From de8ea07a5687e8c2868e3f72f3e390ddcdcabd8b Mon Sep 17 00:00:00 2001 From: Krishna Chaitanya Chundru Date: Fri, 25 Sep 2026 10:07:43 +0530 Subject: [PATCH] FROMLIST: bus: mhi: host: pci_generic: Add DUN channel configuration MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the DUN uplink (ch32) and downlink (ch33) channel definitions to the Qualcomm modem MHI channel configuration table.   These channels are used for transporting AT commands over MHI. Defining them allows the MHI core to create the corresponding DUN MHI devices and enables userspace access to the modem AT interface through the associated client driver. Signed-off-by: Krishna Chaitanya Chundru Link: https://lore.kernel.org/all/20260925-mhi_dun-v1-1-65bc07ec8a59@oss.qualcomm.com/ Signed-off-by: Ziyue Zhang --- drivers/bus/mhi/host/pci_generic.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c index 750da3dbb4c6e..eb5dce4717356 100644 --- a/drivers/bus/mhi/host/pci_generic.c +++ b/drivers/bus/mhi/host/pci_generic.c @@ -322,6 +322,8 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = { MHI_CHANNEL_CONFIG_DL(15, "QMI", 4, 0), MHI_CHANNEL_CONFIG_UL(20, "IPCR", 8, 0), MHI_CHANNEL_CONFIG_DL(21, "IPCR", 8, 0), + MHI_CHANNEL_CONFIG_UL(32, "DUN", 32, 0), + MHI_CHANNEL_CONFIG_DL(33, "DUN", 32, 0), MHI_CHANNEL_CONFIG_UL_FP(34, "FIREHOSE", 32, 0), MHI_CHANNEL_CONFIG_DL_FP(35, "FIREHOSE", 32, 0), MHI_CHANNEL_CONFIG_UL(46, "IP_SW0", 64, 2),