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net: wwan: iosm: fixes 7560 modem crash

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ModemManger/Apps probing the wwan0xmmrpc0 port for 7560 Modem results in
modem crash.

7560 Modem FW uses the MBIM interface for control command communication
whereas 7360 uses Intel RPC interface so disable wwan0xmmrpc0 port for
7560.

Fixes: d08b0f8f46 ("net: wwan: iosm: add rpc interface for xmm modems")
Reported-and-tested-by: Martin <mwolf@adiumentum.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217200
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: Shane Parslow <shaneparslow808@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
M Chetan Kumar 2023-03-28 11:58:44 +05:30 committed by David S. Miller
parent 07b3af42d8
commit 5f70bcbca4
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wwan/iosm/iosm_ipc_imem.c
View file

@ -587,6 +587,13 @@ static void ipc_imem_run_state_worker(struct work_struct *instance)
while (ctrl_chl_idx < IPC_MEM_MAX_CHANNELS) {
if (!ipc_chnl_cfg_get(&chnl_cfg_port, ctrl_chl_idx)) {
ipc_imem->ipc_port[ctrl_chl_idx] = NULL;
if (ipc_imem->pcie->pci->device == INTEL_CP_DEVICE_7560_ID &&
chnl_cfg_port.wwan_port_type == WWAN_PORT_XMMRPC) {
ctrl_chl_idx++;
continue;
}
if (ipc_imem->pcie->pci->device == INTEL_CP_DEVICE_7360_ID &&
chnl_cfg_port.wwan_port_type == WWAN_PORT_MBIM) {
ctrl_chl_idx++;