Merge tag 'soc-exynos5420-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/late

From Kukjin Kim:

based on tags/common-clk-audio
- add support for exynos5420 SoC

* tag 'soc-exynos5420-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:

  ARM: EXYNOS: extend soft-reset support for EXYNOS5420
  ARM: EXYNOS: add secondary CPU boot base location for EXYNOS5420
  clocksource: exynos_mct: use (request/free)_irq calls for local timer registration
  ARM: dts: Add initial device tree support for EXYNOS5420
  clk: exynos5420: register clocks using common clock framework
  ARM: EXYNOS: use four additional chipid bits to identify EXYNOS family
  serial: samsung: select EXYNOS specific driver data if ARCH_EXYNOS is defined
  ARM: EXYNOS: Add support for EXYNOS5420 SoC
  ARM: dts: list the CPU nodes for EXYNOS5250
  ARM: dts: fork out common EXYNOS5 nodes

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

9 files changed, 378 insertions, 30 deletions

diff --git a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt
new file mode 100644
index 000000000000..a1201802f90d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt
@@ -0,0 +1,64 @@
+* Samsung Audio Subsystem Clock Controller
+
+The Samsung Audio Subsystem clock controller generates and supplies clocks
+to Audio Subsystem block available in the S5PV210 and Exynos SoCs. The clock
+binding described here is applicable to all SoC's in Exynos family.
+
+Required Properties:
+
+- compatible: should be one of the following:
+  - "samsung,exynos4210-audss-clock" - controller compatible with all Exynos4 SoCs.
+  - "samsung,exynos5250-audss-clock" - controller compatible with all Exynos5 SoCs.
+
+- reg: physical base address and length of the controller's register set.
+
+- #clock-cells: should be 1.
+
+The following is the list of clocks generated by the controller. Each clock is
+assigned an identifier and client nodes use this identifier to specify the
+clock which they consume. Some of the clocks are available only on a particular
+Exynos4 SoC and this is specified where applicable.
+
+Provided clocks:
+
+Clock           ID      SoC (if specific)
+-----------------------------------------------
+
+mout_audss      0
+mout_i2s        1
+dout_srp        2
+dout_aud_bus    3
+dout_i2s        4
+srp_clk         5
+i2s_bus         6
+sclk_i2s        7
+pcm_bus         8
+sclk_pcm        9
+
+Example 1: An example of a clock controller node is listed below.
+
+clock_audss: audss-clock-controller@3810000 {
+	compatible = "samsung,exynos5250-audss-clock";
+	reg = <0x03810000 0x0C>;
+	#clock-cells = <1>;
+};
+
+Example 2: I2S controller node that consumes the clock generated by the clock
+           controller. Refer to the standard clock bindings for information
+           about 'clocks' and 'clock-names' property.
+
+i2s0: i2s@03830000 {
+	compatible = "samsung,i2s-v5";
+	reg = <0x03830000 0x100>;
+	dmas = <&pdma0 10
+		&pdma0 9
+		&pdma0 8>;
+	dma-names = "tx", "rx", "tx-sec";
+	clocks = <&clock_audss EXYNOS_I2S_BUS>,
+		<&clock_audss EXYNOS_I2S_BUS>,
+		<&clock_audss EXYNOS_SCLK_I2S>,
+		<&clock_audss EXYNOS_MOUT_AUDSS>,
+		<&clock_audss EXYNOS_MOUT_I2S>;
+	clock-names = "iis", "i2s_opclk0", "i2s_opclk1",
+	"mout_audss", "mout_i2s";
+};
diff --git a/Documentation/devicetree/bindings/clock/exynos4-clock.txt b/Documentation/devicetree/bindings/clock/exynos4-clock.txt
index ea5e26f16aec..14d5c2af26f4 100644
--- a/Documentation/devicetree/bindings/clock/exynos4-clock.txt
+++ b/Documentation/devicetree/bindings/clock/exynos4-clock.txt
@@ -102,6 +102,7 @@ Exynos4 SoC and this is specified where applicable.
   sclk_spi0_isp       174     Exynos4x12
   sclk_spi1_isp       175     Exynos4x12
   sclk_uart_isp       176     Exynos4x12
+  sclk_fimg2d         177
 
 	      [Peripheral Clock Gates]
 
@@ -129,7 +130,7 @@ Exynos4 SoC and this is specified where applicable.
   smmu_mfcl           274
   smmu_mfcr           275
   g3d                 276
-  g2d                 277     Exynos4210
+  g2d                 277
   rotator             278     Exynos4210
   mdma                279     Exynos4210
   smmu_g2d            280     Exynos4210
diff --git a/Documentation/devicetree/bindings/clock/exynos5420-clock.txt b/Documentation/devicetree/bindings/clock/exynos5420-clock.txt
new file mode 100644
index 000000000000..9bcc4b1bff51
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/exynos5420-clock.txt
@@ -0,0 +1,201 @@
+* Samsung Exynos5420 Clock Controller
+
+The Exynos5420 clock controller generates and supplies clock to various
+controllers within the Exynos5420 SoC.
+
+Required Properties:
+
+- comptible: should be one of the following.
+  - "samsung,exynos5420-clock" - controller compatible with Exynos5420 SoC.
+
+- reg: physical base address of the controller and length of memory mapped
+  region.
+
+- #clock-cells: should be 1.
+
+The following is the list of clocks generated by the controller. Each clock is
+assigned an identifier and client nodes use this identifier to specify the
+clock which they consume.
+
+
+       [Core Clocks]
+
+  Clock			ID
+  ----------------------------
+
+  fin_pll		1
+
+  [Clock Gate for Special Clocks]
+
+  Clock			ID
+  ----------------------------
+  sclk_uart0		128
+  sclk_uart1		129
+  sclk_uart2		130
+  sclk_uart3		131
+  sclk_mmc0		132
+  sclk_mmc1		133
+  sclk_mmc2		134
+  sclk_spi0		135
+  sclk_spi1		136
+  sclk_spi2		137
+  sclk_i2s1		138
+  sclk_i2s2		139
+  sclk_pcm1		140
+  sclk_pcm2		141
+  sclk_spdif		142
+  sclk_hdmi		143
+  sclk_pixel		144
+  sclk_dp1		145
+  sclk_mipi1		146
+  sclk_fimd1		147
+  sclk_maudio0		148
+  sclk_maupcm0		149
+  sclk_usbd300		150
+  sclk_usbd301		151
+  sclk_usbphy300	152
+  sclk_usbphy301	153
+  sclk_unipro		154
+  sclk_pwm		155
+  sclk_gscl_wa		156
+  sclk_gscl_wb		157
+
+   [Peripheral Clock Gates]
+
+  Clock			ID
+  ----------------------------
+
+  aclk66_peric		256
+  uart0			257
+  uart1			258
+  uart2			259
+  uart3			260
+  i2c0			261
+  i2c1			262
+  i2c2			263
+  i2c3			264
+  i2c4			265
+  i2c5			266
+  i2c6			267
+  i2c7			268
+  i2c_hdmi		269
+  tsadc			270
+  spi0			271
+  spi1			272
+  spi2			273
+  keyif			274
+  i2s1			275
+  i2s2			276
+  pcm1			277
+  pcm2			278
+  pwm			279
+  spdif			280
+  i2c8			281
+  i2c9			282
+  i2c10			283
+  aclk66_psgen		300
+  chipid		301
+  sysreg		302
+  tzpc0			303
+  tzpc1			304
+  tzpc2			305
+  tzpc3			306
+  tzpc4			307
+  tzpc5			308
+  tzpc6			309
+  tzpc7			310
+  tzpc8			311
+  tzpc9			312
+  hdmi_cec		313
+  seckey		314
+  mct			315
+  wdt			316
+  rtc			317
+  tmu			318
+  tmu_gpu		319
+  pclk66_gpio		330
+  aclk200_fsys2		350
+  mmc0			351
+  mmc1			352
+  mmc2			353
+  sromc			354
+  ufs			355
+  aclk200_fsys		360
+  tsi			361
+  pdma0			362
+  pdma1			363
+  rtic			364
+  usbh20		365
+  usbd300		366
+  usbd301		377
+  aclk400_mscl		380
+  mscl0			381
+  mscl1			382
+  mscl2			383
+  smmu_mscl0		384
+  smmu_mscl1		385
+  smmu_mscl2		386
+  aclk333		400
+  mfc			401
+  smmu_mfcl		402
+  smmu_mfcr		403
+  aclk200_disp1		410
+  dsim1			411
+  dp1			412
+  hdmi			413
+  aclk300_disp1		420
+  fimd1			421
+  smmu_fimd1		422
+  aclk166		430
+  mixer			431
+  aclk266		440
+  rotator		441
+  mdma1			442
+  smmu_rotator		443
+  smmu_mdma1		444
+  aclk300_jpeg		450
+  jpeg			451
+  jpeg2			452
+  smmu_jpeg		453
+  aclk300_gscl		460
+  smmu_gscl0		461
+  smmu_gscl1		462
+  gscl_wa		463
+  gscl_wb		464
+  gscl0			465
+  gscl1			466
+  clk_3aa		467
+  aclk266_g2d		470
+  sss			471
+  slim_sss		472
+  mdma0			473
+  aclk333_g2d		480
+  g2d			481
+  aclk333_432_gscl	490
+  smmu_3aa		491
+  smmu_fimcl0		492
+  smmu_fimcl1		493
+  smmu_fimcl3		494
+  fimc_lite3		495
+  aclk_g3d		500
+  g3d			501
+
+Example 1: An example of a clock controller node is listed below.
+
+	clock: clock-controller@0x10010000 {
+		compatible = "samsung,exynos5420-clock";
+		reg = <0x10010000 0x30000>;
+		#clock-cells = <1>;
+	};
+
+Example 2: UART controller node that consumes the clock generated by the clock
+	   controller. Refer to the standard clock bindings for information
+	   about 'clocks' and 'clock-names' property.
+
+	serial@13820000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x13820000 0x100>;
+		interrupts = <0 54 0>;
+		clocks = <&clock 259>, <&clock 130>;
+		clock-names = "uart", "clk_uart_baud0";
+	};
diff --git a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
index 2b14a940eb75..3f454ffc654a 100644
--- a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
+++ b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
@@ -10,11 +10,16 @@ Required properties:
 	  mapped region.
 
   - interrupts : G2D interrupt number to the CPU.
+  - clocks : from common clock binding: handle to G2D clocks.
+  - clock-names : from common clock binding: must contain "sclk_fimg2d" and
+		  "fimg2d", corresponding to entries in the clocks property.
 
 Example:
 	g2d@12800000 {
 		compatible = "samsung,s5pv210-g2d";
 		reg = <0x12800000 0x1000>;
 		interrupts = <0 89 0>;
+		clocks = <&clock 177>, <&clock 277>;
+		clock-names = "sclk_fimg2d", "fimg2d";
 		status = "disabled";
 	};
diff --git a/Documentation/devicetree/bindings/media/s5p-mfc.txt b/Documentation/devicetree/bindings/media/s5p-mfc.txt
index bf0182d8da25..df37b0230c75 100644
--- a/Documentation/devicetree/bindings/media/s5p-mfc.txt
+++ b/Documentation/devicetree/bindings/media/s5p-mfc.txt
@@ -15,6 +15,9 @@ Required properties:
 	  mapped region.
 
   - interrupts : MFC interrupt number to the CPU.
+  - clocks : from common clock binding: handle to mfc clocks.
+  - clock-names : from common clock binding: must contain "sclk_mfc" and "mfc",
+		  corresponding to entries in the clocks property.
 
   - samsung,mfc-r : Base address of the first memory bank used by MFC
 		    for DMA contiguous memory allocation and its size.
@@ -34,6 +37,8 @@ mfc: codec@13400000 {
 	reg = <0x13400000 0x10000>;
 	interrupts = <0 94 0>;
 	samsung,power-domain = <&pd_mfc>;
+	clocks = <&clock 170>, <&clock 273>;
+	clock-names = "sclk_mfc", "mfc";
 };
 
 Board specific DT entry:
diff --git a/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
index c70fca146e91..e15cfc4bb39e 100644
--- a/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
@@ -21,8 +21,18 @@ Required Properties:
 
   - gpio-controller: identifies the node as a gpio controller and pin bank.
   - #gpio-cells: number of cells in GPIO specifier. Since the generic GPIO
-    binding is used, the amount of cells must be specified as 2. See generic
-    GPIO binding documentation for description of particular cells.
+    binding is used, the amount of cells must be specified as 2. See the below
+    mentioned gpio binding representation for description of particular cells.
+
+	Eg: <&gpx2 6 0>
+	<[phandle of the gpio controller node]
+	[pin number within the gpio controller]
+	[flags]>
+
+	Values for gpio specifier:
+	- Pin number: is a value between 0 to 7.
+	- Flags: 0 - Active High
+		 1 - Active Low
 
 - Pin mux/config groups as child nodes: The pin mux (selecting pin function
   mode) and pin config (pull up/down, driver strength) settings are represented
@@ -266,3 +276,33 @@ Example 4: Set up the default pin state for uart controller.
 
 		pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
 	}
+
+Example 5: A display port client node that supports 'default' pinctrl state
+	   and gpio binding.
+
+	display-port-controller {
+		/* ... */
+
+		samsung,hpd-gpio = <&gpx2 6 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&dp_hpd>;
+	};
+
+Example 6: Request the gpio for display port controller
+
+	static int exynos_dp_probe(struct platform_device *pdev)
+	{
+		int hpd_gpio, ret;
+		struct device *dev = &pdev->dev;
+		struct device_node *dp_node = dev->of_node;
+
+		/* ... */
+
+		hpd_gpio = of_get_named_gpio(dp_node, "samsung,hpd-gpio", 0);
+
+		/* ... */
+
+		ret = devm_gpio_request_one(&pdev->dev, hpd_gpio, GPIOF_IN,
+					    "hpd_gpio");
+		/* ... */
+	}
diff --git a/Documentation/devicetree/bindings/sound/samsung-i2s.txt b/Documentation/devicetree/bindings/sound/samsung-i2s.txt
index 3070046da2e5..025e66b85a43 100644
--- a/Documentation/devicetree/bindings/sound/samsung-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/samsung-i2s.txt
@@ -8,6 +8,16 @@ Required SoC Specific Properties:
 - dmas: list of DMA controller phandle and DMA request line ordered pairs.
 - dma-names: identifier string for each DMA request line in the dmas property.
   These strings correspond 1:1 with the ordered pairs in dmas.
+- clocks: Handle to iis clock and RCLK source clk.
+- clock-names:
+  i2s0 uses some base clks from CMU and some are from audio subsystem internal
+  clock controller. The clock names for i2s0 should be "iis", "i2s_opclk0" and
+  "i2s_opclk1" as shown in the example below.
+  i2s1 and i2s2 uses clocks from CMU. The clock names for i2s1 and i2s2 should
+  be "iis" and "i2s_opclk0".
+  "iis" is the i2s bus clock and i2s_opclk0, i2s_opclk1 are sources of the root
+  clk. i2s0 has internal mux to select the source of root clk and i2s1 and i2s2
+  doesn't have any such mux.
 
 Optional SoC Specific Properties:
 
@@ -20,44 +30,26 @@ Optional SoC Specific Properties:
   then this flag is enabled.
 - samsung,idma-addr: Internal DMA register base address of the audio
   sub system(used in secondary sound source).
-
-Required Board Specific Properties:
-
-- gpios: The gpio specifier for data out,data in, LRCLK, CDCLK and SCLK
-  interface lines. The format of the gpio specifier depends on the gpio
-  controller.
-  The syntax of samsung gpio specifier is
-	<[phandle of the gpio controller node]
-	 [pin number within the gpio controller]
-	 [mux function]
-	 [flags and pull up/down]
-	 [drive strength]>
+- pinctrl-0: Should specify pin control groups used for this controller.
+- pinctrl-names: Should contain only one value - "default".
 
 Example:
 
-- SoC Specific Portion:
-
-i2s@03830000 {
+i2s0: i2s@03830000 {
 	compatible = "samsung,i2s-v5";
 	reg = <0x03830000 0x100>;
 	dmas = <&pdma0 10
 		&pdma0 9
 		&pdma0 8>;
 	dma-names = "tx", "rx", "tx-sec";
+	clocks = <&clock_audss EXYNOS_I2S_BUS>,
+		<&clock_audss EXYNOS_I2S_BUS>,
+		<&clock_audss EXYNOS_SCLK_I2S>;
+	clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
 	samsung,supports-6ch;
 	samsung,supports-rstclr;
 	samsung,supports-secdai;
 	samsung,idma-addr = <0x03000000>;
-};
-
-- Board Specific Portion:
-
-i2s@03830000 {
-	gpios = <&gpz 0 2 0 0>, /* I2S_0_SCLK */
-		<&gpz 1 2 0 0>, /* I2S_0_CDCLK */
-		<&gpz 2 2 0 0>, /* I2S_0_LRCK */
-		<&gpz 3 2 0 0>, /* I2S_0_SDI */
-		<&gpz 4 2 0 0>, /* I2S_0_SDO[1] */
-		<&gpz 5 2 0 0>, /* I2S_0_SDO[2] */
-		<&gpz 6 2 0 0>; /* I2S_0_SDO[3] */
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s0_bus>;
 };
diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index b3abde736017..d967ba16de60 100644
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -48,3 +48,37 @@ Example:
 		clocks = <&clock 285>;
 		clock-names = "usbhost";
 	};
+
+DWC3
+Required properties:
+ - compatible: should be "samsung,exynos5250-dwusb3" for USB 3.0 DWC3
+	       controller.
+ - #address-cells, #size-cells : should be '1' if the device has sub-nodes
+				 with 'reg' property.
+ - ranges: allows valid 1:1 translation between child's address space and
+	   parent's address space
+ - clocks: Clock IDs array as required by the controller.
+ - clock-names: names of clocks correseponding to IDs in the clock property
+
+Sub-nodes:
+The dwc3 core should be added as subnode to Exynos dwc3 glue.
+- dwc3 :
+   The binding details of dwc3 can be found in:
+   Documentation/devicetree/bindings/usb/dwc3.txt
+
+Example:
+	usb@12000000 {
+		compatible = "samsung,exynos5250-dwusb3";
+		clocks = <&clock 286>;
+		clock-names = "usbdrd30";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		dwc3 {
+			compatible = "synopsys,dwc3";
+			reg = <0x12000000 0x10000>;
+			interrupts = <0 72 0>;
+			usb-phy = <&usb2_phy &usb3_phy>;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/video/exynos_dp.txt b/Documentation/devicetree/bindings/video/exynos_dp.txt
index c60da67a5d76..84f10c16cb38 100644
--- a/Documentation/devicetree/bindings/video/exynos_dp.txt
+++ b/Documentation/devicetree/bindings/video/exynos_dp.txt
@@ -21,6 +21,10 @@ Required properties for dp-controller:
 		of memory mapped region.
 	-interrupts:
 		interrupt combiner values.
+	-clocks:
+		from common clock binding: handle to dp clock.
+	-clock-names:
+		from common clock binding: Shall be "dp".
 	-interrupt-parent:
 		phandle to Interrupt combiner node.
 	-samsung,color-space:
@@ -61,6 +65,8 @@ SOC specific portion:
 		reg = <0x145b0000 0x10000>;
 		interrupts = <10 3>;
 		interrupt-parent = <&combiner>;
+		clocks = <&clock 342>;
+		clock-names = "dp";
 
 		dptx-phy {
 			reg = <0x10040720>;