From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Tue, 29 Jul 2014 11:55:39 +0200 Subject: [PATCH v15 06/12] document: dt: add the binding on HiP04 clock In-Reply-To: References: <1406555876-11989-1-git-send-email-haojian.zhuang@linaro.org> <20140728175418.GD2576@leverpostej> Message-ID: <2049238.Bp7AxcFkea@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tuesday 29 July 2014 10:25:49 Haojian Zhuang wrote: > On 29 July 2014 01:54, Mark Rutland wrote: > > On Mon, Jul 28, 2014 at 02:57:50PM +0100, Haojian Zhuang wrote: > >> The DT binding for Hisilicon HiP04 clock driver. > >> > >> Signed-off-by: Haojian Zhuang > >> --- > >> .../devicetree/bindings/clock/hip04-clock.txt | 20 ++++++++++++++++++++ > >> 1 file changed, 20 insertions(+) > >> create mode 100644 Documentation/devicetree/bindings/clock/hip04-clock.txt > >> > >> diff --git a/Documentation/devicetree/bindings/clock/hip04-clock.txt b/Documentation/devicetree/bindings/clock/hip04-clock.txt > >> new file mode 100644 > >> index 0000000..4d31ae3 > >> --- /dev/null > >> +++ b/Documentation/devicetree/bindings/clock/hip04-clock.txt > >> @@ -0,0 +1,20 @@ > >> +* Hisilicon HiP04 Clock Controller > >> + > >> +The HiP04 clock controller generates and supplies clock to various > >> +controllers within the HiP04 SoC. > >> + > >> +Required Properties: > >> + > >> +- compatible: should be one of the following. > >> + - "hisilicon,hip04-clock" - controller compatible with HiP04 SoC. > > > > There's only one clock controller on-board and it's custom for HiP04? > > > > Since all those PLL settings are configured in bootloader, kernel > don't need to configure it again. > > By the way, I don't have the manual to configure those PLLs. All the clocks > are defined as fixed in kernel side. > If all the clocks are fixed-rate, you don't actually need a driver for them, just use the regular fixed-rate clock and define one node per clock. Arnd