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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Browse Source 
Pull ARM SoC-specific updates from Arnd Bergmann:
 "This is a larger set of new functionality for the existing SoC
  families, including:

   - vt8500 gains support for new CPU cores, notably the Cortex-A9 based
     wm8850

   - prima2 gains support for the "marco" SoC family, its SMP based
     cousin

   - tegra gains support for the new Tegra4 (Tegra114) family

   - socfpga now supports a newer version of the hardware including SMP

   - i.mx31 and bcm2835 are now using DT probing for their clocks

   - lots of updates for sh-mobile

   - OMAP updates for clocks, power management and USB

   - i.mx6q and tegra now support cpuidle

   - kirkwood now supports PCIe hot plugging

   - tegra clock support is updated

   - tegra USB PHY probing gets implemented diffently"

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits)
  ARM: prima2: remove duplicate v7_invalidate_l1
  ARM: shmobile: r8a7779: Correct TMU clock support again
  ARM: prima2: fix __init section for cpu hotplug
  ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3)
  ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3)
  arm: socfpga: Add SMP support for actual socfpga harware
  arm: Add v7_invalidate_l1 to cache-v7.S
  arm: socfpga: Add entries to enable make dtbs socfpga
  arm: socfpga: Add new device tree source for actual socfpga HW
  ARM: tegra: sort Kconfig selects for Tegra114
  ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114
  ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC
  ARM: tegra: Fix build error for gic update
  ARM: tegra: remove empty tegra_smp_init_cpus()
  ARM: shmobile: Register ARM architected timer
  ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
  ARM: shmobile: r8a7779: Correct TMU clock support
  ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT
  ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles
  ARM: mxs: use apbx bus clock to drive the timers on timrotv2
  ...
This commit is contained in:
Linus Torvalds
2013-02-21 15:27:22 -08:00
parent 3298a3511f 9cb0d1babf
commit bab588fcfb
255 changed files with 11530 additions and 9701 deletions
Download Patch File Download Diff File Expand all files Collapse all files

537
arch/arm/mach-omap2/omap_device.c
View File

@@ -17,68 +17,15 @@
* to control power management and interconnect properties of their
* devices.
*
* In the medium- to long-term, this code should either be
* a) implemented via arch-specific pointers in platform_data
* or
* b) implemented as a proper omap_bus/omap_device in Linux, no more
* platform_data func pointers
* In the medium- to long-term, this code should be implemented as a
* proper omap_bus/omap_device in Linux, no more platform_data func
* pointers
*
*
* Guidelines for usage by driver authors:
*
* 1. These functions are intended to be used by device drivers via
* function pointers in struct platform_data. As an example,
* omap_device_enable() should be passed to the driver as
*
* struct foo_driver_platform_data {
* ...
* int (*device_enable)(struct platform_device *pdev);
* ...
* }
*
* Note that the generic "device_enable" name is used, rather than
* "omap_device_enable". This is so other architectures can pass in their
* own enable/disable functions here.
*
* This should be populated during device setup:
*
* ...
* pdata->device_enable = omap_device_enable;
* ...
*
* 2. Drivers should first check to ensure the function pointer is not null
* before calling it, as in:
*
* if (pdata->device_enable)
* pdata->device_enable(pdev);
*
* This allows other architectures that don't use similar device_enable()/
* device_shutdown() functions to execute normally.
*
* ...
*
* Suggested usage by device drivers:
*
* During device initialization:
* device_enable()
*
* During device idle:
* (save remaining device context if necessary)
* device_idle();
*
* During device resume:
* device_enable();
* (restore context if necessary)
*
* During device shutdown:
* device_shutdown()
* (device must be reinitialized at this point to use it again)
*
*/
#undef DEBUG
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/err.h>
@@ -93,155 +40,8 @@
#include "omap_device.h"
#include "omap_hwmod.h"
/* These parameters are passed to _omap_device_{de,}activate() */
#define USE_WAKEUP_LAT 0
#define IGNORE_WAKEUP_LAT 1
static int omap_early_device_register(struct platform_device *pdev);
static struct omap_device_pm_latency omap_default_latency[] = {
{
.deactivate_func = omap_device_idle_hwmods,
.activate_func = omap_device_enable_hwmods,
.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
}
};
/* Private functions */
/**
* _omap_device_activate - increase device readiness
* @od: struct omap_device *
* @ignore_lat: increase to latency target (0) or full readiness (1)?
*
* Increase readiness of omap_device @od (thus decreasing device
* wakeup latency, but consuming more power). If @ignore_lat is
* IGNORE_WAKEUP_LAT, make the omap_device fully active. Otherwise,
* if @ignore_lat is USE_WAKEUP_LAT, and the device's maximum wakeup
* latency is greater than the requested maximum wakeup latency, step
* backwards in the omap_device_pm_latency table to ensure the
* device's maximum wakeup latency is less than or equal to the
* requested maximum wakeup latency. Returns 0.
*/
static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
{
struct timespec a, b, c;
dev_dbg(&od->pdev->dev, "omap_device: activating\n");
while (od->pm_lat_level > 0) {
struct omap_device_pm_latency *odpl;
unsigned long long act_lat = 0;
od->pm_lat_level--;
odpl = od->pm_lats + od->pm_lat_level;
if (!ignore_lat &&
(od->dev_wakeup_lat <= od->_dev_wakeup_lat_limit))
break;
read_persistent_clock(&a);
/* XXX check return code */
odpl->activate_func(od);
read_persistent_clock(&b);
c = timespec_sub(b, a);
act_lat = timespec_to_ns(&c);
dev_dbg(&od->pdev->dev,
"omap_device: pm_lat %d: activate: elapsed time %llu nsec\n",
od->pm_lat_level, act_lat);
if (act_lat > odpl->activate_lat) {
odpl->activate_lat_worst = act_lat;
if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
odpl->activate_lat = act_lat;
dev_dbg(&od->pdev->dev,
"new worst case activate latency %d: %llu\n",
od->pm_lat_level, act_lat);
} else
dev_warn(&od->pdev->dev,
"activate latency %d higher than expected. (%llu > %d)\n",
od->pm_lat_level, act_lat,
odpl->activate_lat);
}
od->dev_wakeup_lat -= odpl->activate_lat;
}
return 0;
}
/**
* _omap_device_deactivate - decrease device readiness
* @od: struct omap_device *
* @ignore_lat: decrease to latency target (0) or full inactivity (1)?
*
* Decrease readiness of omap_device @od (thus increasing device
* wakeup latency, but conserving power). If @ignore_lat is
* IGNORE_WAKEUP_LAT, make the omap_device fully inactive. Otherwise,
* if @ignore_lat is USE_WAKEUP_LAT, and the device's maximum wakeup
* latency is less than the requested maximum wakeup latency, step
* forwards in the omap_device_pm_latency table to ensure the device's
* maximum wakeup latency is less than or equal to the requested
* maximum wakeup latency. Returns 0.
*/
static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
{
struct timespec a, b, c;
dev_dbg(&od->pdev->dev, "omap_device: deactivating\n");
while (od->pm_lat_level < od->pm_lats_cnt) {
struct omap_device_pm_latency *odpl;
unsigned long long deact_lat = 0;
odpl = od->pm_lats + od->pm_lat_level;
if (!ignore_lat &&
((od->dev_wakeup_lat + odpl->activate_lat) >
od->_dev_wakeup_lat_limit))
break;
read_persistent_clock(&a);
/* XXX check return code */
odpl->deactivate_func(od);
read_persistent_clock(&b);
c = timespec_sub(b, a);
deact_lat = timespec_to_ns(&c);
dev_dbg(&od->pdev->dev,
"omap_device: pm_lat %d: deactivate: elapsed time %llu nsec\n",
od->pm_lat_level, deact_lat);
if (deact_lat > odpl->deactivate_lat) {
odpl->deactivate_lat_worst = deact_lat;
if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
odpl->deactivate_lat = deact_lat;
dev_dbg(&od->pdev->dev,
"new worst case deactivate latency %d: %llu\n",
od->pm_lat_level, deact_lat);
} else
dev_warn(&od->pdev->dev,
"deactivate latency %d higher than expected. (%llu > %d)\n",
od->pm_lat_level, deact_lat,
odpl->deactivate_lat);
}
od->dev_wakeup_lat += odpl->activate_lat;
od->pm_lat_level++;
}
return 0;
}
static void _add_clkdev(struct omap_device *od, const char *clk_alias,
const char *clk_name)
{
@@ -316,9 +116,6 @@ static void _add_hwmod_clocks_clkdev(struct omap_device *od,
* @oh: ptr to the single omap_hwmod that backs this omap_device
* @pdata: platform_data ptr to associate with the platform_device
* @pdata_len: amount of memory pointed to by @pdata
* @pm_lats: pointer to a omap_device_pm_latency array for this device
* @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
* @is_early_device: should the device be registered as an early device or not
*
* Function for building an omap_device already registered from device-tree
*
@@ -357,7 +154,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
hwmods[i] = oh;
}
od = omap_device_alloc(pdev, hwmods, oh_cnt, NULL, 0);
od = omap_device_alloc(pdev, hwmods, oh_cnt);
if (!od) {
dev_err(&pdev->dev, "Cannot allocate omap_device for :%s\n",
oh_name);
@@ -408,6 +205,39 @@ static int _omap_device_notifier_call(struct notifier_block *nb,
return NOTIFY_DONE;
}
/**
* _omap_device_enable_hwmods - call omap_hwmod_enable() on all hwmods
* @od: struct omap_device *od
*
* Enable all underlying hwmods. Returns 0.
*/
static int _omap_device_enable_hwmods(struct omap_device *od)
{
int i;
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_enable(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
}
/**
* _omap_device_idle_hwmods - call omap_hwmod_idle() on all hwmods
* @od: struct omap_device *od
*
* Idle all underlying hwmods. Returns 0.
*/
static int _omap_device_idle_hwmods(struct omap_device *od)
{
int i;
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_idle(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
}
/* Public functions for use by core code */
@@ -527,18 +357,14 @@ static int _od_fill_dma_resources(struct omap_device *od,
* @oh: ptr to the single omap_hwmod that backs this omap_device
* @pdata: platform_data ptr to associate with the platform_device
* @pdata_len: amount of memory pointed to by @pdata
* @pm_lats: pointer to a omap_device_pm_latency array for this device
* @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
*
* Convenience function for allocating an omap_device structure and filling
* hwmods, resources and pm_latency attributes.
* hwmods, and resources.
*
* Returns an struct omap_device pointer or ERR_PTR() on error;
*/
struct omap_device *omap_device_alloc(struct platform_device *pdev,
struct omap_hwmod **ohs, int oh_cnt,
struct omap_device_pm_latency *pm_lats,
int pm_lats_cnt)
struct omap_hwmod **ohs, int oh_cnt)
{
int ret = -ENOMEM;
struct omap_device *od;
@@ -627,18 +453,6 @@ struct omap_device *omap_device_alloc(struct platform_device *pdev,
goto oda_exit3;
have_everything:
if (!pm_lats) {
pm_lats = omap_default_latency;
pm_lats_cnt = ARRAY_SIZE(omap_default_latency);
}
od->pm_lats_cnt = pm_lats_cnt;
od->pm_lats = kmemdup(pm_lats,
sizeof(struct omap_device_pm_latency) * pm_lats_cnt,
GFP_KERNEL);
if (!od->pm_lats)
goto oda_exit3;
pdev->archdata.od = od;
for (i = 0; i < oh_cnt; i++) {
@@ -664,7 +478,6 @@ void omap_device_delete(struct omap_device *od)
return;
od->pdev->archdata.od = NULL;
kfree(od->pm_lats);
kfree(od->hwmods);
kfree(od);
}
@@ -676,9 +489,6 @@ void omap_device_delete(struct omap_device *od)
* @oh: ptr to the single omap_hwmod that backs this omap_device
* @pdata: platform_data ptr to associate with the platform_device
* @pdata_len: amount of memory pointed to by @pdata
* @pm_lats: pointer to a omap_device_pm_latency array for this device
* @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
* @is_early_device: should the device be registered as an early device or not
*
* Convenience function for building and registering a single
* omap_device record, which in turn builds and registers a
@@ -686,11 +496,10 @@ void omap_device_delete(struct omap_device *od)
* information. Returns ERR_PTR(-EINVAL) if @oh is NULL; otherwise,
* passes along the return value of omap_device_build_ss().
*/
struct platform_device __init *omap_device_build(const char *pdev_name, int pdev_id,
struct omap_hwmod *oh, void *pdata,
int pdata_len,
struct omap_device_pm_latency *pm_lats,
int pm_lats_cnt, int is_early_device)
struct platform_device __init *omap_device_build(const char *pdev_name,
int pdev_id,
struct omap_hwmod *oh,
void *pdata, int pdata_len)
{
struct omap_hwmod *ohs[] = { oh };
@@ -698,8 +507,7 @@ struct platform_device __init *omap_device_build(const char *pdev_name, int pdev
return ERR_PTR(-EINVAL);
return omap_device_build_ss(pdev_name, pdev_id, ohs, 1, pdata,
pdata_len, pm_lats, pm_lats_cnt,
is_early_device);
pdata_len);
}
/**
@@ -709,9 +517,6 @@ struct platform_device __init *omap_device_build(const char *pdev_name, int pdev
* @oh: ptr to the single omap_hwmod that backs this omap_device
* @pdata: platform_data ptr to associate with the platform_device
* @pdata_len: amount of memory pointed to by @pdata
* @pm_lats: pointer to a omap_device_pm_latency array for this device
* @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
* @is_early_device: should the device be registered as an early device or not
*
* Convenience function for building and registering an omap_device
* subsystem record. Subsystem records consist of multiple
@@ -719,11 +524,11 @@ struct platform_device __init *omap_device_build(const char *pdev_name, int pdev
* platform_device record. Returns an ERR_PTR() on error, or passes
* along the return value of omap_device_register().
*/
struct platform_device __init *omap_device_build_ss(const char *pdev_name, int pdev_id,
struct omap_hwmod **ohs, int oh_cnt,
void *pdata, int pdata_len,
struct omap_device_pm_latency *pm_lats,
int pm_lats_cnt, int is_early_device)
struct platform_device __init *omap_device_build_ss(const char *pdev_name,
int pdev_id,
struct omap_hwmod **ohs,
int oh_cnt, void *pdata,
int pdata_len)
{
int ret = -ENOMEM;
struct platform_device *pdev;
@@ -747,7 +552,7 @@ struct platform_device __init *omap_device_build_ss(const char *pdev_name, int p
else
dev_set_name(&pdev->dev, "%s", pdev->name);
od = omap_device_alloc(pdev, ohs, oh_cnt, pm_lats, pm_lats_cnt);
od = omap_device_alloc(pdev, ohs, oh_cnt);
if (IS_ERR(od))
goto odbs_exit1;
@@ -755,10 +560,7 @@ struct platform_device __init *omap_device_build_ss(const char *pdev_name, int p
if (ret)
goto odbs_exit2;
if (is_early_device)
ret = omap_early_device_register(pdev);
else
ret = omap_device_register(pdev);
ret = omap_device_register(pdev);
if (ret)
goto odbs_exit2;
@@ -775,24 +577,6 @@ odbs_exit:
return ERR_PTR(ret);
}
/**
* omap_early_device_register - register an omap_device as an early platform
* device.
* @od: struct omap_device * to register
*
* Register the omap_device structure. This currently just calls
* platform_early_add_device() on the underlying platform_device.
* Returns 0 by default.
*/
static int __init omap_early_device_register(struct platform_device *pdev)
{
struct platform_device *devices[1];
devices[0] = pdev;
early_platform_add_devices(devices, 1);
return 0;
}
#ifdef CONFIG_PM_RUNTIME
static int _od_runtime_suspend(struct device *dev)
{
@@ -903,10 +687,9 @@ int omap_device_register(struct platform_device *pdev)
* to be accessible and ready to operate. This generally involves
* enabling clocks, setting SYSCONFIG registers; and in the future may
* involve remuxing pins. Device drivers should call this function
* (through platform_data function pointers) where they would normally
* enable clocks, etc. Returns -EINVAL if called when the omap_device
* is already enabled, or passes along the return value of
* _omap_device_activate().
* indirectly via pm_runtime_get*(). Returns -EINVAL if called when
* the omap_device is already enabled, or passes along the return
* value of _omap_device_enable_hwmods().
*/
int omap_device_enable(struct platform_device *pdev)
{
@@ -922,14 +705,8 @@ int omap_device_enable(struct platform_device *pdev)
return -EINVAL;
}
/* Enable everything if we're enabling this device from scratch */
if (od->_state == OMAP_DEVICE_STATE_UNKNOWN)
od->pm_lat_level = od->pm_lats_cnt;
ret = _omap_device_enable_hwmods(od);
ret = _omap_device_activate(od, IGNORE_WAKEUP_LAT);
od->dev_wakeup_lat = 0;
od->_dev_wakeup_lat_limit = UINT_MAX;
od->_state = OMAP_DEVICE_STATE_ENABLED;
return ret;
@@ -939,14 +716,10 @@ int omap_device_enable(struct platform_device *pdev)
* omap_device_idle - idle an omap_device
* @od: struct omap_device * to idle
*
* Idle omap_device @od by calling as many .deactivate_func() entries
* in the omap_device's pm_lats table as is possible without exceeding
* the device's maximum wakeup latency limit, pm_lat_limit. Device
* drivers should call this function (through platform_data function
* pointers) where they would normally disable clocks after operations
* complete, etc.. Returns -EINVAL if the omap_device is not
* Idle omap_device @od. Device drivers call this function indirectly
* via pm_runtime_put*(). Returns -EINVAL if the omap_device is not
* currently enabled, or passes along the return value of
* _omap_device_deactivate().
* _omap_device_idle_hwmods().
*/
int omap_device_idle(struct platform_device *pdev)
{
@@ -962,49 +735,13 @@ int omap_device_idle(struct platform_device *pdev)
return -EINVAL;
}
ret = _omap_device_deactivate(od, USE_WAKEUP_LAT);
ret = _omap_device_idle_hwmods(od);
od->_state = OMAP_DEVICE_STATE_IDLE;
return ret;
}
/**
* omap_device_shutdown - shut down an omap_device
* @od: struct omap_device * to shut down
*
* Shut down omap_device @od by calling all .deactivate_func() entries
* in the omap_device's pm_lats table and then shutting down all of
* the underlying omap_hwmods. Used when a device is being "removed"
* or a device driver is being unloaded. Returns -EINVAL if the
* omap_device is not currently enabled or idle, or passes along the
* return value of _omap_device_deactivate().
*/
int omap_device_shutdown(struct platform_device *pdev)
{
int ret, i;
struct omap_device *od;
od = to_omap_device(pdev);
if (od->_state != OMAP_DEVICE_STATE_ENABLED &&
od->_state != OMAP_DEVICE_STATE_IDLE) {
dev_warn(&pdev->dev,
"omap_device: %s() called from invalid state %d\n",
__func__, od->_state);
return -EINVAL;
}
ret = _omap_device_deactivate(od, IGNORE_WAKEUP_LAT);
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_shutdown(od->hwmods[i]);
od->_state = OMAP_DEVICE_STATE_SHUTDOWN;
return ret;
}
/**
* omap_device_assert_hardreset - set a device's hardreset line
* @pdev: struct platform_device * to reset
@@ -1060,86 +797,6 @@ int omap_device_deassert_hardreset(struct platform_device *pdev,
return ret;
}
/**
* omap_device_align_pm_lat - activate/deactivate device to match wakeup lat lim
* @od: struct omap_device *
*
* When a device's maximum wakeup latency limit changes, call some of
* the .activate_func or .deactivate_func function pointers in the
* omap_device's pm_lats array to ensure that the device's maximum
* wakeup latency is less than or equal to the new latency limit.
* Intended to be called by OMAP PM code whenever a device's maximum
* wakeup latency limit changes (e.g., via
* omap_pm_set_dev_wakeup_lat()). Returns 0 if nothing needs to be
* done (e.g., if the omap_device is not currently idle, or if the
* wakeup latency is already current with the new limit) or passes
* along the return value of _omap_device_deactivate() or
* _omap_device_activate().
*/
int omap_device_align_pm_lat(struct platform_device *pdev,
u32 new_wakeup_lat_limit)
{
int ret = -EINVAL;
struct omap_device *od;
od = to_omap_device(pdev);
if (new_wakeup_lat_limit == od->dev_wakeup_lat)
return 0;
od->_dev_wakeup_lat_limit = new_wakeup_lat_limit;
if (od->_state != OMAP_DEVICE_STATE_IDLE)
return 0;
else if (new_wakeup_lat_limit > od->dev_wakeup_lat)
ret = _omap_device_deactivate(od, USE_WAKEUP_LAT);
else if (new_wakeup_lat_limit < od->dev_wakeup_lat)
ret = _omap_device_activate(od, USE_WAKEUP_LAT);
return ret;
}
/**
* omap_device_get_pwrdm - return the powerdomain * associated with @od
* @od: struct omap_device *
*
* Return the powerdomain associated with the first underlying
* omap_hwmod for this omap_device. Intended for use by core OMAP PM
* code. Returns NULL on error or a struct powerdomain * upon
* success.
*/
struct powerdomain *omap_device_get_pwrdm(struct omap_device *od)
{
/*
* XXX Assumes that all omap_hwmod powerdomains are identical.
* This may not necessarily be true. There should be a sanity
* check in here to WARN() if any difference appears.
*/
if (!od->hwmods_cnt)
return NULL;
return omap_hwmod_get_pwrdm(od->hwmods[0]);
}
/**
* omap_device_get_mpu_rt_va - return the MPU's virtual addr for the hwmod base
* @od: struct omap_device *
*
* Return the MPU's virtual address for the base of the hwmod, from
* the ioremap() that the hwmod code does. Only valid if there is one
* hwmod associated with this device. Returns NULL if there are zero
* or more than one hwmods associated with this omap_device;
* otherwise, passes along the return value from
* omap_hwmod_get_mpu_rt_va().
*/
void __iomem *omap_device_get_rt_va(struct omap_device *od)
{
if (od->hwmods_cnt != 1)
return NULL;
return omap_hwmod_get_mpu_rt_va(od->hwmods[0]);
}
/**
* omap_device_get_by_hwmod_name() - convert a hwmod name to
* device pointer.
@@ -1174,82 +831,6 @@ struct device *omap_device_get_by_hwmod_name(const char *oh_name)
return &oh->od->pdev->dev;
}
EXPORT_SYMBOL(omap_device_get_by_hwmod_name);
/*
* Public functions intended for use in omap_device_pm_latency
* .activate_func and .deactivate_func function pointers
*/
/**
* omap_device_enable_hwmods - call omap_hwmod_enable() on all hwmods
* @od: struct omap_device *od
*
* Enable all underlying hwmods. Returns 0.
*/
int omap_device_enable_hwmods(struct omap_device *od)
{
int i;
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_enable(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
}
/**
* omap_device_idle_hwmods - call omap_hwmod_idle() on all hwmods
* @od: struct omap_device *od
*
* Idle all underlying hwmods. Returns 0.
*/
int omap_device_idle_hwmods(struct omap_device *od)
{
int i;
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_idle(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
}
/**
* omap_device_disable_clocks - disable all main and interface clocks
* @od: struct omap_device *od
*
* Disable the main functional clock and interface clock for all of the
* omap_hwmods associated with the omap_device. Returns 0.
*/
int omap_device_disable_clocks(struct omap_device *od)
{
int i;
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_disable_clocks(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
}
/**
* omap_device_enable_clocks - enable all main and interface clocks
* @od: struct omap_device *od
*
* Enable the main functional clock and interface clock for all of the
* omap_hwmods associated with the omap_device. Returns 0.
*/
int omap_device_enable_clocks(struct omap_device *od)
{
int i;
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_enable_clocks(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
}
static struct notifier_block platform_nb = {
.notifier_call = _omap_device_notifier_call,