drivers: dma: intel-adsp-hda: add delay to stop host dma

According to hardware spec, host dma needs some delay to completely stop.
In the bug the host dma is disabled in different path in a few microseonds.
The first setting disabled the host dma and called pm_device_runtime_put
to power off it. The second setting found the host dma was still alive
and calle pm_device_runtime_put again. This results to pm->usage
checking failed.

BugLink: thesofproject/sof#8686
Signed-off-by: Rander Wang <rander.wang@intel.com>

drivers/dma/dma_intel_adsp_hda.c

@@ -326,6 +326,18 @@ int intel_adsp_hda_dma_stop(const struct device *dev, uint32_t channel)
 
 	intel_adsp_hda_disable(cfg->base, cfg->regblock_size, channel);
 
+	/* host dma needs some cycles to completely stop */
+	if (cfg->direction == HOST_TO_MEMORY || cfg->direction == MEMORY_TO_HOST) {
+		uint32_t delay_cnt = 500;
+
+		do {
+			k_busy_wait(1);
+		} while ((*DGCS(cfg->base, cfg->regblock_size, channel) & DGCS_GBUSY) && (delay_cnt-- > 0));
+
+		if (*DGCS(cfg->base, cfg->regblock_size, channel) & DGCS_GBUSY)
+			return -EBUSY;
+	}
+
 	return pm_device_runtime_put(dev);
 }