projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 0065d1c5 XH |
1 | Marvell 8897/8997 (sd8897/sd8997) bluetooth SDIO devices |
| 2 | ------ | |
| 3 | ||
| 4 | Required properties: | |
| 5 | ||
| 6 | - compatible : should be one of the following: | |
| 7 | * "marvell,sd8897-bt" | |
| 8 | * "marvell,sd8997-bt" | |
| 9 | ||
| 10 | Optional properties: | |
| 11 | ||
| 12 | - marvell,cal-data: Calibration data downloaded to the device during | |
| 13 | initialization. This is an array of 28 values(u8). | |
| 14 | ||
| 15 | - marvell,wakeup-pin: It represents wakeup pin number of the bluetooth chip. | |
| 53e1941c | 16 | firmware will use the pin to wakeup host system (u16). |
| 0065d1c5 XH |
17 | - marvell,wakeup-gap-ms: wakeup gap represents wakeup latency of the host |
| 18 | platform. The value will be configured to firmware. This | |
| 53e1941c | 19 | is needed to work chip's sleep feature as expected (u16). |
| 0065d1c5 XH |
20 | - interrupt-parent: phandle of the parent interrupt controller |
| 21 | - interrupts : interrupt pin number to the cpu. Driver will request an irq based | |
| 22 | on this interrupt number. During system suspend, the irq will be | |
| 23 | enabled so that the bluetooth chip can wakeup host platform under | |
| 24 | certain condition. During system resume, the irq will be disabled | |
| 25 | to make sure unnecessary interrupt is not received. | |
| 26 | ||
| 27 | Example: | |
| 28 | ||
| 29 | IRQ pin 119 is used as system wakeup source interrupt. | |
| 30 | wakeup pin 13 and gap 100ms are configured so that firmware can wakeup host | |
| 31 | using this device side pin and wakeup latency. | |
| 32 | calibration data is also available in below example. | |
| 33 | ||
| 34 | &mmc3 { | |
| 35 | status = "okay"; | |
| 36 | vmmc-supply = <&wlan_en_reg>; | |
| 37 | bus-width = <4>; | |
| 38 | cap-power-off-card; | |
| 39 | keep-power-in-suspend; | |
| 40 | ||
| 41 | #address-cells = <1>; | |
| 42 | #size-cells = <0>; | |
| 43 | btmrvl: bluetooth@2 { | |
| 44 | compatible = "marvell,sd8897-bt"; | |
| 45 | reg = <2>; | |
| 46 | interrupt-parent = <&pio>; | |
| 47 | interrupts = <119 IRQ_TYPE_LEVEL_LOW>; | |
| 48 | ||
| 49 | marvell,cal-data = /bits/ 8 < | |
| 50 | 0x37 0x01 0x1c 0x00 0xff 0xff 0xff 0xff 0x01 0x7f 0x04 0x02 | |
| 51 | 0x00 0x00 0xba 0xce 0xc0 0xc6 0x2d 0x00 0x00 0x00 0x00 0x00 | |
| 52 | 0x00 0x00 0xf0 0x00>; | |
| 53e1941c WNH |
53 | marvell,wakeup-pin = /bits/ 16 <0x0d>; |
| 54 | marvell,wakeup-gap-ms = /bits/ 16 <0x64>; | |
| 0065d1c5 XH |
55 | }; |
| 56 | }; |