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path: root/drivers/usb/host/max3421-hcd.c
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* max3421-hcd: use USB_DT_HUBSergei Shtylyov2015-04-031-1/+1
| | | | | | | | Fix using the bare number to set the 'bDescriptorType' field of the Hub Descriptor while the value is #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* max3421-hcd: use HUB_CHAR_*Sergei Shtylyov2015-01-251-1/+2
| | | | | | | | Fix using the bare number to set the 'wHubCharacteristics' field of the Hub Descriptor while the values are #define'd in <linux/usb/ch11.h>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: use time_after()Asaf Vertz2015-01-091-1/+2
| | | | | | | | | To be future-proof and for better readability the time comparisons are modified to use time_after() instead of plain, error-prone math. Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com> Acked-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: unconditionally use GFP_ATOMIC in max3421_urb_enqueue()Alexey Khoroshilov2014-07-101-1/+1
| | | | | | | | | | | As far as kzalloc() is called with spinlock held, we have to pass GFP_ATOMIC regardless of mem_flags argument. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: Fix max3421_reset_port() to set USB_PORT_STAT_RESETDavid Mosberger-Tang2014-07-101-0/+1
| | | | | Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: Use atomic bitops in lieu of bit fieldsDavid Mosberger-Tang2014-07-101-25/+20Star
| | | | | | | Bit fields are not MP-safe. Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: Use module_spi_driverSachin Kamat2014-05-291-14/+1Star
| | | | | | | | | module_spi_driver simplifies the code by eliminating boilerplate code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: Allow platform-data to specify Vbus polarityDavid Mosberger-Tang2014-05-291-2/+4
| | | | | Signed-off-by: Davidm Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: fix "spi_rd8" uses dynamic stack allocation warningDavid Mosberger-Tang2014-05-291-34/+60
| | | | | | | | | | | | kmalloc the SPI rx and tx data buffers. This appears to be the only portable way to guarantee that the buffers are DMA-safe (e.g., in separate DMA cache-lines). This patch makes the spi_rdX()/spi_wrX() non-reentrant, but that's OK because calls to them are guaranteed to be serialized by the per-HCD SPI-thread. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: Fix missing unlock in max3421_urb_enqueue()David Mosberger-Tang2014-05-291-2/+5
| | | | | | Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: max3421-hcd: Fix potential NULL urb dereferenceDavid Mosberger-Tang2014-05-281-1/+3
| | | | | | Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Add support for using a MAX3421E chip as a host driver.David Mosberger2014-05-281-0/+1937
Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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