From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/drivers/dma/dw/internal.h | 66 ++++++++++++++++++++++++++++++---
1 files changed, 60 insertions(+), 6 deletions(-)
diff --git a/kernel/drivers/dma/dw/internal.h b/kernel/drivers/dma/dw/internal.h
index 4143973..2e1c52e 100644
--- a/kernel/drivers/dma/dw/internal.h
+++ b/kernel/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 +12,66 @@
#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;
+};
+
+static __maybe_unused const struct dw_dma_chip_pdata dw_dma_chip_pdata = {
+ .probe = dw_dma_probe,
+ .remove = dw_dma_remove,
+};
+
+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,
+};
+
#endif /* _DMA_DW_INTERNAL_H */
--
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