linux-toradex.git/drivers/usb/dwc2, branch v5.2-rc4

dwc2: gadget: Fix completed transfer size calculation in DDMA

2019-05-03T06:13:49+00:00

Fix calculation of transfer size on completion in function
dwc2_gadget_get_xfersize_ddma().

Added increment of descriptor pointer to move to next descriptor in
the loop.

Fixes: aa3e8bc81311 ("usb: dwc2: gadget: DDMA transfer start and complete")

Signed-off-by: Minas Harutyunyan 
Signed-off-by: Felipe Balbi

usb: dwc2: Set lpm mode parameters depend on HW configuration

2019-05-03T06:13:49+00:00

If core not supported lpm, i.e. BCM2835 then confusing warnings seen
in log.

To avoid these warnings, added function dwc2_set_param_lpm() to set
lpm and other lpm related parameters based on lpm support by core.

Signed-off-by: Minas Harutyunyan 
Signed-off-by: Felipe Balbi

usb: dwc2: Fix channel disable flow

2019-05-03T06:13:48+00:00

Channel disabling/halting should performed for enabled only channels
to avoid warnings "Unable to clear enable on channel N" which seen
if host works in Slave mode.

Signed-off-by: Minas Harutyunyan 
Signed-off-by: Felipe Balbi

usb: dwc2: Set actual frame number for completed ISOC transfer

2019-05-03T06:13:48+00:00

On ISOC transfer completion, in DDMA mode, set actual frame
number returning to function driver in usb_request.

Due to core limitation, returning frame number is 11-bit wide.

Signed-off-by: Minas Harutyunyan 
Signed-off-by: Felipe Balbi

usb: dwc2: gadget: Increase descriptors count for ISOC's

2019-05-03T06:13:48+00:00

Some function drivers queueing more than 128 ISOC requests at a time.
To avoid "descriptor chain full" cases, increasing descriptors count
from MAX_DMA_DESC_NUM_GENERIC to MAX_DMA_DESC_NUM_HS_ISOC for ISOC's
only.

Signed-off-by: Minas Harutyunyan 
Signed-off-by: Felipe Balbi

usb: dwc2: Delayed status support

2019-05-03T06:13:48+00:00

Added delayed status support for Control transfers.

Tested in all 3 modes: Slave, BDMA and DDMA.
Performed tests: USB CV (Ch9 and MSC), Control Read/Write tests
using Synopsys USB test environment function driver.

Signed-off-by: Minas Harutyunyan 
Signed-off-by: Felipe Balbi

usb: dwc2: gadget: Move gadget phy init into core phy init

2019-05-03T06:13:48+00:00

Most of the phy initialization is shared between host and gadget,
this adds the turnaround configuration only used by gadgets to
the global phy init.

Acked-by: Minas Harutyunyan 
Signed-off-by: Jules Maselbas 
Signed-off-by: Felipe Balbi

usb: dwc2: Move phy init into core

2019-05-03T06:13:48+00:00

As the phy initialization is almost the same in host and gadget
mode. This only move the phy initialization functions into core.c
for now, the goal is to share theses functions between the two modes.

Acked-by: Minas Harutyunyan 
Signed-off-by: Jules Maselbas 
Signed-off-by: Felipe Balbi

usb: dwc2: gadget: Replace phyif with phy_utmi_width

2019-05-03T06:13:48+00:00

The phy utmi width information is already set in hsotg params,
phyif is only used in few places and I don't see any reason to
not use hsotg's params.

Moreover the utmi width was being forced to 16 bits by platform
initialization which doesn't take in account HW configuration.

Acked-by: Minas Harutyunyan 
Signed-off-by: Jules Maselbas 
Signed-off-by: Felipe Balbi

usb: dwc2: gadget: Remove duplicated phy init

2019-05-03T06:13:48+00:00

The function dwc2_hsotg_init is only called once just before calling
dwc2_hsotg_core_init_disconnected which does the same initialization:
setting the usbcfg register with turnaround time, timeout calibration
and phy width.

Acked-by: Minas Harutyunyan 
Signed-off-by: Jules Maselbas 
Signed-off-by: Felipe Balbi