Commit b685fe26 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Vinod Koul

dmaengine: dw: platform: Split ACPI helpers to separate module

For better maintenance split ACPI helpers to the separate module.
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190820131546.75744-10-andriy.shevchenko@linux.intel.comSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 84da042e
...@@ -3,7 +3,8 @@ obj-$(CONFIG_DW_DMAC_CORE) += dw_dmac_core.o ...@@ -3,7 +3,8 @@ obj-$(CONFIG_DW_DMAC_CORE) += dw_dmac_core.o
dw_dmac_core-objs := core.o dw.o idma32.o dw_dmac_core-objs := core.o dw.o idma32.o
obj-$(CONFIG_DW_DMAC) += dw_dmac.o obj-$(CONFIG_DW_DMAC) += dw_dmac.o
dw_dmac-objs := platform.o dw_dmac-y := platform.o
dw_dmac-$(CONFIG_ACPI) += acpi.o
obj-$(CONFIG_DW_DMAC_PCI) += dw_dmac_pci.o obj-$(CONFIG_DW_DMAC_PCI) += dw_dmac_pci.o
dw_dmac_pci-objs := pci.o dw_dmac_pci-objs := pci.o
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2013,2019 Intel Corporation
#include <linux/acpi.h>
#include <linux/acpi_dma.h>
#include "internal.h"
static bool dw_dma_acpi_filter(struct dma_chan *chan, void *param)
{
struct acpi_dma_spec *dma_spec = param;
struct dw_dma_slave slave = {
.dma_dev = dma_spec->dev,
.src_id = dma_spec->slave_id,
.dst_id = dma_spec->slave_id,
.m_master = 0,
.p_master = 1,
};
return dw_dma_filter(chan, &slave);
}
void dw_dma_acpi_controller_register(struct dw_dma *dw)
{
struct device *dev = dw->dma.dev;
struct acpi_dma_filter_info *info;
int ret;
if (!has_acpi_companion(dev))
return;
info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
if (!info)
return;
dma_cap_zero(info->dma_cap);
dma_cap_set(DMA_SLAVE, info->dma_cap);
info->filter_fn = dw_dma_acpi_filter;
ret = acpi_dma_controller_register(dev, acpi_dma_simple_xlate, info);
if (ret)
dev_err(dev, "could not register acpi_dma_controller\n");
}
void dw_dma_acpi_controller_free(struct dw_dma *dw)
{
struct device *dev = dw->dma.dev;
if (!has_acpi_companion(dev))
return;
acpi_dma_controller_free(dev);
}
...@@ -23,6 +23,14 @@ int do_dw_dma_enable(struct dw_dma_chip *chip); ...@@ -23,6 +23,14 @@ int do_dw_dma_enable(struct dw_dma_chip *chip);
extern bool dw_dma_filter(struct dma_chan *chan, void *param); 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 dw_dma_chip_pdata { struct dw_dma_chip_pdata {
const struct dw_dma_platform_data *pdata; const struct dw_dma_platform_data *pdata;
int (*probe)(struct dw_dma_chip *chip); int (*probe)(struct dw_dma_chip *chip);
......
...@@ -19,7 +19,6 @@ ...@@ -19,7 +19,6 @@
#include <linux/of.h> #include <linux/of.h>
#include <linux/of_dma.h> #include <linux/of_dma.h>
#include <linux/acpi.h> #include <linux/acpi.h>
#include <linux/acpi_dma.h>
#include "internal.h" #include "internal.h"
...@@ -55,57 +54,6 @@ static struct dma_chan *dw_dma_of_xlate(struct of_phandle_args *dma_spec, ...@@ -55,57 +54,6 @@ static struct dma_chan *dw_dma_of_xlate(struct of_phandle_args *dma_spec,
return dma_request_channel(cap, dw_dma_filter, &slave); return dma_request_channel(cap, dw_dma_filter, &slave);
} }
#ifdef CONFIG_ACPI
static bool dw_dma_acpi_filter(struct dma_chan *chan, void *param)
{
struct acpi_dma_spec *dma_spec = param;
struct dw_dma_slave slave = {
.dma_dev = dma_spec->dev,
.src_id = dma_spec->slave_id,
.dst_id = dma_spec->slave_id,
.m_master = 0,
.p_master = 1,
};
return dw_dma_filter(chan, &slave);
}
static void dw_dma_acpi_controller_register(struct dw_dma *dw)
{
struct device *dev = dw->dma.dev;
struct acpi_dma_filter_info *info;
int ret;
if (!has_acpi_companion(dev))
return;
info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
if (!info)
return;
dma_cap_zero(info->dma_cap);
dma_cap_set(DMA_SLAVE, info->dma_cap);
info->filter_fn = dw_dma_acpi_filter;
ret = acpi_dma_controller_register(dev, acpi_dma_simple_xlate, info);
if (ret)
dev_err(dev, "could not register acpi_dma_controller\n");
}
static void dw_dma_acpi_controller_free(struct dw_dma *dw)
{
struct device *dev = dw->dma.dev;
if (!has_acpi_companion(dev))
return;
acpi_dma_controller_free(dev);
}
#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 */
#ifdef CONFIG_OF #ifdef CONFIG_OF
static struct dw_dma_platform_data * static struct dw_dma_platform_data *
dw_dma_parse_dt(struct platform_device *pdev) dw_dma_parse_dt(struct platform_device *pdev)
......
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