#include <linux/err.h>
#include <linux/list.h>
#include <linux/mutex.h>
-#include <linux/bootmem.h>
#include <plat/common.h>
#include <plat/cpu.h>
*/
static int _update_sysc_cache(struct omap_hwmod *oh)
{
- if (!oh->sysconfig) {
- WARN(!oh->sysconfig, "omap_hwmod: %s: cannot read "
- "OCP_SYSCONFIG: not defined on hwmod\n", oh->name);
+ if (!oh->class->sysc) {
+ WARN(1, "omap_hwmod: %s: cannot read OCP_SYSCONFIG: not defined on hwmod's class\n", oh->name);
return -EINVAL;
}
/* XXX ensure module interface clock is up */
- oh->_sysc_cache = omap_hwmod_readl(oh, oh->sysconfig->sysc_offs);
+ oh->_sysc_cache = omap_hwmod_readl(oh, oh->class->sysc->sysc_offs);
- oh->_int_flags |= _HWMOD_SYSCONFIG_LOADED;
+ if (!(oh->class->sysc->sysc_flags & SYSC_NO_CACHE))
+ oh->_int_flags |= _HWMOD_SYSCONFIG_LOADED;
return 0;
}
* @v: OCP_SYSCONFIG value to write
* @oh: struct omap_hwmod *
*
- * Write @v into the module OCP_SYSCONFIG register, if it has one. No
- * return value.
+ * Write @v into the module class' OCP_SYSCONFIG register, if it has
+ * one. No return value.
*/
static void _write_sysconfig(u32 v, struct omap_hwmod *oh)
{
- if (!oh->sysconfig) {
- WARN(!oh->sysconfig, "omap_hwmod: %s: cannot write "
- "OCP_SYSCONFIG: not defined on hwmod\n", oh->name);
+ if (!oh->class->sysc) {
+ WARN(1, "omap_hwmod: %s: cannot write OCP_SYSCONFIG: not defined on hwmod's class\n", oh->name);
return;
}
if (oh->_sysc_cache != v) {
oh->_sysc_cache = v;
- omap_hwmod_writel(v, oh, oh->sysconfig->sysc_offs);
+ omap_hwmod_writel(v, oh, oh->class->sysc->sysc_offs);
}
}
static int _set_master_standbymode(struct omap_hwmod *oh, u8 standbymode,
u32 *v)
{
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE))
+ u32 mstandby_mask;
+ u8 mstandby_shift;
+
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_MIDLEMODE))
+ return -EINVAL;
+
+ if (!oh->class->sysc->sysc_fields) {
+ WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
return -EINVAL;
+ }
- *v &= ~SYSC_MIDLEMODE_MASK;
- *v |= __ffs(standbymode) << SYSC_MIDLEMODE_SHIFT;
+ mstandby_shift = oh->class->sysc->sysc_fields->midle_shift;
+ mstandby_mask = (0x3 << mstandby_shift);
+
+ *v &= ~mstandby_mask;
+ *v |= __ffs(standbymode) << mstandby_shift;
return 0;
}
*/
static int _set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode, u32 *v)
{
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE))
+ u32 sidle_mask;
+ u8 sidle_shift;
+
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_SIDLEMODE))
return -EINVAL;
- *v &= ~SYSC_SIDLEMODE_MASK;
- *v |= __ffs(idlemode) << SYSC_SIDLEMODE_SHIFT;
+ if (!oh->class->sysc->sysc_fields) {
+ WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
+ return -EINVAL;
+ }
+
+ sidle_shift = oh->class->sysc->sysc_fields->sidle_shift;
+ sidle_mask = (0x3 << sidle_shift);
+
+ *v &= ~sidle_mask;
+ *v |= __ffs(idlemode) << sidle_shift;
return 0;
}
*/
static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v)
{
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
+ u32 clkact_mask;
+ u8 clkact_shift;
+
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
return -EINVAL;
- *v &= ~SYSC_CLOCKACTIVITY_MASK;
- *v |= clockact << SYSC_CLOCKACTIVITY_SHIFT;
+ if (!oh->class->sysc->sysc_fields) {
+ WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
+ return -EINVAL;
+ }
+
+ clkact_shift = oh->class->sysc->sysc_fields->clkact_shift;
+ clkact_mask = (0x3 << clkact_shift);
+
+ *v &= ~clkact_mask;
+ *v |= clockact << clkact_shift;
return 0;
}
*/
static int _set_softreset(struct omap_hwmod *oh, u32 *v)
{
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_SOFTRESET))
+ u32 softrst_mask;
+
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET))
+ return -EINVAL;
+
+ if (!oh->class->sysc->sysc_fields) {
+ WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
return -EINVAL;
+ }
- *v |= SYSC_SOFTRESET_MASK;
+ softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift);
+
+ *v |= softrst_mask;
return 0;
}
static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle,
u32 *v)
{
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_AUTOIDLE))
+ u32 autoidle_mask;
+ u8 autoidle_shift;
+
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_AUTOIDLE))
return -EINVAL;
- *v &= ~SYSC_AUTOIDLE_MASK;
- *v |= autoidle << SYSC_AUTOIDLE_SHIFT;
+ if (!oh->class->sysc->sysc_fields) {
+ WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
+ return -EINVAL;
+ }
+
+ autoidle_shift = oh->class->sysc->sysc_fields->autoidle_shift;
+ autoidle_mask = (0x3 << autoidle_shift);
+
+ *v &= ~autoidle_mask;
+ *v |= autoidle << autoidle_shift;
return 0;
}
*/
static int _enable_wakeup(struct omap_hwmod *oh)
{
- u32 v;
+ u32 v, wakeup_mask;
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
return -EINVAL;
+ if (!oh->class->sysc->sysc_fields) {
+ WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
+ return -EINVAL;
+ }
+
+ wakeup_mask = (0x1 << oh->class->sysc->sysc_fields->enwkup_shift);
+
v = oh->_sysc_cache;
- v |= SYSC_ENAWAKEUP_MASK;
+ v |= wakeup_mask;
_write_sysconfig(v, oh);
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
*/
static int _disable_wakeup(struct omap_hwmod *oh)
{
- u32 v;
+ u32 v, wakeup_mask;
+
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
+ return -EINVAL;
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+ if (!oh->class->sysc->sysc_fields) {
+ WARN(1, "omap_hwmod: %s: offset struct for sysconfig not provided in class\n", oh->name);
return -EINVAL;
+ }
+
+ wakeup_mask = (0x1 << oh->class->sysc->sysc_fields->enwkup_shift);
v = oh->_sysc_cache;
- v &= ~SYSC_ENAWAKEUP_MASK;
+ v &= ~wakeup_mask;
_write_sysconfig(v, oh);
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
* be accessed by the IVA, there should be a sleepdep between the IVA
* initiator and the module). Only applies to modules in smart-idle
* mode. Returns -EINVAL upon error or passes along
- * pwrdm_add_sleepdep() value upon success.
+ * clkdm_add_sleepdep() value upon success.
*/
static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
{
if (!oh->_clk)
return -EINVAL;
- return pwrdm_add_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
- init_oh->_clk->clkdm->pwrdm.ptr);
+ return clkdm_add_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
}
/**
* be accessed by the IVA, there should be no sleepdep between the IVA
* initiator and the module). Only applies to modules in smart-idle
* mode. Returns -EINVAL upon error or passes along
- * pwrdm_add_sleepdep() value upon success.
+ * clkdm_del_sleepdep() value upon success.
*/
static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
{
if (!oh->_clk)
return -EINVAL;
- return pwrdm_del_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
- init_oh->_clk->clkdm->pwrdm.ptr);
+ return clkdm_del_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
}
/**
struct clk *c;
int ret = 0;
- if (!oh->clkdev_con_id)
+ if (!oh->main_clk)
return 0;
- c = clk_get_sys(oh->clkdev_dev_id, oh->clkdev_con_id);
- WARN(IS_ERR(c), "omap_hwmod: %s: cannot clk_get main_clk %s.%s\n",
- oh->name, oh->clkdev_dev_id, oh->clkdev_con_id);
+ c = omap_clk_get_by_name(oh->main_clk);
+ WARN(IS_ERR(c), "omap_hwmod: %s: cannot clk_get main_clk %s\n",
+ oh->name, oh->main_clk);
if (IS_ERR(c))
ret = -EINVAL;
oh->_clk = c;
+ WARN(!c->clkdm, "omap_hwmod: %s: missing clockdomain for %s.\n",
+ oh->main_clk, c->name);
+
return ret;
}
return 0;
for (i = 0, os = *oh->slaves; i < oh->slaves_cnt; i++, os++) {
- if (!os->clkdev_con_id)
+ if (!os->clk)
continue;
- c = clk_get_sys(os->clkdev_dev_id, os->clkdev_con_id);
+ c = omap_clk_get_by_name(os->clk);
WARN(IS_ERR(c), "omap_hwmod: %s: cannot clk_get "
- "interface_clk %s.%s\n", oh->name,
- os->clkdev_dev_id, os->clkdev_con_id);
+ "interface_clk %s\n", oh->name, os->clk);
if (IS_ERR(c))
ret = -EINVAL;
os->_clk = c;
int ret = 0;
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) {
- c = clk_get_sys(oc->clkdev_dev_id, oc->clkdev_con_id);
+ c = omap_clk_get_by_name(oc->clk);
WARN(IS_ERR(c), "omap_hwmod: %s: cannot clk_get opt_clk "
- "%s.%s\n", oh->name, oc->clkdev_dev_id,
- oc->clkdev_con_id);
+ "%s\n", oh->name, oc->clk);
if (IS_ERR(c))
ret = -EINVAL;
oc->_clk = c;
*/
static void _sysc_enable(struct omap_hwmod *oh)
{
- u8 idlemode;
+ u8 idlemode, sf;
u32 v;
- if (!oh->sysconfig)
+ if (!oh->class->sysc)
return;
v = oh->_sysc_cache;
+ sf = oh->class->sysc->sysc_flags;
- if (oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE) {
+ if (sf & SYSC_HAS_SIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}
- if (oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE) {
+ if (sf & SYSC_HAS_MIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ?
HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
_set_master_standbymode(oh, idlemode, &v);
}
- if (oh->sysconfig->sysc_flags & SYSC_HAS_AUTOIDLE) {
+ if (sf & SYSC_HAS_AUTOIDLE) {
idlemode = (oh->flags & HWMOD_NO_OCP_AUTOIDLE) ?
0 : 1;
_set_module_autoidle(oh, idlemode, &v);
/* XXX OCP ENAWAKEUP bit? */
- if (oh->flags & HWMOD_SET_DEFAULT_CLOCKACT &&
- oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY)
- _set_clockactivity(oh, oh->sysconfig->clockact, &v);
+ /*
+ * XXX The clock framework should handle this, by
+ * calling into this code. But this must wait until the
+ * clock structures are tagged with omap_hwmod entries
+ */
+ if ((oh->flags & HWMOD_SET_DEFAULT_CLOCKACT) &&
+ (sf & SYSC_HAS_CLOCKACTIVITY))
+ _set_clockactivity(oh, oh->class->sysc->clockact, &v);
_write_sysconfig(v, oh);
}
*/
static void _sysc_idle(struct omap_hwmod *oh)
{
- u8 idlemode;
+ u8 idlemode, sf;
u32 v;
- if (!oh->sysconfig)
+ if (!oh->class->sysc)
return;
v = oh->_sysc_cache;
+ sf = oh->class->sysc->sysc_flags;
- if (oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE) {
+ if (sf & SYSC_HAS_SIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}
- if (oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE) {
+ if (sf & SYSC_HAS_MIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ?
HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
_set_master_standbymode(oh, idlemode, &v);
static void _sysc_shutdown(struct omap_hwmod *oh)
{
u32 v;
+ u8 sf;
- if (!oh->sysconfig)
+ if (!oh->class->sysc)
return;
v = oh->_sysc_cache;
+ sf = oh->class->sysc->sysc_flags;
- if (oh->sysconfig->sysc_flags & SYSC_HAS_SIDLEMODE)
+ if (sf & SYSC_HAS_SIDLEMODE)
_set_slave_idlemode(oh, HWMOD_IDLEMODE_FORCE, &v);
- if (oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE)
+ if (sf & SYSC_HAS_MIDLEMODE)
_set_master_standbymode(oh, HWMOD_IDLEMODE_FORCE, &v);
- if (oh->sysconfig->sysc_flags & SYSC_HAS_AUTOIDLE)
+ if (sf & SYSC_HAS_AUTOIDLE)
_set_module_autoidle(oh, 1, &v);
_write_sysconfig(v, oh);
u32 r, v;
int c = 0;
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_SOFTRESET) ||
- (oh->sysconfig->sysc_flags & SYSS_MISSING))
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET) ||
+ (oh->class->sysc->sysc_flags & SYSS_MISSING))
return -EINVAL;
/* clocks must be on for this operation */
return r;
_write_sysconfig(v, oh);
- omap_test_timeout((omap_hwmod_readl(oh, oh->sysconfig->syss_offs) &
+ omap_test_timeout((omap_hwmod_readl(oh, oh->class->sysc->syss_offs) &
SYSS_RESETDONE_MASK),
MAX_MODULE_RESET_WAIT, c);
_add_initiator_dep(oh, mpu_oh);
_enable_clocks(oh);
- if (oh->sysconfig) {
+ if (oh->class->sysc) {
if (!(oh->_int_flags & _HWMOD_SYSCONFIG_LOADED))
_update_sysc_cache(oh);
_sysc_enable(oh);
pr_debug("omap_hwmod: %s: idling\n", oh->name);
- if (oh->sysconfig)
+ if (oh->class->sysc)
_sysc_idle(oh);
_del_initiator_dep(oh, mpu_oh);
_disable_clocks(oh);
pr_debug("omap_hwmod: %s: disabling\n", oh->name);
- if (oh->sysconfig)
+ if (oh->class->sysc)
_sysc_shutdown(oh);
_del_initiator_dep(oh, mpu_oh);
/* XXX what about the other system initiators here? DMA, tesla, d2d */
}
/**
- * _write_clockact_lock - set the module's clockactivity bits
- * @oh: struct omap_hwmod *
- * @clockact: CLOCKACTIVITY field bits
- *
- * Writes the CLOCKACTIVITY bits @clockact to the hwmod @oh
- * OCP_SYSCONFIG register. Returns -EINVAL if the hwmod is in the
- * wrong state or returns 0.
- */
-static int _write_clockact_lock(struct omap_hwmod *oh, u8 clockact)
-{
- u32 v;
-
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
- return -EINVAL;
-
- mutex_lock(&omap_hwmod_mutex);
- v = oh->_sysc_cache;
- _set_clockactivity(oh, clockact, &v);
- _write_sysconfig(v, oh);
- mutex_unlock(&omap_hwmod_mutex);
-
- return 0;
-}
-
-
-/**
* _setup - do initial configuration of omap_hwmod
* @oh: struct omap_hwmod *
*
* _enable() function should be split to avoid the
* rewrite of the OCP_SYSCONFIG register.
*/
- if (oh->sysconfig) {
+ if (oh->class->sysc) {
_update_sysc_cache(oh);
_sysc_enable(oh);
}
__raw_writel(v, oh->_rt_va + reg_offs);
}
+int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode)
+{
+ u32 v;
+ int retval = 0;
+
+ if (!oh)
+ return -EINVAL;
+
+ v = oh->_sysc_cache;
+
+ retval = _set_slave_idlemode(oh, idlemode, &v);
+ if (!retval)
+ _write_sysconfig(v, oh);
+
+ return retval;
+}
+
/**
* omap_hwmod_register - register a struct omap_hwmod
* @oh: struct omap_hwmod *
*
- * Registers the omap_hwmod @oh. Returns -EEXIST if an omap_hwmod already
- * has been registered by the same name; -EINVAL if the omap_hwmod is in the
- * wrong state, or 0 on success.
+ * Registers the omap_hwmod @oh. Returns -EEXIST if an omap_hwmod
+ * already has been registered by the same name; -EINVAL if the
+ * omap_hwmod is in the wrong state, if @oh is NULL, if the
+ * omap_hwmod's class field is NULL; if the omap_hwmod is missing a
+ * name, or if the omap_hwmod's class is missing a name; or 0 upon
+ * success.
*
* XXX The data should be copied into bootmem, so the original data
* should be marked __initdata and freed after init. This would allow
{
int ret, ms_id;
- if (!oh || (oh->_state != _HWMOD_STATE_UNKNOWN))
+ if (!oh || !oh->name || !oh->class || !oh->class->name ||
+ (oh->_state != _HWMOD_STATE_UNKNOWN))
return -EINVAL;
mutex_lock(&omap_hwmod_mutex);
{
BUG_ON(!oh);
- if (!oh->sysconfig || !oh->sysconfig->sysc_flags) {
+ if (!oh->class->sysc || !oh->class->sysc->sysc_flags) {
WARN(1, "omap_device: %s: OCP barrier impossible due to "
"device configuration\n", oh->name);
return;
* Forces posted writes to complete on the OCP thread handling
* register writes
*/
- omap_hwmod_readl(oh, oh->sysconfig->sysc_offs);
+ omap_hwmod_readl(oh, oh->class->sysc->sysc_offs);
}
/**
/* For each IRQ, DMA, memory area, fill in array.*/
for (i = 0; i < oh->mpu_irqs_cnt; i++) {
- (res + r)->start = *(oh->mpu_irqs + i);
- (res + r)->end = *(oh->mpu_irqs + i);
+ (res + r)->name = (oh->mpu_irqs + i)->name;
+ (res + r)->start = (oh->mpu_irqs + i)->irq;
+ (res + r)->end = (oh->mpu_irqs + i)->irq;
(res + r)->flags = IORESOURCE_IRQ;
r++;
}
}
/**
- * omap_hwmod_set_clockact_none - set clockactivity test to BOTH
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_both(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_BOTH);
-}
-
-/**
- * omap_hwmod_set_clockact_none - set clockactivity test to MAIN
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_main(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_MAIN);
-}
-
-/**
- * omap_hwmod_set_clockact_none - set clockactivity test to ICLK
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_iclk(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_ICLK);
-}
-
-/**
- * omap_hwmod_set_clockact_none - set clockactivity test to NONE
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_none(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_NONE);
-}
-
-/**
* omap_hwmod_enable_wakeup - allow device to wake up the system
* @oh: struct omap_hwmod *
*
*/
int omap_hwmod_enable_wakeup(struct omap_hwmod *oh)
{
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
return -EINVAL;
mutex_lock(&omap_hwmod_mutex);
*/
int omap_hwmod_disable_wakeup(struct omap_hwmod *oh)
{
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_ENAWAKEUP))
+ if (!oh->class->sysc ||
+ !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
return -EINVAL;
mutex_lock(&omap_hwmod_mutex);
return 0;
}
+
+/**
+ * omap_hwmod_for_each_by_class - call @fn for each hwmod of class @classname
+ * @classname: struct omap_hwmod_class name to search for
+ * @fn: callback function pointer to call for each hwmod in class @classname
+ * @user: arbitrary context data to pass to the callback function
+ *
+ * For each omap_hwmod of class @classname, call @fn. Takes
+ * omap_hwmod_mutex to prevent the hwmod list from changing during the
+ * iteration. If the callback function returns something other than
+ * zero, the iterator is terminated, and the callback function's return
+ * value is passed back to the caller. Returns 0 upon success, -EINVAL
+ * if @classname or @fn are NULL, or passes back the error code from @fn.
+ */
+int omap_hwmod_for_each_by_class(const char *classname,
+ int (*fn)(struct omap_hwmod *oh,
+ void *user),
+ void *user)
+{
+ struct omap_hwmod *temp_oh;
+ int ret = 0;
+
+ if (!classname || !fn)
+ return -EINVAL;
+
+ pr_debug("omap_hwmod: %s: looking for modules of class %s\n",
+ __func__, classname);
+
+ mutex_lock(&omap_hwmod_mutex);
+
+ list_for_each_entry(temp_oh, &omap_hwmod_list, node) {
+ if (!strcmp(temp_oh->class->name, classname)) {
+ pr_debug("omap_hwmod: %s: %s: calling callback fn\n",
+ __func__, temp_oh->name);
+ ret = (*fn)(temp_oh, user);
+ if (ret)
+ break;
+ }
+ }
+
+ mutex_unlock(&omap_hwmod_mutex);
+
+ if (ret)
+ pr_debug("omap_hwmod: %s: iterator terminated early: %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff