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path: root/drivers/usb/musb/musb_debugfs.c
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Diffstat (limited to 'drivers/usb/musb/musb_debugfs.c')
-rw-r--r--drivers/usb/musb/musb_debugfs.c111
1 files changed, 19 insertions, 92 deletions
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 952733ceaac8..5092d62c2062 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -1,34 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* MUSB OTG driver debugfs support
*
* Copyright 2010 Nokia Corporation
* Contact: Felipe Balbi <felipe.balbi@nokia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
*/
#include <linux/module.h>
@@ -64,7 +39,7 @@ static const struct musb_register_map musb_regmap[] = {
{ "IntrUsbE", MUSB_INTRUSBE, 8 },
{ "DevCtl", MUSB_DEVCTL, 8 },
{ "VControl", 0x68, 32 },
- { "HWVers", 0x69, 16 },
+ { "HWVers", MUSB_HWVERS, 16 },
{ "LinkInfo", MUSB_LINKINFO, 8 },
{ "VPLen", MUSB_VPLEN, 8 },
{ "HS_EOF1", MUSB_HS_EOF1, 8 },
@@ -95,7 +70,6 @@ static const struct musb_register_map musb_regmap[] = {
{ "DMA_CNTLch7", 0x274, 16 },
{ "DMA_ADDRch7", 0x278, 32 },
{ "DMA_COUNTch7", 0x27C, 32 },
-#ifndef CONFIG_BLACKFIN
{ "ConfigData", MUSB_CONFIGDATA,8 },
{ "BabbleCtl", MUSB_BABBLE_CTL,8 },
{ "TxFIFOsz", MUSB_TXFIFOSZ, 8 },
@@ -104,7 +78,6 @@ static const struct musb_register_map musb_regmap[] = {
{ "RxFIFOadd", MUSB_RXFIFOADD, 16 },
{ "EPInfo", MUSB_EPINFO, 8 },
{ "RAMInfo", MUSB_RAMINFO, 8 },
-#endif
{ } /* Terminating Entry */
};
@@ -133,15 +106,10 @@ static int musb_regdump_show(struct seq_file *s, void *unused)
}
}
- pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
return 0;
}
-
-static int musb_regdump_open(struct inode *inode, struct file *file)
-{
- return single_open(file, musb_regdump_show, inode->i_private);
-}
+DEFINE_SHOW_ATTRIBUTE(musb_regdump);
static int musb_test_mode_show(struct seq_file *s, void *unused)
{
@@ -150,7 +118,6 @@ static int musb_test_mode_show(struct seq_file *s, void *unused)
pm_runtime_get_sync(musb->controller);
test = musb_readb(musb->mregs, MUSB_TESTMODE);
- pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
if (test == (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS))
@@ -186,13 +153,6 @@ static int musb_test_mode_show(struct seq_file *s, void *unused)
return 0;
}
-static const struct file_operations musb_regdump_fops = {
- .open = musb_regdump_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int musb_test_mode_open(struct inode *inode, struct file *file)
{
return single_open(file, musb_test_mode_show, inode->i_private);
@@ -206,6 +166,11 @@ static ssize_t musb_test_mode_write(struct file *file,
u8 test;
char buf[24];
+ memset(buf, 0x00, sizeof(buf));
+
+ if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
pm_runtime_get_sync(musb->controller);
test = musb_readb(musb->mregs, MUSB_TESTMODE);
if (test) {
@@ -214,11 +179,6 @@ static ssize_t musb_test_mode_write(struct file *file,
goto ret;
}
- memset(buf, 0x00, sizeof(buf));
-
- if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
if (strstarts(buf, "force host full-speed"))
test = MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS;
@@ -254,7 +214,6 @@ static ssize_t musb_test_mode_write(struct file *file,
musb_writeb(musb->mregs, MUSB_TESTMODE, test);
ret:
- pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
return count;
}
@@ -273,7 +232,7 @@ static int musb_softconnect_show(struct seq_file *s, void *unused)
u8 reg;
int connect;
- switch (musb->xceiv->otg->state) {
+ switch (musb_get_state(musb)) {
case OTG_STATE_A_HOST:
case OTG_STATE_A_WAIT_BCON:
pm_runtime_get_sync(musb->controller);
@@ -281,7 +240,6 @@ static int musb_softconnect_show(struct seq_file *s, void *unused)
reg = musb_readb(musb->mregs, MUSB_DEVCTL);
connect = reg & MUSB_DEVCTL_SESSION ? 1 : 0;
- pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
break;
default:
@@ -313,7 +271,7 @@ static ssize_t musb_softconnect_write(struct file *file,
pm_runtime_get_sync(musb->controller);
if (!strncmp(buf, "0", 1)) {
- switch (musb->xceiv->otg->state) {
+ switch (musb_get_state(musb)) {
case OTG_STATE_A_HOST:
musb_root_disconnect(musb);
reg = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -324,7 +282,7 @@ static ssize_t musb_softconnect_write(struct file *file,
break;
}
} else if (!strncmp(buf, "1", 1)) {
- switch (musb->xceiv->otg->state) {
+ switch (musb_get_state(musb)) {
case OTG_STATE_A_WAIT_BCON:
/*
* musb_save_context() called in musb_runtime_suspend()
@@ -342,7 +300,6 @@ static ssize_t musb_softconnect_write(struct file *file,
}
}
- pm_runtime_mark_last_busy(musb->controller);
pm_runtime_put_autosuspend(musb->controller);
return count;
}
@@ -359,48 +316,18 @@ static const struct file_operations musb_softconnect_fops = {
.release = single_release,
};
-int musb_init_debugfs(struct musb *musb)
+void musb_init_debugfs(struct musb *musb)
{
- struct dentry *root;
- struct dentry *file;
- int ret;
-
- root = debugfs_create_dir(dev_name(musb->controller), NULL);
- if (!root) {
- ret = -ENOMEM;
- goto err0;
- }
-
- file = debugfs_create_file("regdump", S_IRUGO, root, musb,
- &musb_regdump_fops);
- if (!file) {
- ret = -ENOMEM;
- goto err1;
- }
-
- file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR,
- root, musb, &musb_test_mode_fops);
- if (!file) {
- ret = -ENOMEM;
- goto err1;
- }
-
- file = debugfs_create_file("softconnect", S_IRUGO | S_IWUSR,
- root, musb, &musb_softconnect_fops);
- if (!file) {
- ret = -ENOMEM;
- goto err1;
- }
+ struct dentry *root;
+ root = debugfs_create_dir(dev_name(musb->controller), usb_debug_root);
musb->debugfs_root = root;
- return 0;
-
-err1:
- debugfs_remove_recursive(root);
-
-err0:
- return ret;
+ debugfs_create_file("regdump", S_IRUGO, root, musb, &musb_regdump_fops);
+ debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, musb,
+ &musb_test_mode_fops);
+ debugfs_create_file("softconnect", S_IRUGO | S_IWUSR, root, musb,
+ &musb_softconnect_fops);
}
void /* __init_or_exit */ musb_exit_debugfs(struct musb *musb)
generated by cgit (git 2.34.1) at 2025-12-25 07:40:53 +0000