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bus: mhi: core: Use generic name field for an MHI device

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An MHI device is not necessarily associated with only channels as we can
have one associated with the controller itself. Hence, the chan_name
field within the mhi_device structure should instead be replaced with a
generic name to accurately reflect any type of MHI device.

Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200929175218.8178-7-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bhaumik Bhatt 2020-09-29 23:22:05 +05:30 committed by Greg Kroah-Hartman
parent 870f81bd28
commit 5aa93f0576
3 changed files with 10 additions and 9 deletions
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5
drivers/bus/mhi/core/init.c
View file

@ -904,6 +904,7 @@ int mhi_register_controller(struct mhi_controller *mhi_cntrl,
mhi_dev->dev_type = MHI_DEVICE_CONTROLLER;
mhi_dev->mhi_cntrl = mhi_cntrl;
dev_set_name(&mhi_dev->dev, "%s", dev_name(mhi_cntrl->cntrl_dev));
mhi_dev->name = dev_name(mhi_cntrl->cntrl_dev);
/* Init wakeup source */
device_init_wakeup(&mhi_dev->dev, true);
@ -1249,7 +1250,7 @@ static int mhi_uevent(struct device *dev, struct kobj_uevent_env *env)
struct mhi_device *mhi_dev = to_mhi_device(dev);
return add_uevent_var(env, "MODALIAS=" MHI_DEVICE_MODALIAS_FMT,
mhi_dev->chan_name);
mhi_dev->name);
}
static int mhi_match(struct device *dev, struct device_driver *drv)
@ -1266,7 +1267,7 @@ static int mhi_match(struct device *dev, struct device_driver *drv)
return 0;
for (id = mhi_drv->id_table; id->chan[0]; id++)
if (!strcmp(mhi_dev->chan_name, id->chan)) {
if (!strcmp(mhi_dev->name, id->chan)) {
mhi_dev->id = id;
return 1;
}

6
drivers/bus/mhi/core/main.c
View file

@ -249,7 +249,7 @@ int mhi_destroy_device(struct device *dev, void *data)
put_device(&mhi_dev->dl_chan->mhi_dev->dev);
dev_dbg(&mhi_cntrl->mhi_dev->dev, "destroy device for chan:%s\n",
mhi_dev->chan_name);
mhi_dev->name);
/* Notify the client and remove the device from MHI bus */
device_del(dev);
@ -327,10 +327,10 @@ void mhi_create_devices(struct mhi_controller *mhi_cntrl)
}
/* Channel name is same for both UL and DL */
mhi_dev->chan_name = mhi_chan->name;
mhi_dev->name = mhi_chan->name;
dev_set_name(&mhi_dev->dev, "%s_%s",
dev_name(mhi_cntrl->cntrl_dev),
mhi_dev->chan_name);
mhi_dev->name);
/* Init wakeup source if available */
if (mhi_dev->dl_chan && mhi_dev->dl_chan->wake_capable)

8
include/linux/mhi.h
View file

@ -438,10 +438,10 @@ struct mhi_controller {
};
/**
* struct mhi_device - Structure representing a MHI device which binds
* to channels
* struct mhi_device - Structure representing an MHI device which binds
* to channels or is associated with controllers
* @id: Pointer to MHI device ID struct
* @chan_name: Name of the channel to which the device binds
* @name: Name of the associated MHI device
* @mhi_cntrl: Controller the device belongs to
* @ul_chan: UL channel for the device
* @dl_chan: DL channel for the device
@ -453,7 +453,7 @@ struct mhi_controller {
*/
struct mhi_device {
const struct mhi_device_id *id;
const char *chan_name;
const char *name;
struct mhi_controller *mhi_cntrl;
struct mhi_chan *ul_chan;
struct mhi_chan *dl_chan;