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path: root/drivers/usb/mtu3/mtu3_qmu.c
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2019-03-26usb: mtu3: add tracepoints to help debugChunfeng Yun
This patch implements a few initial tracepoints for the mtu3 driver. More traces can be added as necessary in order to ease the task of debugging. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-26usb: mtu3: supports new QMU formatChunfeng Yun
In order to support U3gen2 ISOC transfer upto 96DPs, extend the data buffer length. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-26usb: mtu3: rebuild qmu_gpd struct to prepare to support new QMU formatChunfeng Yun
To support USB3 Gen2 ISOC, the data buffer length need be extended, it's hard to make the current qmu_gpd struct compatible, so here rebuild qmu_gpd struct and make easy to support new QMU format Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-26usb: mtu3: remove unnecessary local variable @reqChunfeng Yun
The local variable @req is unnecessary in qmu_tx_zlp_error_handler, so remove it. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-07usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handlerYueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/usb/mtu3/mtu3_qmu.c: In function 'qmu_tx_zlp_error_handler': drivers/usb/mtu3/mtu3_qmu.c:385:22: warning: variable 'req' set but not used [-Wunused-but-set-variable] It seems dbginfo original intention is print 'req' other than 'mreq' Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-12-05usb: mtu3: remove QMU checksumChunfeng Yun
The QMU checksum calculation is redundant, mostly used by debug, so remove it here. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-11-07USB: mtu3: Remove redundant license textGreg Kroah-Hartman
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. Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-04USB: add SPDX identifiers to all remaining files in drivers/usb/Greg Kroah-Hartman
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>
2017-11-02usb: mtu3: fix dma_addr_t printk output againArnd Bergmann
The support for 36-bit addresses originally came with an incorrect printk format for dma addresses. Felipe changed the format string it while applying, but the result was still incorrect, since we now have to pass a pointer to the address instead of the integer value: drivers/usb/mtu3/mtu3_qmu.c: In function 'mtu3_prepare_tx_gpd': drivers/usb/mtu3/mtu3_qmu.c:261:25: error: format '%p' expects argument of type 'void *', but argument 7 has type 'dma_addr_t {aka unsigned int}' [-Werror=format=] drivers/usb/mtu3/mtu3_qmu.c: In function 'mtu3_prepare_rx_gpd': drivers/usb/mtu3/mtu3_qmu.c:300:25: error: format '%p' expects argument of type 'void *', but argument 7 has type 'dma_addr_t {aka unsigned int}' [-Werror=format=] This fixes the printk argument accordingly. Fixes: 1a46dfea0841 ("usb: mtu3: support 36-bit DMA address") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-19usb: mtu3: support 36-bit DMA addressChunfeng Yun
add support for 36-bit DMA address [ Felipe Balbi: fix printk format for dma_addr_t ] Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-14usb: mtu3: declare functions staticSudip Mukherjee
The only user of the functions mtu3_irq() and gpd_ring_empty() are in the same file. They can be declared as static. Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-27usb: Add MediaTek USB3 DRD driverChunfeng Yun
This patch adds support for the MediaTek USB3 controller integrated into MT8173. It currently supports High-Speed Peripheral Only mode. Super-Speed Peripheral, Dual-Role Device and Host Only (xHCI) modes will be added in the next patchs. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>