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mfd: Add parameter to disable ab8500 battery management 

This patch makes it possible to disable battery management
via a module boot parameter. When 'ab8500-core.no_bm=1' then
ab8500_btemp, ab8500_chargalg, ab8500_charger and ab8500_fg will
not be probed. This boot parameter is used for scripted testing
of the system.

Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
hifive-unleashed-5.1
Rickard Andersson 2012-04-17 09:30:57 +02:00 committed by Samuel Ortiz
parent 112a80d29b
commit 6ef9418c9e
1 changed files with 35 additions and 20 deletions
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55
drivers/mfd/ab8500-core.c
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@ -97,6 +97,9 @@
#define AB8500_TURN_ON_STATUS 0x00
static bool no_bm; /* No battery management */
module_param(no_bm, bool, S_IRUGO);
#define AB9540_MODEM_CTRL2_REG 0x23
#define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2)
@ -833,26 +836,6 @@ static struct mfd_cell __devinitdata abx500_common_devs[] = {
.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
.resources = ab8500_rtc_resources,
},
{
.name = "ab8500-charger",
.num_resources = ARRAY_SIZE(ab8500_charger_resources),
.resources = ab8500_charger_resources,
},
{
.name = "ab8500-btemp",
.num_resources = ARRAY_SIZE(ab8500_btemp_resources),
.resources = ab8500_btemp_resources,
},
{
.name = "ab8500-fg",
.num_resources = ARRAY_SIZE(ab8500_fg_resources),
.resources = ab8500_fg_resources,
},
{
.name = "ab8500-chargalg",
.num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
.resources = ab8500_chargalg_resources,
},
{
.name = "ab8500-acc-det",
.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
@ -886,6 +869,29 @@ static struct mfd_cell __devinitdata abx500_common_devs[] = {
},
};
static struct mfd_cell __devinitdata ab8500_bm_devs[] = {
{
.name = "ab8500-charger",
.num_resources = ARRAY_SIZE(ab8500_charger_resources),
.resources = ab8500_charger_resources,
},
{
.name = "ab8500-btemp",
.num_resources = ARRAY_SIZE(ab8500_btemp_resources),
.resources = ab8500_btemp_resources,
},
{
.name = "ab8500-fg",
.num_resources = ARRAY_SIZE(ab8500_fg_resources),
.resources = ab8500_fg_resources,
},
{
.name = "ab8500-chargalg",
.num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
.resources = ab8500_chargalg_resources,
},
};
static struct mfd_cell __devinitdata ab8500_devs[] = {
{
.name = "ab8500-gpio",
@ -1204,6 +1210,15 @@ int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
if (ret)
goto out_freeirq;
if (!no_bm) {
/* Add battery management devices */
ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
ARRAY_SIZE(ab8500_bm_devs), NULL,
ab8500->irq_base);
if (ret)
dev_err(ab8500->dev, "error adding bm devices\n");
}
if (is_ab9540(ab8500))
ret = sysfs_create_group(&ab8500->dev->kobj,
&ab9540_attr_group);