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Date: Fri, 15 Feb 2013 12:44:48 +0000
From: Lee Jones <lee.jones@...aro.org>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: arnd@...db.de, linus.walleij@...ricsson.com,
cbouatmailru@...il.com, sameo@...ux.intel.com,
Hakan Berg <hakan.berg@...ricsson.com>,
Lee Jones <lee.jones@...aro.org>
Subject: [PATCH 18/40] ab8500-charger: Add AB8505_USB_LINK_STATUS
From: Hakan Berg <hakan.berg@...ricsson.com>
The AB8505 does not have the same address for USB link-status
as has ab8500. Add AB8505_USB_LINK_STATUS and code to switch
to correct constant.
Signed-off-by: Hakan Berg <hakan.berg@...ricsson.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Reviewed-by: Mian Yousaf KAUKAB <mian.yousaf.kaukab@...ricsson.com>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@...ricsson.com>
Reviewed-by: Rabin VINCENT <rabin.vincent@...ricsson.com>
---
drivers/power/ab8500_charger.c | 43 ++++++++++++++++++++++++++++++++--------
1 file changed, 35 insertions(+), 8 deletions(-)
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index 547f6ea..b5c7a39 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -80,6 +80,7 @@
/* UsbLineStatus register bit masks */
#define AB8500_USB_LINK_STATUS 0x78
+#define AB8505_USB_LINK_STATUS 0xF8
#define AB8500_STD_HOST_SUSP 0x18
/* Watchdog timeout constant */
@@ -809,10 +810,12 @@ static int ab8500_charger_read_usb_type(struct ab8500_charger *di)
if (is_ab8500(di->parent)) {
ret = abx500_get_register_interruptible(di->dev, AB8500_USB,
AB8500_USB_LINE_STAT_REG, &val);
- } else {
- if (is_ab9540(di->parent) || is_ab8505(di->parent))
+ } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val);
+ } else {
+ dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
+ return -ENXIO;
}
if (ret < 0) {
dev_err(di->dev, "%s ab8500 read failed\n", __func__);
@@ -820,7 +823,14 @@ static int ab8500_charger_read_usb_type(struct ab8500_charger *di)
}
/* get the USB type */
- val = (val & AB8500_USB_LINK_STATUS) >> 3;
+ if (is_ab8500(di->parent)) {
+ val = (val & AB8500_USB_LINK_STATUS) >> 3;
+ } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
+ val = (val & AB8505_USB_LINK_STATUS) >> 3;
+ } else {
+ dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
+ return -ENXIO;
+ }
ret = ab8500_charger_max_usb_curr(di,
(enum ab8500_charger_link_status) val);
@@ -856,12 +866,16 @@ static int ab8500_charger_detect_usb_type(struct ab8500_charger *di)
return ret;
}
- if (is_ab8500(di->parent))
+ if (is_ab8500(di->parent)) {
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB, AB8500_USB_LINE_STAT_REG, &val);
- else
+ } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
ret = abx500_get_register_interruptible(di->dev,
AB8500_USB, AB8500_USB_LINK1_STAT_REG, &val);
+ } else {
+ dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
+ return -ENXIO;
+ }
if (ret < 0) {
dev_err(di->dev, "%s ab8500 read failed\n", __func__);
return ret;
@@ -875,7 +889,14 @@ static int ab8500_charger_detect_usb_type(struct ab8500_charger *di)
*/
/* get the USB type */
- val = (val & AB8500_USB_LINK_STATUS) >> 3;
+ if (is_ab8500(di->parent)) {
+ val = (val & AB8500_USB_LINK_STATUS) >> 3;
+ } else if (is_ab9540(di->parent) || is_ab8505(di->parent)) {
+ val = (val & AB8505_USB_LINK_STATUS) >> 3;
+ } else {
+ dev_err(di->dev, "%s unsupported analog baseband\n", __func__);
+ return -ENXIO;
+ }
if (val)
break;
}
@@ -2287,6 +2308,7 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
int detected_chargers;
int ret;
u8 val;
+ u8 link_status;
struct ab8500_charger *di = container_of(work,
struct ab8500_charger, usb_link_status_work);
@@ -2313,8 +2335,13 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
else
dev_dbg(di->dev, "Error reading USB link status\n");
+ if (is_ab9540(di->parent) || is_ab8505(di->parent))
+ link_status = AB8505_USB_LINK_STATUS;
+ else
+ link_status = AB8500_USB_LINK_STATUS;
+
if (detected_chargers & USB_PW_CONN) {
- if (((val & AB8500_USB_LINK_STATUS) >> 3) == USB_STAT_NOT_VALID_LINK &&
+ if (((val & link_status) >> 3) == USB_STAT_NOT_VALID_LINK &&
di->invalid_charger_detect_state == 0) {
dev_dbg(di->dev, "Invalid charger detected, state= 0\n");
/*Enable charger*/
@@ -2337,7 +2364,7 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
ret = abx500_get_register_interruptible(di->dev, AB8500_USB,
AB8500_USB_LINE_STAT_REG, &val);
dev_dbg(di->dev, "USB link status= 0x%02x\n",
- (val & AB8500_USB_LINK_STATUS) >> 3);
+ (val & link_status) >> 3);
di->invalid_charger_detect_state = 2;
}
} else {
--
1.7.10.4
--
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