From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: 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. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- kernel/sound/soc/codecs/ts3a227e.c | 63 +++++++++++++++++++++++++++++++------- 1 file changed, 52 insertions(+), 11 deletions(-) (limited to 'kernel/sound/soc/codecs/ts3a227e.c') 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, -- cgit 1.2.3-korg