drivers: gpdma: pm runtime works only on ace

CAVS platforms are not fully integrated with zephyr. Some of the
registers are still programed from SOF side. This feature can be enabled
for those platforms later when integration is fully done.

Signed-off-by: Tomasz Leman <tomasz.m.leman@intel.com>

drivers/dma/dma_intel_adsp_gpdma.c

@@ -162,7 +162,7 @@ static int intel_adsp_gpdma_config(const struct device *dev, uint32_t channel,
 static int intel_adsp_gpdma_start(const struct device *dev, uint32_t channel)
 {
 	int ret = 0;
-#if CONFIG_PM_DEVICE
+#if CONFIG_PM_DEVICE && CONFIG_SOC_SERIES_INTEL_ACE
 	bool first_use = false;
 	enum pm_device_state state;
 
@@ -187,7 +187,7 @@ static int intel_adsp_gpdma_start(const struct device *dev, uint32_t channel)
 		intel_adsp_gpdma_llp_disable(dev, channel);
 	}
 
-#if CONFIG_PM_DEVICE
+#if CONFIG_PM_DEVICE && CONFIG_SOC_SERIES_INTEL_ACE
 	/* Device usage is counted by the calls of dw_dma_start and dw_dma_stop. For the first use,
 	 * we need to make sure that the pm_device_runtime_get and pm_device_runtime_put functions
 	 * calls are balanced.
@@ -433,14 +433,14 @@ int intel_adsp_gpdma_init(const struct device *dev)
 	dev_data->dma_ctx.magic = DMA_MAGIC;
 	dev_data->dma_ctx.dma_channels = DW_MAX_CHAN;
 	dev_data->dma_ctx.atomic = dev_data->channels_atomic;
-#if CONFIG_PM_DEVICE
+#if CONFIG_PM_DEVICE && CONFIG_SOC_SERIES_INTEL_ACE
 	if (pm_device_on_power_domain(dev)) {
 		pm_device_init_off(dev);
 	} else {
 		pm_device_init_suspended(dev);
 	}
 
-	return pm_device_runtime_enable(dev);
+	return 0;
 #else
 	return intel_adsp_gpdma_power_on(dev);
 #endif

dts/xtensa/intel/intel_adsp_ace15_mtpm.dtsi

@@ -562,6 +562,7 @@
 			dma-copy-alignment = <4>;
 			status = "okay";
 			power-domain = <&hub_ulp_domain>;
+			zephyr,pm-device-runtime-auto;
 		};
 
 		lpgpdma1: dma@7d000 {
@@ -575,6 +576,7 @@
 			dma-copy-alignment = <4>;
 			status = "okay";
 			power-domain = <&io0_domain>;
+			zephyr,pm-device-runtime-auto;
 		};
 
 		lpgpdma2: dma@7e000 {
@@ -588,6 +590,7 @@
 			dma-copy-alignment = <4>;
 			power-domain = <&io0_domain>;
 			status = "okay";
+			zephyr,pm-device-runtime-auto;
 		};
 
 		sha: adsp-sha@17df00 {