41 lines
1.3 KiB
Diff
41 lines
1.3 KiB
Diff
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From 65e4130644cd535da7cabfc6309897596bddf240 Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megous@megous.com>
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Date: Mon, 28 Sep 2020 19:00:35 +0200
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Subject: [PATCH 271/478] misc: modem-power: Modem reset is broken with fast
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poweroff enabled
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Disable fast poweroff for the duration of the reset after QDAI
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change.
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Signed-off-by: Ondrej Jirman <megous@megous.com>
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---
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drivers/misc/modem-power.c | 12 +++++++++++-
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1 file changed, 11 insertions(+), 1 deletion(-)
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diff --git a/drivers/misc/modem-power.c b/drivers/misc/modem-power.c
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index d80eb9dacf7b..1f5bfe104463 100644
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--- a/drivers/misc/modem-power.c
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+++ b/drivers/misc/modem-power.c
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@@ -554,7 +554,17 @@ static int mpwr_eg25_power_up(struct mpwr_dev* mpwr)
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/* reset the modem, to apply QDAI config if necessary */
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if (needs_restart) {
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- mpwr_serdev_at_cmd(mpwr, "AT+CFUN=1,1", 15000);
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+ dev_info(mpwr->dev, "Restarting modem\n");
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+
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+ /* reboot is broken with fastboot enabled */
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+ mpwr_serdev_at_cmd(mpwr, "AT+QCFG=\"fast/poweroff\",0", 5000);
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+
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+ ret = mpwr_serdev_at_cmd(mpwr, "AT+CFUN=1,1", 5000);
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+ if (ret)
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+ goto err_shutdown;
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+
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+ /* wait a bit before starting to probe the modem again */
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+ msleep(6000);
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ret = mpwr_serdev_at_cmd_with_retry_ignore_timeout(mpwr, "AT&FE0", 1000, 30);
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if (ret)
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--
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2.35.3
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