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path: root/drivers/usb/gadget/udc/max3420_udc.c
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2024-02-08usb: gadget: max3420_udc: Follow renaming of SPI "master" to "controller"Uwe Kleine-König
In commit 8caab75fd2c2 ("spi: Generalize SPI "master" to "controller"") some functions and struct members were renamed. To not break all drivers compatibility macros were provided. To be able to remove these compatibility macros push the renaming into this driver. Reviewed-by: Herve Codina <herve.codina@bootlin.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/5caf03b6f321a9870aabb9282f1f22211d052740.1707324794.git.u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2023-11-16treewide, spi: Get rid of SPI_MASTER_HALF_DUPLEXAndy Shevchenko
The SPI_MASTER_HALF_DUPLEX is the legacy name of a definition for a half duplex flag. Since all others had been replaced with the respective SPI_CONTROLLER prefix get rid of the last one as well. There is no functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # for input Acked-by: Paolo Abeni <pabeni@redhat.com> Link: https://lore.kernel.org/r/20231113111249.3982461-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2023-07-25usb: Explicitly include correct DT includesRob Herring
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230718143027.1064731-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-16usb: gadget: max3420_udc: drop of_match_ptr for ID tableKrzysztof Kozlowski
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it might not be relevant here). drivers/usb/gadget/udc/max3420_udc.c:1312:34: error: ‘max3420_udc_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230311173624.263189-6-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-02usb: gadget: udc: do not clear gadget driver.busAaro Koskinen
Before the commit fc274c1e9973 ("USB: gadget: Add a new bus for gadgets") gadget driver.bus was unused. For whatever reason, many UDC drivers set this field explicitly to NULL in udc_start(). With the newly added gadget bus, doing this will crash the driver during the attach. The problem was first reported, fixed and tested with OMAP UDC and g_ether. Other drivers are changed based on code analysis only. Fixes: fc274c1e9973 ("USB: gadget: Add a new bus for gadgets") Cc: stable <stable@kernel.org> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20230201220125.GD2415@darkstar.musicnaut.iki.fi Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-26Merge tag 'usb-5.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 5.18-rc1. Nothing major in here, just lots of little improvements and cleanups and new device support. Highlights are: - list iterator fixups for when we walk past the end of the list (a common problem that was cut/pasted in almost all USB gadget drivers) - xen USB driver "hardening" for malicious hosts - xhci driver updates and fixes for more hardware types - xhci debug cable fixes to make it actually work again - usb gadget audio driver improvements - usb gadget storage fixes to work with OS-X - lots of other small usb gadget fixes and updates - USB DWC3 driver improvements for more hardware types - Lots of other small USB driver improvements - DTS updates for some USB platforms All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (172 commits) usb: gadget: fsl_qe_udc: Add missing semicolon in qe_ep_dequeue() dt-bindings: usb: mtk-xhci: add compatible for mt8186 usb: dwc3: Issue core soft reset before enabling run/stop usb: gadget: Makefile: remove ccflags-y USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c usb: gadget: eliminate anonymous module_init & module_exit usb: usbip: eliminate anonymous module_init & module_exit xen/usb: harden xen_hcd against malicious backends usb: dwc3: gadget: Wait for ep0 xfers to complete during dequeue usb: dwc3: gadget: move cmd_endtransfer to extra function usb: dwc3: gadget: ep_queue simplify isoc start condition xen/usb: don't use arbitrary_virt_to_machine() usb: isp1760: remove redundant max_packet() macro usb: oxu210hp-hcd: remove redundant call to max_packet() macro usb: common: usb-conn-gpio: Make VBUS supply completely optional USB: storage: ums-realtek: fix error code in rts51x_read_mem() usb: early: xhci-dbc: Fix xdbc number parsing usb: early: xhci-dbc: Remove duplicate keep parsing x86/tsc: Be consistent about use_tsc_delay() usb: gadget: udc: s3c2410: remove usage of list iterator past the loop body ...
2022-03-15usb: gadget: udc: max3420_udc: remove using list iterator after loop body as ↵Jakob Koschel
a ptr If the list does not contain the expected element, the value of 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 list_for_each_entry() loop. In preparation to limiting scope of a list iterator to the list traversal loop, use a dedicated pointer to point to the found element [1]. Determining if an element was found is then simply checking if the pointer is != NULL instead of using the potentially bogus pointer. Link: https://lore.kernel.org/all/YhdfEIwI4EdtHdym@kroah.com/ Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com> Link: https://lore.kernel.org/r/20220308171818.384491-20-jakobkoschel@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-09spi: make remove callback a void functionUwe Kleine-König
The value returned by an spi driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Claudius Heine <ch@denx.de> Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC Acked-by: Marcus Folkesson <marcus.folkesson@gmail.com> Acked-by: Łukasz Stelmach <l.stelmach@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-6-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2021-07-27usb: gadget: remove leaked entry from udc driver listZhang Qilong
The usb_add_gadget_udc will add a new gadget to the udc class driver list. Not calling usb_del_gadget_udc in error branch will result in residual gadget entry in the udc driver list. We fix it by calling usb_del_gadget_udc to clean it when error return. Fixes: 48ba02b2e2b1 ("usb: gadget: add udc driver for max3420") Acked-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20210727073142.84666-1-zhangqilong3@huawei.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-18sched: Unbreak wakeupsPeter Zijlstra
Remove broken task->state references and let wake_up_process() DTRT. The anti-pattern in these patches breaks the ordering of ->state vs COND as described in the comment near set_current_state() and can lead to missed wakeups: (OoO load, observes RUNNING)<-. for (;;) { | t->state = UNINTERRUPTIBLE; | smp_mb(); ,-----> | (observes !COND) | / if (COND) ---------' | COND = 1; break; `- if (t->state != RUNNING) wake_up_process(t); // not done schedule(); // forever waiting } t->state = TASK_RUNNING; Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Davidlohr Bueso <dbueso@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210611082838.160855222@infradead.org
2020-07-15usb: gadget: Replace HTTP links with HTTPS onesAlexander A. Klimov
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Link: https://lore.kernel.org/r/20200710190919.31464-1-grandmaster@al2klimov.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09usb: gadget: udc: max3420_udc: Remove set, but never checked variable 'addr'Lee Jones
Fixes the following W=1 kernel build warning(s): drivers/usb/gadget/udc/max3420_udc.c: In function ‘max3420_handle_setup’: drivers/usb/gadget/udc/max3420_udc.c:626:5: warning: variable ‘addr’ set but not used [-Wunused-but-set-variable] 626 | u8 addr; | ^~~~ Cc: Felipe Balbi <balbi@kernel.org> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Jassi Brar <jaswinder.singh@linaro.org> Link: https://lore.kernel.org/r/20200706133341.476881-24-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-25usb: gadget: max3420: Add a missing '\n' in a log messageChristophe JAILLET
Message logged by 'dev_xxx()' or 'pr_xxx()' should end with a '\n'. Fixes: 48ba02b2e2b1 ("usb: gadget: add udc driver for max3420") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-03-15usb: gadget: add udc driver for max3420Jassi Brar
The MAX3420 is USB2.0 only, UDC-over-SPI controller. This driver also supports the peripheral mode of MAX3421. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Felipe Balbi <balbi@kernel.org>