From: Bhaumik Bhatt <bbhatt@codeaurora.org>
To: manivannan.sadhasivam@linaro.org
Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org,
jhugo@codeaurora.org, linux-kernel@vger.kernel.org,
Bhaumik Bhatt <bbhatt@codeaurora.org>
Subject: [PATCH v5 05/10] bus: mhi: core: Use generic name field for an MHI device
Date: Thu, 23 Jul 2020 15:36:37 -0700 [thread overview]
Message-ID: <1595543802-17859-6-git-send-email-bbhatt@codeaurora.org> (raw)
In-Reply-To: <1595543802-17859-1-git-send-email-bbhatt@codeaurora.org>
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.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
drivers/bus/mhi/core/init.c | 5 +++--
drivers/bus/mhi/core/main.c | 6 +++---
include/linux/mhi.h | 8 ++++----
3 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index e43a190..e2011ec 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -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;
}
diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
index 79be18e..2cff5dd 100644
--- a/drivers/bus/mhi/core/main.c
+++ b/drivers/bus/mhi/core/main.c
@@ -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)
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index b008914..7ed785e 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -436,10 +436,10 @@ 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
@@ -451,7 +451,7 @@ 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;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2020-07-23 22:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 22:36 [PATCH v5 00/10] Introduce features and debugfs/sysfs entries for MHI Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 01/10] bus: mhi: core: Remove double occurrence for mhi_ctrl_ev_task() declaration Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 02/10] bus: mhi: core: Abort suspends due to outgoing pending packets Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 03/10] bus: mhi: core: Use helper API to trigger a non-blocking host resume Bhaumik Bhatt
2020-07-24 6:09 ` Manivannan Sadhasivam
2020-07-23 22:36 ` [PATCH v5 04/10] bus: mhi: core: Trigger host resume if suspended during mhi_device_get() Bhaumik Bhatt
2020-07-23 22:36 ` Bhaumik Bhatt [this message]
2020-07-23 22:36 ` [PATCH v5 06/10] bus: mhi: core: Introduce helper function to check device state Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 07/10] bus: mhi: core: Introduce debugfs entries for MHI Bhaumik Bhatt
2020-07-24 4:11 ` kernel test robot
2020-07-24 23:46 ` kernel test robot
2020-07-23 22:36 ` [PATCH v5 08/10] bus: mhi: core: Use counters to track MHI device state transitions Bhaumik Bhatt
2020-07-24 5:24 ` Manivannan Sadhasivam
2020-07-23 22:36 ` [PATCH v5 09/10] bus: mhi: core: Read and save device hardware information from BHI Bhaumik Bhatt
2020-07-23 22:36 ` [PATCH v5 10/10] bus: mhi: core: Introduce sysfs entries for MHI Bhaumik Bhatt
2020-07-24 5:42 ` Manivannan Sadhasivam
2020-07-28 0:29 ` bbhatt
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