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path: root/drivers/usb/gadget/atmel_usba_udc.c
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* treewide: replace #include <asm/errno.h> with <linux/errno.h>Masahiro Yamada2016-09-23-1/+1
| | | | | | | | | | | Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <trini@konsulko.com>
* usb: modify usb_gadget_handle_interrupts to take controller indexKishon Vijay Abraham I2015-04-14-1/+1
| | | | | | | | | | | | | | Since we support multiple dwc3 controllers to be existent at the same time, in order to handle the interrupts of a particular dwc3 controller usb_gadget_handle_interrutps should take controller index as an argument. Hence the API of usb_gadget_handle_interrupts is modified to take controller index as an argument and made the corresponding changes to all the usb_gadget_handle_interrupts calls. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* USB: gadget: atmel_usba_udc: fix transfer hang issueBo Shen2014-12-16-1/+0
| | | | | | | | | | | | | When receive data, the RXRDY in status register set by hardware after a new packet has been stored in the endpoint FIFO. After, we copy from FIFO, we clear it, make the FIFO can be accessed again. In the receive_data() function, this bit RXRDY has been cleared. So, after the receive_data() function return, this bit should not be cleared again, or else it will cause the accessing FIFO corrupt, which will make the data loss. Signed-off-by: Bo Shen <voice.shen@atmel.com>
* USB: gadget: atmel: get rid of debug compile warningBo Shen2014-09-02-6/+6
| | | | | | | | | | When enable debug option to compile, it will give the following warning, this patch is used to get rid of it. --->8--- warning: 'flags' is used uninitialized in this function [-Wuninitialized] ---8<--- Signed-off-by: Bo Shen <voice.shen@atmel.com>
* USB: gadget: atmel: zero out allocated requestsStephen Warren2014-07-02-1/+1
| | | | | | | | | | | A UDC's alloc_request method should zero out the newly allocated request. Ensure the Atmel driver does so. This issue was found by code inspection, following the investigation of an intermittent issue with ci_udc, which was tracked down to failing to zero out allocated requests following some of my changes. All other UDC drivers already zero out requests in one way or another. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* USB: gadget: atmel: disconnect before unbindBo Shen2013-09-24-1/+2
| | | | | | When unbind the gadget driver, need call disconnect first. Signed-off-by: Bo Shen <voice.shen@atmel.com>
* USB: gadget: add atmel usba udc driverBo Shen2013-09-24-0/+1305
Add atmel usba udc driver support, porting from Linux kernel The original code in Linux Kernel information is as following commit e01ee9f509a927158f670408b41127d4166db1c7 Author: Jingoo Han <jg1.han@samsung.com> Date: Tue Jul 30 17:00:51 2013 +0900 usb: gadget: use dev_get_platdata() Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Bo Shen <voice.shen@atmel.com>