soundwire: intel: move common definitions to header file

Prepare for reused for addition of new hardware

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230314015410.487311-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/soundwire/intel.h b/drivers/soundwire/intel.h
index de9883313c8f..089c41babfc1 100644
--- a/drivers/soundwire/intel.h
+++ b/drivers/soundwire/intel.h
@@ -50,6 +50,35 @@ struct sdw_intel {
 #endif
 };
 
+enum intel_pdi_type {
+	INTEL_PDI_IN = 0,
+	INTEL_PDI_OUT = 1,
+	INTEL_PDI_BD = 2,
+};
+
+/*
+ * Read, write helpers for HW registers
+ */
+static inline int intel_readl(void __iomem *base, int offset)
+{
+	return readl(base + offset);
+}
+
+static inline void intel_writel(void __iomem *base, int offset, int value)
+{
+	writel(value, base + offset);
+}
+
+static inline u16 intel_readw(void __iomem *base, int offset)
+{
+	return readw(base + offset);
+}
+
+static inline void intel_writew(void __iomem *base, int offset, u16 value)
+{
+	writew(value, base + offset);
+}
+
 #define cdns_to_intel(_cdns) container_of(_cdns, struct sdw_intel, cdns)
 
 #define INTEL_MASTER_RESET_ITERATIONS	10