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authorBjorn Helgaas <bhelgaas@google.com>2012-09-13 08:41:01 -0600
committerBjorn Helgaas <bhelgaas@google.com>2012-09-13 08:41:01 -0600
commit78890b5989d96ddce989cde929c45ceeded0fcaf (patch)
tree4e2da81fc7c97f11aee174b1eedac110c9a68b3a /drivers/regulator/gpio-regulator.c
parent1959ec5f82acbdf91425b41600f119ebecb5f6a8 (diff)
parent55d512e245bc7699a8800e23df1a24195dd08217 (diff)
downloadop-kernel-dev-78890b5989d96ddce989cde929c45ceeded0fcaf.zip
op-kernel-dev-78890b5989d96ddce989cde929c45ceeded0fcaf.tar.gz
Merge commit 'v3.6-rc5' into next
* commit 'v3.6-rc5': (1098 commits) Linux 3.6-rc5 HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured Remove user-triggerable BUG from mpol_to_str xen/pciback: Fix proper FLR steps. uml: fix compile error in deliver_alarm() dj: memory scribble in logi_dj Fix order of arguments to compat_put_time[spec|val] xen: Use correct masking in xen_swiotlb_alloc_coherent. xen: fix logical error in tlb flushing xen/p2m: Fix one-off error in checking the P2M tree directory. powerpc: Don't use __put_user() in patch_instruction powerpc: Make sure IPI handlers see data written by IPI senders powerpc: Restore correct DSCR in context switch powerpc: Fix DSCR inheritance in copy_thread() powerpc: Keep thread.dscr and thread.dscr_inherit in sync powerpc: Update DSCR on all CPUs when writing sysfs dscr_default powerpc/powernv: Always go into nap mode when CPU is offline powerpc: Give hypervisor decrementer interrupts their own handler powerpc/vphn: Fix arch_update_cpu_topology() return value ARM: gemini: fix the gemini build ... Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c drivers/rapidio/devices/tsi721.c
Diffstat (limited to 'drivers/regulator/gpio-regulator.c')
-rw-r--r--drivers/regulator/gpio-regulator.c38
1 files changed, 26 insertions, 12 deletions
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 34b67be..8b5944f 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -57,16 +57,17 @@ static int gpio_regulator_get_value(struct regulator_dev *dev)
return -EINVAL;
}
-static int gpio_regulator_set_value(struct regulator_dev *dev,
- int min, int max, unsigned *selector)
+static int gpio_regulator_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned *selector)
{
struct gpio_regulator_data *data = rdev_get_drvdata(dev);
int ptr, target = 0, state, best_val = INT_MAX;
for (ptr = 0; ptr < data->nr_states; ptr++)
if (data->states[ptr].value < best_val &&
- data->states[ptr].value >= min &&
- data->states[ptr].value <= max) {
+ data->states[ptr].value >= min_uV &&
+ data->states[ptr].value <= max_uV) {
target = data->states[ptr].gpios;
best_val = data->states[ptr].value;
if (selector)
@@ -85,13 +86,6 @@ static int gpio_regulator_set_value(struct regulator_dev *dev,
return 0;
}
-static int gpio_regulator_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV,
- unsigned *selector)
-{
- return gpio_regulator_set_value(dev, min_uV, max_uV, selector);
-}
-
static int gpio_regulator_list_voltage(struct regulator_dev *dev,
unsigned selector)
{
@@ -106,7 +100,27 @@ static int gpio_regulator_list_voltage(struct regulator_dev *dev,
static int gpio_regulator_set_current_limit(struct regulator_dev *dev,
int min_uA, int max_uA)
{
- return gpio_regulator_set_value(dev, min_uA, max_uA, NULL);
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+ int ptr, target = 0, state, best_val = 0;
+
+ for (ptr = 0; ptr < data->nr_states; ptr++)
+ if (data->states[ptr].value > best_val &&
+ data->states[ptr].value >= min_uA &&
+ data->states[ptr].value <= max_uA) {
+ target = data->states[ptr].gpios;
+ best_val = data->states[ptr].value;
+ }
+
+ if (best_val == 0)
+ return -EINVAL;
+
+ for (ptr = 0; ptr < data->nr_gpios; ptr++) {
+ state = (target & (1 << ptr)) >> ptr;
+ gpio_set_value(data->gpios[ptr].gpio, state);
+ }
+ data->state = target;
+
+ return 0;
}
static struct regulator_ops gpio_regulator_voltage_ops = {
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