diff options
| author | Mark Brown <broonie@kernel.org> | 2023-07-17 08:12:31 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-07-17 08:12:31 +0300 |
| commit | 0791faebfe750292a8a842b64795a390ca4a3b51 (patch) | |
| tree | 0e6095a5a0130398b0693bddfdc421c41eebda7c /drivers/cdx/cdx.c | |
| parent | e8bf1741c14eb8e4a4e1364d45aeeab66660ab9b (diff) | |
| parent | fdf0eaf11452d72945af31804e2a1048ee1b574c (diff) | |
| download | linux-0791faebfe750292a8a842b64795a390ca4a3b51.tar.xz | |
ASoC: Merge v6.5-rc2
Get a similar baseline to my other branches, and fixes for people using
the branch.
Diffstat (limited to 'drivers/cdx/cdx.c')
| -rw-r--r-- | drivers/cdx/cdx.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/cdx/cdx.c b/drivers/cdx/cdx.c index 38511fd36325..d2cad4c670a0 100644 --- a/drivers/cdx/cdx.c +++ b/drivers/cdx/cdx.c @@ -62,6 +62,8 @@ #include <linux/mm.h> #include <linux/xarray.h> #include <linux/cdx/cdx_bus.h> +#include <linux/iommu.h> +#include <linux/dma-map-ops.h> #include "cdx.h" /* Default DMA mask for devices on a CDX bus */ @@ -257,6 +259,7 @@ static void cdx_shutdown(struct device *dev) static int cdx_dma_configure(struct device *dev) { + struct cdx_driver *cdx_drv = to_cdx_driver(dev->driver); struct cdx_device *cdx_dev = to_cdx_device(dev); u32 input_id = cdx_dev->req_id; int ret; @@ -267,9 +270,23 @@ static int cdx_dma_configure(struct device *dev) return ret; } + if (!ret && !cdx_drv->driver_managed_dma) { + ret = iommu_device_use_default_domain(dev); + if (ret) + arch_teardown_dma_ops(dev); + } + return 0; } +static void cdx_dma_cleanup(struct device *dev) +{ + struct cdx_driver *cdx_drv = to_cdx_driver(dev->driver); + + if (!cdx_drv->driver_managed_dma) + iommu_device_unuse_default_domain(dev); +} + /* show configuration fields */ #define cdx_config_attr(field, format_string) \ static ssize_t \ @@ -405,6 +422,7 @@ struct bus_type cdx_bus_type = { .remove = cdx_remove, .shutdown = cdx_shutdown, .dma_configure = cdx_dma_configure, + .dma_cleanup = cdx_dma_cleanup, .bus_groups = cdx_bus_groups, .dev_groups = cdx_dev_groups, }; |