From mboxrd@z Thu Jan 1 00:00:00 1970 From: dmitry.torokhov@gmail.com (Dmitry Torokhov) Date: Mon, 23 Feb 2015 09:49:13 -0800 Subject: [PATCH 1/2] Input: bcm-keypad: add device tree bindings In-Reply-To: <20150216051751.GA15948@dtor-ws> References: <1423526861-29579-1-git-send-email-sbranden@broadcom.com> <1423526861-29579-2-git-send-email-sbranden@broadcom.com> <20150210005134.GA13695@dtor-ws> <54DF7C8B.3050103@broadcom.com> <20150216051751.GA15948@dtor-ws> Message-ID: <20150223174913.GB604@dtor-glaptop> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Scott, On Sun, Feb 15, 2015 at 09:17:51PM -0800, Dmitry Torokhov wrote: > On Sat, Feb 14, 2015 at 08:49:15AM -0800, Scott Branden wrote: > > On 15-02-09 04:51 PM, Dmitry Torokhov wrote: > > >On Mon, Feb 09, 2015 at 04:07:40PM -0800, Scott Branden wrote: > > >>+ > > >>+- col-debounce-filter-period: The debounce period for the Column filter. > > >>+ > > >>+ KEYPAD_DEBOUNCE_1_ms = 0 > > >>+ KEYPAD_DEBOUNCE_2_ms = 1 > > >>+ KEYPAD_DEBOUNCE_4_ms = 2 > > >>+ KEYPAD_DEBOUNCE_8_ms = 3 > > > > > >>+ KEYPAD_DEBOUNCE_16_ms = 4 > > >>+ KEYPAD_DEBOUNCE_32_ms = 5 > > >>+ KEYPAD_DEBOUNCE_64_ms = 6 > > >>+ KEYPAD_DEBOUNCE_128_ms = 7 > > >>+ > > >>+- status-debounce-filter-period: The debounce period for the Status filter. > > >>+ > > >>+ KEYPAD_DEBOUNCE_1_ms = 0 > > >>+ KEYPAD_DEBOUNCE_2_ms = 1 > > >>+ KEYPAD_DEBOUNCE_4_ms = 2 > > >>+ KEYPAD_DEBOUNCE_8_ms = 3 > > >>+ KEYPAD_DEBOUNCE_16_ms = 4 > > >>+ KEYPAD_DEBOUNCE_32_ms = 5 > > >>+ KEYPAD_DEBOUNCE_64_ms = 6 > > >>+ KEYPAD_DEBOUNCE_128_ms = 7 > > > > > >I could swear device-specific properties should be in form of > > >, to ensure it won't clash with changes on > > >subsystem level later on. Device-tree folks, what say you? > > I see examples with and without vendor-prefix. > > qcom,pm8xxx-keypad.txt does not have prefixes > > st-keyscan.txt does have a prefix > > > > I can't find any documented guidelines for this. > > As I mentioned I'll try to get clarification on this. I have chatted with a couple of people on this and it is acceptable to omit vendor prefix in bindings when we are using a specific driver like we have here (i.e. when driver's compatible string already includes vendor prefix). Vendor prefixes on properties are required when we augment a generic driver's binding. So the above 2 entries are fine as is. Thanks. -- Dmitry