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| author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 13:30:20 +0200 |
|---|---|---|
| committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 13:30:20 +0200 |
| commit | e7549b926dd3ceec048f5689df90d4ec970c9419 (patch) | |
| tree | c8645e0b4343c309aac1a3838a17cfcf0893d7b5 /drivers/staging/intel_sst/intel_sst_drv_interface.c | |
| parent | 499ba610c2829adafbf393c2f3773d73ae4445f3 (diff) | |
| download | kernel_samsung_smdk4412-e7549b926dd3ceec048f5689df90d4ec970c9419.zip kernel_samsung_smdk4412-e7549b926dd3ceec048f5689df90d4ec970c9419.tar.gz kernel_samsung_smdk4412-e7549b926dd3ceec048f5689df90d4ec970c9419.tar.bz2 | |
more driver stuff from 3.2.72
Diffstat (limited to 'drivers/staging/intel_sst/intel_sst_drv_interface.c')
| -rw-r--r-- | drivers/staging/intel_sst/intel_sst_drv_interface.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/staging/intel_sst/intel_sst_drv_interface.c b/drivers/staging/intel_sst/intel_sst_drv_interface.c index 1021477..22bd29c 100644 --- a/drivers/staging/intel_sst/intel_sst_drv_interface.c +++ b/drivers/staging/intel_sst/intel_sst_drv_interface.c @@ -33,6 +33,7 @@ #include <linux/fs.h> #include <linux/firmware.h> #include <linux/pm_runtime.h> +#include <linux/export.h> #include "intel_sst.h" #include "intel_sst_ioctl.h" #include "intel_sst_fw_ipc.h" @@ -53,6 +54,13 @@ int sst_download_fw(void) if (sst_drv_ctx->sst_state != SST_UN_INIT) return -EPERM; + /* Reload firmware is not needed for MRST */ + if ( (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) && sst_drv_ctx->fw_downloaded) { + pr_debug("FW already downloaded, skip for MRST platform\n"); + sst_drv_ctx->sst_state = SST_FW_RUNNING; + return 0; + } + snprintf(name, sizeof(name), "%s%04x%s", "fw_sst_", sst_drv_ctx->pci_id, ".bin"); @@ -71,6 +79,9 @@ int sst_download_fw(void) retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[0]); if (retval) pr_err("fw download failed %d\n" , retval); + else + sst_drv_ctx->fw_downloaded = 1; + end_restore: release_firmware(fw_sst); sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT; |