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authorTony Lindgren <tony@atomide.com>2015-04-27 20:18:14 +0300
committerLee Jones <lee.jones@linaro.org>2015-06-22 14:25:04 +0300
commit5c188d748216f67c928d67a42f14b5569b6404a5 (patch)
tree51d7376dd9a9e8b3ada5998faf6d80ecce42b8a8
parent53960e2bff0107231d21f9ee7b31502b1daed344 (diff)
downloadlinux-5c188d748216f67c928d67a42f14b5569b6404a5.tar.xz
mfd: twl4030-power: Fix pmic for boards that need AC charger disabled
I noticed the PMIC configuration on 37xx-evm won't actually shut down the voltages during off-idle. Turns out 37xx-evm needs the AC charger state transitions disabled like we are doing for SDP and LDP in the legacy booting case. Let's fix this for device tree based booting by setting up the quirk flag based on the compatible flag. And let's also use the existing define for STARTON_CHG. Note that SDP and EVM do not have the PMIC clken wired to gate the the oscillator while LDP has. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--drivers/mfd/twl4030-power.c45
-rw-r--r--include/linux/i2c/twl.h1
2 files changed, 39 insertions, 7 deletions
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index f440aed61305..04b539850e72 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -264,7 +264,9 @@ out:
return err;
}
-static int twl4030_config_wakeup12_sequence(u8 address)
+static int
+twl4030_config_wakeup12_sequence(const struct twl4030_power_data *pdata,
+ u8 address)
{
int err = 0;
u8 data;
@@ -293,13 +295,14 @@ static int twl4030_config_wakeup12_sequence(u8 address)
if (err)
goto out;
- if (machine_is_omap_3430sdp() || machine_is_omap_ldp()) {
+ if (pdata->ac_charger_quirk || machine_is_omap_3430sdp() ||
+ machine_is_omap_ldp()) {
/* Disabling AC charger effect on sleep-active transitions */
err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data,
R_CFG_P1_TRANSITION);
if (err)
goto out;
- data &= ~(1<<1);
+ data &= ~STARTON_CHG;
err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data,
R_CFG_P1_TRANSITION);
if (err)
@@ -459,8 +462,9 @@ static int twl4030_configure_resource(struct twl4030_resconfig *rconfig)
return 0;
}
-static int load_twl4030_script(struct twl4030_script *tscript,
- u8 address)
+static int load_twl4030_script(const struct twl4030_power_data *pdata,
+ struct twl4030_script *tscript,
+ u8 address)
{
int err;
static int order;
@@ -487,7 +491,7 @@ static int load_twl4030_script(struct twl4030_script *tscript,
if (err)
goto out;
- err = twl4030_config_wakeup12_sequence(address);
+ err = twl4030_config_wakeup12_sequence(pdata, address);
if (err)
goto out;
order = 1;
@@ -567,7 +571,7 @@ twl4030_power_configure_scripts(const struct twl4030_power_data *pdata)
u8 address = twl4030_start_script_address;
for (i = 0; i < pdata->num; i++) {
- err = load_twl4030_script(pdata->scripts[i], address);
+ err = load_twl4030_script(pdata, pdata->scripts[i], address);
if (err)
return err;
address += pdata->scripts[i]->size;
@@ -829,6 +833,21 @@ static struct twl4030_power_data osc_off_idle = {
.board_config = osc_off_rconfig,
};
+static struct twl4030_power_data omap3_idle_ac_quirk = {
+ .scripts = omap3_idle_scripts,
+ .num = ARRAY_SIZE(omap3_idle_scripts),
+ .resource_config = omap3_idle_rconfig,
+ .ac_charger_quirk = true,
+};
+
+static struct twl4030_power_data omap3_idle_ac_quirk_osc_off = {
+ .scripts = omap3_idle_scripts,
+ .num = ARRAY_SIZE(omap3_idle_scripts),
+ .resource_config = omap3_idle_rconfig,
+ .board_config = osc_off_rconfig,
+ .ac_charger_quirk = true,
+};
+
static const struct of_device_id twl4030_power_of_match[] = {
{
.compatible = "ti,twl4030-power",
@@ -845,6 +864,18 @@ static const struct of_device_id twl4030_power_of_match[] = {
.compatible = "ti,twl4030-power-idle-osc-off",
.data = &osc_off_idle,
},
+ {
+ .compatible = "ti,twl4030-power-omap3-sdp",
+ .data = &omap3_idle_ac_quirk,
+ },
+ {
+ .compatible = "ti,twl4030-power-omap3-ldp",
+ .data = &omap3_idle_ac_quirk_osc_off,
+ },
+ {
+ .compatible = "ti,twl4030-power-omap3-evm",
+ .data = &omap3_idle_ac_quirk,
+ },
{ },
};
MODULE_DEVICE_TABLE(of, twl4030_power_of_match);
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 0bc03f100d04..9ad7828d9d34 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -675,6 +675,7 @@ struct twl4030_power_data {
struct twl4030_resconfig *board_config;
#define TWL4030_RESCONFIG_UNDEF ((u8)-1)
bool use_poweroff; /* Board is wired for TWL poweroff */
+ bool ac_charger_quirk; /* Disable AC charger on board */
};
extern int twl4030_remove_script(u8 flags);