linux-stable/drivers/dma/dw-edma/dw-edma-v0-debugfs.h
Frank Li 2031845713 dmaengine: dw-edma: Detach the private data and chip info structures
"struct dw_edma_chip" contains an internal structure "struct dw_edma" that
is used by the eDMA core internally and should not be touched by the eDMA
controller drivers themselves. But currently, the eDMA controller drivers
like "dw-edma-pci" allocate and populate this internal structure before
passing it on to the eDMA core. The eDMA core further populates the
structure and uses it. This is wrong!

Hence, move all the "struct dw_edma" specifics from controller drivers to
the eDMA core.

Link: https://lore.kernel.org/r/20220524152159.2370739-3-Frank.Li@nxp.com
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
2022-06-23 14:49:30 -05:00

27 lines
627 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
* Synopsys DesignWare eDMA v0 core
*
* Author: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
*/
#ifndef _DW_EDMA_V0_DEBUG_FS_H
#define _DW_EDMA_V0_DEBUG_FS_H
#include <linux/dma/edma.h>
#ifdef CONFIG_DEBUG_FS
void dw_edma_v0_debugfs_on(struct dw_edma *dw);
void dw_edma_v0_debugfs_off(struct dw_edma *dw);
#else
static inline void dw_edma_v0_debugfs_on(struct dw_edma *dw)
{
}
static inline void dw_edma_v0_debugfs_off(struct dw_edma *dw)
{
}
#endif /* CONFIG_DEBUG_FS */
#endif /* _DW_EDMA_V0_DEBUG_FS_H */