ASoC: Intel: Skylake: Add alternative topology binary name

Add alternative topology binary file name based on used machine driver
and fallback to use this name after failed attempt to load topology file
with name based on NHLT.
This change addresses multiple issues with current mechanism, for
example - there are devices without NHLT table, and that currently
results in tplg_name being empty.

Signed-off-by: Mateusz Gorski <mateusz.gorski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200427132727.24942-2-mateusz.gorski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/skl-topology.c

@@ -14,6 +14,7 @@
 #include <linux/uuid.h>
 #include <sound/intel-nhlt.h>
 #include <sound/soc.h>
+#include <sound/soc-acpi.h>
 #include <sound/soc-topology.h>
 #include <uapi/sound/snd_sst_tokens.h>
 #include <uapi/sound/skl-tplg-interface.h>
@@ -3565,8 +3566,20 @@ int skl_tplg_init(struct snd_soc_component *component, struct hdac_bus *bus)
 
 	ret = request_firmware(&fw, skl->tplg_name, bus->dev);
 	if (ret < 0) {
-		dev_info(bus->dev, "tplg fw %s load failed with %d, falling back to dfw_sst.bin",
-				skl->tplg_name, ret);
+		char alt_tplg_name[64];
+
+		snprintf(alt_tplg_name, sizeof(alt_tplg_name), "%s-tplg.bin",
+			 skl->mach->drv_name);
+		dev_info(bus->dev, "tplg fw %s load failed with %d, trying alternative tplg name %s",
+			 skl->tplg_name, ret, alt_tplg_name);
+
+		ret = request_firmware(&fw, alt_tplg_name, bus->dev);
+		if (!ret)
+			goto component_load;
+
+		dev_info(bus->dev, "tplg %s failed with %d, falling back to dfw_sst.bin",
+			 alt_tplg_name, ret);
+
 		ret = request_firmware(&fw, "dfw_sst.bin", bus->dev);
 		if (ret < 0) {
 			dev_err(bus->dev, "Fallback tplg fw %s load failed with %d\n",
@@ -3575,6 +3588,8 @@ int skl_tplg_init(struct snd_soc_component *component, struct hdac_bus *bus)
 		}
 	}
 
+component_load:
+
 	/*
 	 * The complete tplg for SKL is loaded as index 0, we don't use
 	 * any other index