[PATCH v4 15/15] soundwire: intel_init: add implementation of sdw_intel_enable_irq()

Pierre-Louis Bossart
2019-12-13T05:04:52Z

This function is required to enable all interrupts across all links.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
drivers/soundwire/intel_init.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/drivers/soundwire/intel_init.c b/drivers/soundwire/intel_init.c
index a30d95ee71b7..391e8763638f 100644
--- a/drivers/soundwire/intel_init.c
+++ b/drivers/soundwire/intel_init.c
@@ -137,6 +137,30 @@ sdw_intel_scan_controller(struct sdw_intel_acpi_info *info)
return 0;
}

+#define HDA_DSP_REG_ADSPIC2 (0x10)
+#define HDA_DSP_REG_ADSPIS2 (0x14)
+#define HDA_DSP_REG_ADSPIC2_SNDW BIT(5)
+
+/**
+ * sdw_intel_enable_irq() - enable/disable Intel SoundWire IRQ
+ * @mmio_base: The mmio base of the control register
+ * @enable: true if enable
+ */
+void sdw_intel_enable_irq(void __iomem *mmio_base, bool enable)
+{
+ u32 val;
+
+ val = readl(mmio_base + HDA_DSP_REG_ADSPIC2);
+
+ if (enable)
+ val |= HDA_DSP_REG_ADSPIC2_SNDW;
+ else
+ val &= ~HDA_DSP_REG_ADSPIC2_SNDW;
+
+ writel(val, mmio_base + HDA_DSP_REG_ADSPIC2);
+}
+EXPORT_SYMBOL(sdw_intel_enable_irq);
+
static struct sdw_intel_ctx
*sdw_intel_probe_controller(struct sdw_intel_res *res)
{
--
2.20.1