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linux/drivers/net/wwan
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Kai-Heng Feng def67e27f2 net: wwan: t7xx: Ensure init is completed before system sleep 
[ Upstream commit ab87603b25 ]

When the system attempts to sleep while mtk_t7xx is not ready, the driver
cannot put the device to sleep:
[   12.472918] mtk_t7xx 0000:57:00.0: [PM] Exiting suspend, modem in invalid state
[   12.472936] mtk_t7xx 0000:57:00.0: PM: pci_pm_suspend(): t7xx_pci_pm_suspend+0x0/0x20 [mtk_t7xx] returns -14
[   12.473678] mtk_t7xx 0000:57:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1b0 returns -14
[   12.473711] mtk_t7xx 0000:57:00.0: PM: failed to suspend async: error -14
[   12.764776] PM: Some devices failed to suspend, or early wake event detected

Mediatek confirmed the device can take a rather long time to complete
its initialization, so wait for up to 20 seconds until init is done.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-06-09 10:34:15 +02:00
..
iosm net: wwan: iosm: fix NULL pointer dereference when removing device 2023-05-24 17:32:47 +01:00
t7xx net: wwan: t7xx: Ensure init is completed before system sleep 2023-06-09 10:34:15 +02:00
Kconfig net: wwan: iosm: fix driver not working with INTEL_IOMMU disabled 2022-11-09 14:00:25 +00:00
Makefile net: wwan: t7xx: Add core components 2022-05-09 10:51:59 +01:00
mhi_wwan_ctrl.c net: wwan: mhi_wwan_ctrl: Add DUN2 to have a secondary AT port 2022-09-20 16:07:12 -07:00
mhi_wwan_mbim.c net: wwan: mhi: fix memory leak in mhi_mbim_dellink 2022-11-07 09:38:04 +00:00
qcom_bam_dmux.c net: wwan: qcom_bam_dmux: fix wrong pointer passed to IS_ERR() 2022-03-22 09:36:46 +01:00
rpmsg_wwan_ctrl.c net: wwan: Allow WWAN drivers to provide blocking tx and poll function 2021-06-18 13:13:40 -07:00
wwan_core.c termios: get rid of non-UAPI asm/termios.h 2022-09-09 10:44:35 +02:00
wwan_hwsim.c wwan_hwsim: fix possible memory leak in wwan_hwsim_dev_new() 2022-10-19 17:25:10 -07:00