[PATCH v4 00/15] usb: dwc3: Add new updates for DWC_usb31

[PATCH v4 00/15] usb: dwc3: Add new updates for DWC_usb31

[Thinh Nguyen]

This patch series adds new updates and some fixes for DWC_usb31.

Changes in v4:
 - Correctly refer "databook" as "programming guide"
 - Document more detail about enabling of ESS periodic tx/rx threshold

Changes in v3:
 - Add "usb: dwc3: Check controller type before setting speed" to series

Changes in v2:
 - Add another patch to the series to increase mass_storage max_speed
 - Separate "usb: dwc3: ep0: Reset TRB counter for ep0 IN" from series
 - Separate "usb: dwc3: gadget: Set maxpacket size for ep0 IN" from series
 - Use msleep() instead of mdelay() for SoftReset PHY sync delay
 - Rename new USB31 macros from DWC3_USB31_* to DWC31_*
 - Rename device properties and replace '_' with '-'
 - Minor fixes in the commit messages


Thinh Nguyen (15):
  usb: dwc3: Add SoftReset PHY synchonization delay
  usb: core: urb: Check SSP isoc ep comp descriptor
  usb: dwc3: Update DWC_usb31 GTXFIFOSIZ reg fields
  usb: dwc3: Check IP revision for GTXFIFOSIZ
  usb: dwc3: Add DWC_usb31 GRXTHRCFG bit fields
  usb: dwc3: gadget: Check IP revision for GRXTHRCFG
  usb: dwc3: Add DWC_usb31 GTXTHRCFG reg fields
  usb: dwc3: Make TX/RX threshold configurable
  usb: dwc3: Check for ESS TX/RX threshold config
  usb: dwc3: Dump LSP and BMU debug info
  usb: dwc3: Track DWC_usb31 VERSIONTYPE
  usb: dwc3: Add disabling of start_transfer failure quirk
  usb: dwc3: Add workaround for isoc start transfer failure
  usb: dwc3: Check controller type before setting speed
  usb: gadget: mass_storage: Set max_speed to SSP

 Documentation/devicetree/bindings/usb/dwc3.txt |  19 +++
 drivers/usb/core/urb.c                         |   8 +
 drivers/usb/dwc3/core.c                        |  72 ++++++++-
 drivers/usb/dwc3/core.h                        |  53 +++++++
 drivers/usb/dwc3/debugfs.c                     |   5 +
 drivers/usb/dwc3/gadget.c                      | 205 ++++++++++++++++++++++++-
 drivers/usb/gadget/legacy/mass_storage.c       |   2 +-
 7 files changed, 354 insertions(+), 10 deletions(-)

-- 
2.11.0

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[PATCH v4 08/15] usb: dwc3: Make TX/RX threshold configurable

[Thinh Nguyen]

DWC_usb31 periodic transfer at 48K+ bytes per interval may need
modification to the TX/RX packet threshold to achieve optimal result.
Add properties to make it configurable.

By default, periodic ESS TX and RX threshold are not enabled. To enable
TX or RX threshold (host mode only), both packet threshold count and max
burst size properties must be set to a valid non-zero value 1-16.

DWC_usb31 programming guide section 1.2.3 and 1.2.4.

Cc: John Youn <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
Signed-off-by: Thinh Nguyen <thinhn-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
---
 Documentation/devicetree/bindings/usb/dwc3.txt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index 52fb41046b34..e2c1edcd83dd 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -55,6 +55,22 @@ Optional properties:
  - snps,quirk-frame-length-adjustment: Value for GFLADJ_30MHZ field of GFLADJ
 	register for post-silicon frame length adjustment when the
 	fladj_30mhz_sdbnd signal is invalid or incorrect.
+ - snps,rx-thr-num-pkt-prd: periodic ESS RX packet threshold count - host mode
+			only. Set this and rx-max-burst-prd to a valid,
+			non-zero value 1-16 (DWC_usb31 programming guide
+			section 1.2.4) to enable periodic ESS RX threshold.
+ - snps,rx-max-burst-prd: max periodic ESS RX burst size - host mode only. Set
+			this and rx-thr-num-pkt-prd to a valid, non-zero value
+			1-16 (DWC_usb31 programming guide section 1.2.4) to
+			enable periodic ESS RX threshold.
+ - snps,tx-thr-num-pkt-prd: periodic ESS TX packet threshold count - host mode
+			only. Set this and tx-max-burst-prd to a valid,
+			non-zero value 1-16 (DWC_usb31 programming guide
+			section 1.2.3) to enable periodic ESS TX threshold.
+ - snps,tx-max-burst-prd: max periodic ESS TX burst size - host mode only. Set
+			this and tx-thr-num-pkt-prd to a valid, non-zero value
+			1-16 (DWC_usb31 programming guide section 1.2.3) to
+			enable periodic ESS TX threshold.
 
  - <DEPRECATED> tx-fifo-resize: determines if the FIFO *has* to be reallocated.
 
-- 
2.11.0

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[PATCH v4 12/15] usb: dwc3: Add disabling of start_transfer failure quirk

[Thinh Nguyen]

In DWC_usb31 version 1.70a-ea06 and prior needs a SW workaround for isoc
START TRANSFER command failure. However, some affected versions may have
RTL patches to fix this without a SW workaround. Add this quirk to
disable the SW workaround when it is not needed.

Synopsys STAR 9001202023: Wrong microframe number for isochronous IN
endpoints.

Cc: John Youn <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
Signed-off-by: Thinh Nguyen <thinhn-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
---
 Documentation/devicetree/bindings/usb/dwc3.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index e2c1edcd83dd..98b4da23c595 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -15,6 +15,9 @@ Optional properties:
  - phys: from the *Generic PHY* bindings
  - phy-names: from the *Generic PHY* bindings; supported names are "usb2-phy"
 	or "usb3-phy".
+ - snps,dis-start-transfer-quirk: when set, disable isoc START TRANSFER command
+			failure SW work-around for DWC_usb31 version 1.70a-ea06
+			and prior.
  - snps,usb3_lpm_capable: determines if platform is USB3 LPM capable
  - snps,disable_scramble_quirk: true when SW should disable data scrambling.
 	Only really useful for FPGA builds.
-- 
2.11.0

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Re: [PATCH v4 08/15] usb: dwc3: Make TX/RX threshold configurable

[Rob Herring]

On Wed, Jan 31, 2018 at 01:16:38PM -0800, Thinh Nguyen wrote:
> DWC_usb31 periodic transfer at 48K+ bytes per interval may need
> modification to the TX/RX packet threshold to achieve optimal result.
> Add properties to make it configurable.
> 
> By default, periodic ESS TX and RX threshold are not enabled. To enable
> TX or RX threshold (host mode only), both packet threshold count and max
> burst size properties must be set to a valid non-zero value 1-16.
> 
> DWC_usb31 programming guide section 1.2.3 and 1.2.4.
> 
> Cc: John Youn <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
> Signed-off-by: Thinh Nguyen <thinhn-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/usb/dwc3.txt | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)

Reviewed-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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