Piteball
/
android_kernel_samsung_msm8976
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
1
1
Fork 0
Code Issues Projects Releases Wiki Activity

leds: qpnp-wled: enable OVP irq properly in WLED driver 

Enable OVP irq properly in WLED driver only when WLED state
is changed to ON and ovp_irq support is enabled.
Plus, disable the ovp_irq before dis/enabling the WLED
module by writing to QPNP_WLED_INT_EN_CLR WLED register.

Change-Id: I75fa040c6e6f0e6ee40ec3e931c654f2c27ffcaf
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
This commit is contained in:
Shantanu Jain 2016-02-02 15:38:11 +05:30
parent 322bf4d337
commit 00424d93a7
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/leds/leds-qpnp-wled.c
View File

@ -33,6 +33,7 @@
/* ctrl registers */
#define QPNP_WLED_INT_EN_SET(b) (b + 0x15)
#define QPNP_WLED_INT_EN_CLR(b) (b + 0x16)
#define QPNP_WLED_EN_REG(b) (b + 0x46)
#define QPNP_WLED_FDBK_OP_REG(b) (b + 0x48)
#define QPNP_WLED_VREF_REG(b) (b + 0x49)
@ -101,7 +102,6 @@
#define QPNP_WLED_OVP_31000_MV 31000
#define QPNP_WLED_TEST4_EN_VREF_UP 0x32
#define QPNP_WLED_TEST4_EN_IIND_UP 0x1
#define QPNP_WLED_INT_EN_SET_OVP_DIS 0x00
#define QPNP_WLED_INT_EN_SET_OVP_EN 0x02
#define QPNP_WLED_OVP_FLT_SLEEP_US 10
@ -417,9 +417,9 @@ static int qpnp_wled_module_en(struct qpnp_wled *wled,
/* disable OVP fault interrupt */
if (state) {
reg = QPNP_WLED_INT_EN_SET_OVP_DIS;
reg = QPNP_WLED_INT_EN_SET_OVP_EN;
rc = qpnp_wled_write_reg(wled, &reg,
QPNP_WLED_INT_EN_SET(base_addr));
QPNP_WLED_INT_EN_CLR(base_addr));
if (rc)
return rc;
}
@ -436,7 +436,7 @@ static int qpnp_wled_module_en(struct qpnp_wled *wled,
return rc;
/* enable OVP fault interrupt */
if (state) {
if (state && (wled->ovp_irq > 0)) {
udelay(QPNP_WLED_OVP_FLT_SLEEP_US);
reg = QPNP_WLED_INT_EN_SET_OVP_EN;
rc = qpnp_wled_write_reg(wled, &reg,