| Marvell 8897/8997 (sd8897/sd8997) bluetooth SDIO devices |
| ------ |
| |
| Required properties: |
| |
| - compatible : should be one of the following: |
| * "marvell,sd8897-bt" |
| * "marvell,sd8997-bt" |
| |
| Optional properties: |
| |
| - marvell,cal-data: Calibration data downloaded to the device during |
| initialization. This is an array of 28 values(u8). |
| |
| - marvell,wakeup-pin: It represents wakeup pin number of the bluetooth chip. |
| firmware will use the pin to wakeup host system (u16). |
| - marvell,wakeup-gap-ms: wakeup gap represents wakeup latency of the host |
| platform. The value will be configured to firmware. This |
| is needed to work chip's sleep feature as expected (u16). |
| - 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 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. |
| wakeup pin 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: bluetooth@2 { |
| compatible = "marvell,sd8897-bt"; |
| reg = <2>; |
| interrupt-parent = <&pio>; |
| interrupts = <119 IRQ_TYPE_LEVEL_LOW>; |
| |
| marvell,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>; |
| marvell,wakeup-pin = /bits/ 16 <0x0d>; |
| marvell,wakeup-gap-ms = /bits/ 16 <0x64>; |
| }; |
| }; |
