soundwire: intel_init: use EXPORT_SYMBOL_NS

Make sure all symbols in this soundwire-intel-init module are exported
with a namespace.

The MODULE_IMPORT_NS will be used in Intel/SOF HDaudio modules to be
posted in a separate series.

Namespaces are only introduced for the Intel parts of the SoundWire
code at this time, in future patches we should also add namespaces for
Cadence parts and the SoundWire core.

Suggested-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200716150947.22119-7-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/soundwire/intel_init.c

@@ -164,7 +164,7 @@ void sdw_intel_enable_irq(void __iomem *mmio_base, bool enable)
 
 	writel(val, mmio_base + HDA_DSP_REG_ADSPIC2);
 }
-EXPORT_SYMBOL(sdw_intel_enable_irq);
+EXPORT_SYMBOL_NS(sdw_intel_enable_irq, SOUNDWIRE_INTEL_INIT);
 
 static struct sdw_intel_ctx
 *sdw_intel_probe_controller(struct sdw_intel_res *res)
@@ -353,7 +353,7 @@ int sdw_intel_acpi_scan(acpi_handle *parent_handle,
 
 	return sdw_intel_scan_controller(info);
 }
-EXPORT_SYMBOL(sdw_intel_acpi_scan);
+EXPORT_SYMBOL_NS(sdw_intel_acpi_scan, SOUNDWIRE_INTEL_INIT);
 
 /**
  * sdw_intel_probe() - SoundWire Intel probe routine
@@ -370,7 +370,7 @@ struct sdw_intel_ctx
 {
 	return sdw_intel_probe_controller(res);
 }
-EXPORT_SYMBOL(sdw_intel_probe);
+EXPORT_SYMBOL_NS(sdw_intel_probe, SOUNDWIRE_INTEL_INIT);
 
 /**
  * sdw_intel_startup() - SoundWire Intel startup
@@ -383,7 +383,7 @@ int sdw_intel_startup(struct sdw_intel_ctx *ctx)
 {
 	return sdw_intel_startup_controller(ctx);
 }
-EXPORT_SYMBOL(sdw_intel_startup);
+EXPORT_SYMBOL_NS(sdw_intel_startup, SOUNDWIRE_INTEL_INIT);
 /**
  * sdw_intel_exit() - SoundWire Intel exit
  * @ctx: SoundWire context allocated in the probe
@@ -394,7 +394,7 @@ void sdw_intel_exit(struct sdw_intel_ctx *ctx)
 {
 	sdw_intel_cleanup(ctx);
 }
-EXPORT_SYMBOL(sdw_intel_exit);
+EXPORT_SYMBOL_NS(sdw_intel_exit, SOUNDWIRE_INTEL_INIT);
 
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DESCRIPTION("Intel Soundwire Init Library");