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Diffstat (limited to 'arch/arm/mach-omap2/opp.c')
-rw-r--r--arch/arm/mach-omap2/opp.c49
1 files changed, 30 insertions, 19 deletions
diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c
index de6d4645174..a358a07e18f 100644
--- a/arch/arm/mach-omap2/opp.c
+++ b/arch/arm/mach-omap2/opp.c
@@ -17,9 +17,11 @@
* GNU General Public License for more details.
*/
#include <linux/module.h>
-#include <linux/opp.h>
+#include <linux/of.h>
+#include <linux/pm_opp.h>
+#include <linux/cpu.h>
-#include <plat/omap_device.h>
+#include "omap_device.h"
#include "omap_opp_data.h"
@@ -39,6 +41,9 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
{
int i, r;
+ if (of_have_populated_dt())
+ return -EINVAL;
+
if (!opp_def || !opp_def_size) {
pr_err("%s: invalid params!\n", __func__);
return -EINVAL;
@@ -53,7 +58,7 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
omap_table_init = 1;
/* Lets now register with OPP library */
- for (i = 0; i < opp_def_size; i++) {
+ for (i = 0; i < opp_def_size; i++, opp_def++) {
struct omap_hwmod *oh;
struct device *dev;
@@ -62,31 +67,37 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
__func__, i);
return -EINVAL;
}
- oh = omap_hwmod_lookup(opp_def->hwmod_name);
- if (!oh || !oh->od) {
- pr_debug("%s: no hwmod or odev for %s, [%d] "
- "cannot add OPPs.\n", __func__,
- opp_def->hwmod_name, i);
- continue;
+
+ if (!strncmp(opp_def->hwmod_name, "mpu", 3)) {
+ /*
+ * All current OMAPs share voltage rail and
+ * clock source, so CPU0 is used to represent
+ * the MPU-SS.
+ */
+ dev = get_cpu_device(0);
+ } else {
+ oh = omap_hwmod_lookup(opp_def->hwmod_name);
+ if (!oh || !oh->od) {
+ pr_debug("%s: no hwmod or odev for %s, [%d] cannot add OPPs.\n",
+ __func__, opp_def->hwmod_name, i);
+ continue;
+ }
+ dev = &oh->od->pdev->dev;
}
- dev = &oh->od->pdev->dev;
- r = opp_add(dev, opp_def->freq, opp_def->u_volt);
+ r = dev_pm_opp_add(dev, opp_def->freq, opp_def->u_volt);
if (r) {
- dev_err(dev, "%s: add OPP %ld failed for %s [%d] "
- "result=%d\n",
- __func__, opp_def->freq,
- opp_def->hwmod_name, i, r);
+ dev_err(dev, "%s: add OPP %ld failed for %s [%d] result=%d\n",
+ __func__, opp_def->freq,
+ opp_def->hwmod_name, i, r);
} else {
if (!opp_def->default_available)
- r = opp_disable(dev, opp_def->freq);
+ r = dev_pm_opp_disable(dev, opp_def->freq);
if (r)
- dev_err(dev, "%s: disable %ld failed for %s "
- "[%d] result=%d\n",
+ dev_err(dev, "%s: disable %ld failed for %s [%d] result=%d\n",
__func__, opp_def->freq,
opp_def->hwmod_name, i, r);
}
- opp_def++;
}
return 0;