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3 Commits

Author SHA1 Message Date
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
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