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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/sound/soc/codecs/ts3a227e.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/sound/soc/codecs/ts3a227e.c')
-rw-r--r--kernel/sound/soc/codecs/ts3a227e.c63
1 files changed, 52 insertions, 11 deletions
diff --git a/kernel/sound/soc/codecs/ts3a227e.c b/kernel/sound/soc/codecs/ts3a227e.c
index 9fd80ac18..43568435c 100644
--- a/kernel/sound/soc/codecs/ts3a227e.c
+++ b/kernel/sound/soc/codecs/ts3a227e.c
@@ -23,11 +23,13 @@
#include "ts3a227e.h"
struct ts3a227e {
+ struct device *dev;
struct regmap *regmap;
struct snd_soc_jack *jack;
bool plugged;
bool mic_present;
unsigned int buttons_held;
+ int irq;
};
/* Button values to be reported on the jack */
@@ -189,16 +191,28 @@ static irqreturn_t ts3a227e_interrupt(int irq, void *data)
struct ts3a227e *ts3a227e = (struct ts3a227e *)data;
struct regmap *regmap = ts3a227e->regmap;
unsigned int int_reg, kp_int_reg, acc_reg, i;
+ struct device *dev = ts3a227e->dev;
+ int ret;
/* Check for plug/unplug. */
- regmap_read(regmap, TS3A227E_REG_INTERRUPT, &int_reg);
+ ret = regmap_read(regmap, TS3A227E_REG_INTERRUPT, &int_reg);
+ if (ret) {
+ dev_err(dev, "failed to clear interrupt ret=%d\n", ret);
+ return IRQ_NONE;
+ }
+
if (int_reg & (DETECTION_COMPLETE_EVENT | INS_REM_EVENT)) {
regmap_read(regmap, TS3A227E_REG_ACCESSORY_STATUS, &acc_reg);
ts3a227e_new_jack_state(ts3a227e, acc_reg);
}
/* Report any key events. */
- regmap_read(regmap, TS3A227E_REG_KP_INTERRUPT, &kp_int_reg);
+ ret = regmap_read(regmap, TS3A227E_REG_KP_INTERRUPT, &kp_int_reg);
+ if (ret) {
+ dev_err(dev, "failed to clear key interrupt ret=%d\n", ret);
+ return IRQ_NONE;
+ }
+
for (i = 0; i < TS3A227E_NUM_BUTTONS; i++) {
if (kp_int_reg & PRESS_MASK(i))
ts3a227e->buttons_held |= (1 << i);
@@ -254,12 +268,13 @@ static const struct regmap_config ts3a227e_regmap_config = {
.num_reg_defaults = ARRAY_SIZE(ts3a227e_reg_defaults),
};
-static int ts3a227e_parse_dt(struct ts3a227e *ts3a227e, struct device_node *np)
+static int ts3a227e_parse_device_property(struct ts3a227e *ts3a227e,
+ struct device *dev)
{
u32 micbias;
int err;
- err = of_property_read_u32(np, "ti,micbias", &micbias);
+ err = device_property_read_u32(dev, "ti,micbias", &micbias);
if (!err) {
regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_3,
MICBIAS_SETTING_MASK,
@@ -282,17 +297,17 @@ static int ts3a227e_i2c_probe(struct i2c_client *i2c,
return -ENOMEM;
i2c_set_clientdata(i2c, ts3a227e);
+ ts3a227e->dev = dev;
+ ts3a227e->irq = i2c->irq;
ts3a227e->regmap = devm_regmap_init_i2c(i2c, &ts3a227e_regmap_config);
if (IS_ERR(ts3a227e->regmap))
return PTR_ERR(ts3a227e->regmap);
- if (dev->of_node) {
- ret = ts3a227e_parse_dt(ts3a227e, dev->of_node);
- if (ret) {
- dev_err(dev, "Failed to parse device tree: %d\n", ret);
- return ret;
- }
+ ret = ts3a227e_parse_device_property(ts3a227e, dev);
+ if (ret) {
+ dev_err(dev, "Failed to parse device property: %d\n", ret);
+ return ret;
}
ret = devm_request_threaded_irq(dev, i2c->irq, NULL, ts3a227e_interrupt,
@@ -321,6 +336,32 @@ static int ts3a227e_i2c_probe(struct i2c_client *i2c,
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int ts3a227e_suspend(struct device *dev)
+{
+ struct ts3a227e *ts3a227e = dev_get_drvdata(dev);
+
+ dev_dbg(ts3a227e->dev, "suspend disable irq\n");
+ disable_irq(ts3a227e->irq);
+
+ return 0;
+}
+
+static int ts3a227e_resume(struct device *dev)
+{
+ struct ts3a227e *ts3a227e = dev_get_drvdata(dev);
+
+ dev_dbg(ts3a227e->dev, "resume enable irq\n");
+ enable_irq(ts3a227e->irq);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops ts3a227e_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(ts3a227e_suspend, ts3a227e_resume)
+};
+
static const struct i2c_device_id ts3a227e_i2c_ids[] = {
{ "ts3a227e", 0 },
{ }
@@ -336,7 +377,7 @@ MODULE_DEVICE_TABLE(of, ts3a227e_of_match);
static struct i2c_driver ts3a227e_driver = {
.driver = {
.name = "ts3a227e",
- .owner = THIS_MODULE,
+ .pm = &ts3a227e_pm,
.of_match_table = of_match_ptr(ts3a227e_of_match),
},
.probe = ts3a227e_i2c_probe,