diff options
Diffstat (limited to 'drivers')
121 files changed, 6989 insertions, 5204 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 26488aa893d..2efa56c5ff2 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1312,6 +1312,37 @@ module_exit(i2c_exit); */ /** + * __i2c_transfer - unlocked flavor of i2c_transfer + * @adap: Handle to I2C bus + * @msgs: One or more messages to execute before STOP is issued to + * terminate the operation; each message begins with a START. + * @num: Number of messages to be executed. + * + * Returns negative errno, else the number of messages executed. + * + * Adapter lock must be held when calling this function. No debug logging + * takes place. adap->algo->master_xfer existence isn't checked. + */ +int __i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +{ + unsigned long orig_jiffies; + int ret, try; + + /* Retry automatically on arbitration loss */ + orig_jiffies = jiffies; + for (ret = 0, try = 0; try <= adap->retries; try++) { + ret = adap->algo->master_xfer(adap, msgs, num); + if (ret != -EAGAIN) + break; + if (time_after(jiffies, orig_jiffies + adap->timeout)) + break; + } + + return ret; +} +EXPORT_SYMBOL(__i2c_transfer); + +/** * i2c_transfer - execute a single or combined I2C message * @adap: Handle to I2C bus * @msgs: One or more messages to execute before STOP is issued to @@ -1325,8 +1356,7 @@ module_exit(i2c_exit); */ int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { - unsigned long orig_jiffies; - int ret, try; + int ret; /* REVISIT the fault reporting model here is weak: * @@ -1364,15 +1394,7 @@ int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) i2c_lock_adapter(adap); } - /* Retry automatically on arbitration loss */ - orig_jiffies = jiffies; - for (ret = 0, try = 0; try <= adap->retries; try++) { - ret = adap->algo->master_xfer(adap, msgs, num); - if (ret != -EAGAIN) - break; - if (time_after(jiffies, orig_jiffies + adap->timeout)) - break; - } + ret = __i2c_transfer(adap, msgs, num); i2c_unlock_adapter(adap); return ret; diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index 9575db429df..d941581ab92 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -6,20 +6,82 @@ menuconfig MEDIA_SUPPORT tristate "Multimedia support" depends on HAS_IOMEM help - If you want to use Video for Linux, DVB for Linux, or DAB adapters, + If you want to use Webcams, Video grabber devices and/or TV devices enable this option and other options below. + Additional info and docs are available on the web at + <http://linuxtv.org> if MEDIA_SUPPORT comment "Multimedia core support" # +# Multimedia support - automatically enable V4L2 and DVB core +# +config MEDIA_CAMERA_SUPPORT + bool "Cameras/video grabbers support" + ---help--- + Enable support for webcams and video grabbers. + + Say Y when you have a webcam or a video capture grabber board. + +config MEDIA_ANALOG_TV_SUPPORT + bool "Analog TV support" + ---help--- + Enable analog TV support. + + Say Y when you have a TV board with analog support or with a + hybrid analog/digital TV chipset. + + Note: There are several DVB cards that are based on chips that + support both analog and digital TV. Disabling this option + will disable support for them. + +config MEDIA_DIGITAL_TV_SUPPORT + bool "Digital TV support" + ---help--- + Enable digital TV support. + + Say Y when you have a board with digital support or a board with + hybrid digital TV and analog TV. + +config MEDIA_RADIO_SUPPORT + bool "AM/FM radio receivers/transmitters support" + ---help--- + Enable AM/FM radio support. + + Additional info and docs are available on the web at + <http://linuxtv.org> + + Say Y when you have a board with radio support. + + Note: There are several TV cards that are based on chips that + support radio reception. Disabling this option will + disable support for them. + +config MEDIA_RC_SUPPORT + |