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Commit a47aaa69 authored by Raja Mani's avatar Raja Mani Committed by Kalle Valo
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dt: bindings: add new dt entry for pre calibration in qcom, ath10k.txt 



There two things done in this patch,

1) Existing device tree entry 'qcom,ath10k-calibration-data' carries
   not only calibration data, it carries board specific data too.
   So, make appropriate update in doc.

2) ipq4019 wifi needs new devie tree entry to carry calibration
   data alone (called pre cal data, it doesn't include any other info).
   Using 'qcom,ath10k-calibration-data' for ipq4019 would alter
   the purpose of it. Hence, add new device tree entry called
   'qcom,ath10k-pre-calibration-data' to carry only pre calibration data.

Signed-off-by: default avatarRaja Mani <rmani@qti.qualcomm.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 8866c727

Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt

+16 −7
Original line number Diff line number Diff line
@@ -5,12 +5,18 @@ Required properties: 
	* "qcom,ath10k"

	* "qcom,ipq4019-wifi"



PCI based devices uses compatible string "qcom,ath10k" and takes only

calibration data via "qcom,ath10k-calibration-data". Rest of the properties

are not applicable for PCI based devices.

PCI based devices uses compatible string "qcom,ath10k" and takes calibration

data along with board specific data via "qcom,ath10k-calibration-data".

Rest of the properties are not applicable for PCI based devices.



AHB based devices (i.e. ipq4019) uses compatible string "qcom,ipq4019-wifi"

and also uses most of the properties defined in this doc.

and also uses most of the properties defined in this doc (except

"qcom,ath10k-calibration-data"). It uses "qcom,ath10k-pre-calibration-data"

to carry pre calibration data.



In general, entry "qcom,ath10k-pre-calibration-data" and

"qcom,ath10k-calibration-data" conflict with each other and only one

can be provided per device.



Optional properties:

- reg: Address and length of the register set for the device.
@@ -35,8 +41,11 @@ Optional properties: 
- qcom,msi_addr: MSI interrupt address.

- qcom,msi_base: Base value to add before writing MSI data into

		MSI address register.

- qcom,ath10k-calibration-data : calibration data as an array, the

				 length can vary between hw versions

- qcom,ath10k-calibration-data : calibration data + board specific data

				 as an array, the length can vary between

				 hw versions.

- qcom,ath10k-pre-calibration-data : pre calibration data as an array,

				     the length can vary between hw versions.



Example (to supply the calibration data alone):
@@ -105,5 +114,5 @@ wifi0: wifi@a000000 { 
			  "legacy";

	qcom,msi_addr = <0x0b006040>;

	qcom,msi_base = <0x40>;

	qcom,ath10k-calibration-data = [ 01 02 03 ... ];

	qcom,ath10k-pre-calibration-data = [ 01 02 03 ... ];

};