diff options
| author | Feng Tang <feng.tang@intel.com> | 2011-07-08 08:59:26 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-07-08 21:02:25 (GMT) |
| commit | 26af13f15ab281c9e20f8027bc556111644662ae (patch) | |
| tree | fca3d799477812ec81312f1baedbbc9bfe4b5c43 /drivers/staging/intel_sst/intel_sst.c | |
| parent | 35b5ddb6466f66c511217abd8b3f490e759dae3e (diff) | |
| download | linux-fsl-qoriq-26af13f15ab281c9e20f8027bc556111644662ae.tar.xz | |
sst: avoid unnecessary firmware reloading for MRST
SST HW on MRST doesn't need to reload the firmware during suspend/resume
cycle, so remove the extra workload. This also fix a bug that the firmware
sample rate can't be modified when there is no active playback/capture
stream.
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/intel_sst/intel_sst.c')
| -rw-r--r-- | drivers/staging/intel_sst/intel_sst.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/intel_sst/intel_sst.c b/drivers/staging/intel_sst/intel_sst.c index c0c144a..d892861 100644 --- a/drivers/staging/intel_sst/intel_sst.c +++ b/drivers/staging/intel_sst/intel_sst.c @@ -545,7 +545,10 @@ static int intel_sst_runtime_suspend(struct device *dev) /* Move the SST state to Suspended */ mutex_lock(&sst_drv_ctx->sst_lock); sst_drv_ctx->sst_state = SST_SUSPENDED; - sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full); + + /* Only needed by Medfield */ + if (sst_drv_ctx->pci_id != SST_MRST_PCI_ID) + sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full); mutex_unlock(&sst_drv_ctx->sst_lock); return 0; } |