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leds: qpnp-flash-v2: Change minimum current configuration

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Change minimum current configuration from hard coded value to
based on current resolution step.

CRs-Fixed: 2014773
Change-Id: I69d6f2af032495a263d3d41a0569efe0acf0ce72
Signed-off-by: Ankit Sharma <ansharma@codeaurora.org>
This commit is contained in:
Ankit Sharma 2017-04-06 15:44:09 +05:30
parent 272879fc1f
commit 2ec2b87f23
1 changed files with 10 additions and 10 deletions
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20
drivers/leds/leds-qpnp-flash-v2.c
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@ -152,7 +152,6 @@
#define FLASH_LED_MOD_ENABLE BIT(7) #define FLASH_LED_MOD_ENABLE BIT(7)
#define FLASH_LED_DISABLE 0x00 #define FLASH_LED_DISABLE 0x00
#define FLASH_LED_SAFETY_TMR_DISABLED 0x13 #define FLASH_LED_SAFETY_TMR_DISABLED 0x13
#define FLASH_LED_MIN_CURRENT_MA 25
#define FLASH_LED_MAX_TOTAL_CURRENT_MA 3750 #define FLASH_LED_MAX_TOTAL_CURRENT_MA 3750
/* notifier call chain for flash-led irqs */ /* notifier call chain for flash-led irqs */
@ -879,11 +878,12 @@ static int qpnp_flash_led_get_max_avail_current(struct qpnp_flash_led *led)
static void qpnp_flash_led_node_set(struct flash_node_data *fnode, int value) static void qpnp_flash_led_node_set(struct flash_node_data *fnode, int value)
{ {
int prgm_current_ma = value; int prgm_current_ma = value;
int min_ma = fnode->ires_ua / 1000;
if (value <= 0) if (value <= 0)
prgm_current_ma = 0; prgm_current_ma = 0;
else if (value < FLASH_LED_MIN_CURRENT_MA) else if (value < min_ma)
prgm_current_ma = FLASH_LED_MIN_CURRENT_MA; prgm_current_ma = min_ma;
prgm_current_ma = min(prgm_current_ma, fnode->max_current); prgm_current_ma = min(prgm_current_ma, fnode->max_current);
fnode->current_ma = prgm_current_ma; fnode->current_ma = prgm_current_ma;
@ -1335,7 +1335,7 @@ static int qpnp_flash_led_parse_each_led_dt(struct qpnp_flash_led *led,
struct flash_node_data *fnode, struct device_node *node) struct flash_node_data *fnode, struct device_node *node)
{ {
const char *temp_string; const char *temp_string;
int rc; int rc, min_ma;
u32 val; u32 val;
bool strobe_sel = 0, edge_trigger = 0, active_high = 0; bool strobe_sel = 0, edge_trigger = 0, active_high = 0;
@ -1391,10 +1391,11 @@ static int qpnp_flash_led_parse_each_led_dt(struct qpnp_flash_led *led,
return rc; return rc;
} }
min_ma = fnode->ires_ua / 1000;
rc = of_property_read_u32(node, "qcom,max-current", &val); rc = of_property_read_u32(node, "qcom,max-current", &val);
if (!rc) { if (!rc) {
if (val < FLASH_LED_MIN_CURRENT_MA) if (val < min_ma)
val = FLASH_LED_MIN_CURRENT_MA; val = min_ma;
fnode->max_current = val; fnode->max_current = val;
fnode->cdev.max_brightness = val; fnode->cdev.max_brightness = val;
} else { } else {
@ -1404,11 +1405,10 @@ static int qpnp_flash_led_parse_each_led_dt(struct qpnp_flash_led *led,
rc = of_property_read_u32(node, "qcom,current-ma", &val); rc = of_property_read_u32(node, "qcom,current-ma", &val);
if (!rc) { if (!rc) {
if (val < FLASH_LED_MIN_CURRENT_MA || if (val < min_ma || val > fnode->max_current)
val > fnode->max_current)
pr_warn("Invalid operational current specified, capping it\n"); pr_warn("Invalid operational current specified, capping it\n");
if (val < FLASH_LED_MIN_CURRENT_MA) if (val < min_ma)
val = FLASH_LED_MIN_CURRENT_MA; val = min_ma;
if (val > fnode->max_current) if (val > fnode->max_current)
val = fnode->max_current; val = fnode->max_current;
fnode->current_ma = val; fnode->current_ma = val;