Merge 42b22a6c on remote branch

		 - Del: echo '[h/c]!extension' > /sys/fs/f2fs/<disk>/extension_list

		 - [h] means add/del hot file extension

		 - [c] means add/del cold file extension

What:		/sys/fs/f2fs/<disk>/unusable

Date		April 2019

Contact:	"Daniel Rosenberg" <drosen@google.com>

Description:

		If checkpoint=disable, it displays the number of blocks that are unusable.

                If checkpoint=enable it displays the enumber of blocks that would be unusable

                if checkpoint=disable were to be set.

- SDM429W

  compatible = "qcom,sdm429w"

- SDA429W

  compatible = "qcom,sda429w"

- QM215

  compatible = "qcom, qm215"

- qcom,mmss-ulp-clamp-ctrl-offset:	Specifies the offset for dsi ulps clamp control register.

- qcom,mmss-phyreset-ctrl-offset:	Specifies the offset for dsi phy reset control register.

- qcom,dsi-clk-ln-recovery:		Boolean which enables the clk lane recovery

- qcom,mdss-skip-clamp:			Boolean which skip clamp for lanes.

mdss-dsi-ctrl is a dsi controller device which is treated as a subnode of the mdss-dsi device.

		qcom,max-current = <1500>;

		qcom,max-duration = <1200>;

	};

Example:

flash0: qcom,camera-flash {

		cell-index = <0>;

		compatible = "qcom,qm215-gpio-flash";

		qcom,flash-type = <2>;

		gpios = <&tlmm 34 0>;

			<&tlmm 33 0>;

		qcom,gpio-req-tbl-num = <0 1>;

		qcom,gpio-req-tbl-flags = <1 0>;

		qcom,gpio-flash-en = <0>;

		qcom,gpio-flash-now = <1>;

		qcom,gpio-req-tbl-label = "CAM_FLASH",

			"CAM_TORCH";

		status = "ok";

	};

Example:

	serial@12000 {

		compatible = "marvell,armada-3700-uart";

		reg = <0x12000 0x400>;

		reg = <0x12000 0x200>;

		interrupts = <43>;

	};