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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 15:27:22 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 15:27:22 -0800
commitbab588fcfb6335c767d811a8955979f5440328e0 (patch)
tree2a862ddf47a82be885a8e7945a17cc3ff7a658b9 /arch/arm/mach-omap2/omap_device.c
parent3298a3511f1e73255a8dc023efd909e569eea037 (diff)
parent9cb0d1babfcb1b4ac248c09425f7d5de1e771133 (diff)
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
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SoC family, its SMP based cousin - tegra gains support for the new Tegra4 (Tegra114) family - socfpga now supports a newer version of the hardware including SMP - i.mx31 and bcm2835 are now using DT probing for their clocks - lots of updates for sh-mobile - OMAP updates for clocks, power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 ...
Diffstat (limited to 'arch/arm/mach-omap2/omap_device.c')
-rw-r--r--arch/arm/mach-omap2/omap_device.c537
1 files changed, 59 insertions, 478 deletions
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index d109f06785da..381be7ac0c17 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -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_activate(od, IGNORE_WAKEUP_LAT);
+ ret = _omap_device_enable_hwmods(od);
- 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)
{
@@ -962,7 +735,7 @@ 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;
@@ -970,42 +743,6 @@ int omap_device_idle(struct platform_device *pdev)
}
/**
- * 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
* @name: const char * name of the reset line
@@ -1061,86 +798,6 @@ int omap_device_deassert_hardreset(struct platform_device *pdev,
}
/**
- * 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.
* @oh_name: name of the hwmod device
@@ -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,