On 9/29/2015 5:54 AM, Stefan Monnier wrote: > [ In the context of Emacs's dts-mode (http://elpa.gnu.org/packages/dts-mode). > ] > > I recently came across the following piece of DTS code: > > &usbphy { > /* Unset otg detect pins as we force dr_mode */ > /delete-property/ usb0_id_det-gpio; > /delete-property/ usb0_vbus_det-gpio; > }; > > and was wondering how dts-mode should understand this. `dts-mode' > doesn't try to understand the actual *meaning* of such code, but it does > try to understand the syntax (i.e. how the abstract-syntax-tree would > look like). > > Is "/delete-property/" is special syntax in itself, or is it a special > case of a more general syntax (like "/.../ blabla;")? Where exactly is > it allowed to appear? > Could someone point me to some documentation explaining/describing this > syntax? > > > Stefan
The best documentation that I know of for this is the lexer source at: https://git.kernel.org/cgit/utils/dtc/dtc.git/tree/dtc-lexer.l The lexer detects tokens for "/delete-property/" and "/delete-node/" at lines 128 - 140. -Frank -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
