Return-Path: From: Amitkumar Karwar To: CC: Cathy Luo , , Nishant Sarmukadam , , Wei-Ning Huang , Xinming Hu , Amitkumar Karwar Subject: [PATCH v5 1/2] dt: bindings: add MARVELL's bt-sd8xxx wireless device Date: Fri, 18 Mar 2016 04:04:43 -0700 Message-ID: <1458299084-31976-1-git-send-email-akarwar@marvell.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: From: Xinming Hu Add device tree binding documentation for MARVELL's bluetooth sdio (sd8897 and sd8997) chip. Signed-off-by: Xinming Hu Signed-off-by: Amitkumar Karwar --- Listing changelist for both 1/2 and 2/2 here v2: Fixed build error reported by kbuild test robot drivers/bluetooth/btmrvl_platform.c:141:22: error: 'btmrvl_plt_pm_ops' undeclared here (not in a function) v3: Add NULL check for 'btmrvl_plt_dev' v4: Moved the bindings file to bindings/net/ Corrected the name of 'name' and 'compatible' properties(Rob Herring) v5: Comments for wlan patches were applicable here as well. Like all binding changes in single file, specifying node as a child of SDIO controller. --- Documentation/devicetree/bindings/btmrvl.txt | 29 ------------ .../devicetree/bindings/net/marvell-bt-sd8xxx.txt | 55 ++++++++++++++++++++++ 2 files changed, 55 insertions(+), 29 deletions(-) delete mode 100644 Documentation/devicetree/bindings/btmrvl.txt create mode 100644 Documentation/devicetree/bindings/net/marvell-bt-sd8xxx.txt diff --git a/Documentation/devicetree/bindings/btmrvl.txt b/Documentation/devicetree/bindings/btmrvl.txt deleted file mode 100644 index 58f964b..0000000 --- a/Documentation/devicetree/bindings/btmrvl.txt +++ /dev/null @@ -1,29 +0,0 @@ -btmrvl ------- - -Required properties: - - - compatible : must be "btmrvl,cfgdata" - -Optional properties: - - - btmrvl,cal-data : Calibration data downloaded to the device during - initialization. This is an array of 28 values(u8). - - - btmrvl,gpio-gap : gpio and gap (in msecs) combination to be - configured. - -Example: - -GPIO pin 13 is configured as a wakeup source and GAP is set to 100 msecs -in below example. - -btmrvl { - compatible = "btmrvl,cfgdata"; - - btmrvl,cal-data = /bits/ 8 < - 0x37 0x01 0x1c 0x00 0xff 0xff 0xff 0xff 0x01 0x7f 0x04 0x02 - 0x00 0x00 0xba 0xce 0xc0 0xc6 0x2d 0x00 0x00 0x00 0x00 0x00 - 0x00 0x00 0xf0 0x00>; - btmrvl,gpio-gap = <0x0d64>; -}; diff --git a/Documentation/devicetree/bindings/net/marvell-bt-sd8xxx.txt b/Documentation/devicetree/bindings/net/marvell-bt-sd8xxx.txt new file mode 100644 index 0000000..b031431 --- /dev/null +++ b/Documentation/devicetree/bindings/net/marvell-bt-sd8xxx.txt @@ -0,0 +1,55 @@ +Marvell 8897/8997 (sd8897/sd8997) bluetooth SDIO devices +------ + +Required properties: + + - compatible : should be one of the following: + * "marvell,bt-sd8897" + * "marvell,bt-sd8997" + +Optional properties: + + - btmrvl,cal-data : Calibration data downloaded to the device during + initialization. This is an array of 28 values(u8). + + - btmrvl,wakeuppin-gap : wakeup pin and gap (in msecs) combination to be + configured to firmware. 'wakeuppin' is a wakeup pin number + of bluetooth chip. 'gap' is a wakeup latency of a host platform. + This is needed to work chip's sleep feature as expected. + - interrupt-parent: phandle of the parent interrupt controller + - interrupts : interrupt pin number to the cpu. driver will request an irq based on + this interrupt number. during system suspend, the irq will be enabled + as system wakeup source, so that the bluetooth chip can wakeup host + platform under certain condition. during system resume, the irq will + be disabled to make sure unnecessary interrupt is not received. + +Example: + +IRQ pin 119 is used as system wakeup source interrupt. +wakeuppin 13 and gap 100ms are configured so that firmware can wakeup host +using this device side pin and wakeup latency. +calibration data is also available in below example. + +&mmc3 { + status = "okay"; + vmmc-supply = <&wlan_en_reg>; + bus-width = <4>; + cap-power-off-card; + keep-power-in-suspend; + + #address-cells = <1>; + #size-cells = <0>; + btmrvl: btmrvl@3 { + compatible = "marvell,bt-sd8897"; + reg = <2>; + interrupt-parent = <&pio>; + interrupts = <119 IRQ_TYPE_LEVEL_LOW>; + + btmrvl,cal-data = /bits/ 8 < + 0x37 0x01 0x1c 0x00 0xff 0xff 0xff 0xff 0x01 0x7f 0x04 0x02 + 0x00 0x00 0xba 0xce 0xc0 0xc6 0x2d 0x00 0x00 0x00 0x00 0x00 + 0x00 0x00 0xf0 0x00>; + btmrvl,wakeuppin-gap = <0x0d64>; + }; +}; + -- 1.8.1.4