[PATCH 1/7] soundwire: bus: use property to set interrupt masks

From: Bard Liao
Date: Tue Aug 18 2020 - 22:01:11 EST

From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>

Add a slave-level property and program the SCP_INT1_MASK as desired by
the codec driver. Since there is no DisCo property this has to be an
implementation-specific firmware property or hard-coded in the driver.

The only functionality change is that implementation-defined
interrupts are no longer set for amplifiers - those interrupts are
typically for jack detection or acoustic event detection/hotwording.

Tested-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
drivers/soundwire/bus.c | 12 ++++++------
include/linux/soundwire/sdw.h | 2 ++
sound/soc/codecs/max98373-sdw.c | 3 +++
sound/soc/codecs/rt1308-sdw.c | 2 ++
sound/soc/codecs/rt5682-sdw.c | 4 ++++
sound/soc/codecs/rt700-sdw.c | 4 ++++
sound/soc/codecs/rt711-sdw.c | 4 ++++
sound/soc/codecs/rt715-sdw.c | 4 ++++
sound/soc/codecs/wsa881x.c | 1 +
9 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index e6e0fb9a81b4..3b6a87bc254e 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -1184,13 +1184,13 @@ static int sdw_initialize_slave(struct sdw_slave *slave)
return ret;

/*
- * Set bus clash, parity and SCP implementation
- * defined interrupt mask
- * TODO: Read implementation defined interrupt mask
- * from Slave property
+ * Set SCP_INT1_MASK register, typically bus clash and
+ * implementation-defined interrupt mask. The Parity detection
+ * may not always be correct on startup so its use is
+ * device-dependent, it might e.g. only be enabled in
+ * steady-state after a couple of frames.
*/
- val = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
- SDW_SCP_INT1_PARITY;
+ val = slave->prop.scp_int1_mask;

/* Enable SCP interrupts */
ret = sdw_update(slave, SDW_SCP_INTMASK1, val, val);
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 76052f12c9f7..6d91f2ca20b2 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -355,6 +355,7 @@ struct sdw_dpn_prop {
* @dp0_prop: Data Port 0 properties
* @src_dpn_prop: Source Data Port N properties
* @sink_dpn_prop: Sink Data Port N properties
+ * @scp_int1_mask: SCP_INT1_MASK desired settings
*/
struct sdw_slave_prop {
u32 mipi_revision;
@@ -376,6 +377,7 @@ struct sdw_slave_prop {
struct sdw_dp0_prop *dp0_prop;
struct sdw_dpn_prop *src_dpn_prop;
struct sdw_dpn_prop *sink_dpn_prop;
+ u8 scp_int1_mask;
};

/**
diff --git a/sound/soc/codecs/max98373-sdw.c b/sound/soc/codecs/max98373-sdw.c
index 5fe724728e84..17fd1989e873 100644
--- a/sound/soc/codecs/max98373-sdw.c
+++ b/sound/soc/codecs/max98373-sdw.c
@@ -15,6 +15,7 @@
#include <linux/of.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
+#include <linux/soundwire/sdw_registers.h>
#include "max98373.h"
#include "max98373-sdw.h"

@@ -287,6 +288,8 @@ static int max98373_read_prop(struct sdw_slave *slave)
unsigned long addr;
struct sdw_dpn_prop *dpn;

+ prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
+
/* BITMAP: 00001000 Dataport 3 is active */
prop->source_ports = BIT(3);
/* BITMAP: 00000010 Dataport 1 is active */
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c
index b0ba0d2acbdd..5cf10fd447eb 100644
--- a/sound/soc/codecs/rt1308-sdw.c
+++ b/sound/soc/codecs/rt1308-sdw.c
@@ -123,6 +123,8 @@ static int rt1308_read_prop(struct sdw_slave *slave)
unsigned long addr;
struct sdw_dpn_prop *dpn;

+ prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
+
prop->paging_support = true;

/* first we need to allocate memory for set bits in port lists */
diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c
index 94bf6bee78e6..544073975020 100644
--- a/sound/soc/codecs/rt5682-sdw.c
+++ b/sound/soc/codecs/rt5682-sdw.c
@@ -19,6 +19,7 @@
#include <linux/mutex.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
+#include <linux/soundwire/sdw_registers.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -542,6 +543,9 @@ static int rt5682_read_prop(struct sdw_slave *slave)
unsigned long addr;
struct sdw_dpn_prop *dpn;

+ prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
+ SDW_SCP_INT1_PARITY;
+
prop->paging_support = false;

/* first we need to allocate memory for set bits in port lists */
diff --git a/sound/soc/codecs/rt700-sdw.c b/sound/soc/codecs/rt700-sdw.c
index 4d14048d1197..a46b957a3f1b 100644
--- a/sound/soc/codecs/rt700-sdw.c
+++ b/sound/soc/codecs/rt700-sdw.c
@@ -11,6 +11,7 @@
#include <linux/mod_devicetable.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
+#include <linux/soundwire/sdw_registers.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/soc.h>
@@ -338,6 +339,9 @@ static int rt700_read_prop(struct sdw_slave *slave)
unsigned long addr;
struct sdw_dpn_prop *dpn;

+ prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
+ SDW_SCP_INT1_PARITY;
+
prop->paging_support = false;

/* first we need to allocate memory for set bits in port lists */
diff --git a/sound/soc/codecs/rt711-sdw.c b/sound/soc/codecs/rt711-sdw.c
index 45b928954b58..a877e366fec5 100644
--- a/sound/soc/codecs/rt711-sdw.c
+++ b/sound/soc/codecs/rt711-sdw.c
@@ -11,6 +11,7 @@
#include <linux/mod_devicetable.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
+#include <linux/soundwire/sdw_registers.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/soc.h>
@@ -342,6 +343,9 @@ static int rt711_read_prop(struct sdw_slave *slave)
unsigned long addr;
struct sdw_dpn_prop *dpn;

+ prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
+ SDW_SCP_INT1_PARITY;
+
prop->paging_support = false;

/* first we need to allocate memory for set bits in port lists */
diff --git a/sound/soc/codecs/rt715-sdw.c b/sound/soc/codecs/rt715-sdw.c
index d11b23d6b240..0eb8943ed6ff 100644
--- a/sound/soc/codecs/rt715-sdw.c
+++ b/sound/soc/codecs/rt715-sdw.c
@@ -12,6 +12,7 @@
#include <linux/mod_devicetable.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
+#include <linux/soundwire/sdw_registers.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
@@ -436,6 +437,9 @@ static int rt715_read_prop(struct sdw_slave *slave)
unsigned long addr;
struct sdw_dpn_prop *dpn;

+ prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
+ SDW_SCP_INT1_PARITY;
+
prop->paging_support = false;

/* first we need to allocate memory for set bits in port lists */
diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
index d39d479e2378..68e774e69c85 100644
--- a/sound/soc/codecs/wsa881x.c
+++ b/sound/soc/codecs/wsa881x.c
@@ -1112,6 +1112,7 @@ static int wsa881x_probe(struct sdw_slave *pdev,
wsa881x->sconfig.type = SDW_STREAM_PDM;
pdev->prop.sink_ports = GENMASK(WSA881X_MAX_SWR_PORTS, 0);
pdev->prop.sink_dpn_prop = wsa_sink_dpn_prop;
+ pdev->prop.scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
gpiod_direction_output(wsa881x->sd_n, 1);

wsa881x->regmap = devm_regmap_init_sdw(pdev, &wsa881x_regmap_config);
--
2.17.1