[PATCH v2 00/13] usb: dwc2: Fix up, consolidate, and simplify driver parameters

[PATCH v2 00/13] usb: dwc2: Fix up, consolidate, and simplify driver parameters

[John Youn]

This patch series cleans up and simplifies the parameter handling in
the dwc2 driver so that it is easier to set these parameters and
easier to maintain the driver and support more platforms in the long
run.

The long-term goal is to remove all static and legacy parameters in
favor of autodetection and/or devicetree properties.

However, this patch series is mostly a cleanup and refactoring to
allow for this. Then, it adds the current gadget-specific properties.
And for host-mode, it adds the DMA property. Lastly, it adds the
ability to set properties from the PCI driver so that we can perform
IP validation with the HAPS platform.

Later patch series will address the other properties and also allow
for them to be set by the PCI driver via debugfs.

Tested on DWC_hsotg IP version 3.30a on Synopsys HAPS platform.

v2:
* Renamed host-dma to "snps,host-dma-disable".
* Removed params->host_dma from being set statically.
* Reverted descriptor dma params renaming (to be addressed in the
  future).
* Simplified and removed unused code.

Regards,
John


John Youn (12):
  usb: dwc2: Remove unnecessary kfree
  usb: dwc2: Remove unused hardware parameter
  usb: dwc2: Add params.c file
  usb: dwc2: Declare the core params struct statically
  usb: dwc2: Move parameter initialization into params.c
  usb: dwc2: Remove dwc2_set_all_params function
  usb: dwc2: Remove unnecessary prototypes
  usb: dwc2: Rename host_rx_fifo_size hardware parameter
  usb: dwc2: Move gadget settings into core_params
  usb: dwc2: Rename the dma_enable parameter to host_dma
  Documentation: devicetree: dwc2: Add host DMA binding
  usb: dwc2: Get host DMA device properties

Vahram Aharonyan (1):
  usb: dwc2: Add PCI properties

 Documentation/devicetree/bindings/usb/dwc2.txt |    1 +
 drivers/usb/dwc2/Makefile                      |    1 +
 drivers/usb/dwc2/core.c                        |  930 +---------------
 drivers/usb/dwc2/core.h                        |  280 +----
 drivers/usb/dwc2/core_intr.c                   |    6 +-
 drivers/usb/dwc2/gadget.c                      |   95 +-
 drivers/usb/dwc2/hcd.c                         |  193 ++--
 drivers/usb/dwc2/hcd_ddma.c                    |    4 +-
 drivers/usb/dwc2/hcd_intr.c                    |   48 +-
 drivers/usb/dwc2/hcd_queue.c                   |   18 +-
 drivers/usb/dwc2/params.c                      | 1412 ++++++++++++++++++++++++
 drivers/usb/dwc2/pci.c                         |   19 +
 drivers/usb/dwc2/platform.c                    |  207 +---
 13 files changed, 1653 insertions(+), 1561 deletions(-)
 create mode 100644 drivers/usb/dwc2/params.c

-- 
2.10.0

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[PATCH v2 11/13] Documentation: devicetree: dwc2: Add host DMA binding

[John Youn]

Add the snps,host-dma-disable binding. This controls whether to disable
DMA in host mode.

Signed-off-by: John Youn <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
---
 Documentation/devicetree/bindings/usb/dwc2.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index 2c30a54..9472111 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -25,6 +25,7 @@ Optional properties:
 Refer to phy/phy-bindings.txt for generic phy consumer properties
 - dr_mode: shall be one of "host", "peripheral" and "otg"
   Refer to usb/generic.txt
+- snps,host-dma-disable: disable host DMA mode.
 - g-use-dma: enable dma usage in gadget driver.
 - g-rx-fifo-size: size of rx fifo size in gadget mode.
 - g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode.
-- 
2.10.0

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[PATCH v2 11/13] Documentation: devicetree: dwc2: Add host DMA binding

[John Youn]

Add the snps,host-dma-disable binding. This controls whether to disable
DMA in host mode.

Signed-off-by: John Youn <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
---
 Documentation/devicetree/bindings/usb/dwc2.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index 2c30a54..9472111 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -25,6 +25,7 @@ Optional properties:
 Refer to phy/phy-bindings.txt for generic phy consumer properties
 - dr_mode: shall be one of "host", "peripheral" and "otg"
   Refer to usb/generic.txt
+- snps,host-dma-disable: disable host DMA mode.
 - g-use-dma: enable dma usage in gadget driver.
 - g-rx-fifo-size: size of rx fifo size in gadget mode.
 - g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode.
-- 
2.10.0

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Re: [PATCH v2 11/13] Documentation: devicetree: dwc2: Add host DMA binding

[Rob Herring]

On Thu, Nov 03, 2016 at 05:56:10PM -0700, John Youn wrote:
> Add the snps,host-dma-disable binding. This controls whether to disable
> DMA in host mode.
> 
> Signed-off-by: John Youn <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/usb/dwc2.txt | 1 +
>  1 file changed, 1 insertion(+)

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