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Commit de264826 authored by Kiran Gunda's avatar Kiran Gunda Committed by Gerrit - the friendly Code Review server
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backlight: qcom-spmi-wled: Force HFRC off when WLED is disabled 



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

Change-Id: Iff1df47fd26a620664087eb4c9140cc4e45251bc
Signed-off-by: default avatarKiran Gunda <kgunda@codeaurora.org>
parent 9a469b26

drivers/video/backlight/qcom-spmi-wled.c

+21 −0
Original line number Diff line number Diff line
@@ -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