Commit Graph

6 Commits

Author SHA1 Message Date
Lee Jones
56480a03f1 usb: cdns3: cdns3-gadget: Fix a bunch of kernel-doc related formatting issues
Fixes the following W=1 kernel build warning(s):

 drivers/usb/cdns3/cdns3-gadget.c:163: warning: expecting prototype for select_ep(). Prototype was for cdns3_select_ep() instead
 drivers/usb/cdns3/cdns3-gadget.c:2025: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2224: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2247: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2264: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2399: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2489: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2589: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2656: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2677: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2722: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2768: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2877: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2923: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/usb/cdns3/cdns3-gadget.c:2986: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

Cc: Peter Chen <peter.chen@kernel.org>
Cc: Pawel Laszczak <pawell@cadence.com>
Cc: Roger Quadros <rogerq@kernel.org>
Cc: Aswath Govindraju <a-govindraju@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Pawel Jez <pjez@cadence.com>
Cc: linux-usb@vger.kernel.org
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210526130037.856068-8-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-27 09:43:44 +02:00
Sanket Parmar
8430e98f2c usb: cdns3: Optimize DMA request buffer allocation
dma_alloc_coherent() might fail on the platform with a small
DMA region.

To avoid such failure in cdns3_prepare_aligned_request_buf(),
dma_alloc_coherent() is replaced with dma_alloc_noncoherent()
to allocate aligned request buffer of dynamic length.

Reported-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Sanket Parmar <sparmar@cadence.com>
Signed-off-by: Peter Chen <peter.chen@kernel.org>
2021-04-12 20:19:22 +08:00
Sanket Parmar
b9b1eae761 usb: cdns3: Use dma_pool_* api to alloc trb pool
Allocation of DMA coherent memory in atomic context using
dma_alloc_coherent() might fail on platforms with smaller
DMA region.

To fix it, dma_alloc_coherent() is replaced with dma_pool
API to allocate a smaller chunk of DMA coherent memory for
TRB rings.

Reported-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Sanket Parmar <sparmar@cadence.com>
Signed-off-by: Peter Chen <peter.chen@kernel.org>
2021-04-12 20:19:22 +08:00
Frank Li
2cf2581cd2 usb: cdns3: add power lost support for system resume
If the controller lost its power during the system suspend, we need
to do all initialiation operations.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Frank Li <frank.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@kernel.org>
2021-04-12 20:19:20 +08:00
Pawel Laszczak
fba8701bae usb: cdns3: Fixes for sparse warnings
Patch fixes the following warnings:
cdns3-gadget.c:1203: sparse: warning: incorrect type
                     in assignment (different base types)
cdns3-gadget.c:1203: sparse:  expected restricted __le32 [usertype] length
cdns3-gadget.c:1203: sparse:  got unsigned long
cdns3-gadget.c:1250: sparse: warning: invalid assignment: |=
cdns3-gadget.c:1250: sparse:  left side has type restricted __le32
cdns3-gadget.c:1250: sparse:  right side has type unsigned long
cdns3-gadget.c:1253: sparse: warning: invalid assignment: |=
cdns3-gadget.c:1253: sparse:  left side has type restricted __le32
cdns3-gadget.c:1253: sparse:  right side has type unsigned long
cdns3-ep0.c:367: sparse: warning: restricted __le16 degrades to integer
cdns3-ep0.c:792: sparse: warning: symbol 'cdns3_gadget_ep0_ops' was not
                                  declared. Should it be static?

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
2020-12-29 12:36:13 +08:00
Pawel Laszczak
64b558f597 usb: cdns3: Change file names for cdns3 driver.
Patch adds prefix cdns3- to all file names related only to
cdns3 driver.

Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
2020-12-29 12:36:13 +08:00