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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 15:50:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 15:50:46 -0700
commita481991467d38afb43c3921d5b5b59ccb61b04ba (patch)
treea4b0b9a14da6fd5ef7b9b512bb32dbfcfcf2cd71 /drivers/usb/misc/emi62.c
parentf6a26ae7699416d86bea8cb68ce413571e9cab3c (diff)
parentcda4db53e9c28061c100400e1a4d273ea61dfba9 (diff)
Merge tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB 3.5-rc1 changes from Greg Kroah-Hartman: "Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window. It's touches a lot of different parts of the kernel, all USB drivers, due to some API cleanups (getting rid of the ancient err() macro) and some changes that are needed for USB 3.0 power management updates. There are also lots of new drivers, pimarily gadget, but others as well. We deleted a staging driver, which was nice, and finally dropped the obsolete usbfs code, which will make Al happy to never have to touch that again. There were some build errors in the tree that linux-next found a few days ago, but those were fixed by the most recent changes (all were due to us not building with CONFIG_PM disabled.) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (477 commits) xhci: Fix DIV_ROUND_UP compile error. xhci: Fix compile with CONFIG_USB_SUSPEND=n USB: Fix core compile with CONFIG_USB_SUSPEND=n brcm80211: Fix compile error for .disable_hub_initiated_lpm. Revert "USB: EHCI: work around bug in the Philips ISP1562 controller" MAINTAINERS: Add myself as maintainer to the USB PHY Layer USB: EHCI: fix command register configuration lost problem USB: Remove races in devio.c USB: ehci-platform: remove update_device USB: Disable hub-initiated LPM for comms devices. xhci: Add Intel U1/U2 timeout policy. xhci: Add infrastructure for host-specific LPM policies. USB: Add macros for interrupt endpoint types. xhci: Reserve one command for USB3 LPM disable. xhci: Some Evaluate Context commands must succeed. USB: Disable USB 3.0 LPM in critical sections. USB: Add support to enable/disable USB3 link states. USB: Allow drivers to disable hub-initiated LPM. USB: Calculate USB 3.0 exit latencies for LPM. USB: Refactor code to set LPM support flag. ... Conflicts: arch/arm/mach-exynos/mach-nuri.c arch/arm/mach-exynos/mach-universal_c210.c drivers/net/wireless/ath/ath6kl/usb.c
Diffstat (limited to 'drivers/usb/misc/emi62.c')
-rw-r--r--drivers/usb/misc/emi62.c62
1 files changed, 19 insertions, 43 deletions
diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c
index 4e0f167a6c4e..ff08015b230c 100644
--- a/drivers/usb/misc/emi62.c
+++ b/drivers/usb/misc/emi62.c
@@ -56,7 +56,7 @@ static int emi62_writememory(struct usb_device *dev, int address,
unsigned char *buffer = kmemdup(data, length, GFP_KERNEL);
if (!buffer) {
- err("emi62: kmalloc(%d) failed.", length);
+ dev_err(&dev->dev, "kmalloc(%d) failed.\n", length);
return -ENOMEM;
}
/* Note: usb_control_msg returns negative value on error or length of the
@@ -73,9 +73,8 @@ static int emi62_set_reset (struct usb_device *dev, unsigned char reset_bit)
dev_info(&dev->dev, "%s - %d\n", __func__, reset_bit);
response = emi62_writememory (dev, CPUCS_REG, &reset_bit, 1, 0xa0);
- if (response < 0) {
- err("emi62: set_reset (%d) failed", reset_bit);
- }
+ if (response < 0)
+ dev_err(&dev->dev, "set_reset (%d) failed\n", reset_bit);
return response;
}
@@ -87,18 +86,15 @@ static int emi62_load_firmware (struct usb_device *dev)
const struct firmware *bitstream_fw = NULL;
const struct firmware *firmware_fw = NULL;
const struct ihex_binrec *rec;
- int err;
+ int err = -ENOMEM;
int i;
__u32 addr; /* Address to write */
__u8 *buf;
dev_dbg(&dev->dev, "load_firmware\n");
buf = kmalloc(FW_LOAD_SIZE, GFP_KERNEL);
- if (!buf) {
- err( "%s - error loading firmware: error = %d", __func__, -ENOMEM);
- err = -ENOMEM;
+ if (!buf)
goto wraperr;
- }
err = request_ihex_firmware(&loader_fw, "emi62/loader.fw", &dev->dev);
if (err)
@@ -112,16 +108,13 @@ static int emi62_load_firmware (struct usb_device *dev)
err = request_ihex_firmware(&firmware_fw, FIRMWARE_FW, &dev->dev);
if (err) {
nofw:
- err( "%s - request_firmware() failed", __func__);
goto wraperr;
}
/* Assert reset (stop the CPU in the EMI) */
err = emi62_set_reset(dev,1);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
rec = (const struct ihex_binrec *)loader_fw->data;
@@ -130,19 +123,15 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_INTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
rec = ihex_next_binrec(rec);
}
/* De-assert reset (let the CPU run) */
err = emi62_set_reset(dev,0);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
msleep(250); /* let device settle */
/* 2. We upload the FPGA firmware into the EMI
@@ -160,18 +149,14 @@ static int emi62_load_firmware (struct usb_device *dev)
rec = ihex_next_binrec(rec);
}
err = emi62_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
} while (rec);
/* Assert reset (stop the CPU in the EMI) */
err = emi62_set_reset(dev,1);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
/* 3. We need to put the loader for the firmware into the EZ-USB (again...) */
for (rec = (const struct ihex_binrec *)loader_fw->data;
@@ -179,18 +164,14 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_INTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
}
/* De-assert reset (let the CPU run) */
err = emi62_set_reset(dev,0);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
msleep(250); /* let device settle */
/* 4. We put the part of the firmware that lies in the external RAM into the EZ-USB */
@@ -201,19 +182,15 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_EXTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
}
}
/* Assert reset (stop the CPU in the EMI) */
err = emi62_set_reset(dev,1);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
for (rec = (const struct ihex_binrec *)firmware_fw->data;
rec; rec = ihex_next_binrec(rec)) {
@@ -221,19 +198,15 @@ static int emi62_load_firmware (struct usb_device *dev)
err = emi62_writememory(dev, be32_to_cpu(rec->addr),
rec->data, be16_to_cpu(rec->len),
ANCHOR_LOAD_EXTERNAL);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
}
}
/* De-assert reset (let the CPU run) */
err = emi62_set_reset(dev,0);
- if (err < 0) {
- err("%s - error loading firmware: error = %d", __func__, err);
+ if (err < 0)
goto wraperr;
- }
msleep(250); /* let device settle */
release_firmware(loader_fw);
@@ -247,6 +220,9 @@ static int emi62_load_firmware (struct usb_device *dev)
return 1;
wraperr:
+ if (err < 0)
+ dev_err(&dev->dev,"%s - error loading firmware: error = %d\n",
+ __func__, err);
release_firmware(loader_fw);
release_firmware(bitstream_fw);
release_firmware(firmware_fw);