Merge branch 'iomap-write' into linux-gfs2/for-next

Pull in the gfs2 iomap-write changes: Tweak the existing code to
properly support iomap write and eliminate an unnecessary special case
in gfs2_block_map.  Implement iomap write support for buffered and
direct I/O.  Simplify some of the existing code and eliminate code that
is no longer used:

  gfs2: Remove gfs2_write_{begin,end}
  gfs2: iomap direct I/O support
  gfs2: gfs2_extent_length cleanup
  gfs2: iomap buffered write support
  gfs2: Further iomap cleanups

This is based on the following changes on the xfs 'iomap-4.19-merge'
branch:

  iomap: add private pointer to struct iomap
  iomap: add a page_done callback
  iomap: generic inline data handling
  iomap: complete partial direct I/O writes synchronously
  iomap: mark newly allocated buffer heads as new
  fs: factor out a __generic_write_end helper

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index f1425b0f3a54..0894593860d6 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -20,6 +20,16 @@
 		reg = <0x0 0x80000000 0x0 0x60000000>; /* 1536 MB */
 	};
 
+	evm_12v0: fixedregulator-evm_12v0 {
+		/* main supply */
+		compatible = "regulator-fixed";
+		regulator-name = "evm_12v0";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	evm_1v8_sw: fixedregulator-evm_1v8 {
 		compatible = "regulator-fixed";
 		regulator-name = "evm_1v8";
@@ -54,6 +64,48 @@
 		regulator-max-microvolt = <1800000>;
 	};
 
+	evm_3v3: fixedregulator-evm3v3 {
+		/* Output of Cntlr A of TPS43351-Q1 on dra7-evm */
+		compatible = "regulator-fixed";
+		regulator-name = "evm_3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&evm_12v0>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	evm_5v0: fixedregulator-evm_5v0 {
+		/* Output of Cntlr B of TPS43351-Q1 on dra7-evm */
+		compatible = "regulator-fixed";
+		regulator-name = "evm_5v0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&evm_12v0>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	evm_3v6: fixedregulator-evm_3v6 {
+		compatible = "regulator-fixed";
+		regulator-name = "evm_3v6";
+		regulator-min-microvolt = <3600000>;
+		regulator-max-microvolt = <3600000>;
+		vin-supply = <&evm_5v0>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vmmcwl_fixed: fixedregulator-mmcwl {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmcwl_fixed";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&gpio5 8 0>;
+		startup-delay-us = <70000>;
+		enable-active-high;
+	};
+
 	extcon_usb2: extcon_usb2 {
 		compatible = "linux,extcon-usb-gpio";
 		id-gpio = <&pcf_gpio_21 2 GPIO_ACTIVE_HIGH>;
@@ -325,6 +377,7 @@
 	vmmc-supply = <&evm_1v8_sw>;
 	vqmmc-supply = <&evm_1v8_sw>;
 	bus-width = <8>;
+	non-removable;
 	pinctrl-names = "default", "hs", "ddr_1_8v-rev11", "ddr_1_8v", "hs200_1_8v-rev11", "hs200_1_8v";
 	pinctrl-0 = <&mmc2_pins_default>;
 	pinctrl-1 = <&mmc2_pins_hs>;
@@ -334,6 +387,21 @@
 	pinctrl-5 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev20_conf>;
 };
 
+&mmc4 {
+	status = "okay";
+	vmmc-supply = <&evm_3v6>;
+	vqmmc-supply = <&vmmcwl_fixed>;
+	pinctrl-names = "default-rev11", "default", "hs-rev11", "hs", "sdr12-rev11", "sdr12", "sdr25-rev11", "sdr25";
+	pinctrl-0 = <&mmc4_pins_default &mmc4_iodelay_ds_rev11_conf>;
+	pinctrl-1 = <&mmc4_pins_default &mmc4_iodelay_ds_rev20_conf>;
+	pinctrl-2 = <&mmc4_pins_hs &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
+	pinctrl-3 = <&mmc4_pins_hs &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
+	pinctrl-4 = <&mmc4_pins_sdr12 &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
+	pinctrl-5 = <&mmc4_pins_sdr12 &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
+	pinctrl-6 = <&mmc4_pins_sdr25 &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
+	pinctrl-7 = <&mmc4_pins_sdr25 &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
+};
+
 &cpu0 {
 	vdd-supply = <&smps123_reg>;
 };