[alsa-devel] [v2 3/5] ASoC: Intel: sst: load firmware using async callback

[Subhransu S. Prusty]

From: Vinod Koul <vinod.koul at intel.com>

We would like the DSP firmware to be availble in driver as soon as possible. So
use the async callback in driver to probe to load the firmware as soon as
usermode is up

Signed-off-by: Vinod Koul <vinod.koul at intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
---
 sound/soc/intel/sst/sst.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sound/soc/intel/sst/sst.c b/sound/soc/intel/sst/sst.c
index 2712e6cf99a9..3b31c5823662 100644
--- a/sound/soc/intel/sst/sst.c
+++ b/sound/soc/intel/sst/sst.c
@@ -377,6 +377,19 @@ static int intel_sst_probe(struct pci_dev *pci,
 
 
 	sst_set_fw_state_locked(sst_drv_ctx, SST_RESET);
+	snprintf(sst_drv_ctx->firmware_name, sizeof(sst_drv_ctx->firmware_name),
+			"%s%04x%s", "fw_sst_",
+			sst_drv_ctx->pci_id, ".bin");
+	pr_debug("Requesting FW %s now...\n", sst_drv_ctx->firmware_name);
+	ret = request_firmware_nowait(THIS_MODULE, 1,
+			sst_drv_ctx->firmware_name, sst_drv_ctx->dev,
+			GFP_KERNEL, sst_drv_ctx, sst_firmware_load_cb);
+
+	if (ret) {
+		pr_err("Firmware load failed with error: %d\n", ret);
+		goto do_unmap_dram;
+	}
+
 	sst_drv_ctx->irq_num = pci->irq;
 	/* Register the ISR */
 	ret = devm_request_threaded_irq(&pci->dev, pci->irq,
-- 
1.9.0