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backlight: qcom-spmi-wled: Force HFRC off when WLED is disabled

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Apply the configuration to force HFRC off when WLED module
is disabled.

Change-Id: Iff1df47fd26a620664087eb4c9140cc4e45251bc
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
This commit is contained in:
Kiran Gunda 2020-08-12 19:19:55 +05:30 • committed by Gerrit - the friendly Code Review server
commit de264826a9
1 changed files with 21 additions and 0 deletions
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21
drivers/video/backlight/qcom-spmi-wled.c
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@ -120,6 +120,8 @@
#define WLED5_CTRL_TEST4_REG 0xe5
#define WLED5_TEST4_EN_SH_SS BIT(5)
#define WLED5_CTRL_PBUS_WRITE_SYNC_CTL 0xef
/* WLED5 specific sink registers */
#define WLED5_SINK_MOD_A_EN_REG 0x50
#define WLED5_SINK_MOD_B_EN_REG 0x60
@ -306,15 +308,34 @@ static inline bool is_wled5(struct wled *wled)
static int wled_module_enable(struct wled *wled, int val)
{
int rc;
int reg;
if (wled->force_mod_disable)
return 0;
/* Force HFRC off */
if (*wled->version == WLED_PM8150L) {
reg = val ? 0 : 3;
rc = regmap_write(wled->regmap, wled->ctrl_addr +
WLED5_CTRL_PBUS_WRITE_SYNC_CTL, reg);
if (rc < 0)
return rc;
}
rc = regmap_update_bits(wled->regmap, wled->ctrl_addr +
WLED_CTRL_MOD_ENABLE, WLED_CTRL_MOD_EN_MASK,
val << WLED_CTRL_MODULE_EN_SHIFT);
if (rc < 0)
return rc;
/* Force HFRC off */
if (*wled->version == WLED_PM8150L && val) {
rc = regmap_write(wled->regmap, wled->sink_addr +
WLED5_SINK_FLASH_SHDN_CLR_REG, 0);
if (rc < 0)
return rc;
}
/*
* Wait for at least 10ms before enabling OVP fault interrupt after
* enabling the module so that soft start is completed. Keep the OVP