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mfd: cpcap-whisper: Notify the USB sub-system of USB events

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Change-Id: I7707f9c0589bcc46529cab13a34a5376aca4899a
Signed-off-by: Benoit Goby <benoit@android.com>
This commit is contained in:
Benoit Goby 2010-07-20 20:29:02 -07:00 committed by Colin Cross
parent 6878c410f2
commit dded1ea2a0
1 changed files with 20 additions and 0 deletions
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20
drivers/mfd/cpcap-whisper.c
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@ -27,6 +27,7 @@
#include <linux/workqueue.h>
#include <linux/regulator/consumer.h>
#include <linux/usb/otg.h>
#include <linux/spi/cpcap.h>
#include <linux/spi/cpcap-regbits.h>
@ -96,6 +97,7 @@ struct cpcap_whisper_data {
struct switch_dev wsdev;
struct switch_dev dsdev;
struct switch_dev asdev;
struct otg_transceiver *otg;
};
static int whisper_debug;
@ -202,6 +204,9 @@ static int configure_hardware(struct cpcap_whisper_data *data,
retval |= cpcap_regacc_write(data->cpcap, CPCAP_REG_USBC1, 0,
CPCAP_BIT_VBUSPD);
gpio_set_value(data->pdata->data_gpio, 1);
if (data->otg)
blocking_notifier_call_chain(&data->otg->notifier,
USB_EVENT_VBUS, NULL);
break;
case CPCAP_ACCY_USB_HOST:
@ -209,6 +214,9 @@ static int configure_hardware(struct cpcap_whisper_data *data,
CPCAP_BIT_VBUSPD);
gpio_set_value(data->pdata->pwr_gpio, 1);
gpio_set_value(data->pdata->data_gpio, 1);
if (data->otg)
blocking_notifier_call_chain(&data->otg->notifier,
USB_EVENT_ID, NULL);
break;
case CPCAP_ACCY_WHISPER:
@ -237,6 +245,9 @@ static int configure_hardware(struct cpcap_whisper_data *data,
retval |= cpcap_regacc_write(data->cpcap, CPCAP_REG_USBC2, 0,
CPCAP_BIT_USBXCVREN);
vusb_disable(data);
if (data->otg)
blocking_notifier_call_chain(&data->otg->notifier,
USB_EVENT_NONE, NULL);
break;
}
@ -538,6 +549,10 @@ static int cpcap_whisper_probe(struct platform_device *pdev)
goto free_irqs;
}
#ifdef CONFIG_USB_CPCAP_OTG
data->otg = otg_get_transceiver();
#endif
data->cpcap->accydata = data;
dev_info(&pdev->dev, "CPCAP Whisper detection probed\n");
@ -581,6 +596,11 @@ static int __exit cpcap_whisper_remove(struct platform_device *pdev)
vusb_disable(data);
regulator_put(data->regulator);
#ifdef CONFIG_USB_CPCAP_OTG
if (data->otg)
otg_put_transceiver(data->otg);
#endif
wake_lock_destroy(&data->wake_lock);
data->cpcap->accydata = NULL;