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  1. 05 2月, 2015 2 次提交
    • R
      usb: dwc2: Fix a bug in reading the endpoint directions from reg. · 251a17f5
      由 Roshan Pius 提交于 
      According to  the DWC2 datasheet, the HWCFG1 register stores
the configured endpoint directions for endpoints 0-15 in bit positions
0-31.
==========================
Endpoint Direction (EpDir)
This 32-bit field uses two bits per endpoint to determine the endpoint
direction.
Endpoint
Bits [31:30]: Endpoint 15 direction
Bits [29:28]: Endpoint 14 direction
....
Bits [3:2]: Endpoint 1 direction
Bits[1:0]: Endpoint 0 direction (always BIDIR)
==========================

The DWC2 driver is currently interpreting the contents of the register
as directions for endpoints 1-15 which leads to an error in determining
the configured endpoint directions in the core because the first 2 bits
determine the direction of endpoint 0 and not 1.

This is based on testing/next branch in Felipe's git.
Signed-off-by: NRoshan Pius <rpius@chromium.org>
Acked-by: NJohn Youn <johnyoun@synopsys.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      251a17f5
    • P
      staging: emxx_udc: fix the build error · 1fa2df0c
      由 Peter Chen 提交于 
      Fix below build error:

reproduce:
  wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
  chmod +x ~/bin/make.cross
  git checkout 9239d88f
  # save the attached .config to linux build tree
  make.cross ARCH=arm

All error/warnings:

   In file included from include/linux/seqlock.h:35:0,
                    from include/linux/time.h:5,
                    from include/linux/stat.h:18,
                    from include/linux/module.h:10,
                    from drivers/staging/emxx_udc/emxx_udc.c:22:
   drivers/staging/emxx_udc/emxx_udc.c: In function 'nbu2ss_gad_set_selfpowered':
>> drivers/staging/emxx_udc/emxx_udc.c:3129:21: error: 'udc' undeclared (first use in this function)
     spin_lock_irqsave(&udc->lock, flags);
                        ^
   include/linux/spinlock.h:215:34: note: in definition of macro 'raw_spin_lock_irqsave'
      flags = _raw_spin_lock_irqsave(lock); \
                                     ^
>> drivers/staging/emxx_udc/emxx_udc.c:3129:2: note: in expansion of macro 'spin_lock_irqsave'
     spin_lock_irqsave(&udc->lock, flags);
     ^
   drivers/staging/emxx_udc/emxx_udc.c:3129:21: note: each undeclared identifier is reported only once for each function it appears in
     spin_lock_irqsave(&udc->lock, flags);
                        ^
   include/linux/spinlock.h:215:34: note: in definition of macro 'raw_spin_lock_irqsave'
      flags = _raw_spin_lock_irqsave(lock); \
                                     ^
>> drivers/staging/emxx_udc/emxx_udc.c:3129:2: note: in expansion of macro 'spin_lock_irqsave'
     spin_lock_irqsave(&udc->lock, flags);
     ^

vim +/udc +3129 drivers/staging/emxx_udc/emxx_udc.c

33aa8d45 Magnus Damm 2014-06-06  3123
33aa8d45 Magnus Damm 2014-06-06  3124  	if (pgadget == NULL) {
33aa8d45 Magnus Damm 2014-06-06  3125  		ERR("%s, bad param\n", __func__);
33aa8d45 Magnus Damm 2014-06-06  3126  		return -EINVAL;
33aa8d45 Magnus Damm 2014-06-06  3127  	}
33aa8d45 Magnus Damm 2014-06-06  3128
33aa8d45 Magnus Damm 2014-06-06 @3129  	spin_lock_irqsave(&udc->lock, flags);
9239d88f Peter Chen  2015-01-28  3130  	pgadget->is_selfpowered = (is_selfpowered != 0);
33aa8d45 Magnus Damm 2014-06-06  3131  	spin_unlock_irqrestore(&udc->lock, flags);
33aa8d45 Magnus Damm 2014-06-06  3132
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      1fa2df0c
  3. 03 2月, 2015 2 次提交
  5. 31 1月, 2015 17 次提交
  7. 30 1月, 2015 19 次提交