From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Simple indirection to existing register.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Rander Wang <rander.wang@xxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
drivers/soundwire/cadence_master.c | 8 ++++++++
drivers/soundwire/cadence_master.h | 2 ++
drivers/soundwire/intel.c | 1 +
3 files changed, 11 insertions(+)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 4fbb19557f5e..615b0b63a3e1 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -756,6 +756,14 @@ cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num)
}
EXPORT_SYMBOL(cdns_reset_page_addr);
+u32 cdns_read_ping_status(struct sdw_bus *bus)
+{
+ struct sdw_cdns *cdns = bus_to_cdns(bus);
+
+ return cdns_readl(cdns, CDNS_MCP_SLAVE_STAT);
+}
+EXPORT_SYMBOL(cdns_read_ping_status);
+
/*
* IRQ handling
*/
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h
index 595d72c15d97..ca9e805bab88 100644
--- a/drivers/soundwire/cadence_master.h
+++ b/drivers/soundwire/cadence_master.h
@@ -177,6 +177,8 @@ enum sdw_command_response
cdns_xfer_msg_defer(struct sdw_bus *bus,
struct sdw_msg *msg, struct sdw_defer *defer);
+u32 cdns_read_ping_status(struct sdw_bus *bus);
+
int cdns_bus_conf(struct sdw_bus *bus, struct sdw_bus_params *params);
int cdns_set_sdw_stream(struct snd_soc_dai *dai,
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 25b27cd1be1d..e1e943396e36 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -1255,6 +1255,7 @@ static struct sdw_master_ops sdw_intel_ops = {
.set_bus_conf = cdns_bus_conf,
.pre_bank_switch = intel_pre_bank_switch,
.post_bank_switch = intel_post_bank_switch,
+ .read_ping_status = cdns_read_ping_status,
};
static int intel_init(struct sdw_intel *sdw)
--
2.25.1
