Messages in this thread | | | From | Andrew Chew <> | Date | Tue, 19 Jul 2011 16:50:53 -0700 | Subject | RE: [PATCH 3/3] dt: tegra20: Add ehci nodes to Seaboard. |
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> Although that said, since many of the USB properties are > board-specific > and determined by system characterization, they aren't generally > applicable to all Tegra devices. As such, should those values be moved > into tegra-seaboard.dts instead? Perhaps tegra20.dtsi should specify > the default values that the driver currently uses if not supplied with > platform data though... I think the Seaboard values are the defaults, > which still would make this patch obsolete.
Turns out the ones I put in tegra20.dtsi are NOT the defaults. The defaults are in arch/arm/mach-tegra/usb_phy.c, contained in "utmip_defaults[]".
I think I'm going to put those utmip_defaults[] stuff into tegra20.dtsi, and override them in tegra-seaboard.dts. How's that sound?
And since there are defaults specified in tegra20.dtsi, does it really make sense to also have default values assigned in ehci-tegra.c (for when a property is not present)? I worry that the information is now duplicated. If those properties aren't present, then someone's mucked with the tegra20.dtsi ehci properties.
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