From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Mayer Subject: [PATCH v5 1/2] dt-bindings: brcm: clocks: add binding for brcmstb-cpu-clk-div Date: Wed, 18 Jan 2017 16:29:32 -0800 Message-ID: <20170119002933.7529-2-code@mmayer.net> References: <20170119002933.7529-1-code@mmayer.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170119002933.7529-1-code@mmayer.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Michael Turquette , Stephen Boyd , Rob Herring , Mark Rutland , Viresh Kumar , "Rafael J . Wysocki" , Arnd Bergmann Cc: Device Tree List , Power Management List , Linux Kernel Mailing List , Broadcom Kernel List , Markus Mayer , Linux Clock List , ARM Kernel List List-Id: devicetree@vger.kernel.org From: Markus Mayer Add binding document for brcm,brcmstb-cpu-clk-div. Signed-off-by: Markus Mayer --- .../bindings/clock/brcm,brcmstb-cpu-clk-div.txt | 27 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/brcm,brcmstb-cpu-clk-div.txt diff --git a/Documentation/devicetree/bindings/clock/brcm,brcmstb-cpu-clk-div.txt b/Documentation/devicetree/bindings/clock/brcm,brcmstb-cpu-clk-div.txt new file mode 100644 index 0000000..c4acb53 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/brcm,brcmstb-cpu-clk-div.txt @@ -0,0 +1,27 @@ +The CPU divider node serves as the sole clock for the CPU complex. It supports +power-of-2 clock division, with a divider of "1" as the default highest-speed +setting. + +Required properties: +- compatible: shall be "brcm,brcmstb-cpu-clk-div" +- reg: address and width of the divider configuration register +- #clock-cells: shall be set to 0 +- clocks: phandle of clock provider which provides the source clock + (this would typically be a "fixed-clock" type PLL) +- div-table: list of (raw_value,divider) ordered pairs that correspond to the + allowed clock divider settings +- div-shift-width: least-significant bit position and width of divider value + +Optional properties: +- clock-names: the clock may be named + +Example: + cpuclkdiv: cpu-clk-div@f03e257c { + compatible = "brcm,brcmstb-cpu-clk-div"; + reg = <0xf03e257c 0x4>; + div-table = <0x00 1>; + div-shift-width = <0 5>; + #clock-cells = <0>; + clocks = <&cpupll>; + clock-names = "cpupll"; + }; diff --git a/MAINTAINERS b/MAINTAINERS index cfff2c9..690761d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2786,6 +2786,7 @@ M: bcm-kernel-feedback-list@broadcom.com L: linux-pm@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/cpufreq/brcm,stb-avs-cpu-freq.txt +F: Documentation/devicetree/bindings/clock/brcm,brcmstb-cpu-clk-div.txt F: drivers/cpufreq/brcmstb* BROADCOM SPECIFIC AMBA DRIVER (BCMA) -- 2.7.4