[PATCH v5 1/2] dt: bindings: add MARVELL's bt-sd8xxx wireless device

Amitkumar Karwar
2016-03-18T11:04:43Z

From: Xinming Hu <huxm-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>

Add device tree binding documentation for MARVELL's bluetooth sdio
(sd8897 and sd8997) chip.

Signed-off-by: Xinming Hu <huxm-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
Signed-off-by: Amitkumar Karwar <akarwar-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
---
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

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