diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-08-20 16:15:45 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-08-21 09:41:28 +0530 |
| commit | b685fe26e9af7318d73bf50af659a282d188a3e5 (patch) | |
| tree | f7e9c77ba6bb3fda5abb0b5d94d5aaef765f79f3 /drivers/dma/dw/platform.c | |
| parent | 84da042e702347c186b84d9cc2e766f83e1814d6 (diff) | |
dmaengine: dw: platform: Split ACPI helpers to separate module
For better maintenance split ACPI helpers to the separate module.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190820131546.75744-10-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/dw/platform.c')
| -rw-r--r-- | drivers/dma/dw/platform.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c index b8514d7895d1..d50e038acb1e 100644 --- a/drivers/dma/dw/platform.c +++ b/drivers/dma/dw/platform.c @@ -19,7 +19,6 @@ #include <linux/of.h> #include <linux/of_dma.h> #include <linux/acpi.h> -#include <linux/acpi_dma.h> #include "internal.h" @@ -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); } -#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 static struct dw_dma_platform_data * dw_dma_parse_dt(struct platform_device *pdev) |