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/drivers/hid/i2c-hid/i2c-hid.c | 36 ++++++++++++++++++++++++++---------- 1 file changed, 26 insertions(+), 10 deletions(-) (limited to 'kernel/drivers/hid/i2c-hid') diff --git a/kernel/drivers/hid/i2c-hid/i2c-hid.c b/kernel/drivers/hid/i2c-hid/i2c-hid.c index 92d6cdf02..10bd8e6e4 100644 --- a/kernel/drivers/hid/i2c-hid/i2c-hid.c +++ b/kernel/drivers/hid/i2c-hid/i2c-hid.c @@ -42,9 +42,9 @@ #include /* flags */ -#define I2C_HID_STARTED (1 << 0) -#define I2C_HID_RESET_PENDING (1 << 1) -#define I2C_HID_READ_PENDING (1 << 2) +#define I2C_HID_STARTED 0 +#define I2C_HID_RESET_PENDING 1 +#define I2C_HID_READ_PENDING 2 #define I2C_HID_PWR_ON 0x00 #define I2C_HID_PWR_SLEEP 0x01 @@ -149,6 +149,8 @@ struct i2c_hid { int irq; struct i2c_hid_platform_data pdata; + + bool irq_wake_enabled; }; static int __i2c_hid_command(struct i2c_client *client, @@ -1019,7 +1021,6 @@ static int i2c_hid_probe(struct i2c_client *client, hid->driver_data = client; hid->ll_driver = &i2c_hid_ll_driver; hid->dev.parent = &client->dev; - ACPI_COMPANION_SET(&hid->dev, ACPI_COMPANION(&client->dev)); hid->bus = BUS_I2C; hid->version = le16_to_cpu(ihid->hdesc.bcdVersion); hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID); @@ -1027,6 +1028,7 @@ static int i2c_hid_probe(struct i2c_client *client, snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX", client->name, hid->vendor, hid->product); + strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys)); ret = hid_add_device(hid); if (ret) { @@ -1092,14 +1094,21 @@ static int i2c_hid_suspend(struct device *dev) struct i2c_hid *ihid = i2c_get_clientdata(client); struct hid_device *hid = ihid->hid; int ret = 0; - - disable_irq(ihid->irq); - if (device_may_wakeup(&client->dev)) - enable_irq_wake(ihid->irq); + int wake_status; if (hid->driver && hid->driver->suspend) ret = hid->driver->suspend(hid, PMSG_SUSPEND); + disable_irq(ihid->irq); + if (device_may_wakeup(&client->dev)) { + wake_status = enable_irq_wake(ihid->irq); + if (!wake_status) + ihid->irq_wake_enabled = true; + else + hid_warn(hid, "Failed to enable irq wake: %d\n", + wake_status); + } + /* Save some power */ i2c_hid_set_power(client, I2C_HID_PWR_SLEEP); @@ -1112,14 +1121,21 @@ static int i2c_hid_resume(struct device *dev) struct i2c_client *client = to_i2c_client(dev); struct i2c_hid *ihid = i2c_get_clientdata(client); struct hid_device *hid = ihid->hid; + int wake_status; enable_irq(ihid->irq); ret = i2c_hid_hwreset(client); if (ret) return ret; - if (device_may_wakeup(&client->dev)) - disable_irq_wake(ihid->irq); + if (device_may_wakeup(&client->dev) && ihid->irq_wake_enabled) { + wake_status = disable_irq_wake(ihid->irq); + if (!wake_status) + ihid->irq_wake_enabled = false; + else + hid_warn(hid, "Failed to disable irq wake: %d\n", + wake_status); + } if (hid->driver && hid->driver->reset_resume) { ret = hid->driver->reset_resume(hid); -- cgit 1.2.3-korg