[PATCH 54/57] power: ab8500_charger: Use USBLink1Status Register

From: mathieu . poirier
Date: Tue Sep 25 2012 - 12:14:18 EST


From: Marcus Cooper <marcus.xm.cooper@xxxxxxxxxxxxxx>

The newer AB's such as the AB8505, AB9540 etc include a
USBLink1 Status register which detects a larger range of
external devices. This should be used instead of the
USBLine Status register.

Signed-off-by: Marcus Cooper <marcus.xm.cooper@xxxxxxxxxxxxxx>
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Reviewed-by: Hakan BERG <hakan.berg@xxxxxxxxxxxxxx>
Reviewed-by: Yang QU <yang.qu@xxxxxxxxxxxxxx>
Reviewed-by: Jonas ABERG <jonas.aberg@xxxxxxxxxxxxxx>
---
drivers/power/ab8500_charger.c | 22 ++++++++++++++++------
1 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index 3a97012..7f8f362 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -2258,8 +2258,13 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
* to start the charging process. but by jumping
* thru a few hoops it can be forced to start.
*/
- ret = abx500_get_register_interruptible(di->dev, AB8500_USB,
- AB8500_USB_LINE_STAT_REG, &val);
+ if (is_ab8500(di->parent))
+ ret = abx500_get_register_interruptible(di->dev, AB8500_USB,
+ AB8500_USB_LINE_STAT_REG, &val);
+ else
+ ret = abx500_get_register_interruptible(di->dev, AB8500_USB,
+ AB8500_USB_LINK1_STAT_REG, &val);
+
if (ret >= 0)
dev_dbg(di->dev, "UsbLineStatus register = 0x%02x\n", val);
else
@@ -2299,10 +2304,15 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
AB8500_MCH_IPT_CURLVL_REG,
0x01, 0x00);
/*Check link status*/
- ret = abx500_get_register_interruptible(di->dev,
- AB8500_USB,
- AB8500_USB_LINE_STAT_REG,
- &val);
+ if (is_ab8500(di->parent))
+ ret = abx500_get_register_interruptible(di->dev,
+ AB8500_USB, AB8500_USB_LINE_STAT_REG,
+ &val);
+ else
+ ret = abx500_get_register_interruptible(di->dev,
+ AB8500_USB, AB8500_USB_LINK1_STAT_REG,
+ &val);
+
dev_dbg(di->dev, "USB link status= 0x%02x\n",
(val & link_status) >> USB_LINK_STATUS_SHIFT);
di->invalid_charger_detect_state = 2;
--
1.7.5.4

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