Merge branch 'for-v3.17/omap2-use-dt-clks' of...

Merge branch 'for-v3.17/omap2-use-dt-clks' of http://github.com/t-kristo/linux-pm into omap-for-v3.17/dt

Documentation/devicetree/bindings/arm/omap/prcm.txt

+OMAP PRCM bindings
+
+Power Reset and Clock Manager lists the device clocks and clockdomains under
+a DT hierarchy. Each TI SoC can have multiple PRCM entities listed for it,
+each describing one module and the clock hierarchy under it. see [1] for
+documentation about the individual clock/clockdomain nodes.
+
+[1] Documentation/devicetree/bindings/clock/ti/*
+
+Required properties:
+- compatible:	Must be one of:
+		"ti,am3-prcm"
+		"ti,am3-scrm"
+		"ti,am4-prcm"
+		"ti,am4-scrm"
+		"ti,omap2-prcm"
+		"ti,omap2-scrm"
+		"ti,omap3-prm"
+		"ti,omap3-cm"
+		"ti,omap3-scrm"
+		"ti,omap4-cm1"
+		"ti,omap4-prm"
+		"ti,omap4-cm2"
+		"ti,omap4-scrm"
+		"ti,omap5-prm"
+		"ti,omap5-cm-core-aon"
+		"ti,omap5-scrm"
+		"ti,omap5-cm-core"
+		"ti,dra7-prm"
+		"ti,dra7-cm-core-aon"
+		"ti,dra7-cm-core"
+- reg:		Contains PRCM module register address range
+		(base address and length)
+- clocks:	clocks for this module
+- clockdomains:	clockdomains for this module
+
+Example:
+
+cm: cm@48004000 {
+	compatible = "ti,omap3-cm";
+	reg = <0x48004000 0x4000>;
+
+	cm_clocks: clocks {
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+
+	cm_clockdomains: clockdomains {
+	};
+}
+
+&cm_clocks {
+	omap2_32k_fck: omap_32k_fck {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+	};
+};
+
+&cm_clockdomains {
+	core_l3_clkdm: core_l3_clkdm {
+		compatible = "ti,clockdomain";
+		clocks = <&sdrc_ick>;
+	};
+};

arch/arm/boot/dts/omap2420.dtsi

@@ -182,3 +182,6 @@ &i2c1 {
 &i2c2 {
 	compatible = "ti,omap2420-i2c";
 };
+
+/include/ "omap24xx-clocks.dtsi"
+/include/ "omap2420-clocks.dtsi"

arch/arm/boot/dts/omap2430.dtsi

@@ -288,3 +288,6 @@ &i2c1 {
 &i2c2 {
 	compatible = "ti,omap2430-i2c";
 };
+
+/include/ "omap24xx-clocks.dtsi"
+/include/ "omap2430-clocks.dtsi"

arch/arm/mach-omap2/Makefile

@@ -174,13 +174,11 @@ obj-$(CONFIG_SOC_DRA7XX)		+= clockdomains7xx_data.o
 
 # Clock framework
 obj-$(CONFIG_ARCH_OMAP2)		+= $(clock-common) clock2xxx.o
-obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_sys.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpllcore.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_virt_prcm_set.o
-obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_apll.o clkt2xxx_osc.o
+obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_apll.o
 obj-$(CONFIG_ARCH_OMAP2)		+= clkt2xxx_dpll.o clkt_iclk.o
-obj-$(CONFIG_SOC_OMAP2420)		+= cclock2420_data.o
-obj-$(CONFIG_SOC_OMAP2430)		+= clock2430.o cclock2430_data.o
+obj-$(CONFIG_SOC_OMAP2430)		+= clock2430.o
 obj-$(CONFIG_ARCH_OMAP3)		+= $(clock-common) clock3xxx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= clock34xx.o clkt34xx_dpll3m2.o
 obj-$(CONFIG_ARCH_OMAP3)		+= clock3517.o clock36xx.o

arch/arm/mach-omap2/clkt2xxx_osc.c

-/*
- * OMAP2xxx osc_clk-specific clock code
- *
- * Copyright (C) 2005-2008 Texas Instruments, Inc.
- * Copyright (C) 2004-2010 Nokia Corporation
- *
- * Contacts:
- * Richard Woodruff <r-woodruff2@ti.com>
- * Paul Walmsley
- *
- * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
- * Gordon McNutt and RidgeRun, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#undef DEBUG
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-#include "clock.h"
-#include "clock2xxx.h"
-#include "prm2xxx_3xxx.h"
-#include "prm-regbits-24xx.h"
-
-/*
- * XXX This does not actually enable the osc_ck, since the osc_ck must
- * be running for this function to be called.  Instead, this function
- * is used to disable an autoidle mode on the osc_ck.  The existing
- * clk_enable/clk_disable()-based usecounting for osc_ck should be
- * replaced with autoidle-based usecounting.
- */
-int omap2_enable_osc_ck(struct clk_hw *clk)
-{
-	u32 pcc;
-
-	pcc = readl_relaxed(prcm_clksrc_ctrl);
-
-	writel_relaxed(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-
-	return 0;
-}
-
-/*
- * XXX This does not actually disable the osc_ck, since doing so would
- * immediately halt the system.  Instead, this function is used to
- * enable an autoidle mode on the osc_ck.  The existing
- * clk_enable/clk_disable()-based usecounting for osc_ck should be
- * replaced with autoidle-based usecounting.
- */
-void omap2_disable_osc_ck(struct clk_hw *clk)
-{
-	u32 pcc;
-
-	pcc = readl_relaxed(prcm_clksrc_ctrl);
-
-	writel_relaxed(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
-}
-
-unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
-				   unsigned long parent_rate)
-{
-	return omap2xxx_get_apll_clkin() * omap2xxx_get_sysclkdiv();
-}

arch/arm/mach-omap2/clkt2xxx_sys.c

-/*
- * OMAP2xxx sys_clk-specific clock code
- *
- * Copyright (C) 2005-2008 Texas Instruments, Inc.
- * Copyright (C) 2004-2010 Nokia Corporation
- *
- * Contacts:
- * Richard Woodruff <r-woodruff2@ti.com>
- * Paul Walmsley
- *
- * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
- * Gordon McNutt and RidgeRun, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-#include "clock.h"
-#include "clock2xxx.h"
-#include "prm2xxx_3xxx.h"
-#include "prm-regbits-24xx.h"
-
-void __iomem *prcm_clksrc_ctrl;
-
-u32 omap2xxx_get_sysclkdiv(void)
-{
-	u32 div;
-
-	div = readl_relaxed(prcm_clksrc_ctrl);
-	div &= OMAP_SYSCLKDIV_MASK;
-	div >>= OMAP_SYSCLKDIV_SHIFT;
-
-	return div;
-}
-
-unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
-				      unsigned long parent_rate)
-{
-	return parent_rate / omap2xxx_get_sysclkdiv();
-}

arch/arm/mach-omap2/clock.c

@@ -81,27 +81,6 @@ u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg)
 	return val;
 }
 
-/*
- * Used for clocks that have the same value as the parent clock,
- * divided by some factor
- */
-unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
-		unsigned long parent_rate)
-{
-	struct clk_hw_omap *oclk;
-
-	if (!hw) {
-		pr_warn("%s: hw is NULL\n", __func__);
-		return -EINVAL;
-	}
-
-	oclk = to_clk_hw_omap(hw);
-
-	WARN_ON(!oclk->fixed_div);
-
-	return parent_rate / oclk->fixed_div;
-}
-
 /*
  * OMAP2+ specific clock functions
  */

arch/arm/mach-omap2/clock.h

@@ -178,9 +178,6 @@ struct clksel {
 	const struct clksel_rate *rates;
 };
 
-unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
-					unsigned long parent_rate);
-
 /* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */
 #define CORE_CLK_SRC_32K		0x0
 #define CORE_CLK_SRC_DPLL		0x1

arch/arm/mach-omap2/clock2xxx.h

@@ -45,8 +45,6 @@ int omap2430_clk_init(void);
 #define omap2430_clk_init()	do { } while(0)
 #endif
 
-extern void __iomem *prcm_clksrc_ctrl;
-
 extern struct clk_hw *dclk_hw;
 int omap2_enable_osc_ck(struct clk_hw *hw);
 void omap2_disable_osc_ck(struct clk_hw *hw);

arch/arm/mach-omap2/cm-regbits-24xx.h

@@ -107,6 +107,7 @@
 #define OMAP24XX_AUTO_DPLL_SHIFT			0
 #define OMAP24XX_AUTO_DPLL_MASK				(0x3 << 0)
 #define OMAP24XX_APLLS_CLKIN_SHIFT			23
+#define OMAP24XX_APLLS_CLKIN_WIDTH			3
 #define OMAP24XX_APLLS_CLKIN_MASK			(0x7 << 23)
 #define OMAP24XX_DPLL_MULT_MASK				(0x3ff << 12)
 #define OMAP24XX_DPLL_DIV_MASK				(0xf << 8)

arch/arm/mach-omap2/io.c

@@ -53,6 +53,7 @@
 #include "prm2xxx.h"
 #include "prm3xxx.h"
 #include "prm44xx.h"
+#include "opp2xxx.h"
 
 /*
  * omap_clk_soc_init: points to a function that does the SoC-specific
@@ -410,7 +411,8 @@ void __init omap2420_init_early(void)
 	omap242x_clockdomains_init();
 	omap2420_hwmod_init();
 	omap_hwmod_init_postsetup();
-	omap_clk_soc_init = omap2420_clk_init;
+	omap_clk_soc_init = omap2420_dt_clk_init;
+	rate_table = omap2420_rate_table;
 }
 
 void __init omap2420_init_late(void)
@@ -439,7 +441,8 @@ void __init omap2430_init_early(void)
 	omap243x_clockdomains_init();
 	omap2430_hwmod_init();
 	omap_hwmod_init_postsetup();
-	omap_clk_soc_init = omap2430_clk_init;
+	omap_clk_soc_init = omap2430_dt_clk_init;
+	rate_table = omap2430_rate_table;
 }
 
 void __init omap2430_init_late(void)

arch/arm/mach-omap2/pm24xx.c

@@ -249,6 +249,10 @@ static void __init prcm_setup_regs(void)
 	/* Enable wake-up events */
 	omap2_prm_write_mod_reg(OMAP24XX_EN_GPIOS_MASK | OMAP24XX_EN_GPT1_MASK,
 				WKUP_MOD, PM_WKEN);
+
+	/* Enable SYS_CLKEN control when all domains idle */
+	omap2_prm_set_mod_reg_bits(OMAP_AUTOEXTCLKMODE_MASK, OMAP24XX_GR_MOD,
+				   OMAP2_PRCM_CLKSRC_CTRL_OFFSET);
 }
 
 int __init omap2_pm_init(void)

arch/arm/mach-omap2/prm_common.c

@@ -472,6 +472,8 @@ static struct of_device_id omap_prcm_dt_match_table[] = {
 	{ .compatible = "ti,am3-scrm" },
 	{ .compatible = "ti,am4-prcm" },
 	{ .compatible = "ti,am4-scrm" },
+	{ .compatible = "ti,omap2-prcm" },
+	{ .compatible = "ti,omap2-scrm" },
 	{ .compatible = "ti,omap3-prm" },
 	{ .compatible = "ti,omap3-cm" },
 	{ .compatible = "ti,omap3-scrm" },