ASoC: Intel: Skylake: split fw and dsp initialization

The DSP instance creation also loads the firmware on DSPs. For library load
the firmware names come from topology so can't be loaded at object creation.

So split the firmware load and object creation. FW load is now called after
topology init in platform probe.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/bxt-sst.c

@@ -397,6 +397,19 @@ int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 	skl->cores.count = 2;
 	skl->boot_complete = false;
 	init_waitqueue_head(&skl->boot_wait);
+	skl->is_first_boot = true;
+
+	if (dsp)
+		*dsp = skl;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(bxt_sst_dsp_init);
+
+int bxt_sst_init_fw(struct device *dev, struct skl_sst *ctx)
+{
+	int ret;
+	struct sst_dsp *sst = ctx->dsp;
 
 	ret = sst->fw_ops.load_fw(sst);
 	if (ret < 0) {
@@ -406,13 +419,11 @@ int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 
 	skl_dsp_init_core_state(sst);
 
-	if (dsp)
-		*dsp = skl;
+	ctx->is_first_boot = false;
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(bxt_sst_dsp_init);
-
+EXPORT_SYMBOL_GPL(bxt_sst_init_fw);
 
 void bxt_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx)
 {

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

@@ -203,18 +203,21 @@ static const struct skl_dsp_ops dsp_ops[] = {
 		.id = 0x9d70,
 		.loader_ops = skl_get_loader_ops,
 		.init = skl_sst_dsp_init,
+		.init_fw = skl_sst_init_fw,
 		.cleanup = skl_sst_dsp_cleanup
 	},
 	{
 		.id = 0x9d71,
 		.loader_ops = skl_get_loader_ops,
 		.init = skl_sst_dsp_init,
+		.init_fw = skl_sst_init_fw,
 		.cleanup = skl_sst_dsp_cleanup
 	},
 	{
 		.id = 0x5a98,
 		.loader_ops = bxt_get_loader_ops,
 		.init = bxt_sst_dsp_init,
+		.init_fw = bxt_sst_init_fw,
 		.cleanup = bxt_sst_dsp_cleanup
 	},
 };
@@ -264,7 +267,6 @@ int skl_init_dsp(struct skl *skl)
 	if (ret < 0)
 		return ret;
 
-	skl_dsp_enable_notification(skl->skl_sst, false);
 	dev_dbg(bus->dev, "dsp registration status=%d\n", ret);
 
 	return ret;
@@ -325,6 +327,10 @@ int skl_resume_dsp(struct skl *skl)
 	snd_hdac_ext_bus_ppcap_enable(&skl->ebus, true);
 	snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, true);
 
+	/* check if DSP 1st boot is done */
+	if (skl->skl_sst->is_first_boot == true)
+		return 0;
+
 	ret = skl_dsp_wake(ctx->dsp);
 	if (ret < 0)
 		return ret;

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

@@ -1142,8 +1142,10 @@ static int skl_platform_soc_probe(struct snd_soc_platform *platform)
 {
 	struct hdac_ext_bus *ebus = dev_get_drvdata(platform->dev);
 	struct skl *skl = ebus_to_skl(ebus);
+	const struct skl_dsp_ops *ops;
 	int ret;
 
+	pm_runtime_get_sync(platform->dev);
 	if (ebus->ppcap) {
 		ret = skl_tplg_init(platform, ebus);
 		if (ret < 0) {
@@ -1151,7 +1153,25 @@ static int skl_platform_soc_probe(struct snd_soc_platform *platform)
 			return ret;
 		}
 		skl->platform = platform;
+
+		/* load the firmwares, since all is set */
+		ops = skl_get_dsp_ops(skl->pci->device);
+		if (!ops)
+			return -EIO;
+
+		if (skl->skl_sst->is_first_boot == false) {
+			dev_err(platform->dev, "DSP reports first boot done!!!\n");
+			return -EIO;
+		}
+
+		ret = ops->init_fw(platform->dev, skl->skl_sst);
+		if (ret < 0) {
+			dev_err(platform->dev, "Failed to boot first fw: %d\n", ret);
+			return ret;
+		}
 	}
+	pm_runtime_mark_last_busy(platform->dev);
+	pm_runtime_put_autosuspend(platform->dev);
 
 	return 0;
 }

sound/soc/intel/skylake/skl-sst-dsp.h

@@ -203,6 +203,8 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 		const char *fw_name, struct skl_dsp_loader_ops dsp_ops,
 		struct skl_sst **dsp);
+int skl_sst_init_fw(struct device *dev, struct skl_sst *ctx);
+int bxt_sst_init_fw(struct device *dev, struct skl_sst *ctx);
 void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx);
 void bxt_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx);
 

sound/soc/intel/skylake/skl-sst-ipc.h

@@ -75,6 +75,9 @@ struct skl_sst {
 	/* Is firmware loaded */
 	bool fw_loaded;
 
+	/* first boot ? */
+	bool is_first_boot;
+
 	/* multi-core */
 	struct skl_dsp_cores cores;
 };

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

@@ -484,26 +484,33 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 		return ret;
 
 	skl->cores.count = 2;
-
-	ret = sst->fw_ops.load_fw(sst);
-	if (ret < 0) {
-		dev_err(dev, "Load base fw failed : %d", ret);
-		goto cleanup;
-	}
-
-	skl_dsp_init_core_state(sst);
+	skl->is_first_boot = true;
 
 	if (dsp)
 		*dsp = skl;
 
 	return ret;
-
-cleanup:
-	skl_sst_dsp_cleanup(dev, skl);
-	return ret;
 }
 EXPORT_SYMBOL_GPL(skl_sst_dsp_init);
 
+int skl_sst_init_fw(struct device *dev, struct skl_sst *ctx)
+{
+	int ret;
+	struct sst_dsp *sst = ctx->dsp;
+
+	ret = sst->fw_ops.load_fw(sst);
+	if (ret < 0) {
+		dev_err(dev, "Load base fw failed : %d", ret);
+		return ret;
+	}
+
+	skl_dsp_init_core_state(sst);
+	ctx->is_first_boot = false;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(skl_sst_init_fw);
+
 void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx)
 {
 	skl_clear_module_table(ctx->dsp);

sound/soc/intel/skylake/skl.h

@@ -105,6 +105,7 @@ struct skl_dsp_ops {
 			int irq, const char *fw_name,
 			struct skl_dsp_loader_ops loader_ops,
 			struct skl_sst **skl_sst);
+	int (*init_fw)(struct device *dev, struct skl_sst *ctx);
 	void (*cleanup)(struct device *dev, struct skl_sst *ctx);
 };