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authorSlark Xiao <slark_xiao@163.com>2024-07-01 10:12:15 +0800
committerManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2024-07-03 19:06:14 +0530
commit633478695d6b52e0b52f1273d8d11275b627b87d (patch)
treee9aedd6167df8fa7e4f94f5789688313093ef591
parentbf30a75e6e0001c3d473f2bf46d026eb0c4a0bd2 (diff)
downloadlwn-633478695d6b52e0b52f1273d8d11275b627b87d.tar.gz
lwn-633478695d6b52e0b52f1273d8d11275b627b87d.zip
bus: mhi: host: Allow controller drivers to specify name for the MHI controller
MHI devices usually have a product/device name to identify each device uniquely. So let's specify that name in 'struct mhi_controller' so that the client drivers can use this name to uniquely identify the devices and apply any device specific quirks. Signed-off-by: Slark Xiao <slark_xiao@163.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20240701021216.17734-2-slark_xiao@163.com [mani: reworked subject and description] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
-rw-r--r--drivers/bus/mhi/host/pci_generic.c1
-rw-r--r--include/linux/mhi.h2
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 1fb1c2f2fe12..14a11880bcea 100644
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -1086,6 +1086,7 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
mhi_cntrl->runtime_get = mhi_pci_runtime_get;
mhi_cntrl->runtime_put = mhi_pci_runtime_put;
mhi_cntrl->mru = info->mru_default;
+ mhi_cntrl->name = info->name;
if (info->edl_trigger)
mhi_cntrl->edl_trigger = mhi_pci_generic_edl_trigger;
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index b573f15762f8..fabd6ed8d258 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -290,6 +290,7 @@ struct mhi_controller_config {
/**
* struct mhi_controller - Master MHI controller structure
+ * @name: Device name of the MHI controller
* @cntrl_dev: Pointer to the struct device of physical bus acting as the MHI
* controller (required)
* @mhi_dev: MHI device instance for the controller
@@ -367,6 +368,7 @@ struct mhi_controller_config {
* they can be populated depending on the usecase.
*/
struct mhi_controller {
+ const char *name;
struct device *cntrl_dev;
struct mhi_device *mhi_dev;
struct dentry *debugfs_dentry;