Commit 635dca1f authored Jan 27, 2017 by Nicholas Troast

smb-lib: fix unknown APSD result after CC2 workaround



If APSD is triggered while APSD is disabled the APSD_RESULT_STATUS
register will be reset. APSD will trigger whenever both VBUS and CC
have been debounced. This includes when VBUS is stable and CC is
re-asserted.

This is an issue particularly when the CC2 workaround re-asserts CC
when PD performs a hard reset since APSD will be disabled.

Fix this by configuring APSD to trigger only on VBUS before CC is
re-asserted by the CC2 workaround.

Change-Id: I507646faaab7aafeedb4104ad0ad5c32970270a6
Signed-off-by: Nicholas Troast <ntroast@codeaurora.org>

parent 314869eb

drivers/power/supply/qcom/smb-lib.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -2314,6 +2314,12 @@ int smblib_reg_block_restore(struct smb_charger *chg,
		}

		static struct reg_info cc2_detach_settings[] = {
		{
		.reg = TYPE_C_CFG_REG,
		.mask = APSD_START_ON_CC_BIT,
		.val = 0,
		.desc = "TYPE_C_CFG_REG",
		},
		{
		.reg = TYPE_C_CFG_2_REG,
		.mask = TYPE_C_UFP_MODE_BIT \| EN_TRY_SOURCE_MODE_BIT,