Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kerne…

…l/git/clk/linux

Pull clk subsystem updates from Stephen Boyd:
 "We have a fairly balanced mix of clk driver updates and clk framework
  updates this time around. It's the usual pile of new drivers for new
  hardware out there and the normal small fixes and updates, but then we
  have some core framework changes too.

  In the core framework, we introduce support for a clk_get_optional()
  API to get clks that may not always be populated and a way to devm
  manage clkdev lookups registered by provider drivers. We also do some
  refactoring to simplify the interface between clkdev and the common
  clk framework so we can reuse the DT parsing and clk_get() path in
  provider drivers in the future. This work will continue in the next
  few cycles while we convert how providers specify clk parents.

  On the driver side, the biggest part of the dirstat is the Amlogic clk
  driver that got support for the G12A SoC. It dominates with almost
  half the overall diff, while the second largest part of the diff is in
  the i.MX clk driver that gained support for imx8mm SoCs. After that,
  we have the Actions Semiconductor and Qualcomm drivers rounding out
  the big part of the dirstat because they both got new hardware support
  for SoCs. The rest is just various updates and non-critical fixes for
  existing drivers.

  Core:
   - Convert a few clk bindings to JSON schema format
   - Add a {devm_}clk_get_optional() API
   - Add devm_clk_hw_register_clkdev() API to manage clkdev lookups
   - Start rewriting clk parent registration and supporting device links
     by moving around code that supports clk_get() and DT parsing of the
     'clocks' property

  New Drivers:
   - Add Qualcomm MSM8998 RPM managed clks
   - IPA clk support on Qualcomm RPMh clk controllers
   - Actions Semi S500 SoC clk support
   - Support for fixed rate clks populated from an MMIO register
   - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car V3H
   - Add TMU (timer) clocks on Renesas RZ/G2E
   - Add Amlogic G12A Always-On Clock Controller
   - Add 32k clock generation for Amlogic AXG
   - Add support for the Mali GPU clocks on Amlogic Meson8
   - Add Amlogic G12A EE clock controller driver
   - Add missing CANFD clocks on Renesas RZ/G2M and RZ/G2E
   - Add i.MX8MM SoC clk driver support

  Removed Drivers:
   - Remove clps711x driver as the board support is gone

  Updates:
   - 3rd ECO fix for Mediatek MT2712 SoCs
   - Updates for Qualcomm MSM8998 GCC clks
   - Random static analysis fixes for clk drivers
   - Support for sleeping gpios in the clk-gpio type
   - Minor fixes for STM32MP1 clk driver (parents, critical flag, etc.)
   - Split LCDC into two clks on the Marvell MMP2 SoC
   - Various DT of_node refcount fixes
   - Get rid of CLK_IS_BASIC from TI code (yay!)
   - TI Autoidle clk support
   - Fix Amlogic Meson8 APB clock ID name
   - Claim input clocks through DT for Amlogic AXG and GXBB
   - Correct the DU (display unit) parent clock on Renesas RZ/G2E
   - Exynos5433 IMEM CMU crypto clk support (SlimSS)
   - Fix for the PLL-MIPI on the Allwinner A23
   - Fix Rockchip rk3328 PLL rate calculation
   - Add SET_RATE_PARENT flag on display clk of Rockhip rk3066
   - i.MX SCU clk driver clk_set_parent() and cpufreq support"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (150 commits)
  dt-bindings: clock: imx8mq: Fix numbering overlaps and gaps
  clk: ti: clkctrl: Fix clkdm_name regression for TI_CLK_CLKCTRL_COMPAT
  clk: fixup default index for of_clk_get_by_name()
  clk: Move of_clk_*() APIs into clk.c from clkdev.c
  clk: Inform the core about consumer devices
  clk: Introduce of_clk_get_hw_from_clkspec()
  clk: core: clarify the check for runtime PM
  clk: Combine __clk_get() and __clk_create_clk()
  clk: imx8mq: add GPIO clocks to clock tree
  clk: mediatek: correct cpu clock name for MT8173 SoC
  clk: imx: Refactor entire sccg pll clk
  clk: imx: scu: add cpu frequency scaling support
  clk: mediatek: Mark bus and DRAM related clocks as critical
  clk: mediatek: Add flags to mtk_gate
  clk: mediatek: Add MUX_FLAGS macro
  clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocks
  clk: ingenic: Remove set but not used variable 'enable'
  clk: at91: programmable: remove unneeded register read
  clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel
  clk: mediatek: add MUX_GATE_FLAGS_2
  ...

Documentation/devicetree/bindings/clock/actions,owl-cmu.txt

@@ -2,13 +2,14 @@
 
 The Actions Semi Owl Clock Management Unit generates and supplies clock
 to various controllers within the SoC. The clock binding described here is
-applicable to S900 and S700 SoC's.
+applicable to S900, S700 and S500 SoC's.
 
 Required Properties:
 
 - compatible: should be one of the following,
 	"actions,s900-cmu"
 	"actions,s700-cmu"
+	"actions,s500-cmu"
 - reg: physical base address of the controller and length of memory mapped
   region.
 - clocks: Reference to the parent clocks ("hosc", "losc")
@@ -19,8 +20,8 @@ Each clock is assigned an identifier, and client nodes can use this identifier
 to specify the clock which they consume.
 
 All available clocks are defined as preprocessor macros in corresponding
-dt-bindings/clock/actions,s900-cmu.h or actions,s700-cmu.h header and can be
-used in device tree sources.
+dt-bindings/clock/actions,s900-cmu.h or actions,s700-cmu.h or
+actions,s500-cmu.h header and can be used in device tree sources.
 
 External clocks:
 

Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt

@@ -10,6 +10,7 @@ Required Properties:
 	- GXL (S905X, S905D) : "amlogic,meson-gxl-aoclkc"
 	- GXM (S912) : "amlogic,meson-gxm-aoclkc"
 	- AXG (A113D, A113X) : "amlogic,meson-axg-aoclkc"
+	- G12A (S905X2, S905D2, S905Y2) : "amlogic,meson-g12a-aoclkc"
 	followed by the common "amlogic,meson-gx-aoclkc"
 - clocks: list of clock phandle, one for each entry clock-names.
 - clock-names: should contain the following:

Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt

@@ -9,6 +9,7 @@ Required Properties:
 		"amlogic,gxbb-clkc" for GXBB SoC,
 		"amlogic,gxl-clkc" for GXL and GXM SoC,
 		"amlogic,axg-clkc" for AXG SoC.
+		"amlogic,g12a-clkc" for G12A SoC.
 - clocks : list of clock phandle, one for each entry clock-names.
 - clock-names : should contain the following:
   * "xtal": the platform xtal

Documentation/devicetree/bindings/clock/exynos5433-clock.txt

@@ -50,6 +50,8 @@ Required Properties:
     IPs.
   - "samsung,exynos5433-cmu-cam1" - clock controller compatible for CMU_CAM1
     which generates clocks for Cortex-A5/MIPI_CSIS2/FIMC-LITE_C/FIMC-FD IPs.
+  - "samsung,exynos5433-cmu-imem"   - clock controller compatible for CMU_IMEM
+    which generates clocks for SSS (Security SubSystem) and SlimSSS IPs.
 
 - reg: physical base address of the controller and length of memory mapped
   region.
@@ -168,6 +170,12 @@ Required Properties:
 		- aclk_cam1_400
 		- aclk_cam1_552
 
+	Input clocks for imem clock controller:
+		- oscclk
+		- aclk_imem_sssx_266
+		- aclk_imem_266
+		- aclk_imem_200
+
 Optional properties:
   - power-domains: a phandle to respective power domain node as described by
 	generic PM domain bindings (see power/power_domain.txt for more
@@ -469,6 +477,21 @@ Example 2: Examples of clock controller nodes are listed below.
 		power-domains = <&pd_cam1>;
 	};
 
+	cmu_imem: clock-controller@11060000 {
+		compatible = "samsung,exynos5433-cmu-imem";
+		reg = <0x11060000 0x1000>;
+		#clock-cells = <1>;
+
+		clock-names = "oscclk",
+			"aclk_imem_sssx_266",
+			"aclk_imem_266",
+			"aclk_imem_200";
+		clocks = <&xxti>,
+			<&cmu_top CLK_DIV_ACLK_IMEM_SSSX_266>,
+			<&cmu_top CLK_DIV_ACLK_IMEM_266>,
+			<&cmu_top CLK_DIV_ACLK_IMEM_200>;
+	};
+
 Example 3: UART controller node that consumes the clock generated by the clock
 	   controller.
 

Documentation/devicetree/bindings/clock/fixed-clock.yaml

@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fixed-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for simple fixed-rate clock sources
+
+maintainers:
+  - Michael Turquette <mturquette@baylibre.com>
+  - Stephen Boyd <sboyd@kernel.org>
+
+properties:
+  compatible:
+    const: fixed-clock
+
+  "#clock-cells":
+    const: 0
+
+  clock-frequency: true
+
+  clock-accuracy:
+    description: accuracy of clock in ppb (parts per billion).
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  clock-output-names:
+    maxItems: 1
+
+required:
+  - compatible
+  - "#clock-cells"
+  - clock-frequency
+
+additionalProperties: false
+
+examples:
+  - |
+    clock {
+      compatible = "fixed-clock";
+      #clock-cells = <0>;
+      clock-frequency = <1000000000>;
+      clock-accuracy = <100>;
+    };
+...

Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml

@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fixed-factor-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for simple fixed factor rate clock sources
+
+maintainers:
+  - Michael Turquette <mturquette@baylibre.com>
+  - Stephen Boyd <sboyd@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - allwinner,sun4i-a10-pll3-2x-clk
+      - fixed-factor-clock
+
+  "#clock-cells":
+    const: 0
+
+  clocks:
+    maxItems: 1
+
+  clock-div:
+    description: Fixed divider
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - minimum: 1
+
+  clock-mult:
+    description: Fixed multiplier
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  clock-output-names:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - "#clock-cells"
+  - clock-div
+  - clock-mult
+
+additionalProperties: false
+
+examples:
+  - |
+    clock {
+      compatible = "fixed-factor-clock";
+      clocks = <&parentclk>;
+      #clock-cells = <0>;
+      clock-div = <2>;
+      clock-mult = <1>;
+    };
+...

Documentation/devicetree/bindings/clock/fixed-mmio-clock.txt

@@ -0,0 +1,24 @@
+Binding for simple memory mapped io fixed-rate clock sources.
+The driver reads a clock frequency value from a single 32-bit memory mapped
+I/O register and registers it as a fixed rate clock.
+
+It was designed for test systems, like FPGA, not for complete, finished SoCs.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be "fixed-mmio-clock".
+- #clock-cells : from common clock binding; shall be set to 0.
+- reg : Address and length of the clock value register set.
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+sysclock: sysclock@fd020004 {
+	#clock-cells = <0>;
+	compatible = "fixed-mmio-clock";
+	reg = <0xfd020004 0x4>;
+};

Documentation/devicetree/bindings/clock/imx8mm-clock.txt

@@ -0,0 +1,29 @@
+* Clock bindings for NXP i.MX8M Mini
+
+Required properties:
+- compatible: Should be "fsl,imx8mm-ccm"
+- reg: Address and length of the register set
+- #clock-cells: Should be <1>
+- clocks: list of clock specifiers, must contain an entry for each required
+          entry in clock-names
+- clock-names: should include the following entries:
+    - "osc_32k"
+    - "osc_24m"
+    - "clk_ext1"
+    - "clk_ext2"
+    - "clk_ext3"
+    - "clk_ext4"
+
+clk: clock-controller@30380000 {
+	compatible = "fsl,imx8mm-ccm";
+	reg = <0x0 0x30380000 0x0 0x10000>;
+	#clock-cells = <1>;
+	clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>, <&clk_ext2>,
+		 <&clk_ext3>, <&clk_ext4>;
+	clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
+		      "clk_ext3", "clk_ext4";
+};
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8mm-clock.h
+for the full list of i.MX8M Mini clock IDs.

Documentation/devicetree/bindings/clock/qcom,rpmcc.txt

@@ -16,6 +16,7 @@ Required properties :
 			"qcom,rpmcc-msm8974", "qcom,rpmcc"
 			"qcom,rpmcc-apq8064", "qcom,rpmcc"
 			"qcom,rpmcc-msm8996", "qcom,rpmcc"
+			"qcom,rpmcc-msm8998", "qcom,rpmcc"
 			"qcom,rpmcc-qcs404", "qcom,rpmcc"
 
 - #clock-cells : shall contain 1

Documentation/driver-model/devres.txt

@@ -242,9 +242,11 @@ certainly invest a bit more effort into libata core layer).
 
 CLOCK
   devm_clk_get()
+  devm_clk_get_optional()
   devm_clk_put()
   devm_clk_hw_register()
   devm_of_clk_add_hw_provider()
+  devm_clk_hw_register_clkdev()
 
 DMA
   dmaenginem_async_device_register()

arch/arm/mach-omap2/omap_hwmod.c

@@ -1002,8 +1002,10 @@ static int _enable_clocks(struct omap_hwmod *oh)
 		clk_enable(oh->_clk);
 
 	list_for_each_entry(os, &oh->slave_ports, node) {
-		if (os->_clk && (os->flags & OCPIF_SWSUP_IDLE))
+		if (os->_clk && (os->flags & OCPIF_SWSUP_IDLE)) {
+			omap2_clk_deny_idle(os->_clk);
 			clk_enable(os->_clk);
+		}
 	}
 
 	/* The opt clocks are controlled by the device driver. */
@@ -1055,8 +1057,10 @@ static int _disable_clocks(struct omap_hwmod *oh)
 		clk_disable(oh->_clk);
 
 	list_for_each_entry(os, &oh->slave_ports, node) {
-		if (os->_clk && (os->flags & OCPIF_SWSUP_IDLE))
+		if (os->_clk && (os->flags & OCPIF_SWSUP_IDLE)) {
 			clk_disable(os->_clk);
+			omap2_clk_allow_idle(os->_clk);
+		}
 	}
 
 	if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
@@ -2436,9 +2440,13 @@ static void _setup_iclk_autoidle(struct omap_hwmod *oh)
 			continue;
 
 		if (os->flags & OCPIF_SWSUP_IDLE) {
-			/* XXX omap_iclk_deny_idle(c); */
+			/*
+			 * we might have multiple users of one iclk with
+			 * different requirements, disable autoidle when
+			 * the module is enabled, e.g. dss iclk
+			 */
 		} else {
-			/* XXX omap_iclk_allow_idle(c); */
+			/* we are enabling autoidle afterwards anyways */
 			clk_enable(os->_clk);
 		}
 	}

drivers/acpi/acpi_lpss.c

@@ -18,7 +18,7 @@
 #include <linux/mutex.h>
 #include <linux/pci.h>
 #include <linux/platform_device.h>
-#include <linux/platform_data/clk-lpss.h>
+#include <linux/platform_data/x86/clk-lpss.h>
 #include <linux/platform_data/x86/pmc_atom.h>
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>

drivers/clk/Kconfig

@@ -290,6 +290,12 @@ config COMMON_CLK_BD718XX
 	  This driver supports ROHM BD71837 and ROHM BD71847
 	  PMICs clock gates.
 
+config COMMON_CLK_FIXED_MMIO
+	bool "Clock driver for Memory Mapped Fixed values"
+	depends on COMMON_CLK && OF
+	help
+	  Support for Memory Mapped IO Fixed clocks
+
 source "drivers/clk/actions/Kconfig"
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"

drivers/clk/Makefile

@@ -27,6 +27,7 @@ obj-$(CONFIG_COMMON_CLK_CDCE925)	+= clk-cdce925.o
 obj-$(CONFIG_ARCH_CLPS711X)		+= clk-clps711x.o
 obj-$(CONFIG_COMMON_CLK_CS2000_CP)	+= clk-cs2000-cp.o
 obj-$(CONFIG_ARCH_EFM32)		+= clk-efm32gg.o
+obj-$(CONFIG_COMMON_CLK_FIXED_MMIO)	+= clk-fixed-mmio.o
 obj-$(CONFIG_COMMON_CLK_GEMINI)		+= clk-gemini.o
 obj-$(CONFIG_COMMON_CLK_ASPEED)		+= clk-aspeed.o
 obj-$(CONFIG_ARCH_HIGHBANK)		+= clk-highbank.o
@@ -78,7 +79,7 @@ obj-$(CONFIG_ARCH_K3)			+= keystone/
 obj-$(CONFIG_ARCH_KEYSTONE)		+= keystone/
 obj-$(CONFIG_MACH_LOONGSON32)		+= loongson1/
 obj-y					+= mediatek/
-obj-$(CONFIG_COMMON_CLK_AMLOGIC)	+= meson/
+obj-$(CONFIG_ARCH_MESON)		+= meson/
 obj-$(CONFIG_MACH_PIC32)		+= microchip/
 ifeq ($(CONFIG_COMMON_CLK), y)
 obj-$(CONFIG_ARCH_MMP)			+= mmp/