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phy: cpcap-usb: Fix flakey host idling and enumerating of devices

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We must let the USB host idle things properly before we switch to debug
UART mode. Otherwise the USB host may never idle after disconnecting
devices, and that causes the next enumeration to be flakey.

Cc: Jacopo Mondi <jacopo@jmondi.org>
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Michael Scott <hashcode0f@gmail.com>
Cc: NeKit <nekit1000@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Fixes: 6d6ce40f63 ("phy: cpcap-usb: Add CPCAP PMIC USB support")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Tony Lindgren 2019-12-22 10:00:19 -08:00 committed by Kishon Vijay Abraham I
parent cd217ee686
commit 049226b9fd
1 changed files with 2 additions and 2 deletions
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4
drivers/phy/motorola/phy-cpcap-usb.c
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@ -283,13 +283,13 @@ static void cpcap_usb_detect(struct work_struct *work)
return;
}
cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_OFF);
/* Default to debug UART mode */
error = cpcap_usb_set_uart_mode(ddata);
if (error)
goto out_err;
cpcap_usb_try_musb_mailbox(ddata, MUSB_VBUS_OFF);
dev_dbg(ddata->dev, "set UART mode\n");
return;