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Commit 1d41107f authored by Abhijeet Dharmapurikar's avatar Abhijeet Dharmapurikar Committed by Harry Yang
Browse files

qpnp-qnovo: check ptrain_en in restart work 



Sometimes we observe that the ptrain_en bit is reset back to 0 while
in restart work.

Set it again if so.

Change-Id: I15d46f96a8b751f0386677e3b6876eec8bba9a1f
Signed-off-by: default avatarAbhijeet Dharmapurikar <adharmap@codeaurora.org>
parent 379c70e3

drivers/power/supply/qcom/qpnp-qnovo.c

+20 −0
Original line number Diff line number Diff line
@@ -1333,6 +1333,26 @@ static void ptrain_restart_work(struct work_struct *work) 
				struct qnovo, ptrain_restart_work.work);

	u8 pt_t1, pt_t2;

	int rc;

	u8 pt_en;



	rc = qnovo_read(chip, QNOVO_PTRAIN_EN, &pt_en, 1);

	if (rc < 0) {

		dev_err(chip->dev, "Couldn't read QNOVO_PTRAIN_EN rc = %d\n",

				rc);

		goto clean_up;

	}



	if (!pt_en) {

		rc = qnovo_masked_write(chip, QNOVO_PTRAIN_EN,

				QNOVO_PTRAIN_EN_BIT, QNOVO_PTRAIN_EN_BIT);

		if (rc < 0) {

			dev_err(chip->dev, "Couldn't enable pulse train rc=%d\n",

					rc);

			goto clean_up;

		}

		/* sleep 20ms for the pulse trains to restart and settle */

		msleep(20);

	}



	rc = qnovo_read(chip, QNOVO_PTTIME_STS, &pt_t1, 1);

	if (rc < 0) {