Merge tag 'sunxi-clk-for-4.13' of...

Merge tag 'sunxi-clk-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull Allwinner clock patches from Maxime Ripard:

Some new clock units are supported, for the display clocks unsed in the
newer SoCs, and the A83T PRCM.

There is also a bunch of minor fixes for clocks that are not used by
anyone, and reworks needed by drivers that will land in 4.13.

* tag 'sunxi-clk-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (21 commits)
  clk: sunxi-ng: Move all clock types to a library
  clk: sunxi-ng: a83t: Add support for A83T's PRCM
  dt-bindings: clock: sunxi-ccu: Add compatible string for A83T PRCM
  clk: sunxi-ng: select SUNXI_CCU_MULT for sun8i-a83t
  clk: sunxi-ng: a83t: Fix audio PLL divider offset
  clk: sunxi-ng: a83t: Fix PLL lock status register offset
  clk: sunxi-ng: Add driver for A83T CCU
  clk: sunxi-ng: Support multiple variable pre-dividers
  dt-bindings: clock: sunxi-ccu: Add compatible string for A83T CCU
  clk: sunxi-ng: de2: fix wrong pointer passed to PTR_ERR()
  clk: sunxi-ng: sun5i: Export video PLLs
  clk: sunxi-ng: mux: Re-adjust parent rate
  clk: sunxi-ng: mux: Change pre-divider application function prototype
  clk: sunxi-ng: mux: split out the pre-divider computation code
  clk: sunxi-ng: mux: Don't just rely on the parent for CLK_SET_RATE_PARENT
  clk: sunxi-ng: div: Switch to divider_round_rate
  clk: sunxi-ng: Pass the parent and a pointer to the clocks round rate
  clk: divider: Make divider_round_rate take the parent clock
  clk: sunxi-ng: explicitly include linux/spinlock.h
  clk: sunxi-ng: add support for DE2 CCU
  ...

Documentation/devicetree/bindings/clock/sun8i-de2.txt

+Allwinner Display Engine 2.0 Clock Control Binding
+--------------------------------------------------
+
+Required properties :
+- compatible: must contain one of the following compatibles:
+		- "allwinner,sun8i-a83t-de2-clk"
+		- "allwinner,sun8i-v3s-de2-clk"
+		- "allwinner,sun50i-h5-de2-clk"
+
+- reg: Must contain the registers base address and length
+- clocks: phandle to the clocks feeding the display engine subsystem.
+	  Three are needed:
+  - "mod": the display engine module clock
+  - "bus": the bus clock for the whole display engine subsystem
+- clock-names: Must contain the clock names described just above
+- resets: phandle to the reset control for the display engine subsystem.
+- #clock-cells : must contain 1
+- #reset-cells : must contain 1
+
+Example:
+de2_clocks: clock@1000000 {
+	compatible = "allwinner,sun8i-a83t-de2-clk";
+	reg = <0x01000000 0x100000>;
+	clocks = <&ccu CLK_BUS_DE>,
+		 <&ccu CLK_DE>;
+	clock-names = "bus",
+		      "mod";
+	resets = <&ccu RST_BUS_DE>;
+	#clock-cells = <1>;
+	#reset-cells = <1>;
+};

Documentation/devicetree/bindings/clock/sunxi-ccu.txt

@@ -6,6 +6,8 @@ Required properties :
 		- "allwinner,sun6i-a31-ccu"
 		- "allwinner,sun8i-a23-ccu"
 		- "allwinner,sun8i-a33-ccu"
+		- "allwinner,sun8i-a83t-ccu"
+		- "allwinner,sun8i-a83t-r-ccu"
 		- "allwinner,sun8i-h3-ccu"
 		- "allwinner,sun8i-h3-r-ccu"
 		- "allwinner,sun8i-v3s-ccu"
@@ -18,11 +20,12 @@ Required properties :
 - clocks: phandle to the oscillators feeding the CCU. Two are needed:
   - "hosc": the high frequency oscillator (usually at 24MHz)
   - "losc": the low frequency oscillator (usually at 32kHz)
+	    On the A83T, this is the internal 16MHz oscillator divided by 512
 - clock-names: Must contain the clock names described just above
 - #clock-cells : must contain 1
 - #reset-cells : must contain 1
 
-For the PRCM CCUs on H3/A64, two more clocks are needed:
+For the PRCM CCUs on A83T/H3/A64, two more clocks are needed:
 - "pll-periph": the SoC's peripheral PLL from the main CCU
 - "iosc": the SoC's internal frequency oscillator
 

drivers/clk/clk-divider.c

@@ -275,7 +275,8 @@ static int _next_div(const struct clk_div_table *table, int div,
 	return div;
 }
 
-static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
+static int clk_divider_bestdiv(struct clk_hw *hw, struct clk_hw *parent,
+			       unsigned long rate,
 			       unsigned long *best_parent_rate,
 			       const struct clk_div_table *table, u8 width,
 			       unsigned long flags)
@@ -314,8 +315,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
 			*best_parent_rate = parent_rate_saved;
 			return i;
 		}
-		parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw),
-					       rate * i);
+		parent_rate = clk_hw_round_rate(parent, rate * i);
 		now = DIV_ROUND_UP_ULL((u64)parent_rate, i);
 		if (_is_best_div(rate, now, best, flags)) {
 			bestdiv = i;
@@ -326,23 +326,24 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
 
 	if (!bestdiv) {
 		bestdiv = _get_maxdiv(table, width, flags);
-		*best_parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), 1);
+		*best_parent_rate = clk_hw_round_rate(parent, 1);
 	}
 
 	return bestdiv;
 }
 
-long divider_round_rate(struct clk_hw *hw, unsigned long rate,
-			unsigned long *prate, const struct clk_div_table *table,
-			u8 width, unsigned long flags)
+long divider_round_rate_parent(struct clk_hw *hw, struct clk_hw *parent,
+			       unsigned long rate, unsigned long *prate,
+			       const struct clk_div_table *table,
+			       u8 width, unsigned long flags)
 {
 	int div;
 
-	div = clk_divider_bestdiv(hw, rate, prate, table, width, flags);
+	div = clk_divider_bestdiv(hw, parent, rate, prate, table, width, flags);
 
 	return DIV_ROUND_UP_ULL((u64)*prate, div);
 }
-EXPORT_SYMBOL_GPL(divider_round_rate);
+EXPORT_SYMBOL_GPL(divider_round_rate_parent);
 
 static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate,
 				unsigned long *prate)

drivers/clk/sunxi-ng/Kconfig

@@ -6,157 +6,55 @@ config SUNXI_CCU
 
 if SUNXI_CCU
 
-# Base clock types
-
-config SUNXI_CCU_DIV
-	bool
-	select SUNXI_CCU_MUX
-
-config SUNXI_CCU_FRAC
-	bool
-
-config SUNXI_CCU_GATE
-	def_bool y
-
-config SUNXI_CCU_MUX
-	bool
-
-config SUNXI_CCU_MULT
-	bool
-	select SUNXI_CCU_MUX
-
-config SUNXI_CCU_PHASE
-	bool
-
-# Multi-factor clocks
-
-config SUNXI_CCU_NK
-	bool
-	select SUNXI_CCU_GATE
-
-config SUNXI_CCU_NKM
-	bool
-	select SUNXI_CCU_GATE
-
-config SUNXI_CCU_NKMP
-	bool
-	select SUNXI_CCU_GATE
-
-config SUNXI_CCU_NM
-	bool
-	select SUNXI_CCU_FRAC
-	select SUNXI_CCU_GATE
-
-config SUNXI_CCU_MP
-	bool
-	select SUNXI_CCU_GATE
-	select SUNXI_CCU_MUX
-
-# SoC Drivers
-
 config SUN50I_A64_CCU
 	bool "Support for the Allwinner A64 CCU"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_NK
-	select SUNXI_CCU_NKM
-	select SUNXI_CCU_NKMP
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default ARM64 && ARCH_SUNXI
 	depends on (ARM64 && ARCH_SUNXI) || COMPILE_TEST
 
 config SUN5I_CCU
 	bool "Support for the Allwinner sun5i family CCM"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_MULT
-	select SUNXI_CCU_NK
-	select SUNXI_CCU_NKM
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default MACH_SUN5I
 	depends on MACH_SUN5I || COMPILE_TEST
 
 config SUN6I_A31_CCU
 	bool "Support for the Allwinner A31/A31s CCU"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_NK
-	select SUNXI_CCU_NKM
-	select SUNXI_CCU_NKMP
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default MACH_SUN6I
 	depends on MACH_SUN6I || COMPILE_TEST
 
 config SUN8I_A23_CCU
 	bool "Support for the Allwinner A23 CCU"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_MULT
-	select SUNXI_CCU_NK
-	select SUNXI_CCU_NKM
-	select SUNXI_CCU_NKMP
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default MACH_SUN8I
 	depends on MACH_SUN8I || COMPILE_TEST
 
 config SUN8I_A33_CCU
 	bool "Support for the Allwinner A33 CCU"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_MULT
-	select SUNXI_CCU_NK
-	select SUNXI_CCU_NKM
-	select SUNXI_CCU_NKMP
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default MACH_SUN8I
 	depends on MACH_SUN8I || COMPILE_TEST
 
+config SUN8I_A83T_CCU
+	bool "Support for the Allwinner A83T CCU"
+	default MACH_SUN8I
+
 config SUN8I_H3_CCU
 	bool "Support for the Allwinner H3 CCU"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_NK
-	select SUNXI_CCU_NKM
-	select SUNXI_CCU_NKMP
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default MACH_SUN8I || (ARM64 && ARCH_SUNXI)
 	depends on MACH_SUN8I || (ARM64 && ARCH_SUNXI) || COMPILE_TEST
 
 config SUN8I_V3S_CCU
 	bool "Support for the Allwinner V3s CCU"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_NK
-	select SUNXI_CCU_NKM
-	select SUNXI_CCU_NKMP
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default MACH_SUN8I
 	depends on MACH_SUN8I || COMPILE_TEST
 
+config SUN8I_DE2_CCU
+	bool "Support for the Allwinner SoCs DE2 CCU"
+
 config SUN9I_A80_CCU
 	bool "Support for the Allwinner A80 CCU"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_MULT
-	select SUNXI_CCU_GATE
-	select SUNXI_CCU_NKMP
-	select SUNXI_CCU_NM
-	select SUNXI_CCU_MP
-	select SUNXI_CCU_PHASE
 	default MACH_SUN9I
 	depends on MACH_SUN9I || COMPILE_TEST
 
 config SUN8I_R_CCU
 	bool "Support for Allwinner SoCs' PRCM CCUs"
-	select SUNXI_CCU_DIV
-	select SUNXI_CCU_GATE
-	select SUNXI_CCU_MP
 	default MACH_SUN8I || (ARCH_SUNXI && ARM64)
 
 endif

drivers/clk/sunxi-ng/Makefile

 # Common objects
-obj-$(CONFIG_SUNXI_CCU)		+= ccu_common.o
-obj-$(CONFIG_SUNXI_CCU)		+= ccu_reset.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_common.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_reset.o
 
 # Base clock types
-obj-$(CONFIG_SUNXI_CCU_DIV)	+= ccu_div.o
-obj-$(CONFIG_SUNXI_CCU_FRAC)	+= ccu_frac.o
-obj-$(CONFIG_SUNXI_CCU_GATE)	+= ccu_gate.o
-obj-$(CONFIG_SUNXI_CCU_MUX)	+= ccu_mux.o
-obj-$(CONFIG_SUNXI_CCU_MULT)	+= ccu_mult.o
-obj-$(CONFIG_SUNXI_CCU_PHASE)	+= ccu_phase.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_div.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_frac.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_gate.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_mux.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_mult.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_phase.o
 
 # Multi-factor clocks
-obj-$(CONFIG_SUNXI_CCU_NK)	+= ccu_nk.o
-obj-$(CONFIG_SUNXI_CCU_NKM)	+= ccu_nkm.o
-obj-$(CONFIG_SUNXI_CCU_NKMP)	+= ccu_nkmp.o
-obj-$(CONFIG_SUNXI_CCU_NM)	+= ccu_nm.o
-obj-$(CONFIG_SUNXI_CCU_MP)	+= ccu_mp.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_nk.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_nkm.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_nkmp.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_nm.o
+lib-$(CONFIG_SUNXI_CCU)		+= ccu_mp.o
 
 # SoC support
 obj-$(CONFIG_SUN50I_A64_CCU)	+= ccu-sun50i-a64.o
@@ -23,9 +23,20 @@ obj-$(CONFIG_SUN5I_CCU)		+= ccu-sun5i.o
 obj-$(CONFIG_SUN6I_A31_CCU)	+= ccu-sun6i-a31.o
 obj-$(CONFIG_SUN8I_A23_CCU)	+= ccu-sun8i-a23.o
 obj-$(CONFIG_SUN8I_A33_CCU)	+= ccu-sun8i-a33.o
+obj-$(CONFIG_SUN8I_A83T_CCU)	+= ccu-sun8i-a83t.o
 obj-$(CONFIG_SUN8I_H3_CCU)	+= ccu-sun8i-h3.o
 obj-$(CONFIG_SUN8I_V3S_CCU)	+= ccu-sun8i-v3s.o
+obj-$(CONFIG_SUN8I_DE2_CCU)	+= ccu-sun8i-de2.o
 obj-$(CONFIG_SUN8I_R_CCU)	+= ccu-sun8i-r.o
 obj-$(CONFIG_SUN9I_A80_CCU)	+= ccu-sun9i-a80.o
 obj-$(CONFIG_SUN9I_A80_CCU)	+= ccu-sun9i-a80-de.o
 obj-$(CONFIG_SUN9I_A80_CCU)	+= ccu-sun9i-a80-usb.o
+
+# The lib-y file goals is supposed to work only in arch/*/lib or lib/. In our
+# case, we want to use that goal, but even though lib.a will be properly
+# generated, it will not be linked in, eventually resulting in a linker error
+# for missing symbols.
+#
+# We can work around that by explicitly adding lib.a to the obj-y goal. This is
+# an undocumented behaviour, but works well for now.
+obj-$(CONFIG_SUNXI_CCU)		+= lib.a

drivers/clk/sunxi-ng/ccu-sun50i-a64.c

@@ -211,6 +211,9 @@ static SUNXI_CCU_M(axi_clk, "axi", "cpux", 0x050, 0, 2, 0);
 
 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 					     "axi", "pll-periph0" };
+static const struct ccu_mux_var_prediv ahb1_predivs[] = {
+	{ .index = 3, .shift = 6, .width = 2 },
+};
 static struct ccu_div ahb1_clk = {
 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
 
@@ -218,11 +221,8 @@ static struct ccu_div ahb1_clk = {
 		.shift	= 12,
 		.width	= 2,
 
-		.variable_prediv	= {
-			.index	= 3,
-			.shift	= 6,
-			.width	= 2,
-		},
+		.var_predivs	= ahb1_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ahb1_predivs),
 	},
 
 	.common		= {

drivers/clk/sunxi-ng/ccu-sun5i.h

@@ -28,15 +28,17 @@
 #define CLK_PLL_AUDIO_4X	6
 #define CLK_PLL_AUDIO_8X	7
 #define CLK_PLL_VIDEO0		8
-#define CLK_PLL_VIDEO0_2X	9
+
+/* The PLL_VIDEO0_2X is exported for HDMI */
+
 #define CLK_PLL_VE		10
 #define CLK_PLL_DDR_BASE	11
 #define CLK_PLL_DDR		12
 #define CLK_PLL_DDR_OTHER	13
 #define CLK_PLL_PERIPH		14
 #define CLK_PLL_VIDEO1		15
-#define CLK_PLL_VIDEO1_2X	16
 
+/* The PLL_VIDEO1_2X is exported for HDMI */
 /* The CPU clock is exported */
 
 #define CLK_AXI			18

drivers/clk/sunxi-ng/ccu-sun6i-a31.c

@@ -195,6 +195,9 @@ static SUNXI_CCU_DIV_TABLE(axi_clk, "axi", "cpu",
 
 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 					     "axi", "pll-periph" };
+static const struct ccu_mux_var_prediv ahb1_predivs[] = {
+	{ .index = 3, .shift = 6, .width = 2 },
+};
 
 static struct ccu_div ahb1_clk = {
 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
@@ -203,11 +206,8 @@ static struct ccu_div ahb1_clk = {
 		.shift	= 12,
 		.width	= 2,
 
-		.variable_prediv	= {
-			.index	= 3,
-			.shift	= 6,
-			.width	= 2,
-		},
+		.var_predivs	= ahb1_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ahb1_predivs),
 	},
 
 	.common		= {

drivers/clk/sunxi-ng/ccu-sun8i-a23.c

@@ -169,6 +169,9 @@ static SUNXI_CCU_M(axi_clk, "axi", "cpux", 0x050, 0, 2, 0);
 
 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 					     "axi" , "pll-periph" };
+static const struct ccu_mux_var_prediv ahb1_predivs[] = {
+	{ .index = 3, .shift = 6, .width = 2 },
+};
 static struct ccu_div ahb1_clk = {
 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
 
@@ -176,11 +179,8 @@ static struct ccu_div ahb1_clk = {
 		.shift	= 12,
 		.width	= 2,
 
-		.variable_prediv	= {
-			.index	= 3,
-			.shift	= 6,
-			.width	= 2,
-		},
+		.var_predivs	= ahb1_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ahb1_predivs),
 	},
 
 	.common		= {

drivers/clk/sunxi-ng/ccu-sun8i-a33.c

@@ -180,6 +180,9 @@ static SUNXI_CCU_M(axi_clk, "axi", "cpux", 0x050, 0, 2, 0);
 
 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 					     "axi" , "pll-periph" };
+static const struct ccu_mux_var_prediv ahb1_predivs[] = {
+	{ .index = 3, .shift = 6, .width = 2 },
+};
 static struct ccu_div ahb1_clk = {
 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
 
@@ -187,11 +190,8 @@ static struct ccu_div ahb1_clk = {
 		.shift	= 12,
 		.width	= 2,
 
-		.variable_prediv	= {
-			.index	= 3,
-			.shift	= 6,
-			.width	= 2,
-		},
+		.var_predivs	= ahb1_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ahb1_predivs),
 	},
 
 	.common		= {

drivers/clk/sunxi-ng/ccu-sun8i-a83t.h

+/*
+ * Copyright 2016 Chen-Yu Tsai
+ *
+ * Chen-Yu Tsai <wens@csie.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _CCU_SUN8I_A83T_H_
+#define _CCU_SUN8I_A83T_H_
+
+#include <dt-bindings/clock/sun8i-a83t-ccu.h>
+#include <dt-bindings/reset/sun8i-a83t-ccu.h>
+
+#define CLK_PLL_C0CPUX		0
+#define CLK_PLL_C1CPUX		1
+#define CLK_PLL_AUDIO		2
+#define CLK_PLL_VIDEO0		3
+#define CLK_PLL_VE		4
+#define CLK_PLL_DDR		5
+
+/* pll-periph is exported to the PRCM block */
+
+#define CLK_PLL_GPU		7
+#define CLK_PLL_HSIC		8
+
+/* pll-de is exported for the display engine */
+
+#define CLK_PLL_VIDEO1		10
+
+/* The CPUX clocks are exported */
+
+#define CLK_AXI0		13
+#define CLK_AXI1		14
+#define CLK_AHB1		15
+#define CLK_AHB2		16
+#define CLK_APB1		17
+#define CLK_APB2		18
+
+/* bus gates exported */
+
+#define CLK_CCI400		58
+
+/* module and usb clocks exported */
+
+#define CLK_DRAM		82
+
+/* dram gates and more module clocks exported */
+
+#define CLK_MBUS		95
+
+/* more module clocks exported */
+
+#define CLK_NUMBER		(CLK_GPU_HYD + 1)
+
+#endif /* _CCU_SUN8I_A83T_H_ */

drivers/clk/sunxi-ng/ccu-sun8i-de2.c

+/*
+ * Copyright (c) 2017 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include "ccu_common.h"
+#include "ccu_div.h"
+#include "ccu_gate.h"
+#include "ccu_reset.h"
+
+#include "ccu-sun8i-de2.h"
+
+static SUNXI_CCU_GATE(bus_mixer0_clk,	"bus-mixer0",	"bus-de",
+		      0x04, BIT(0), 0);
+static SUNXI_CCU_GATE(bus_mixer1_clk,	"bus-mixer1",	"bus-de",
+		      0x04, BIT(1), 0);
+static SUNXI_CCU_GATE(bus_wb_clk,	"bus-wb",	"bus-de",
+		      0x04, BIT(2), 0);
+
+static SUNXI_CCU_GATE(mixer0_clk,	"mixer0",	"mixer0-div",
+		      0x00, BIT(0), CLK_SET_RATE_PARENT);
+static SUNXI_CCU_GATE(mixer1_clk,	"mixer1",	"mixer1-div",
+		      0x00, BIT(1), CLK_SET_RATE_PARENT);
+static SUNXI_CCU_GATE(wb_clk,		"wb",		"wb-div",
+		      0x00, BIT(2), CLK_SET_RATE_PARENT);
+
+static SUNXI_CCU_M(mixer0_div_clk, "mixer0-div", "de", 0x0c, 0, 4,
+		   CLK_SET_RATE_PARENT);
+static SUNXI_CCU_M(mixer1_div_clk, "mixer1-div", "de", 0x0c, 4, 4,
+		   CLK_SET_RATE_PARENT);
+static SUNXI_CCU_M(wb_div_clk, "wb-div", "de", 0x0c, 8, 4,
+		   CLK_SET_RATE_PARENT);
+
+static struct ccu_common *sun8i_a83t_de2_clks[] = {
+	&mixer0_clk.common,
+	&mixer1_clk.common,
+	&wb_clk.common,
+
+	&bus_mixer0_clk.common,
+	&bus_mixer1_clk.common,
+	&bus_wb_clk.common,
+
+	&mixer0_div_clk.common,
+	&mixer1_div_clk.common,
+	&wb_div_clk.common,
+};
+
+static struct ccu_common *sun8i_v3s_de2_clks[] = {
+	&mixer0_clk.common,
+	&wb_clk.common,
+
+	&bus_mixer0_clk.common,
+	&bus_wb_clk.common,
+
+	&mixer0_div_clk.common,
+	&wb_div_clk.common,
+};
+
+static struct clk_hw_onecell_data sun8i_a83t_de2_hw_clks = {
+	.hws	= {
+		[CLK_MIXER0]		= &mixer0_clk.common.hw,
+		[CLK_MIXER1]		= &mixer1_clk.common.hw,
+		[CLK_WB]		= &wb_clk.common.hw,
+
+		[CLK_BUS_MIXER0]	= &bus_mixer0_clk.common.hw,
+		[CLK_BUS_MIXER1]	= &bus_mixer1_clk.common.hw,
+		[CLK_BUS_WB]		= &bus_wb_clk.common.hw,
+
+		[CLK_MIXER0_DIV]	= &mixer0_div_clk.common.hw,
+		[CLK_MIXER1_DIV]	= &mixer1_div_clk.common.hw,
+		[CLK_WB_DIV]		= &wb_div_clk.common.hw,
+	},
+	.num	= CLK_NUMBER,
+};
+
+static struct clk_hw_onecell_data sun8i_v3s_de2_hw_clks = {
+	.hws	= {
+		[CLK_MIXER0]		= &mixer0_clk.common.hw,
+		[CLK_WB]		= &wb_clk.common.hw,
+
+		[CLK_BUS_MIXER0]	= &bus_mixer0_clk.common.hw,
+		[CLK_BUS_WB]		= &bus_wb_clk.common.hw,
+
+		[CLK_MIXER0_DIV]	= &mixer0_div_clk.common.hw,
+		[CLK_WB_DIV]		= &wb_div_clk.common.hw,
+	},
+	.num	= CLK_NUMBER,
+};
+
+static struct ccu_reset_map sun8i_a83t_de2_resets[] = {
+	[RST_MIXER0]	= { 0x08, BIT(0) },
+	/*
+	 * For A83T, H3 and R40, mixer1 reset line is shared with wb, so
+	 * only RST_WB is exported here.
+	 * For V3s there's just no mixer1, so it also shares this struct.
+	 */
+	[RST_WB]	= { 0x08, BIT(2) },
+};
+
+static struct ccu_reset_map sun50i_a64_de2_resets[] = {
+	[RST_MIXER0]	= { 0x08, BIT(0) },
+	[RST_MIXER1]	= { 0x08, BIT(1) },
+	[RST_WB]	= { 0x08, BIT(2) },
+};
+
+static const struct sunxi_ccu_desc sun8i_a83t_de2_clk_desc = {
+	.ccu_clks	= sun8i_a83t_de2_clks,
+	.num_ccu_clks	= ARRAY_SIZE(sun8i_a83t_de2_clks),
+
+	.hw_clks	= &sun8i_a83t_de2_hw_clks,
+
+	.resets		= sun8i_a83t_de2_resets,
+	.num_resets	= ARRAY_SIZE(sun8i_a83t_de2_resets),
+};
+
+static const struct sunxi_ccu_desc sun50i_a64_de2_clk_desc = {
+	.ccu_clks	= sun8i_a83t_de2_clks,
+	.num_ccu_clks	= ARRAY_SIZE(sun8i_a83t_de2_clks),
+
+	.hw_clks	= &sun8i_a83t_de2_hw_clks,
+
+	.resets		= sun50i_a64_de2_resets,
+	.num_resets	= ARRAY_SIZE(sun50i_a64_de2_resets),
+};
+
+static const struct sunxi_ccu_desc sun8i_v3s_de2_clk_desc = {
+	.ccu_clks	= sun8i_v3s_de2_clks,
+	.num_ccu_clks	= ARRAY_SIZE(sun8i_v3s_de2_clks),
+
+	.hw_clks	= &sun8i_v3s_de2_hw_clks,
+
+	.resets		= sun8i_a83t_de2_resets,
+	.num_resets	= ARRAY_SIZE(sun8i_a83t_de2_resets),
+};
+
+static int sunxi_de2_clk_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct clk *bus_clk, *mod_clk;
+	struct reset_control *rstc;
+	void __iomem *reg;
+	const struct sunxi_ccu_desc *ccu_desc;
+	int ret;
+
+	ccu_desc = of_device_get_match_data(&pdev->dev);
+	if (!ccu_desc)
+		return -EINVAL;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	reg = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
+
+	bus_clk = devm_clk_get(&pdev->dev, "bus");
+	if (IS_ERR(bus_clk)) {
+		ret = PTR_ERR(bus_clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
+		return ret;
+	}
+
+	mod_clk = devm_clk_get(&pdev->dev, "mod");
+	if (IS_ERR(mod_clk)) {
+		ret = PTR_ERR(mod_clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Couldn't get mod clk: %d\n", ret);
+		return ret;
+	}
+
+	rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
+	if (IS_ERR(rstc)) {
+		ret = PTR_ERR(rstc);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev,
+				"Couldn't get reset control: %d\n", ret);
+		return ret;
+	}
+
+	/* The clocks need to be enabled for us to access the registers */
+	ret = clk_prepare_enable(bus_clk);
+	if (ret) {
+		dev_err(&pdev->dev, "Couldn't enable bus clk: %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(mod_clk);
+	if (ret) {
+		dev_err(&pdev->dev, "Couldn't enable mod clk: %d\n", ret);
+		goto err_disable_bus_clk;
+	}
+
+	/* The reset control needs to be asserted for the controls to work */
+	ret = reset_control_deassert(rstc);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Couldn't deassert reset control: %d\n", ret);
+		goto err_disable_mod_clk;
+	}
+
+	ret = sunxi_ccu_probe(pdev->dev.of_node, reg, ccu_desc);
+	if (ret)
+		goto err_assert_reset;
+
+	return 0;
+
+err_assert_reset:
+	reset_control_assert(rstc);
+err_disable_mod_clk:
+	clk_disable_unprepare(mod_clk);
+err_disable_bus_clk:
+	clk_disable_unprepare(bus_clk);
+	return ret;
+}
+
+static const struct of_device_id sunxi_de2_clk_ids[] = {
+	{
+		.compatible = "allwinner,sun8i-a83t-de2-clk",
+		.data = &sun8i_a83t_de2_clk_desc,
+	},
+	{
+		.compatible = "allwinner,sun8i-v3s-de2-clk",
+		.data = &sun8i_v3s_de2_clk_desc,
+	},
+	{
+		.compatible = "allwinner,sun50i-h5-de2-clk",
+		.data = &sun50i_a64_de2_clk_desc,
+	},
+	/*
+	 * The Allwinner A64 SoC needs some bit to be poke in syscon to make
+	 * DE2 really working.
+	 * So there's currently no A64 compatible here.
+	 * H5 shares the same reset line with A64, so here H5 is using the
+	 * clock description of A64.
+	 */
+	{ }
+};
+
+static struct platform_driver sunxi_de2_clk_driver = {
+	.probe	= sunxi_de2_clk_probe,
+	.driver	= {
+		.name	= "sunxi-de2-clks",
+		.of_match_table	= sunxi_de2_clk_ids,
+	},
+};
+builtin_platform_driver(sunxi_de2_clk_driver);

drivers/clk/sunxi-ng/ccu-sun8i-de2.h

+/*
+ * Copyright 2016 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _CCU_SUN8I_DE2_H_
+#define _CCU_SUN8I_DE2_H_
+
+#include <dt-bindings/clock/sun8i-de2.h>
+#include <dt-bindings/reset/sun8i-de2.h>
+
+/* Intermediary clock dividers are not exported */
+#define CLK_MIXER0_DIV	3
+#define CLK_MIXER1_DIV	4
+#define CLK_WB_DIV	5
+
+#define CLK_NUMBER	(CLK_WB + 1)
+
+#endif /* _CCU_SUN8I_DE2_H_ */

drivers/clk/sunxi-ng/ccu-sun8i-h3.c

@@ -141,6 +141,9 @@ static SUNXI_CCU_M(axi_clk, "axi", "cpux", 0x050, 0, 2, 0);
 
 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 					     "axi" , "pll-periph0" };
+static const struct ccu_mux_var_prediv ahb1_predivs[] = {
+	{ .index = 3, .shift = 6, .width = 2 },
+};
 static struct ccu_div ahb1_clk = {
 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
 
@@ -148,11 +151,8 @@ static struct ccu_div ahb1_clk = {
 		.shift	= 12,
 		.width	= 2,
 
-		.variable_prediv	= {
-			.index	= 3,
-			.shift	= 6,
-			.width	= 2,
-		},
+		.var_predivs	= ahb1_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ahb1_predivs),
 	},
 
 	.common		= {

drivers/clk/sunxi-ng/ccu-sun8i-r.c

@@ -27,6 +27,11 @@
 
 static const char * const ar100_parents[] = { "osc32k", "osc24M",
 					     "pll-periph0", "iosc" };
+static const char * const a83t_ar100_parents[] = { "osc16M-d512", "osc24M",
+						   "pll-periph0", "iosc" };
+static const struct ccu_mux_var_prediv ar100_predivs[] = {
+	{ .index = 2, .shift = 8, .width = 5 },
+};
 
 static struct ccu_div ar100_clk = {
 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
@@ -35,11 +40,8 @@ static struct ccu_div ar100_clk = {
 		.shift	= 16,
 		.width	= 2,
 
-		.variable_prediv	= {
-			.index	= 2,
-			.shift	= 8,
-			.width	= 5,
-		},
+		.var_predivs	= ar100_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ar100_predivs),
 	},
 
 	.common		= {
@@ -52,6 +54,27 @@ static struct ccu_div ar100_clk = {
 	},
 };
 
+static struct ccu_div a83t_ar100_clk = {
+	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
+
+	.mux		= {
+		.shift	= 16,
+		.width	= 2,
+
+		.var_predivs	= ar100_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ar100_predivs),
+	},
+
+	.common		= {
+		.reg		= 0x00,
+		.features	= CCU_FEATURE_VARIABLE_PREDIV,
+		.hw.init	= CLK_HW_INIT_PARENTS("ar100",
+						      a83t_ar100_parents,
+						      &ccu_div_ops,
+						      0),
+	},
+};
+
 static CLK_FIXED_FACTOR(ahb0_clk, "ahb0", "ar100", 1, 1, 0);
 
 static struct ccu_div apb0_clk = {
@@ -66,6 +89,8 @@ static struct ccu_div apb0_clk = {
 	},
 };
 
+static SUNXI_CCU_M(a83t_apb0_clk, "apb0", "ahb0", 0x0c, 0, 2, 0);
+
 static SUNXI_CCU_GATE(apb0_pio_clk,	"apb0-pio",	"apb0",
 		      0x28, BIT(0), 0);
 static SUNXI_CCU_GATE(apb0_ir_clk,	"apb0-ir",	"apb0",
@@ -90,6 +115,46 @@ static SUNXI_CCU_MP_WITH_MUX_GATE(ir_clk, "ir",
 				  BIT(31),	/* gate */
 				  0);
 
+static const char *const a83t_r_mod0_parents[] = { "osc16M", "osc24M" };
+static const struct ccu_mux_fixed_prediv a83t_ir_predivs[] = {
+	{ .index = 0, .div = 16 },
+};
+static struct ccu_mp a83t_ir_clk = {
+	.enable	= BIT(31),
+
+	.m	= _SUNXI_CCU_DIV(0, 4),
+	.p	= _SUNXI_CCU_DIV(16, 2),
+
+	.mux	= {
+		.shift	= 24,
+		.width	= 2,
+		.fixed_predivs	= a83t_ir_predivs,
+		.n_predivs	= ARRAY_SIZE(a83t_ir_predivs),
+	},
+
+	.common		= {
+		.reg		= 0x54,
+		.features	= CCU_FEATURE_VARIABLE_PREDIV,
+		.hw.init	= CLK_HW_INIT_PARENTS("ir",
+						      a83t_r_mod0_parents,
+						      &ccu_mp_ops,
+						      0),
+	},
+};
+
+static struct ccu_common *sun8i_a83t_r_ccu_clks[] = {
+	&a83t_ar100_clk.common,
+	&a83t_apb0_clk.common,
+	&apb0_pio_clk.common,
+	&apb0_ir_clk.common,
+	&apb0_timer_clk.common,
+	&apb0_rsb_clk.common,
+	&apb0_uart_clk.common,
+	&apb0_i2c_clk.common,
+	&apb0_twd_clk.common,
+	&a83t_ir_clk.common,
+};
+
 static struct ccu_common *sun8i_h3_r_ccu_clks[] = {
 	&ar100_clk.common,
 	&apb0_clk.common,
@@ -115,6 +180,23 @@ static struct ccu_common *sun50i_a64_r_ccu_clks[] = {
 	&ir_clk.common,
 };
 
+static struct clk_hw_onecell_data sun8i_a83t_r_hw_clks = {
+	.hws	= {
+		[CLK_AR100]		= &a83t_ar100_clk.common.hw,
+		[CLK_AHB0]		= &ahb0_clk.hw,
+		[CLK_APB0]		= &a83t_apb0_clk.common.hw,
+		[CLK_APB0_PIO]		= &apb0_pio_clk.common.hw,
+		[CLK_APB0_IR]		= &apb0_ir_clk.common.hw,
+		[CLK_APB0_TIMER]	= &apb0_timer_clk.common.hw,
+		[CLK_APB0_RSB]		= &apb0_rsb_clk.common.hw,
+		[CLK_APB0_UART]		= &apb0_uart_clk.common.hw,
+		[CLK_APB0_I2C]		= &apb0_i2c_clk.common.hw,
+		[CLK_APB0_TWD]		= &apb0_twd_clk.common.hw,
+		[CLK_IR]		= &a83t_ir_clk.common.hw,
+	},
+	.num	= CLK_NUMBER,
+};
+
 static struct clk_hw_onecell_data sun8i_h3_r_hw_clks = {
 	.hws	= {
 		[CLK_AR100]		= &ar100_clk.common.hw,
@@ -148,6 +230,14 @@ static struct clk_hw_onecell_data sun50i_a64_r_hw_clks = {
 	.num	= CLK_NUMBER,
 };
 
+static struct ccu_reset_map sun8i_a83t_r_ccu_resets[] = {
+	[RST_APB0_IR]		=  { 0xb0, BIT(1) },
+	[RST_APB0_TIMER]	=  { 0xb0, BIT(2) },
+	[RST_APB0_RSB]		=  { 0xb0, BIT(3) },
+	[RST_APB0_UART]		=  { 0xb0, BIT(4) },
+	[RST_APB0_I2C]		=  { 0xb0, BIT(6) },
+};
+
 static struct ccu_reset_map sun8i_h3_r_ccu_resets[] = {
 	[RST_APB0_IR]		=  { 0xb0, BIT(1) },
 	[RST_APB0_TIMER]	=  { 0xb0, BIT(2) },
@@ -163,6 +253,16 @@ static struct ccu_reset_map sun50i_a64_r_ccu_resets[] = {
 	[RST_APB0_I2C]		=  { 0xb0, BIT(6) },
 };
 
+static const struct sunxi_ccu_desc sun8i_a83t_r_ccu_desc = {
+	.ccu_clks	= sun8i_a83t_r_ccu_clks,
+	.num_ccu_clks	= ARRAY_SIZE(sun8i_a83t_r_ccu_clks),
+
+	.hw_clks	= &sun8i_a83t_r_hw_clks,
+
+	.resets		= sun8i_a83t_r_ccu_resets,
+	.num_resets	= ARRAY_SIZE(sun8i_a83t_r_ccu_resets),
+};
+
 static const struct sunxi_ccu_desc sun8i_h3_r_ccu_desc = {
 	.ccu_clks	= sun8i_h3_r_ccu_clks,
 	.num_ccu_clks	= ARRAY_SIZE(sun8i_h3_r_ccu_clks),
@@ -198,6 +298,13 @@ static void __init sunxi_r_ccu_init(struct device_node *node,
 	sunxi_ccu_probe(node, reg, desc);
 }
 
+static void __init sun8i_a83t_r_ccu_setup(struct device_node *node)
+{
+	sunxi_r_ccu_init(node, &sun8i_a83t_r_ccu_desc);
+}
+CLK_OF_DECLARE(sun8i_a83t_r_ccu, "allwinner,sun8i-a83t-r-ccu",
+	       sun8i_a83t_r_ccu_setup);
+
 static void __init sun8i_h3_r_ccu_setup(struct device_node *node)
 {
 	sunxi_r_ccu_init(node, &sun8i_h3_r_ccu_desc);

drivers/clk/sunxi-ng/ccu-sun8i-v3s.c

@@ -132,6 +132,9 @@ static SUNXI_CCU_M(axi_clk, "axi", "cpu", 0x050, 0, 2, 0);
 
 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 					     "axi", "pll-periph0" };
+static const struct ccu_mux_var_prediv ahb1_predivs[] = {
+	{ .index = 3, .shift = 6, .width = 2 },
+};
 static struct ccu_div ahb1_clk = {
 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
 
@@ -139,11 +142,8 @@ static struct ccu_div ahb1_clk = {
 		.shift	= 12,
 		.width	= 2,
 
-		.variable_prediv	= {
-			.index	= 3,
-			.shift	= 6,
-			.width	= 2,
-		},
+		.var_predivs	= ahb1_predivs,
+		.n_var_predivs	= ARRAY_SIZE(ahb1_predivs),
 	},
 
 	.common		= {

drivers/clk/sunxi-ng/ccu_div.c

@@ -14,23 +14,17 @@
 #include "ccu_div.h"
 
 static unsigned long ccu_div_round_rate(struct ccu_mux_internal *mux,
-					unsigned long parent_rate,
+					struct clk_hw *parent,
+					unsigned long *parent_rate,
 					unsigned long rate,
 					void *data)
 {
 	struct ccu_div *cd = data;
-	unsigned long val;
-
-	/*
-	 * We can't use divider_round_rate that assumes that there's
-	 * several parents, while we might be called to evaluate
-	 * several different parents.
-	 */
-	val = divider_get_val(rate, parent_rate, cd->div.table, cd->div.width,
-			      cd->div.flags);
 
-	return divider_recalc_rate(&cd->common.hw, parent_rate, val,
-				   cd->div.table, cd->div.flags);
+	return divider_round_rate_parent(&cd->common.hw, parent,
+					 rate, parent_rate,
+					 cd->div.table, cd->div.width,
+					 cd->div.flags);
 }
 
 static void ccu_div_disable(struct clk_hw *hw)
@@ -65,8 +59,8 @@ static unsigned long ccu_div_recalc_rate(struct clk_hw *hw,
 	val = reg >> cd->div.shift;
 	val &= (1 << cd->div.width) - 1;
 
-	ccu_mux_helper_adjust_parent_for_prediv(&cd->common, &cd->mux, -1,
-						&parent_rate);
+	parent_rate = ccu_mux_helper_apply_prediv(&cd->common, &cd->mux, -1,
+						  parent_rate);
 
 	return divider_recalc_rate(hw, parent_rate, val, cd->div.table,
 				   cd->div.flags);
@@ -77,18 +71,6 @@ static int ccu_div_determine_rate(struct clk_hw *hw,
 {
 	struct ccu_div *cd = hw_to_ccu_div(hw);
 
-	if (clk_hw_get_num_parents(hw) == 1) {
-		req->rate = divider_round_rate(hw, req->rate,
-					       &req->best_parent_rate,
-					       cd->div.table,
-					       cd->div.width,
-					       cd->div.flags);
-
-		req->best_parent_hw = clk_hw_get_parent(hw);
-
-		return 0;
-	}
-
 	return ccu_mux_helper_determine_rate(&cd->common, &cd->mux,
 					     req, ccu_div_round_rate, cd);
 }
@@ -101,8 +83,8 @@ static int ccu_div_set_rate(struct clk_hw *hw, unsigned long rate,
 	unsigned long val;
 	u32 reg;
 
-	ccu_mux_helper_adjust_parent_for_prediv(&cd->common, &cd->mux, -1,
-						&parent_rate);
+	parent_rate = ccu_mux_helper_apply_prediv(&cd->common, &cd->mux, -1,
+						  parent_rate);
 
 	val = divider_get_val(rate, parent_rate, cd->div.table, cd->div.width,
 			      cd->div.flags);

drivers/clk/sunxi-ng/ccu_mp.c

@@ -41,7 +41,8 @@ static void ccu_mp_find_best(unsigned long parent, unsigned long rate,
 }
 
 static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux,
-				       unsigned long parent_rate,
+				       struct clk_hw *hw,
+				       unsigned long *parent_rate,
 				       unsigned long rate,
 				       void *data)
 {
@@ -52,9 +53,9 @@ static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux,
 	max_m = cmp->m.max ?: 1 << cmp->m.width;
 	max_p = cmp->p.max ?: 1 << ((1 << cmp->p.width) - 1);
 
-	ccu_mp_find_best(parent_rate, rate, max_m, max_p, &m, &p);
+	ccu_mp_find_best(*parent_rate, rate, max_m, max_p, &m, &p);
 
-	return parent_rate / p / m;
+	return *parent_rate / p / m;
 }
 
 static void ccu_mp_disable(struct clk_hw *hw)
@@ -86,8 +87,8 @@ static unsigned long ccu_mp_recalc_rate(struct clk_hw *hw,
 	u32 reg;
 
 	/* Adjust parent_rate according to pre-dividers */
-	ccu_mux_helper_adjust_parent_for_prediv(&cmp->common, &cmp->mux,
-						-1, &parent_rate);
+	parent_rate = ccu_mux_helper_apply_prediv(&cmp->common, &cmp->mux, -1,
+						  parent_rate);
 
 	reg = readl(cmp->common.base + cmp->common.reg);
 
@@ -122,8 +123,8 @@ static int ccu_mp_set_rate(struct clk_hw *hw, unsigned long rate,
 	u32 reg;
 
 	/* Adjust parent_rate according to pre-dividers */
-	ccu_mux_helper_adjust_parent_for_prediv(&cmp->common, &cmp->mux,
-						-1, &parent_rate);
+	parent_rate = ccu_mux_helper_apply_prediv(&cmp->common, &cmp->mux, -1,
+						  parent_rate);
 
 	max_m = cmp->m.max ?: 1 << cmp->m.width;
 	max_p = cmp->p.max ?: 1 << ((1 << cmp->p.width) - 1);

drivers/clk/sunxi-ng/ccu_mult.c

@@ -33,9 +33,10 @@ static void ccu_mult_find_best(unsigned long parent, unsigned long rate,
 }
 
 static unsigned long ccu_mult_round_rate(struct ccu_mux_internal *mux,
-					unsigned long parent_rate,
-					unsigned long rate,
-					void *data)
+					 struct clk_hw *parent,
+					 unsigned long *parent_rate,
+					 unsigned long rate,
+					 void *data)
 {
 	struct ccu_mult *cm = data;
 	struct _ccu_mult _cm;
@@ -47,9 +48,9 @@ static unsigned long ccu_mult_round_rate(struct ccu_mux_internal *mux,
 	else
 		_cm.max = (1 << cm->mult.width) + cm->mult.offset - 1;
 
-	ccu_mult_find_best(parent_rate, rate, &_cm);
+	ccu_mult_find_best(*parent_rate, rate, &_cm);
 
-	return parent_rate * _cm.mult;
+	return *parent_rate * _cm.mult;
 }
 
 static void ccu_mult_disable(struct clk_hw *hw)
@@ -87,8 +88,8 @@ static unsigned long ccu_mult_recalc_rate(struct clk_hw *hw,
 	val = reg >> cm->mult.shift;
 	val &= (1 << cm->mult.width) - 1;
 
-	ccu_mux_helper_adjust_parent_for_prediv(&cm->common, &cm->mux, -1,
-						&parent_rate);
+	parent_rate = ccu_mux_helper_apply_prediv(&cm->common, &cm->mux, -1,
+						  parent_rate);
 
 	return parent_rate * (val + cm->mult.offset);
 }
@@ -115,8 +116,8 @@ static int ccu_mult_set_rate(struct clk_hw *hw, unsigned long rate,
 	else
 		ccu_frac_helper_disable(&cm->common, &cm->frac);
 
-	ccu_mux_helper_adjust_parent_for_prediv(&cm->common, &cm->mux, -1,
-						&parent_rate);
+	parent_rate = ccu_mux_helper_apply_prediv(&cm->common, &cm->mux, -1,
+						  parent_rate);
 
 	_cm.min = cm->mult.min;
 

drivers/clk/sunxi-ng/ccu_mux.c

@@ -15,24 +15,20 @@
 #include "ccu_gate.h"
 #include "ccu_mux.h"
 
-void ccu_mux_helper_adjust_parent_for_prediv(struct ccu_common *common,
-					     struct ccu_mux_internal *cm,
-					     int parent_index,
-					     unsigned long *parent_rate)
+static u16 ccu_mux_get_prediv(struct ccu_common *common,
+			      struct ccu_mux_internal *cm,
+			      int parent_index)
 {
 	u16 prediv = 1;
 	u32 reg;
-	int i;
 
 	if (!((common->features & CCU_FEATURE_FIXED_PREDIV) ||
 	      (common->features & CCU_FEATURE_VARIABLE_PREDIV) ||
 	      (common->features & CCU_FEATURE_ALL_PREDIV)))
-		return;
+		return 1;
 
-	if (common->features & CCU_FEATURE_ALL_PREDIV) {
-		*parent_rate = *parent_rate / common->prediv;
-		return;
-	}
+	if (common->features & CCU_FEATURE_ALL_PREDIV)
+		return common->prediv;
 
 	reg = readl(common->base + common->reg);
 	if (parent_index < 0) {
@@ -40,28 +36,52 @@ void ccu_mux_helper_adjust_parent_for_prediv(struct ccu_common *common,
 		parent_index &= (1 << cm->width) - 1;
 	}
 
-	if (common->features & CCU_FEATURE_FIXED_PREDIV)
+	if (common->features & CCU_FEATURE_FIXED_PREDIV) {
+		int i;
+
 		for (i = 0; i < cm->n_predivs; i++)
 			if (parent_index == cm->fixed_predivs[i].index)
 				prediv = cm->fixed_predivs[i].div;
+	}
 
-	if (common->features & CCU_FEATURE_VARIABLE_PREDIV)
-		if (parent_index == cm->variable_prediv.index) {
-			u8 div;
+	if (common->features & CCU_FEATURE_VARIABLE_PREDIV) {
+		int i;
 
-			div = reg >> cm->variable_prediv.shift;
-			div &= (1 << cm->variable_prediv.width) - 1;
-			prediv = div + 1;
-		}
+		for (i = 0; i < cm->n_var_predivs; i++)
+			if (parent_index == cm->var_predivs[i].index) {
+				u8 div;
+
+				div = reg >> cm->var_predivs[i].shift;
+				div &= (1 << cm->var_predivs[i].width) - 1;
+				prediv = div + 1;
+			}
+	}
+
+	return prediv;
+}
 
-	*parent_rate = *parent_rate / prediv;
+unsigned long ccu_mux_helper_apply_prediv(struct ccu_common *common,
+					  struct ccu_mux_internal *cm,
+					  int parent_index,
+					  unsigned long parent_rate)
+{
+	return parent_rate / ccu_mux_get_prediv(common, cm, parent_index);
+}
+
+unsigned long ccu_mux_helper_unapply_prediv(struct ccu_common *common,
+					    struct ccu_mux_internal *cm,
+					    int parent_index,
+					    unsigned long parent_rate)
+{
+	return parent_rate * ccu_mux_get_prediv(common, cm, parent_index);
 }
 
 int ccu_mux_helper_determine_rate(struct ccu_common *common,
 				  struct ccu_mux_internal *cm,
 				  struct clk_rate_request *req,
 				  unsigned long (*round)(struct ccu_mux_internal *,
-							 unsigned long,
+							 struct clk_hw *,
+							 unsigned long *,
 							 unsigned long,
 							 void *),
 				  void *data)
@@ -75,41 +95,43 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
 
 		best_parent = clk_hw_get_parent(hw);
 		best_parent_rate = clk_hw_get_rate(best_parent);
+		adj_parent_rate = ccu_mux_helper_apply_prediv(common, cm, -1,
+							      best_parent_rate);
 
-		adj_parent_rate = best_parent_rate;
-		ccu_mux_helper_adjust_parent_for_prediv(common, cm, -1,
-							&adj_parent_rate);
+		best_rate = round(cm, best_parent, &adj_parent_rate,
+				  req->rate, data);
 
-		best_rate = round(cm, adj_parent_rate, req->rate, data);
+		/*
+		 * adj_parent_rate might have been modified by our clock.
+		 * Unapply the pre-divider if there's one, and give
+		 * the actual frequency the parent needs to run at.
+		 */
+		best_parent_rate = ccu_mux_helper_unapply_prediv(common, cm, -1,
+								 adj_parent_rate);
 
 		goto out;
 	}
 
 	for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
-		unsigned long tmp_rate, parent_rate, adj_parent_rate;
+		unsigned long tmp_rate, parent_rate;
 		struct clk_hw *parent;
 
 		parent = clk_hw_get_parent_by_index(hw, i);
 		if (!parent)
 			continue;
 
-		if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) {
-			struct clk_rate_request parent_req = *req;
-			int ret = __clk_determine_rate(parent, &parent_req);
-
-			if (ret)
-				continue;
+		parent_rate = ccu_mux_helper_apply_prediv(common, cm, i,
+							  clk_hw_get_rate(parent));
 
-			parent_rate = parent_req.rate;
-		} else {
-			parent_rate = clk_hw_get_rate(parent);
-		}
+		tmp_rate = round(cm, parent, &parent_rate, req->rate, data);
 
-		adj_parent_rate = parent_rate;
-		ccu_mux_helper_adjust_parent_for_prediv(common, cm, i,
-							&adj_parent_rate);
-
-		tmp_rate = round(cm, adj_parent_rate, req->rate, data);
+		/*
+		 * parent_rate might have been modified by our clock.
+		 * Unapply the pre-divider if there's one, and give
+		 * the actual frequency the parent needs to run at.
+		 */
+		parent_rate = ccu_mux_helper_unapply_prediv(common, cm, i,
+							    parent_rate);
 		if (tmp_rate == req->rate) {
 			best_parent = parent;
 			best_parent_rate = parent_rate;
@@ -217,10 +239,8 @@ static unsigned long ccu_mux_recalc_rate(struct clk_hw *hw,
 {
 	struct ccu_mux *cm = hw_to_ccu_mux(hw);
 
-	ccu_mux_helper_adjust_parent_for_prediv(&cm->common, &cm->mux, -1,
-						&parent_rate);
-
-	return parent_rate;
+	return ccu_mux_helper_apply_prediv(&cm->common, &cm->mux, -1,
+					   parent_rate);
 }
 
 const struct clk_ops ccu_mux_ops = {

drivers/clk/sunxi-ng/ccu_mux.h

@@ -10,6 +10,12 @@ struct ccu_mux_fixed_prediv {
 	u16	div;
 };
 
+struct ccu_mux_var_prediv {
+	u8	index;
+	u8	shift;
+	u8	width;
+};
+
 struct ccu_mux_internal {
 	u8		shift;
 	u8		width;
@@ -18,11 +24,8 @@ struct ccu_mux_internal {
 	const struct ccu_mux_fixed_prediv	*fixed_predivs;
 	u8		n_predivs;
 
-	struct {
-		u8	index;
-		u8	shift;
-		u8	width;
-	} variable_prediv;
+	const struct ccu_mux_var_prediv		*var_predivs;
+	u8		n_var_predivs;
 };
 
 #define _SUNXI_CCU_MUX_TABLE(_shift, _width, _table)	\
@@ -78,15 +81,16 @@ static inline struct ccu_mux *hw_to_ccu_mux(struct clk_hw *hw)
 
 extern const struct clk_ops ccu_mux_ops;
 
-void ccu_mux_helper_adjust_parent_for_prediv(struct ccu_common *common,
-					     struct ccu_mux_internal *cm,
-					     int parent_index,
-					     unsigned long *parent_rate);
+unsigned long ccu_mux_helper_apply_prediv(struct ccu_common *common,
+					  struct ccu_mux_internal *cm,
+					  int parent_index,
+					  unsigned long parent_rate);
 int ccu_mux_helper_determine_rate(struct ccu_common *common,
 				  struct ccu_mux_internal *cm,
 				  struct clk_rate_request *req,
 				  unsigned long (*round)(struct ccu_mux_internal *,
-							 unsigned long,
+							 struct clk_hw *,
+							 unsigned long *,
 							 unsigned long,
 							 void *),
 				  void *data);

drivers/clk/sunxi-ng/ccu_nkm.c

@@ -102,7 +102,8 @@ static unsigned long ccu_nkm_recalc_rate(struct clk_hw *hw,
 }
 
 static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux,
-					unsigned long parent_rate,
+					struct clk_hw *hw,
+					unsigned long *parent_rate,
 					unsigned long rate,
 					void *data)
 {
@@ -116,9 +117,9 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux,
 	_nkm.min_m = 1;
 	_nkm.max_m = nkm->m.max ?: 1 << nkm->m.width;
 
-	ccu_nkm_find_best(parent_rate, rate, &_nkm);
+	ccu_nkm_find_best(*parent_rate, rate, &_nkm);
 
-	return parent_rate * _nkm.n * _nkm.k / _nkm.m;
+	return *parent_rate * _nkm.n * _nkm.k / _nkm.m;
 }
 
 static int ccu_nkm_determine_rate(struct clk_hw *hw,

drivers/clk/sunxi-ng/ccu_reset.h

@@ -15,6 +15,7 @@
 #define _CCU_RESET_H_
 
 #include <linux/reset-controller.h>
+#include <linux/spinlock.h>
 
 struct ccu_reset_map {
 	u16	reg;

include/dt-bindings/clock/sun5i-ccu.h

@@ -19,6 +19,9 @@
 
 #define CLK_HOSC		1
 
+#define CLK_PLL_VIDEO0_2X	9
+
+#define CLK_PLL_VIDEO1_2X	16
 #define CLK_CPU			17
 
 #define CLK_AHB_OTG		23

include/dt-bindings/clock/sun8i-a83t-ccu.h

+/*
+ * Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_SUN8I_A83T_CCU_H_
+#define _DT_BINDINGS_CLOCK_SUN8I_A83T_CCU_H_
+
+#define CLK_PLL_PERIPH		6
+
+#define CLK_PLL_DE		9
+
+#define CLK_C0CPUX		11
+#define CLK_C1CPUX		12
+
+#define CLK_BUS_MIPI_DSI	19
+#define CLK_BUS_SS		20
+#define CLK_BUS_DMA		21
+#define CLK_BUS_MMC0		22
+#define CLK_BUS_MMC1		23
+#define CLK_BUS_MMC2		24
+#define CLK_BUS_NAND		25
+#define CLK_BUS_DRAM		26
+#define CLK_BUS_EMAC		27
+#define CLK_BUS_HSTIMER		28
+#define CLK_BUS_SPI0		29
+#define CLK_BUS_SPI1		30
+#define CLK_BUS_OTG		31
+#define CLK_BUS_EHCI0		32
+#define CLK_BUS_EHCI1		33
+#define CLK_BUS_OHCI0		34
+
+#define CLK_BUS_VE		35
+#define CLK_BUS_TCON0		36
+#define CLK_BUS_TCON1		37
+#define CLK_BUS_CSI		38
+#define CLK_BUS_HDMI		39
+#define CLK_BUS_DE		40
+#define CLK_BUS_GPU		41
+#define CLK_BUS_MSGBOX		42
+#define CLK_BUS_SPINLOCK	43
+
+#define CLK_BUS_SPDIF		44
+#define CLK_BUS_PIO		45
+#define CLK_BUS_I2S0		46
+#define CLK_BUS_I2S1		47
+#define CLK_BUS_I2S2		48
+#define CLK_BUS_TDM		49
+
+#define CLK_BUS_I2C0		50
+#define CLK_BUS_I2C1		51
+#define CLK_BUS_I2C2		52
+#define CLK_BUS_UART0		53
+#define CLK_BUS_UART1		54
+#define CLK_BUS_UART2		55
+#define CLK_BUS_UART3		56
+#define CLK_BUS_UART4		57
+
+#define CLK_NAND		59
+#define CLK_MMC0		60
+#define CLK_MMC0_SAMPLE		61
+#define CLK_MMC0_OUTPUT		62
+#define CLK_MMC1		63
+#define CLK_MMC1_SAMPLE		64
+#define CLK_MMC1_OUTPUT		65
+#define CLK_MMC2		66
+#define CLK_MMC2_SAMPLE		67
+#define CLK_MMC2_OUTPUT		68
+#define CLK_SS			69
+#define CLK_SPI0		70
+#define CLK_SPI1		71
+#define CLK_I2S0		72
+#define CLK_I2S1		73
+#define CLK_I2S2		74
+#define CLK_TDM			75
+#define CLK_SPDIF		76
+#define CLK_USB_PHY0		77
+#define CLK_USB_PHY1		78
+#define CLK_USB_HSIC		79
+#define CLK_USB_HSIC_12M	80
+#define CLK_USB_OHCI0		81
+
+#define CLK_DRAM_VE		83
+#define CLK_DRAM_CSI		84
+
+#define CLK_TCON0		85
+#define CLK_TCON1		86
+#define CLK_CSI_MISC		87
+#define CLK_MIPI_CSI		88
+#define CLK_CSI_MCLK		89
+#define CLK_CSI_SCLK		90
+#define CLK_VE			91
+#define CLK_AVS			92
+#define CLK_HDMI		93
+#define CLK_HDMI_SLOW		94
+
+#define CLK_MIPI_DSI0		96
+#define CLK_MIPI_DSI1		97
+#define CLK_GPU_CORE		98
+#define CLK_GPU_MEMORY		99
+#define CLK_GPU_HYD		100
+
+#endif /* _DT_BINDINGS_CLOCK_SUN8I_A83T_CCU_H_ */

include/dt-bindings/clock/sun8i-de2.h

+/*
+ * Copyright (C) 2016 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_SUN8I_DE2_H_
+#define _DT_BINDINGS_CLOCK_SUN8I_DE2_H_
+
+#define CLK_BUS_MIXER0		0
+#define CLK_BUS_MIXER1		1
+#define CLK_BUS_WB		2
+
+#define CLK_MIXER0		6
+#define CLK_MIXER1		7
+#define CLK_WB			8
+
+#endif /* _DT_BINDINGS_CLOCK_SUN8I_DE2_H_ */

include/dt-bindings/reset/sun8i-a83t-ccu.h

+/*
+ * Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DT_BINDINGS_RESET_SUN8I_A83T_CCU_H_
+#define _DT_BINDINGS_RESET_SUN8I_A83T_CCU_H_
+
+#define RST_USB_PHY0		0
+#define RST_USB_PHY1		1
+#define RST_USB_HSIC		2
+
+#define RST_DRAM		3
+#define RST_MBUS		4
+
+#define RST_BUS_MIPI_DSI	5
+#define RST_BUS_SS		6
+#define RST_BUS_DMA		7
+#define RST_BUS_MMC0		8
+#define RST_BUS_MMC1		9
+#define RST_BUS_MMC2		10
+#define RST_BUS_NAND		11
+#define RST_BUS_DRAM		12
+#define RST_BUS_EMAC		13
+#define RST_BUS_HSTIMER		14
+#define RST_BUS_SPI0		15
+#define RST_BUS_SPI1		16
+#define RST_BUS_OTG		17
+#define RST_BUS_EHCI0		18
+#define RST_BUS_EHCI1		19
+#define RST_BUS_OHCI0		20
+
+#define RST_BUS_VE		21
+#define RST_BUS_TCON0		22
+#define RST_BUS_TCON1		23
+#define RST_BUS_CSI		24
+#define RST_BUS_HDMI0		25
+#define RST_BUS_HDMI1		26
+#define RST_BUS_DE		27
+#define RST_BUS_GPU		28
+#define RST_BUS_MSGBOX		29
+#define RST_BUS_SPINLOCK	30
+
+#define RST_BUS_LVDS		31
+
+#define RST_BUS_SPDIF		32
+#define RST_BUS_I2S0		33
+#define RST_BUS_I2S1		34
+#define RST_BUS_I2S2		35
+#define RST_BUS_TDM		36
+
+#define RST_BUS_I2C0		37
+#define RST_BUS_I2C1		38
+#define RST_BUS_I2C2		39
+#define RST_BUS_UART0		40
+#define RST_BUS_UART1		41
+#define RST_BUS_UART2		42
+#define RST_BUS_UART3		43
+#define RST_BUS_UART4		44
+
+#endif /* _DT_BINDINGS_RESET_SUN8I_A83T_CCU_H_ */

include/dt-bindings/reset/sun8i-de2.h

+/*
+ * Copyright (C) 2016 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#ifndef _DT_BINDINGS_RESET_SUN8I_DE2_H_
+#define _DT_BINDINGS_RESET_SUN8I_DE2_H_
+
+#define RST_MIXER0	0
+#define RST_MIXER1	1
+#define RST_WB		2
+
+#endif /* _DT_BINDINGS_RESET_SUN8I_DE2_H_ */

include/linux/clk-provider.h

@@ -412,9 +412,10 @@ extern const struct clk_ops clk_divider_ro_ops;
 unsigned long divider_recalc_rate(struct clk_hw *hw, unsigned long parent_rate,
 		unsigned int val, const struct clk_div_table *table,
 		unsigned long flags);
-long divider_round_rate(struct clk_hw *hw, unsigned long rate,
-		unsigned long *prate, const struct clk_div_table *table,
-		u8 width, unsigned long flags);
+long divider_round_rate_parent(struct clk_hw *hw, struct clk_hw *parent,
+			       unsigned long rate, unsigned long *prate,
+			       const struct clk_div_table *table,
+			       u8 width, unsigned long flags);
 int divider_get_val(unsigned long rate, unsigned long parent_rate,
 		const struct clk_div_table *table, u8 width,
 		unsigned long flags);
@@ -757,6 +758,15 @@ static inline void __clk_hw_set_clk(struct clk_hw *dst, struct clk_hw *src)
 	dst->core = src->core;
 }
 
+static inline long divider_round_rate(struct clk_hw *hw, unsigned long rate,
+				      unsigned long *prate,
+				      const struct clk_div_table *table,
+				      u8 width, unsigned long flags)
+{
+	return divider_round_rate_parent(hw, clk_hw_get_parent(hw),
+					 rate, prate, table, width, flags);
+}
+
 /*
  * FIXME clock api without lock protection
  */