Piteball/android_kernel_samsung_msm8976
1
1
Fork 0
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git synced 2024-09-21 11:53:01 +00:00
Code Issues Projects Releases Wiki Activity

leds: leds-qpnp: Add flash_wa regulator support in flash led driver

Browse source 
Add flash_wa regulator support in flash led driver. The regulator raise
the SMBB over temperature threshold before flash enabled, and restore to
default setting after flash disable.

CRs-Fixed: 697457
Change-Id: I3f376be749704b2c34c3ee99b4c155d28ad2b6b5
Signed-off-by: Chunmei Cai <ccai@codeaurora.org>
This commit is contained in:
Chunmei Cai 2014-08-06 12:37:28 +08:00
parent 6b8f1a9f41
commit f0a54ff948
2 changed files with 35 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
Documentation/devicetree/bindings/leds/leds-qpnp.txt
View file

@ -51,6 +51,7 @@ Optional properties for flash:
- qcom,no-smbb-support: Specify if smbb boost is not required and there is a single regulator for both flash and torch.
- flash-boost-supply: SMBB regulator for LED flash mode
- torch-boost-supply: SMBB regulator for LED torch mode
- flash-wa-supply: SMBB regulator for flash workarounds.
RGB Led is a tri-colored led, Red, Blue & Green.

34
drivers/leds/leds-qpnp.c
View file

@ -443,6 +443,7 @@ struct mpp_config_data {
single regulator for both flash and torch
* @flash_boost_reg - boost regulator for flash
* @torch_boost_reg - boost regulator for torch
* @flash_wa_reg - flash regulator for wa
*/
struct flash_config_data {
u8 current_prgm;
@ -465,6 +466,7 @@ struct flash_config_data {
bool no_smbb_support;
struct regulator *flash_boost_reg;
struct regulator *torch_boost_reg;
struct regulator *flash_wa_reg;
};
/**
@ -1117,6 +1119,15 @@ static int qpnp_flash_regulator_operate(struct qpnp_led_data *led, bool on)
if (!regulator_on && !led->flash_cfg->flash_on) {
for (i = 0; i < led->num_leds; i++) {
if (led_array[i].flash_cfg->flash_reg_get) {
rc = regulator_enable(
led_array[i].flash_cfg->flash_wa_reg);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Flash_wa regulator enable failed(%d)\n",
rc);
return rc;
}
rc = regulator_enable(
led_array[i].flash_cfg->\
flash_boost_reg);
@ -1156,6 +1167,14 @@ regulator_turn_off:
rc);
return rc;
}
rc = regulator_disable(
led_array[i].flash_cfg->flash_wa_reg);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Flash_wa regulator disable failed(%d)\n",
rc);
return rc;
}
led->flash_cfg->flash_on = false;
}
break;
@ -3075,6 +3094,21 @@ static int qpnp_get_config_flash(struct qpnp_led_data *led,
led->flash_cfg->no_smbb_support =
of_property_read_bool(node, "qcom,no-smbb-support");
if (of_find_property(of_get_parent(node), "flash-wa-supply",
NULL) && (!*reg_set)) {
led->flash_cfg->flash_wa_reg =
devm_regulator_get(&led->spmi_dev->dev,
"flash-wa");
if (IS_ERR_OR_NULL(led->flash_cfg->flash_wa_reg)) {
rc = PTR_ERR(led->flash_cfg->flash_wa_reg);
if (rc != EPROBE_DEFER) {
dev_err(&led->spmi_dev->dev,
"Falsh wa regulator get failed(%d)\n",
rc);
}
}
}
if (led->id == QPNP_ID_FLASH1_LED0) {
led->flash_cfg->enable_module = FLASH_ENABLE_LED_0;
led->flash_cfg->current_addr = FLASH_LED_0_CURR(led->base);