Merge "leds: qpnp-wled: avoid false ovp on module enable" (0aeb15f8) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/leds/leds-qpnp-wled.c

+34 −6

Original line number	Diff line number	Diff line
		@@ -40,7 +40,8 @@
		#define QPNP_WLED_OVP_REG(b) (b + 0x4D)
		#define QPNP_WLED_ILIM_REG(b) (b + 0x4E)
		#define QPNP_WLED_SC_PRO_REG(b) (b + 0x5E)
		#define QPNP_WLED_TEST_REG(b) (b + 0xE2)
		#define QPNP_WLED_TEST1_REG(b) (b + 0xE2)
		#define QPNP_WLED_TEST3_REG(b) (b + 0xE4)

		#define QPNP_WLED_EN_MASK 0x7F
		#define QPNP_WLED_EN_SHIFT 7
		@@ -69,6 +70,9 @@
		#define QPNP_WLED_OVP_19400_MV 19400
		#define QPNP_WLED_OVP_29500_MV 29500
		#define QPNP_WLED_OVP_31000_MV 31000
		#define QPNP_WLED_TEST3_OVP_DIS 0x1F
		#define QPNP_WLED_TEST3_OVP_EN 0x3F
		#define QPNP_WLED_TEST3_OVP_DLY_US 100

		/* sink registers */
		#define QPNP_WLED_CURR_SINK_REG(b) (b + 0x46)
		@@ -199,8 +203,6 @@ static u8 qpnp_wled_sink_dbg_regs[] = {
		* @ sc_cnt - short circuit irq count
		* @ ctrl_base - base address for wled ctrl
		* @ sink_base - base address for wled sink
		* @ ibb_base - base address for IBB(Inverting Buck Boost)
		* @ lab_base - base address for LAB(LCD/AMOLED Boost)
		* @ mod_freq_khz - modulator frequency in KHZ
		* @ hyb_thres - threshold for hybrid dimming
		* @ sync_dly_us - sync delay in us
		@@ -219,8 +221,6 @@ static u8 qpnp_wled_sink_dbg_regs[] = {
		* @ en_phase_stag - enable or disable phase staggering
		* @ en_cabc - enable or disable cabc
		* @ disp_type_amoled - type of display: LCD/AMOLED
		* @ ibb_bias_active - activate display bias
		* @ lab_fast_precharge - fast/slow precharge
		* @ en_ext_pfet_sc_pro - enable sc protection on external pfet
		*/
		struct qpnp_wled {
		@@ -349,6 +349,19 @@ static int qpnp_wled_module_en(struct qpnp_wled *wled,
		int rc;
		u8 reg;

		/* false OVP can be generated when module is enabled so disable it*/
		if (state) {
		rc = qpnp_wled_sec_access(wled, base_addr);
		if (rc)
		return rc;

		reg = QPNP_WLED_TEST3_OVP_DIS;
		rc = qpnp_wled_write_reg(wled, &reg,
		QPNP_WLED_TEST3_REG(base_addr));
		if (rc)
		return rc;
		}

		rc = qpnp_wled_read_reg(wled, &reg,
		QPNP_WLED_MODULE_EN_REG(base_addr));
		if (rc < 0)
		@@ -360,6 +373,21 @@ static int qpnp_wled_module_en(struct qpnp_wled *wled,
		if (rc)
		return rc;

		/* enable OVP */
		if (state) {
		usleep_range(QPNP_WLED_TEST3_OVP_DLY_US,
		QPNP_WLED_TEST3_OVP_DLY_US + 1);
		rc = qpnp_wled_sec_access(wled, base_addr);
		if (rc)
		return rc;

		reg = QPNP_WLED_TEST3_OVP_EN;
		rc = qpnp_wled_write_reg(wled, &reg,
		QPNP_WLED_TEST3_REG(base_addr));
		if (rc)
		return rc;
		}

		return 0;
		}

		@@ -1119,7 +1147,7 @@ static int qpnp_wled_config(struct qpnp_wled *wled)

		reg = QPNP_WLED_EXT_FET_DTEST2;
		rc = qpnp_wled_write_reg(wled, &reg,
		QPNP_WLED_TEST_REG(wled->ctrl_base));
		QPNP_WLED_TEST1_REG(wled->ctrl_base));
		if (rc)
		return rc;
		}