lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-ID: <CAOMZO5AWRDLu5t0O=AG7CxNLv20HTmMTRh=so=s7+nTH0_qYgQ@mail.gmail.com> Date: Mon, 12 Dec 2022 16:01:25 -0300 From: Fabio Estevam <festevam@...il.com> To: bjorn@...k.no, Peter Chen <peter.chen@...nel.org>, Marek Vasut <marex@...x.de>, Li Jun <jun.li@....com> Cc: netdev <netdev@...r.kernel.org>, USB list <linux-usb@...r.kernel.org>, Alexander Stein <alexander.stein@...tq-group.com>, Schrempf Frieder <frieder.schrempf@...tron.de> Subject: Re: imx7: USB modem reset causes modem to not re-connect On Mon, Dec 12, 2022 at 3:10 PM Fabio Estevam <festevam@...il.com> wrote: > > Hi, > > On an imx7d-based board running kernel 5.10.158, I noticed that a > Quectel BG96 modem is gone after sending a reset command via AT: Disabling runtime pm like this: diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index 9ffcecd3058c..e2a263d583f9 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -62,7 +62,6 @@ static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = { }; static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = { - .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, }; static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = { makes the USB modem to stay connected after the reset command: # microcom /dev/ttyUSB3 >AT+CFUN=1,1 OK [ 31.339416] usb 2-1: USB disconnect, device number 2 [ 31.349480] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 [ 31.358298] option 2-1:1.0: device disconnected [ 31.366390] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 31.374883] option 2-1:1.1: device disconnected [ 31.383359] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2 [ 31.391800] option 2-1:1.2: device disconnected [ 31.404700] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3 # [ 31.413261] option 2-1:1.3: device disconnected [ 36.151388] usb 2-1: new high-speed USB device number 3 using ci_hdrc [ 36.354398] usb 2-1: New USB device found, idVendor=2c7c, idProduct=0296, bcdDevice= 0.00 [ 36.362768] usb 2-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4 [ 36.370031] usb 2-1: Product: Qualcomm CDMA Technologies MSM [ 36.375818] usb 2-1: Manufacturer: Qualcomm, Incorporated [ 36.381355] usb 2-1: SerialNumber: 7d1563c1 [ 36.389915] option 2-1:1.0: GSM modem (1-port) converter detected [ 36.397679] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0 [ 36.412591] option 2-1:1.1: GSM modem (1-port) converter detected [ 36.420237] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1 [ 36.434988] option 2-1:1.2: GSM modem (1-port) converter detected [ 36.442792] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB2 [ 36.457745] option 2-1:1.3: GSM modem (1-port) converter detected [ 36.465709] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB3 Does anyone have any suggestions as to what could be the problem with runtime pm?
Powered by blists - more mailing lists