_size = 131071, + .nr_masters = 1, + .data_width = {4}, + .quirks = DW_DMA_QUIRK_XBAR_PRESENT, +}; + +static __maybe_unused const struct dw_dma_chip_pdata xbar_chip_pdata = { + .pdata = &xbar_pdata, + .probe = idma32_dma_probe, + .remove = idma32_dma_remove, + .m_master = 0, + .p_master = 0, +}; + #endif /* _DMA_DW_INTERNAL_H */ |