diff options
| author | Nicolas Guion <nicolas.guion@stericsson.com> | 2012-05-23 15:59:43 +0200 |
|---|---|---|
| committer | Mathieu J. Poirier <mathieu.poirier@linaro.org> | 2012-09-25 09:37:07 -0600 |
| commit | 153fd2429851e485225f383e534622e9fee05aa8 (patch) | |
| tree | 0c278a1a9afc3842fcc2d3f25d5a22ee265891e8 /drivers/power | |
| parent | 32cc8cb2cf10aaf657e2fb064748890e7c86a03e (diff) | |
power: ab8500 - Accessing Autopower register fails
The fallback software control register has moved in the ab8505
and ab9540.
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Mattias WALLIN <mattias.wallin@stericsson.com>
Reviewed-by: Nicolas GUION <nicolas.guion@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/ab8500_charger.c | 53 |
1 files changed, 36 insertions, 17 deletions
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index 0a781a07d4a1..ee5ad7b40fc4 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -92,6 +92,8 @@ #define CHG_WD_INTERVAL (60 * HZ) +#define AB8500_SW_CONTROL_FALLBACK 0x03 + /* UsbLineStatus register - usb types */ enum ab8500_charger_link_status { USB_STAT_NOT_CONFIGURED, @@ -307,42 +309,59 @@ static enum power_supply_property ab8500_charger_usb_props[] = { static void ab8500_enable_disable_sw_fallback(struct ab8500_charger *di, bool fallback) { + u8 val; u8 reg; + u8 bank; + u8 bit; int ret; dev_dbg(di->dev, "SW Fallback: %d\n", fallback); + if (is_ab8500(di->parent)) { + bank = 0x15; + reg = 0x0; + bit = 3; + } else { + bank = AB8500_SYS_CTRL1_BLOCK; + reg = AB8500_SW_CONTROL_FALLBACK; + bit = 0; + } + /* read the register containing fallback bit */ - ret = abx500_get_register_interruptible(di->dev, 0x15, 0x00, ®); - if (ret) { - dev_err(di->dev, "%d write failed\n", __LINE__); + ret = abx500_get_register_interruptible(di->dev, bank, reg, &val); + if (ret < 0) { + dev_err(di->dev, "%d read failed\n", __LINE__); return; } - /* enable the OPT emulation registers */ - ret = abx500_set_register_interruptible(di->dev, 0x11, 0x00, 0x2); - if (ret) { - dev_err(di->dev, "%d write failed\n", __LINE__); - return; + if (is_ab8500(di->parent)) { + /* enable the OPT emulation registers */ + ret = abx500_set_register_interruptible(di->dev, + 0x11, 0x00, 0x2); + if (ret) { + dev_err(di->dev, "%d write failed\n", __LINE__); + goto disable_otp; + } } if (fallback) - reg |= 0x8; + val |= (1 << bit); else - reg &= ~0x8; + val &= ~(1 << bit); /* write back the changed fallback bit value to register */ - ret = abx500_set_register_interruptible(di->dev, 0x15, 0x00, reg); + ret = abx500_set_register_interruptible(di->dev, bank, reg, val); if (ret) { dev_err(di->dev, "%d write failed\n", __LINE__); - return; } - /* disable the set OTP registers again */ - ret = abx500_set_register_interruptible(di->dev, 0x11, 0x00, 0x0); - if (ret) { - dev_err(di->dev, "%d write failed\n", __LINE__); - return; +disable_otp: + if (is_ab8500(di->parent)) { + /* disable the set OTP registers again */ + ret = abx500_set_register_interruptible(di->dev, + 0x11, 0x00, 0x0); + if (ret) + dev_err(di->dev, "%d write failed\n", __LINE__); } } |