Merge tag 'omap-for-v3.8/cleanup-prcm-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren <tony@atomide.com>:

More PRCM cleanups via Paul Walmsley <paul@pwsan.com>:

Second set of OMAP PRCM cleanups for 3.8.

These patches remove the use of omap_prcm_get_reset_sources() from the
OMAP watchdog driver, and remove mach-omap2/prcm.c and
plat-omap/include/plat/prcm.h.

Basic test logs for this branch on top of Tony's cleanup-prcm branch
at commit 7fc54fd3084457c7f11b9e2e1e3fcd19a3badc33 are here:

    http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/

However, cleanup-prcm at 7fc54fd3 does not include some fixes
that are needed for a successful test.  With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:

    http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/

which indicate that the series tests cleanly.

This second pull request updates one of the patches which broke
with rmk's allnoconfigs, and also updates the tag description to
indicate that 7fc54fd3 is building cleanly here.

* tag 'omap-for-v3.8/cleanup-prcm-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (27 commits)
  ARM: OMAP2: Fix compillation error in cm_common
  ARM: OMAP2+: PRCM: remove obsolete prcm.[ch]
  ARM: OMAP2+: hwmod: call to _omap4_disable_module() should use the SoC-specific call
  ARM: OMAP2+: PRCM: consolidate PRCM-related timeout macros
  ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup
  ARM: OMAP2+: PRCM: remove omap2_cm_wait_idlest()
  ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use SoC-independent CM functions
  ARM: OMAP2xxx: APLL/CM: convert to use omap2_cm_wait_module_ready()
  ARM: OMAP2+: board files: use SoC-specific system restart functions
  ARM: OMAP2+: PRCM: create SoC-specific chip restart functions
  ARM: OMAP2xxx: clock: move virt_prcm_set code into clkt2xxx_virt_prcm_set.c
  ARM: OMAP2xxx: clock: remove global 'dclk' variable
  ARM: OMAP2/3: PRM: add SoC reset functions (using the CORE DPLL method)
  ARM: OMAP2+: common: remove mach-omap2/common.c globals and map_common_io code
  ARM: OMAP2+: PRCM: remove omap_prcm_get_reset_sources()
  watchdog: OMAP: use standard GETBOOTSTATUS interface; use platform_data fn ptr
  ARM: OMAP2+: WDT: move init; add read_reset_sources pdata function pointer
  ARM: OMAP1: CGRM: fix omap1_get_reset_sources() return type
  ARM: OMAP2+: PRM: create PRM reset source API for the watchdog timer driver
  ARM: OMAP1: create read_reset_sources() function (for initial use by watchdog)
  ...

Conflicts:
	arch/arm/mach-omap2/cm33xx.c
	arch/arm/mach-omap2/io.c
	arch/arm/mach-omap2/prm_common.c

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

1 files changed, 665 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
new file mode 100644
index 00000000000..c2086f2e86b
--- /dev/null
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -0,0 +1,665 @@
+/*
+ * OMAP3xxx CM module functions
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Copyright (C) 2008-2010, 2012 Texas Instruments, Inc.
+ * Paul Walmsley
+ * Rajendra Nayak <rnayak@ti.com>
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include "soc.h"
+#include "iomap.h"
+#include "common.h"
+#include "prm2xxx_3xxx.h"
+#include "cm.h"
+#include "cm3xxx.h"
+#include "cm-regbits-34xx.h"
+#include "clockdomain.h"
+
+static const u8 omap3xxx_cm_idlest_offs[] = {
+	CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3
+};
+
+/*
+ *
+ */
+
+static void _write_clktrctrl(u8 c, s16 module, u32 mask)
+{
+	u32 v;
+
+	v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
+	v &= ~mask;
+	v |= c << __ffs(mask);
+	omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL);
+}
+
+bool omap3xxx_cm_is_clkdm_in_hwsup(s16 module, u32 mask)
+{
+	u32 v;
+
+	v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
+	v &= mask;
+	v >>= __ffs(mask);
+
+	return (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
+}
+
+void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
+{
+	_write_clktrctrl(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
+}
+
+void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
+{
+	_write_clktrctrl(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
+}
+
+void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask)
+{
+	_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, module, mask);
+}
+
+void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask)
+{
+	_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, module, mask);
+}
+
+/*
+ *
+ */
+
+/**
+ * omap3xxx_cm_wait_module_ready - wait for a module to leave idle or standby
+ * @prcm_mod: PRCM module offset
+ * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3)
+ * @idlest_shift: shift of the bit in the CM_IDLEST* register to check
+ *
+ * Wait for the PRCM to indicate that the module identified by
+ * (@prcm_mod, @idlest_id, @idlest_shift) is clocked.  Return 0 upon
+ * success or -EBUSY if the module doesn't enable in time.
+ */
+int omap3xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
+{
+	int ena = 0, i = 0;
+	u8 cm_idlest_reg;
+	u32 mask;
+
+	if (!idlest_id || (idlest_id > ARRAY_SIZE(omap3xxx_cm_idlest_offs)))
+		return -EINVAL;
+
+	cm_idlest_reg = omap3xxx_cm_idlest_offs[idlest_id - 1];
+
+	mask = 1 << idlest_shift;
+	ena = 0;
+
+	omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) &
+			    mask) == ena), MAX_MODULE_READY_TIME, i);
+
+	return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
+}
+
+/**
+ * omap3xxx_cm_split_idlest_reg - split CM_IDLEST reg addr into its components
+ * @idlest_reg: CM_IDLEST* virtual address
+ * @prcm_inst: pointer to an s16 to return the PRCM instance offset
+ * @idlest_reg_id: pointer to a u8 to return the CM_IDLESTx register ID
+ *
+ * XXX This function is only needed until absolute register addresses are
+ * removed from the OMAP struct clk records.
+ */
+int omap3xxx_cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst,
+				 u8 *idlest_reg_id)
+{
+	unsigned long offs;
+	u8 idlest_offs;
+	int i;
+
+	if (idlest_reg < (cm_base + OMAP3430_IVA2_MOD) ||
+	    idlest_reg > (cm_base + 0x1ffff))
+		return -EINVAL;
+
+	idlest_offs = (unsigned long)idlest_reg & 0xff;
+	for (i = 0; i < ARRAY_SIZE(omap3xxx_cm_idlest_offs); i++) {
+		if (idlest_offs == omap3xxx_cm_idlest_offs[i]) {
+			*idlest_reg_id = i + 1;
+			break;
+		}
+	}
+
+	if (i == ARRAY_SIZE(omap3xxx_cm_idlest_offs))
+		return -EINVAL;
+
+	offs = idlest_reg - cm_base;
+	offs &= 0xff00;
+	*prcm_inst = offs;
+
+	return 0;
+}
+
+/* Clockdomain low-level operations */
+
+static int omap3xxx_clkdm_add_sleepdep(struct clockdomain *clkdm1,
+				       struct clockdomain *clkdm2)
+{
+	omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit),
+				  clkdm1->pwrdm.ptr->prcm_offs,
+				  OMAP3430_CM_SLEEPDEP);
+	return 0;
+}
+
+static int omap3xxx_clkdm_del_sleepdep(struct clockdomain *clkdm1,
+				       struct clockdomain *clkdm2)
+{
+	omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
+				    clkdm1->pwrdm.ptr->prcm_offs,
+				    OMAP3430_CM_SLEEPDEP);
+	return 0;
+}
+
+static int omap3xxx_clkdm_read_sleepdep(struct clockdomain *clkdm1,
+					struct clockdomain *clkdm2)
+{
+	return omap2_cm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs,
+					    OMAP3430_CM_SLEEPDEP,
+					    (1 << clkdm2->dep_bit));
+}
+
+static int omap3xxx_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm)
+{
+	struct clkdm_dep *cd;
+	u32 mask = 0;
+
+	for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) {
+		if (!cd->clkdm)
+			continue; /* only happens if data is erroneous */
+
+		mask |= 1 << cd->clkdm->dep_bit;
+		atomic_set(&cd->sleepdep_usecount, 0);
+	}
+	omap2_cm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs,
+				    OMAP3430_CM_SLEEPDEP);
+	return 0;
+}
+
+static int omap3xxx_clkdm_sleep(struct clockdomain *clkdm)
+{
+	omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs,
+				      clkdm->clktrctrl_mask);
+	return 0;
+}
+
+static int omap3xxx_clkdm_wakeup(struct clockdomain *clkdm)
+{
+	omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs,
+				       clkdm->clktrctrl_mask);
+	return 0;
+}
+
+static void omap3xxx_clkdm_allow_idle(struct clockdomain *clkdm)
+{
+	if (atomic_read(&clkdm->usecount) > 0)
+		_clkdm_add_autodeps(clkdm);
+
+	omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+				       clkdm->clktrctrl_mask);
+}
+
+static void omap3xxx_clkdm_deny_idle(struct clockdomain *clkdm)
+{
+	omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+					clkdm->clktrctrl_mask);
+
+	if (atomic_read(&clkdm->usecount) > 0)
+		_clkdm_del_autodeps(clkdm);
+}
+
+static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm)
+{
+	bool hwsup = false;
+
+	if (!clkdm->clktrctrl_mask)
+		return 0;
+
+	/*
+	 * The CLKDM_MISSING_IDLE_REPORTING flag documentation has
+	 * more details on the unpleasant problem this is working
+	 * around
+	 */
+	if ((clkdm->flags & CLKDM_MISSING_IDLE_REPORTING) &&
+	    (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)) {
+		omap3xxx_clkdm_wakeup(clkdm);
+		return 0;
+	}
+
+	hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+					      clkdm->clktrctrl_mask);
+
+	if (hwsup) {
+		/* Disable HW transitions when we are changing deps */
+		omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+						clkdm->clktrctrl_mask);
+		_clkdm_add_autodeps(clkdm);
+		omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+					       clkdm->clktrctrl_mask);
+	} else {
+		if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
+			omap3xxx_clkdm_wakeup(clkdm);
+	}
+
+	return 0;
+}
+
+static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm)
+{
+	bool hwsup = false;
+
+	if (!clkdm->clktrctrl_mask)
+		return 0;
+
+	/*
+	 * The CLKDM_MISSING_IDLE_REPORTING flag documentation has
+	 * more details on the unpleasant problem this is working
+	 * around
+	 */
+	if (clkdm->flags & CLKDM_MISSING_IDLE_REPORTING &&
+	    !(clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) {
+		omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+					       clkdm->clktrctrl_mask);
+		return 0;
+	}
+
+	hwsup = omap3xxx_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+					      clkdm->clktrctrl_mask);
+
+	if (hwsup) {
+		/* Disable HW transitions when we are changing deps */
+		omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+						clkdm->clktrctrl_mask);
+		_clkdm_del_autodeps(clkdm);
+		omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+					       clkdm->clktrctrl_mask);
+	} else {
+		if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)
+			omap3xxx_clkdm_sleep(clkdm);
+	}
+
+	return 0;
+}
+
+struct clkdm_ops omap3_clkdm_operations = {
+	.clkdm_add_wkdep	= omap2_clkdm_add_wkdep,
+	.clkdm_del_wkdep	= omap2_clkdm_del_wkdep,
+	.clkdm_read_wkdep	= omap2_clkdm_read_wkdep,
+	.clkdm_clear_all_wkdeps	= omap2_clkdm_clear_all_wkdeps,
+	.clkdm_add_sleepdep	= omap3xxx_clkdm_add_sleepdep,
+	.clkdm_del_sleepdep	= omap3xxx_clkdm_del_sleepdep,
+	.clkdm_read_sleepdep	= omap3xxx_clkdm_read_sleepdep,
+	.clkdm_clear_all_sleepdeps	= omap3xxx_clkdm_clear_all_sleepdeps,
+	.clkdm_sleep		= omap3xxx_clkdm_sleep,
+	.clkdm_wakeup		= omap3xxx_clkdm_wakeup,
+	.clkdm_allow_idle	= omap3xxx_clkdm_allow_idle,
+	.clkdm_deny_idle	= omap3xxx_clkdm_deny_idle,
+	.clkdm_clk_enable	= omap3xxx_clkdm_clk_enable,
+	.clkdm_clk_disable	= omap3xxx_clkdm_clk_disable,
+};
+
+/*
+ * Context save/restore code - OMAP3 only
+ */
+struct omap3_cm_regs {
+	u32 iva2_cm_clksel1;
+	u32 iva2_cm_clksel2;
+	u32 cm_sysconfig;
+	u32 sgx_cm_clksel;
+	u32 dss_cm_clksel;
+	u32 cam_cm_clksel;
+	u32 per_cm_clksel;
+	u32 emu_cm_clksel;
+	u32 emu_cm_clkstctrl;
+	u32 pll_cm_autoidle;
+	u32 pll_cm_autoidle2;
+	u32 pll_cm_clksel4;
+	u32 pll_cm_clksel5;
+	u32 pll_cm_clken2;
+	u32 cm_polctrl;
+	u32 iva2_cm_fclken;
+	u32 iva2_cm_clken_pll;
+	u32 core_cm_fclken1;
+	u32 core_cm_fclken3;
+	u32 sgx_cm_fclken;
+	u32 wkup_cm_fclken;
+	u32 dss_cm_fclken;
+	u32 cam_cm_fclken;
+	u32 per_cm_fclken;
+	u32 usbhost_cm_fclken;
+	u32 core_cm_iclken1;
+	u32 core_cm_iclken2;
+	u32 core_cm_iclken3;
+	u32 sgx_cm_iclken;
+	u32 wkup_cm_iclken;
+	u32 dss_cm_iclken;
+	u32 cam_cm_iclken;
+	u32 per_cm_iclken;
+	u32 usbhost_cm_iclken;
+	u32 iva2_cm_autoidle2;
+	u32 mpu_cm_autoidle2;
+	u32 iva2_cm_clkstctrl;
+	u32 mpu_cm_clkstctrl;
+	u32 core_cm_clkstctrl;
+	u32 sgx_cm_clkstctrl;
+	u32 dss_cm_clkstctrl;
+	u32 cam_cm_clkstctrl;
+	u32 per_cm_clkstctrl;
+	u32 neon_cm_clkstctrl;
+	u32 usbhost_cm_clkstctrl;
+	u32 core_cm_autoidle1;
+	u32 core_cm_autoidle2;
+	u32 core_cm_autoidle3;
+	u32 wkup_cm_autoidle;
+	u32 dss_cm_autoidle;
+	u32 cam_cm_autoidle;
+	u32 per_cm_autoidle;
+	u32 usbhost_cm_autoidle;
+	u32 sgx_cm_sleepdep;
+	u32 dss_cm_sleepdep;
+	u32 cam_cm_sleepdep;
+	u32 per_cm_sleepdep;
+	u32 usbhost_cm_sleepdep;
+	u32 cm_clkout_ctrl;
+};
+
+static struct omap3_cm_regs cm_context;
+
+void omap3_cm_save_context(void)
+{
+	cm_context.iva2_cm_clksel1 =
+		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
+	cm_context.iva2_cm_clksel2 =
+		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2);
+	cm_context.cm_sysconfig = __raw_readl(OMAP3430_CM_SYSCONFIG);
+	cm_context.sgx_cm_clksel =
+		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL);
+	cm_context.dss_cm_clksel =
+		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL);
+	cm_context.cam_cm_clksel =
+		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL);
+	cm_context.per_cm_clksel =
+		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL);
+	cm_context.emu_cm_clksel =
+		omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
+	cm_context.emu_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
+	/*
+	 * As per erratum i671, ROM code does not respect the PER DPLL
+	 * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
+	 * In this case, even though this register has been saved in
+	 * scratchpad contents, we need to restore AUTO_PERIPH_DPLL
+	 * by ourselves. So, we need to save it anyway.
+	 */
+	cm_context.pll_cm_autoidle =
+		omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
+	cm_context.pll_cm_autoidle2 =
+		omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
+	cm_context.pll_cm_clksel4 =
+		omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4);
+	cm_context.pll_cm_clksel5 =
+		omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5);
+	cm_context.pll_cm_clken2 =
+		omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2);
+	cm_context.cm_polctrl = __raw_readl(OMAP3430_CM_POLCTRL);
+	cm_context.iva2_cm_fclken =
+		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN);
+	cm_context.iva2_cm_clken_pll =
+		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKEN_PLL);
+	cm_context.core_cm_fclken1 =
+		omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
+	cm_context.core_cm_fclken3 =
+		omap2_cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3);
+	cm_context.sgx_cm_fclken =
+		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN);
+	cm_context.wkup_cm_fclken =
+		omap2_cm_read_mod_reg(WKUP_MOD, CM_FCLKEN);
+	cm_context.dss_cm_fclken =
+		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN);
+	cm_context.cam_cm_fclken =
+		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN);
+	cm_context.per_cm_fclken =
+		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN);
+	cm_context.usbhost_cm_fclken =
+		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
+	cm_context.core_cm_iclken1 =
+		omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN1);
+	cm_context.core_cm_iclken2 =
+		omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN2);
+	cm_context.core_cm_iclken3 =
+		omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN3);
+	cm_context.sgx_cm_iclken =
+		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN);
+	cm_context.wkup_cm_iclken =
+		omap2_cm_read_mod_reg(WKUP_MOD, CM_ICLKEN);
+	cm_context.dss_cm_iclken =
+		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN);
+	cm_context.cam_cm_iclken =
+		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN);
+	cm_context.per_cm_iclken =
+		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN);
+	cm_context.usbhost_cm_iclken =
+		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
+	cm_context.iva2_cm_autoidle2 =
+		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
+	cm_context.mpu_cm_autoidle2 =
+		omap2_cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
+	cm_context.iva2_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.mpu_cm_clkstctrl =
+		omap2_cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.core_cm_clkstctrl =
+		omap2_cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.sgx_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.dss_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.cam_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.per_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.neon_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
+	cm_context.usbhost_cm_clkstctrl =
+		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
+				      OMAP2_CM_CLKSTCTRL);
+	cm_context.core_cm_autoidle1 =
+		omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
+	cm_context.core_cm_autoidle2 =
+		omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2);
+	cm_context.core_cm_autoidle3 =
+		omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3);
+	cm_context.wkup_cm_autoidle =
+		omap2_cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE);
+	cm_context.dss_cm_autoidle =
+		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE);
+	cm_context.cam_cm_autoidle =
+		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE);
+	cm_context.per_cm_autoidle =
+		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE);
+	cm_context.usbhost_cm_autoidle =
+		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
+	cm_context.sgx_cm_sleepdep =
+		omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
+				      OMAP3430_CM_SLEEPDEP);
+	cm_context.dss_cm_sleepdep =
+		omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP);
+	cm_context.cam_cm_sleepdep =
+		omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP);
+	cm_context.per_cm_sleepdep =
+		omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP);
+	cm_context.usbhost_cm_sleepdep =
+		omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
+				      OMAP3430_CM_SLEEPDEP);
+	cm_context.cm_clkout_ctrl =
+		omap2_cm_read_mod_reg(OMAP3430_CCR_MOD,
+				      OMAP3_CM_CLKOUT_CTRL_OFFSET);
+}
+
+void omap3_cm_restore_context(void)
+{
+	omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD,
+			       CM_CLKSEL1);
+	omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD,
+			       CM_CLKSEL2);
+	__raw_writel(cm_context.cm_sysconfig, OMAP3430_CM_SYSCONFIG);
+	omap2_cm_write_mod_reg(cm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD,
+			       CM_CLKSEL);
+	omap2_cm_write_mod_reg(cm_context.dss_cm_clksel, OMAP3430_DSS_MOD,
+			       CM_CLKSEL);
+	omap2_cm_write_mod_reg(cm_context.cam_cm_clksel, OMAP3430_CAM_MOD,
+			       CM_CLKSEL);
+	omap2_cm_write_mod_reg(cm_context.per_cm_clksel, OMAP3430_PER_MOD,
+			       CM_CLKSEL);
+	omap2_cm_write_mod_reg(cm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
+			       CM_CLKSEL1);
+	omap2_cm_write_mod_reg(cm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	/*
+	 * As per erratum i671, ROM code does not respect the PER DPLL
+	 * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
+	 * In this case, we need to restore AUTO_PERIPH_DPLL by ourselves.
+	 */
+	omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle, PLL_MOD,
+			       CM_AUTOIDLE);
+	omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle2, PLL_MOD,
+			       CM_AUTOIDLE2);
+	omap2_cm_write_mod_reg(cm_context.pll_cm_clksel4, PLL_MOD,
+			       OMAP3430ES2_CM_CLKSEL4);
+	omap2_cm_write_mod_reg(cm_context.pll_cm_clksel5, PLL_MOD,
+			       OMAP3430ES2_CM_CLKSEL5);
+	omap2_cm_write_mod_reg(cm_context.pll_cm_clken2, PLL_MOD,
+			       OMAP3430ES2_CM_CLKEN2);
+	__raw_writel(cm_context.cm_polctrl, OMAP3430_CM_POLCTRL);
+	omap2_cm_write_mod_reg(cm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD,
+			       CM_FCLKEN);
+	omap2_cm_write_mod_reg(cm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD,
+			       OMAP3430_CM_CLKEN_PLL);
+	omap2_cm_write_mod_reg(cm_context.core_cm_fclken1, CORE_MOD,
+			       CM_FCLKEN1);
+	omap2_cm_write_mod_reg(cm_context.core_cm_fclken3, CORE_MOD,
+			       OMAP3430ES2_CM_FCLKEN3);
+	omap2_cm_write_mod_reg(cm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD,
+			       CM_FCLKEN);
+	omap2_cm_write_mod_reg(cm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN);
+	omap2_cm_write_mod_reg(cm_context.dss_cm_fclken, OMAP3430_DSS_MOD,
+			       CM_FCLKEN);
+	omap2_cm_write_mod_reg(cm_context.cam_cm_fclken, OMAP3430_CAM_MOD,
+			       CM_FCLKEN);
+	omap2_cm_write_mod_reg(cm_context.per_cm_fclken, OMAP3430_PER_MOD,
+			       CM_FCLKEN);
+	omap2_cm_write_mod_reg(cm_context.usbhost_cm_fclken,
+			       OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
+	omap2_cm_write_mod_reg(cm_context.core_cm_iclken1, CORE_MOD,
+			       CM_ICLKEN1);
+	omap2_cm_write_mod_reg(cm_context.core_cm_iclken2, CORE_MOD,
+			       CM_ICLKEN2);
+	omap2_cm_write_mod_reg(cm_context.core_cm_iclken3, CORE_MOD,
+			       CM_ICLKEN3);
+	omap2_cm_write_mod_reg(cm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD,
+			       CM_ICLKEN);
+	omap2_cm_write_mod_reg(cm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN);
+	omap2_cm_write_mod_reg(cm_context.dss_cm_iclken, OMAP3430_DSS_MOD,
+			       CM_ICLKEN);
+	omap2_cm_write_mod_reg(cm_context.cam_cm_iclken, OMAP3430_CAM_MOD,
+			       CM_ICLKEN);
+	omap2_cm_write_mod_reg(cm_context.per_cm_iclken, OMAP3430_PER_MOD,
+			       CM_ICLKEN);
+	omap2_cm_write_mod_reg(cm_context.usbhost_cm_iclken,
+			       OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
+	omap2_cm_write_mod_reg(cm_context.iva2_cm_autoidle2, OMAP3430_IVA2_MOD,
+			       CM_AUTOIDLE2);
+	omap2_cm_write_mod_reg(cm_context.mpu_cm_autoidle2, MPU_MOD,
+			       CM_AUTOIDLE2);
+	omap2_cm_write_mod_reg(cm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.mpu_cm_clkstctrl, MPU_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.core_cm_clkstctrl, CORE_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
+			       OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.usbhost_cm_clkstctrl,
+			       OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
+	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle1, CORE_MOD,
+			       CM_AUTOIDLE1);
+	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle2, CORE_MOD,
+			       CM_AUTOIDLE2);
+	omap2_cm_write_mod_reg(cm_context.core_cm_autoidle3, CORE_MOD,
+			       CM_AUTOIDLE3);
+	omap2_cm_write_mod_reg(cm_context.wkup_cm_autoidle, WKUP_MOD,
+			       CM_AUTOIDLE);
+	omap2_cm_write_mod_reg(cm_context.dss_cm_autoidle, OMAP3430_DSS_MOD,
+			       CM_AUTOIDLE);
+	omap2_cm_write_mod_reg(cm_context.cam_cm_autoidle, OMAP3430_CAM_MOD,
+			       CM_AUTOIDLE);
+	omap2_cm_write_mod_reg(cm_context.per_cm_autoidle, OMAP3430_PER_MOD,
+			       CM_AUTOIDLE);
+	omap2_cm_write_mod_reg(cm_context.usbhost_cm_autoidle,
+			       OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
+	omap2_cm_write_mod_reg(cm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD,
+			       OMAP3430_CM_SLEEPDEP);
+	omap2_cm_write_mod_reg(cm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD,
+			       OMAP3430_CM_SLEEPDEP);
+	omap2_cm_write_mod_reg(cm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD,
+			       OMAP3430_CM_SLEEPDEP);
+	omap2_cm_write_mod_reg(cm_context.per_cm_sleepdep, OMAP3430_PER_MOD,
+			       OMAP3430_CM_SLEEPDEP);
+	omap2_cm_write_mod_reg(cm_context.usbhost_cm_sleepdep,
+			       OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
+	omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD,
+			       OMAP3_CM_CLKOUT_CTRL_OFFSET);
+}
+
+/*
+ *
+ */
+
+static struct cm_ll_data omap3xxx_cm_ll_data = {
+	.split_idlest_reg	= &omap3xxx_cm_split_idlest_reg,
+	.wait_module_ready	= &omap3xxx_cm_wait_module_ready,
+};
+
+int __init omap3xxx_cm_init(void)
+{
+	if (!cpu_is_omap34xx())
+		return 0;
+
+	return cm_register(&omap3xxx_cm_ll_data);
+}
+
+static void __exit omap3xxx_cm_exit(void)
+{
+	if (!cpu_is_omap34xx())
+		return;
+
+	/* Should never happen */
+	WARN(cm_unregister(&omap3xxx_cm_ll_data),
+	     "%s: cm_ll_data function pointer mismatch\n", __func__);
+}
+__exitcall(omap3xxx_cm_exit);