#
5d888fee |
|
20-Nov-2023 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
usb: gadget: lpc32xx_udc: Convert to platform remove callback returning void The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). In the error path emit an error message replacing the (less useful) message by the core. Apart from the improved error message there is no change in behaviour. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20231120215830.71071-5-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
ff8e4630 |
|
17-Oct-2023 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
usb: gadget: lpc32xx-udc: Convert to use module_platform_driver() module_platform_driver_probe() has the advantage that the .probe() and .remove() calls can live in .init.text and .exit.text respectively and so some memory is saved. The downside is that dynamic bind and unbind are impossible. As the driver doesn't benefit from the advantages (both .probe and .remove are defined in plain .text), stop suffering from the downsides and use module_platform_driver() instead of module_platform_driver_probe(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20231017204442.1625925-12-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
e3965aca |
|
02-Feb-2023 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: gadget: lpc32xx_udc: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once. Cc: Jakob Koschel <jakobkoschel@gmail.com> Cc: Miaoqian Lin <linmq006@gmail.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Link: https://lore.kernel.org/r/20230202153235.2412790-10-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
4757c9ad |
|
03-Jun-2022 |
Miaoqian Lin <linmq006@gmail.com> |
usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. of_node_put() will check NULL pointer. Fixes: 24a28e428351 ("USB: gadget driver for LPC32xx") Cc: stable <stable@kernel.org> Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220603140246.64529-1-linmq006@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
4a2a73bf |
|
08-Mar-2022 |
Jakob Koschel <jakobkoschel@gmail.com> |
usb: gadget: lpc32xx_udc: remove usage of list iterator past the loop body If the list representing the request queue does not contain the expected request, the value of the list_for_each_entry() iterator will not point to a valid structure. To avoid type confusion in such case, the list iterator scope will be limited to the list_for_each_entry() loop. In preparation to limiting scope of the list iterator to the list traversal loop, use a dedicated pointer to point to the found request object [1]. Link: https://lore.kernel.org/all/YhdfEIwI4EdtHdym@kroah.com/ Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com> Link: https://lore.kernel.org/r/20220308171818.384491-9-jakobkoschel@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
e3d59eff |
|
18-May-2021 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: gadget: lpc32xx_udc: remove debugfs dentry variable There is no need to store the dentry for a fixed filename that we have the string for. So just have debugfs look it up when we need it to remove the file, no need to store it anywhere locally. Note, this driver is broken in that debugfs will not work for more than one instance of the device it supports. But given that this patch does not change that, and no one has ever seemed to notice, it must not be an issue... Cc: Felipe Balbi <balbi@kernel.org> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: linux-usb@vger.kernel.org Acked-by: Vladimir Zapolskiy <vz@mleia.com> Acked-by: Felipe Balbi <balbi@kernel.org> Link: https://lore.kernel.org/r/20210518162035.3697860-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
5bb1d119 |
|
18-Sep-2020 |
Qinglang Miao <miaoqinglang@huawei.com> |
usb: gadget: lpc32xx_udc: Convert to DEFINE_SHOW_ATTRIBUTE Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
|
#
25051b55 |
|
07-Jul-2020 |
Wei Yongjun <weiyongjun1@huawei.com> |
udc: lpc32xx: make symbol 'lpc32xx_usbddata' static The sparse tool complains as follows: drivers/usb/gadget/udc/lpc32xx_udc.c:2989:25: warning: symbol 'lpc32xx_usbddata' was not declared. Should it be static? This variable is not used outside of lpc32xx_udc.c, so this commit marks it static. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20200707105350.7064-1-weiyongjun1@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
120d91da |
|
06-Jul-2020 |
Lee Jones <lee.jones@linaro.org> |
usb: gadget: udc: lpc32xx_udc: Staticify 2 local functions These are not used outside of this sourcefile, so make them static. Fixes the following W=1 kernel build warning(s): drivers/usb/gadget/udc/lpc32xx_udc.c:1929:6: warning: no previous prototype for ‘udc_send_in_zlp’ [-Wmissing-prototypes] 1929 | void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) | ^~~~~~~~~~~~~~~ drivers/usb/gadget/udc/lpc32xx_udc.c:1943:6: warning: no previous prototype for ‘udc_handle_eps’ [-Wmissing-prototypes] 1943 | void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) | ^~~~~~~~~~~~~~ Cc: Felipe Balbi <balbi@kernel.org> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Kevin Wells <kevin.wells@nxp.com> Cc: Roland Stigge <stigge@antcom.de> Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Link: https://lore.kernel.org/r/20200706133341.476881-13-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
f1a0a994 |
|
30-Jun-2020 |
Arnd Bergmann <arnd@arndb.de> |
udc: lpc32xx: mark local function static The kernel test robot reports two functions that should be marked static: >> drivers/usb/gadget/udc/lpc32xx_udc.c:1928:6: warning: no previous prototype for 'udc_send_in_zlp' [-Wmissing-prototypes] 1928 | void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) >> drivers/usb/gadget/udc/lpc32xx_udc.c:1942:6: warning: no previous prototype for 'udc_handle_eps' [-Wmissing-prototypes] 1942 | void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep) This showed up after my commit 792e559e94bc ("udc: lpc32xx: fix 64-bit compiler warning") made it possible to build the driver on x86-64. Fix the warning as suggested. Reported-by: kernel test robot <lkp@intel.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
#
eafa8004 |
|
21-May-2020 |
Colin Ian King <colin.king@canonical.com> |
usb: gadget: lpc32xx_udc: don't dereference ep pointer before null check Currently pointer ep is being dereferenced before it is null checked leading to a null pointer dereference issue. Fix this by only assigning pointer udc once ep is known to be not null. Also remove a debug message that requires a valid udc which may not be possible at that point. Addresses-Coverity: ("Dereference before null check") Fixes: 24a28e428351 ("USB: gadget driver for LPC32xx") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
|
#
dcfd72ee |
|
18-Feb-2020 |
Corentin Labbe <clabbe@baylibre.com> |
usb: gadget: lpc32xx_udc: remove useless cast for driver.name device_driver name is const char pointer, so it not useful to cast driver_name (which is already const char). Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Link: https://lore.kernel.org/r/1582054383-35760-10-git-send-email-clabbe@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
a9a367d0 |
|
19-Sep-2019 |
Markus Elfring <elfring@users.sourceforge.net> |
usb: gadget: udc: lpc32xx: Use devm_platform_ioremap_resource() in lpc32xx_udc_probe() Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
b987b66a |
|
14-Oct-2019 |
Gustavo A. R. Silva <gustavo@embeddedor.com> |
usb: udc: lpc32xx: fix bad bit shift operation It seems that the right variable to use in this case is *i*, instead of *n*, otherwise there is an undefined behavior when right shifiting by more than 31 bits when multiplying n by 8; notice that *n* can take values equal or greater than 4 (4, 8, 16, ...). Also, notice that under the current conditions (bl = 3), we are skiping the handling of bytes 3, 7, 31... So, fix this by updating this logic and limit *bl* up to 4 instead of up to 3. This fix is based on function udc_stuff_fifo(). Addresses-Coverity-ID: 1454834 ("Bad bit shift operation") Fixes: 24a28e428351 ("USB: gadget driver for LPC32xx") Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20191014191830.GA10721@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
792e559e |
|
18-Sep-2019 |
Arnd Bergmann <arnd@arndb.de> |
udc: lpc32xx: fix 64-bit compiler warning gcc points out a suspicious cast from a pointer to an 'int' when compile-testing on 64-bit architectures. drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_pop_fifo’: drivers/usb/gadget/udc/lpc32xx_udc.c:1156:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_stuff_fifo’: drivers/usb/gadget/udc/lpc32xx_udc.c:1257:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] The code works find, but it's easy enough to change the cast to a uintptr_t to shut up that warning. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20190918200201.2292008-1-arnd@arndb.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
c33f1416 |
|
20-Aug-2019 |
Gustavo A. R. Silva <gustavo@embeddedor.com> |
usb: udc: lpc32xx: silence fall-through warning Silence the following fall-through warning by adding a break statement: drivers/usb/gadget/udc/lpc32xx_udc.c:2230:3: warning: this statement may fall through [-Wimplicit-fallthrough=] Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
566aacaf |
|
22-Aug-2019 |
Mao Wenan <maowenan@huawei.com> |
usb: udc: lpc32xx: remove set but not used 3 variables Fixes gcc '-Wunused-but-set-variable' warning: drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_protocol_cmd_r’: drivers/usb/gadget/udc/lpc32xx_udc.c:744:6: warning: variable ‘tmp’ set but not used [-Wunused-but-set-variable] drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_handle_dma_ep’: drivers/usb/gadget/udc/lpc32xx_udc.c:1994:14: warning: variable ‘epstatus’ set but not used [-Wunused-but-set-variable] drivers/usb/gadget/udc/lpc32xx_udc.c: In function ‘udc_handle_ep0_setup’: drivers/usb/gadget/udc/lpc32xx_udc.c:2200:22: warning: variable ‘wLength’ set but not used [-Wunused-but-set-variable] It is not used since commit 90fccb529d24 ("usb: gadget: Gadget directory cleanup - group UDC drivers") Signed-off-by: Mao Wenan <maowenan@huawei.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
3afa758c |
|
20-Aug-2019 |
Gustavo A. R. Silva <gustavo@embeddedor.com> |
usb: udc: lpc32xx: silence fall-through warning Silence the following fall-through warning by adding a break statement: drivers/usb/gadget/udc/lpc32xx_udc.c:2230:3: warning: this statement may fall through [-Wimplicit-fallthrough=] Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20190821021627.GA2679@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
50ad1528 |
|
09-Aug-2019 |
Arnd Bergmann <arnd@arndb.de> |
usb: udc: lpc32xx: allow compile-testing The only thing that prevents building this driver on other platforms is the mach/hardware.h include, which is not actually used here at all, so remove the line and allow CONFIG_COMPILE_TEST. Link: https://lore.kernel.org/r/20190809144043.476786-3-arnd@arndb.de Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
#
b33f3706 |
|
30-Jul-2019 |
Stephen Boyd <swboyd@chromium.org> |
usb: Remove dev_err() usage after platform_get_irq() We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20190730181557.90391-47-swboyd@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
42cc6886 |
|
04-May-2019 |
Wei Yongjun <weiyongjun1@huawei.com> |
usb: gadget: udc: lpc32xx: fix return value check in lpc32xx_udc_probe() In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). This issue was detected by using the Coccinelle software. Fixes: 408b56ca5c8e ("usb: gadget: udc: lpc32xx: simplify probe") Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
fbc318af |
|
22-May-2019 |
Alexandre Belloni <alexandre.belloni@bootlin.com> |
usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC Gadget drivers may queue request in interrupt context. This would lead to a descriptor allocation in that context. In that case we would hit BUG_ON(in_interrupt()) in __get_vm_area_node. Also remove the unnecessary cast. Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com> Tested-by: James Grant <jamesg@zaltys.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
c67d4262 |
|
09-Apr-2019 |
Alexandre Belloni <alexandre.belloni@bootlin.com> |
usb: gadget: udc: lpc32xx: rework interrupt handling There is no actual need to do the enable/disable_irq dance. Instead enable the interrupts on the phy only when necessary. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
2a60f5ea |
|
09-Apr-2019 |
Alexandre Belloni <alexandre.belloni@bootlin.com> |
usb: gadget: udc: lpc32xx: add support for stotg04 phy The STOTG04 phy is used as a drop-in replacement of the ISP1301 but some bits doesn't have exactly the same meaning and this can lead to issues. Detect the phy dynamically and avoid writing to reserved bits. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
f584fa8c |
|
09-Apr-2019 |
Alexandre Belloni <alexandre.belloni@bootlin.com> |
usb: gadget: udc: lpc32xx: properly setup phy interrupts Only INT_VBUS_VLD is set to generate ATX interrupts on the phy but INT_SESS_VLD is checked in vbus_work. This leads to cases where hot-plugging USB doesn't work after boot. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
59a9901e |
|
09-Apr-2019 |
Alexandre Belloni <alexandre.belloni@bootlin.com> |
usb: gadget: udc: lpc32xx: simplify vbus handling Use a threaded IRQ to handle vbus_work instead of using the global worqueue. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
408b56ca |
|
09-Apr-2019 |
Alexandre Belloni <alexandre.belloni@bootlin.com> |
usb: gadget: udc: lpc32xx: simplify probe Simplify .probe and .remove by using devm managed allocations and requests. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
|
#
229e3682 |
|
06-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: gadget: udc: Remove redundant license text Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com> Cc: Raviteja Garimella <raviteja.garimella@broadcom.com> Cc: Romain Perier <romain.perier@collabora.com> Cc: Johan Hovold <johan@kernel.org> Cc: Al Cooper <alcooperx@gmail.com> Cc: Srinath Mannam <srinath.mannam@broadcom.com> Cc: Roger Quadros <rogerq@ti.com> Cc: Krzysztof Opasiak <k.opasiak@samsung.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: "Felix Hädicke" <felixhaedicke@web.de> Cc: Peter Chen <peter.chen@nxp.com> Cc: Allen Pais <allen.lkml@gmail.com> Cc: Yuyang Du <yuyang.du@intel.com> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
5fd54ace |
|
03-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: add SPDX identifiers to all remaining files in drivers/usb/ It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/usb/ and include/linux/usb* files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
59e05272 |
|
02-Mar-2016 |
Vladimir Zapolskiy <vz@mleia.com> |
usb: udc: lpc32xx: remove USB PLL and USB OTG clock management LPC32xx common clock framework driver correctly manages parent clocks of USB device clock, so there is no need to manually enable and disable them from the driver, which now depends only on a single USB device clock. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
|
#
c9083dd3 |
|
02-Mar-2016 |
Vladimir Zapolskiy <vz@mleia.com> |
usb: udc: lpc32xx: remove direct access to clock controller registers Direct access to clock control registers can be safely removed, the task of clock management is done by platform clock driver based on common clock framework. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
|
#
68726e77 |
|
02-Mar-2016 |
Vladimir Zapolskiy <vz@mleia.com> |
usb: udc: lpc32xx: switch to clock prepare/unprepare model The driver requires to prepare/unprepare clocks to work properly on a platform with enabled common clock framework, otherwise unprepared clocks are not enabled: WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:728 clk_core_enable+0x2c/0xf0() Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 4.3.0-rc2+ #284 Hardware name: LPC32XX SoC (Flattened Device Tree) Backtrace: [<>] (dump_backtrace) from [<>] (show_stack+0x18/0x1c) [<>] (show_stack) from [<>] (dump_stack+0x20/0x28) [<>] (dump_stack) from [<>] (warn_slowpath_common+0x90/0xb8) [<>] (warn_slowpath_common) from [<>] (warn_slowpath_null+0x24/0x2c) [<>] (warn_slowpath_null) from [<>] (clk_core_enable+0x2c/0xf0) [<>] (clk_core_enable) from [<>] (clk_enable+0x24/0x38) [<>] (clk_enable) from [<>] (lpc32xx_udc_probe+0x284/0x924) [<>] (lpc32xx_udc_probe) from [<>] (platform_drv_probe+0x50/0xa0) [<>] (platform_drv_probe) from [<>] (driver_probe_device+0x18c/0x408) [<>] (driver_probe_device) from [<>] (__driver_attach+0x70/0x94) [<>] (__driver_attach) from [<>] (bus_for_each_dev+0x74/0x98) [<>] (bus_for_each_dev) from [<>] (driver_attach+0x20/0x28) [<>] (driver_attach) from [<>] (bus_add_driver+0x11c/0x248) [<>] (bus_add_driver) from [<>] (driver_register+0xa4/0xe8) [<>] (driver_register) from [<>] (__platform_driver_register+0x50/0x64) [<>] (__platform_driver_register) from [<>] (__platform_driver_probe+0x54/0x100) [<>] (__platform_driver_probe) from [<>] (lpc32xx_udc_driver_init+0x1c/0x28) [<>] (lpc32xx_udc_driver_init) from [<>] (do_one_initcall+0x11c/0x1dc) [<>] (do_one_initcall) from [<>] (kernel_init_freeable+0x10c/0x1d4) [<>] (kernel_init_freeable) from [<>] (kernel_init+0x10/0xec) [<>] (kernel_init) from [<>] (ret_from_fork+0x14/0x24) Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
|
#
2de59c09 |
|
07-Dec-2015 |
Vladimir Zapolskiy <vz@mleia.com> |
usb: gadget: lpc32xxx_udc: clean up and sort include directives out Remove mach/irq.h from the list of included headers, there is no compilation dependency on this include file, and the change is needed to prevent a compilation failure, when mach/irq.h is removed. Additionally remove other unneeded includes and sort out their order. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
|
#
4d75c8bd |
|
31-Jul-2015 |
Robert Baldyga <r.baldyga@samsung.com> |
usb: gadget: lpc32xx_udc: add ep capabilities support Convert endpoint configuration to new capabilities model. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
|
#
005a6430 |
|
10-Mar-2015 |
Peter Chen <peter.chen@freescale.com> |
usb: gadget: lpc32xxx_udc: Fix NULL dereference udc is then checked for NULL, if NULL, it is then dereferenced as udc->dev, it is found using Coccinelle. We simplify the code to fix this problem, and we delete some conditions at if {} which will never be met. Reported-by: Tapasweni Pathak <tapaswenipathak@gmail.com> Reported-by : Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
|
#
d60d9392 |
|
28-Jan-2015 |
Peter Chen <peter.chen@freescale.com> |
usb: gadget: lpc32xx_udc: use common is_selfpowered Delete private selfpowered variable, and use common one. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
|
#
23fba80a |
|
24-Nov-2014 |
Felipe Balbi <balbi@ti.com> |
usb: gadget: udc: lpc32xx: remove unnecessary NULL check debugfs_remove() is safe against NULL pointers, so let's remove the unnecessary NULL check before calling it. Acked-by: Peter Chen <peter.chen@freeescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
|
#
22835b80 |
|
16-Oct-2014 |
Felipe Balbi <balbi@ti.com> |
usb: gadget: remove unnecessary 'driver' argument now that no UDC driver relies on the extra 'driver' argument to ->udc_stop(), we can safely remove it. This commit is based on previous work by Robert Baldyga <r.baldyga@samsung.com> which can be found at [1]; however that patch turned out to have a high probability of regressing many UDC drivers because of a blind search & replace s/driver/$udc->driver/ which caused the 'driver' argument to stop_activity() to be a valid non-NULL pointer when it should be NULL, thus causing UDCs to mistakenly call gadget driver's ->disconnect() callback. [1] http://markmail.org/message/x5zneg4xea4zntab Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
|
#
d3cb25bf |
|
17-Oct-2014 |
Felipe Balbi <balbi@ti.com> |
usb: gadget: udc: lpc32xx: do not rely on 'driver' argument future patches will remove the extra 'driver' argument to ->udc_stop(), in order to do that, we must make sure that our UDC does not rely on it first. Signed-off-by: Felipe Balbi <balbi@ti.com>
|
#
6d3f5f2d |
|
20-Oct-2014 |
Wolfram Sang <wsa@kernel.org> |
usb: gadget: udc: drop owner assignment from platform_drivers A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
|
#
304f7e5e |
|
24-Sep-2014 |
Michal Sojka <sojka@merica.cz> |
usb: gadget: Refactor request completion Use the recently introduced usb_gadget_giveback_request() in favor of direct invocation of the completion routine. All places in drivers/usb/ matching "[-.]complete(" were replaced with a call to usb_gadget_giveback_request(). This was compile-tested with all ARM drivers enabled and runtime-tested for musb. Signed-off-by: Michal Sojka <sojka@merica.cz> Acked-by: Felipe Balbi <balbi@ti.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
90fccb52 |
|
15-Jul-2014 |
Andrzej Pietrasiewicz <andrzej.p@samsung.com> |
usb: gadget: Gadget directory cleanup - group UDC drivers The drivers/usb/gadget directory contains many files. Files which are related can be distributed into separate directories. This patch moves the UDC drivers into a separate directory. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
|