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| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2021-03-28 01:54:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-28 14:07:18 +0200 |
| commit | d00be779cc5016a1f4cc414e25fc45a9df40ffaf (patch) | |
| tree | 38af462b7cd46f56e64be8a87df9a7543e04aa18 /drivers/usb/dwc3/gadget.c | |
| parent | dt-bindings: usb: usb-nop-xceiv: Convert to DT schema (diff) | |
| download | linux-d00be779cc5016a1f4cc414e25fc45a9df40ffaf.tar.xz linux-d00be779cc5016a1f4cc414e25fc45a9df40ffaf.zip | |
usb: dwc3: Create helper function getting MDWIDTH
Different controller IPs check different HW parameters for MDWIDTH.
To help with maintainability, create a helper function to consolidate
the logic in a single place.
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/456329d36e8c188df5c234f3282595b630bf1470.1616892233.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 8a361f07e045..1a0d53e245f0 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2337,9 +2337,7 @@ static void dwc3_gadget_setup_nump(struct dwc3 *dwc) u32 reg; ram2_depth = DWC3_GHWPARAMS7_RAM2_DEPTH(dwc->hwparams.hwparams7); - mdwidth = DWC3_GHWPARAMS0_MDWIDTH(dwc->hwparams.hwparams0); - if (DWC3_IP_IS(DWC32)) - mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6); + mdwidth = dwc3_mdwidth(dwc); nump = ((ram2_depth * mdwidth / 8) - 24 - 16) / 1024; nump = min_t(u32, nump, 16); @@ -2575,12 +2573,10 @@ static int dwc3_gadget_init_control_endpoint(struct dwc3_ep *dep) static int dwc3_gadget_init_in_endpoint(struct dwc3_ep *dep) { struct dwc3 *dwc = dep->dwc; - int mdwidth; + u32 mdwidth; int size; - mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0); - if (DWC3_IP_IS(DWC32)) - mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6); + mdwidth = dwc3_mdwidth(dwc); /* MDWIDTH is represented in bits, we need it in bytes */ mdwidth /= 8; @@ -2622,12 +2618,10 @@ static int dwc3_gadget_init_in_endpoint(struct dwc3_ep *dep) static int dwc3_gadget_init_out_endpoint(struct dwc3_ep *dep) { struct dwc3 *dwc = dep->dwc; - int mdwidth; + u32 mdwidth; int size; - mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0); - if (DWC3_IP_IS(DWC32)) - mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6); + mdwidth = dwc3_mdwidth(dwc); /* MDWIDTH is represented in bits, convert to bytes */ mdwidth /= 8; |