usb: dwc3: debugfs: Dump internal LSP and ep registers

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To dump internal LSP and endpoint state debug registers, we must write
to GDBGLSPMUX register. This patch correctly dump LSP and endpoint
states from the debug registers.

If the controller is in device mode, all LSP and endpoint state
registers will be dumped via the debugfs attribute "lsp_dump". In host
mode, the user has to write the LSP number to "lsp_dump" to dump a
specific LSP selection.

Fixes: 80b776340c ("usb: dwc3: Dump LSP and BMU debug info")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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This commit is contained in:

Thinh Nguyen 2018-11-07 17:55:13 -08:00 • committed by Felipe Balbi

parent 0f874f79dc

commit 62ba09d6bb

2 changed files with 154 additions and 4 deletions

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13

drivers/usb/dwc3/core.h

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145

drivers/usb/dwc3/debugfs.c

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