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path: root/drivers/power/isp1704_charger.c
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* isp1704_charger: Allow board specific powering routineKalle Jokiniemi2011-04-201-0/+22
| | | | | | | | | | | | | | | | The ISP1704/1707 chip can be put to full power down state by asserting the CHIP_SEL line. This patch enables platform or board specific hooks to put the device into power down mode in case not needed. This patch is a preparation for enabling this powering routine in n900 (rx-51) devices. Thanks to Heikki Krogerus for helping out with the patch. Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@nokia.com> Acked-By: Heikki Krogerus <heikki.krogerus@nokia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* isp1704_charger: Detect charger after probeHeikki Krogerus2010-11-181-0/+17
| | | | | | | | | | | If the device is booted up with cable connected, or the module is loaded after plugging in the cable, the notification has come and gone, so not relying on it at probe time. Instead this checks the VBUS level manually after probe. Signed-off-by: Heikki Krogerus <heikki.krogerus@nokia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* isp1704_charger: Set isp->dev before anything needs itHeikki Krogerus2010-11-181-3/+3
| | | | | | | | isp1704_test_ulpi() is the first place that needs isp->dev member, so it must be set before calling the function. Signed-off-by: Heikki Krogerus <heikki.krogerus@nokia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* isp1704_charger: Detect HUB/Host chargersHeikki Krogerus2010-11-181-38/+142
| | | | | | | | | | | | | | | | | To avoid breaking high speed chirp handshaking with CDP chargers, no more then 500mA should be drawn. To make sure of this, utilizing current_max property. After the device has enumerated, it's safe to draw the maximum 1800mA as defined in the Battery Charging Specification. This can be also used with normal USB connection if the controller sends ENUMERATED notification with the milliamps as data. From now on the online property indicates VBUS, present property if there is a charger and current_max the milliamps possible to draw from VBUS. Signed-off-by: Heikki Krogerus <heikki.krogerus@nokia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* isp1704_charger: Correct length for storing modelAmeya Palande2010-11-181-1/+1
| | | | | | | | | Model should have room to accommodate the trailing null byte, "isp170[4|7]\0". Signed-off-by: Ameya Palande <ameya.palande@nokia.com> Acked-by: Heikki Krogerus <heikki.krogerus@nokia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: Add isp1704 charger detection driverHeikki Krogerus2010-08-191-0/+369
NXP ISP1704 is Battery Charging Specification 1.0 compliant USB transceiver. This adds a power supply driver for ISP1704 and ISP1707 USB transceivers. Signed-off-by: Heikki Krogerus <ext-heikki.krogerus@nokia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
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