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path: root/drivers/staging/fsl-mc/bus/mc-sys.c
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Diffstat (limited to 'drivers/staging/fsl-mc/bus/mc-sys.c')
-rw-r--r--drivers/staging/fsl-mc/bus/mc-sys.c155
1 files changed, 5 insertions, 150 deletions
diff --git a/drivers/staging/fsl-mc/bus/mc-sys.c b/drivers/staging/fsl-mc/bus/mc-sys.c
index 0c185abe665e..285917c7c8e4 100644
--- a/drivers/staging/fsl-mc/bus/mc-sys.c
+++ b/drivers/staging/fsl-mc/bus/mc-sys.c
@@ -32,13 +32,15 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
-#include "../include/mc-sys.h"
-#include "../include/mc-cmd.h"
-#include "../include/mc.h"
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/device.h>
+#include <linux/io.h>
+#include "../include/mc-sys.h"
+#include "../include/mc-cmd.h"
+#include "../include/mc.h"
+
#include "dpmcp.h"
/**
@@ -68,153 +70,6 @@ static u16 mc_cmd_hdr_read_cmdid(struct mc_command *cmd)
return (cmd_id & MC_CMD_HDR_CMDID_MASK) >> MC_CMD_HDR_CMDID_SHIFT;
}
-/**
- * Creates an MC I/O object
- *
- * @dev: device to be associated with the MC I/O object
- * @mc_portal_phys_addr: physical address of the MC portal to use
- * @mc_portal_size: size in bytes of the MC portal
- * @dpmcp-dev: Pointer to the DPMCP object associated with this MC I/O
- * object or NULL if none.
- * @flags: flags for the new MC I/O object
- * @new_mc_io: Area to return pointer to newly created MC I/O object
- *
- * Returns '0' on Success; Error code otherwise.
- */
-int __must_check fsl_create_mc_io(struct device *dev,
- phys_addr_t mc_portal_phys_addr,
- u32 mc_portal_size,
- struct fsl_mc_device *dpmcp_dev,
- u32 flags, struct fsl_mc_io **new_mc_io)
-{
- int error;
- struct fsl_mc_io *mc_io;
- void __iomem *mc_portal_virt_addr;
- struct resource *res;
-
- mc_io = devm_kzalloc(dev, sizeof(*mc_io), GFP_KERNEL);
- if (!mc_io)
- return -ENOMEM;
-
- mc_io->dev = dev;
- mc_io->flags = flags;
- mc_io->portal_phys_addr = mc_portal_phys_addr;
- mc_io->portal_size = mc_portal_size;
- if (flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
- spin_lock_init(&mc_io->spinlock);
- else
- mutex_init(&mc_io->mutex);
-
- res = devm_request_mem_region(dev,
- mc_portal_phys_addr,
- mc_portal_size,
- "mc_portal");
- if (!res) {
- dev_err(dev,
- "devm_request_mem_region failed for MC portal %#llx\n",
- mc_portal_phys_addr);
- return -EBUSY;
- }
-
- mc_portal_virt_addr = devm_ioremap_nocache(dev,
- mc_portal_phys_addr,
- mc_portal_size);
- if (!mc_portal_virt_addr) {
- dev_err(dev,
- "devm_ioremap_nocache failed for MC portal %#llx\n",
- mc_portal_phys_addr);
- return -ENXIO;
- }
-
- mc_io->portal_virt_addr = mc_portal_virt_addr;
- if (dpmcp_dev) {
- error = fsl_mc_io_set_dpmcp(mc_io, dpmcp_dev);
- if (error < 0)
- goto error_destroy_mc_io;
- }
-
- *new_mc_io = mc_io;
- return 0;
-
-error_destroy_mc_io:
- fsl_destroy_mc_io(mc_io);
- return error;
-}
-EXPORT_SYMBOL_GPL(fsl_create_mc_io);
-
-/**
- * Destroys an MC I/O object
- *
- * @mc_io: MC I/O object to destroy
- */
-void fsl_destroy_mc_io(struct fsl_mc_io *mc_io)
-{
- struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev;
-
- if (dpmcp_dev)
- fsl_mc_io_unset_dpmcp(mc_io);
-
- devm_iounmap(mc_io->dev, mc_io->portal_virt_addr);
- devm_release_mem_region(mc_io->dev,
- mc_io->portal_phys_addr,
- mc_io->portal_size);
-
- mc_io->portal_virt_addr = NULL;
- devm_kfree(mc_io->dev, mc_io);
-}
-EXPORT_SYMBOL_GPL(fsl_destroy_mc_io);
-
-int fsl_mc_io_set_dpmcp(struct fsl_mc_io *mc_io,
- struct fsl_mc_device *dpmcp_dev)
-{
- int error;
-
- if (WARN_ON(!dpmcp_dev))
- return -EINVAL;
-
- if (WARN_ON(mc_io->dpmcp_dev))
- return -EINVAL;
-
- if (WARN_ON(dpmcp_dev->mc_io))
- return -EINVAL;
-
- error = dpmcp_open(mc_io,
- 0,
- dpmcp_dev->obj_desc.id,
- &dpmcp_dev->mc_handle);
- if (error < 0)
- return error;
-
- mc_io->dpmcp_dev = dpmcp_dev;
- dpmcp_dev->mc_io = mc_io;
- return 0;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_io_set_dpmcp);
-
-void fsl_mc_io_unset_dpmcp(struct fsl_mc_io *mc_io)
-{
- int error;
- struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev;
-
- if (WARN_ON(!dpmcp_dev))
- return;
-
- if (WARN_ON(dpmcp_dev->mc_io != mc_io))
- return;
-
- error = dpmcp_close(mc_io,
- 0,
- dpmcp_dev->mc_handle);
- if (error < 0) {
- dev_err(&dpmcp_dev->dev, "dpmcp_close() failed: %d\n",
- error);
- }
-
- mc_io->dpmcp_dev = NULL;
- dpmcp_dev->mc_io = NULL;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_io_unset_dpmcp);
-
static int mc_status_to_error(enum mc_cmd_status status)
{
static const int mc_status_to_error_map[] = {