修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/drivers/dma/dw/internal.h
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@@ -1,11 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0 */
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 /*
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  * Driver for the Synopsys DesignWare DMA Controller
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  *
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  * Copyright (C) 2013 Intel Corporation
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #ifndef _DMA_DW_INTERNAL_H
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@@ -15,9 +12,66 @@
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12
 
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 #include "regs.h"
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14
 
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-int dw_dma_disable(struct dw_dma_chip *chip);
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-int dw_dma_enable(struct dw_dma_chip *chip);
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+int do_dma_probe(struct dw_dma_chip *chip);
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+int do_dma_remove(struct dw_dma_chip *chip);
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+
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+void do_dw_dma_on(struct dw_dma *dw);
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+void do_dw_dma_off(struct dw_dma *dw);
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+
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+int do_dw_dma_disable(struct dw_dma_chip *chip);
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+int do_dw_dma_enable(struct dw_dma_chip *chip);
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 extern bool dw_dma_filter(struct dma_chan *chan, void *param);
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+#ifdef CONFIG_ACPI
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+void dw_dma_acpi_controller_register(struct dw_dma *dw);
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+void dw_dma_acpi_controller_free(struct dw_dma *dw);
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+#else /* !CONFIG_ACPI */
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+static inline void dw_dma_acpi_controller_register(struct dw_dma *dw) {}
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+static inline void dw_dma_acpi_controller_free(struct dw_dma *dw) {}
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+#endif /* !CONFIG_ACPI */
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+
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+struct platform_device;
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+
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+#ifdef CONFIG_OF
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+struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev);
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+void dw_dma_of_controller_register(struct dw_dma *dw);
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+void dw_dma_of_controller_free(struct dw_dma *dw);
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+#else
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+static inline struct dw_dma_platform_data *dw_dma_parse_dt(struct platform_device *pdev)
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+{
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+	return NULL;
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+}
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+static inline void dw_dma_of_controller_register(struct dw_dma *dw) {}
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+static inline void dw_dma_of_controller_free(struct dw_dma *dw) {}
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+#endif
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+
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+struct dw_dma_chip_pdata {
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+	const struct dw_dma_platform_data *pdata;
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+	int (*probe)(struct dw_dma_chip *chip);
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+	int (*remove)(struct dw_dma_chip *chip);
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+	struct dw_dma_chip *chip;
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+};
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+
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+static __maybe_unused const struct dw_dma_chip_pdata dw_dma_chip_pdata = {
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+	.probe = dw_dma_probe,
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+	.remove = dw_dma_remove,
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+};
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+
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+static const struct dw_dma_platform_data idma32_pdata = {
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+	.nr_channels = 8,
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+	.chan_allocation_order = CHAN_ALLOCATION_ASCENDING,
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+	.chan_priority = CHAN_PRIORITY_ASCENDING,
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+	.block_size = 131071,
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+	.nr_masters = 1,
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+	.data_width = {4},
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+	.multi_block = {1, 1, 1, 1, 1, 1, 1, 1},
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+};
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+
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+static __maybe_unused const struct dw_dma_chip_pdata idma32_chip_pdata = {
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+	.pdata = &idma32_pdata,
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+	.probe = idma32_dma_probe,
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+	.remove = idma32_dma_remove,
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+};
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+
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 #endif /* _DMA_DW_INTERNAL_H */