core.c (25419de1b8dda24f3e02478b12b724a9b0cc4e78) core.c (878ec1a9f0e5a6b344c12fdc349ec7cb036c2a42)
1/*
2 * Generic OPP Interface
3 *
4 * Copyright (C) 2009-2010 Texas Instruments Incorporated.
5 * Nishanth Menon
6 * Romit Dasgupta
7 * Kevin Hilman
8 *

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1211 * This is required only for the V2 bindings, and it enables a platform to
1212 * specify the extn to be used for certain property names. The properties to
1213 * which the extension will apply are opp-microvolt and opp-microamp. OPP core
1214 * should postfix the property name with -<name> while looking for them.
1215 */
1216struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
1217{
1218 struct opp_table *opp_table;
1/*
2 * Generic OPP Interface
3 *
4 * Copyright (C) 2009-2010 Texas Instruments Incorporated.
5 * Nishanth Menon
6 * Romit Dasgupta
7 * Kevin Hilman
8 *

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1211 * This is required only for the V2 bindings, and it enables a platform to
1212 * specify the extn to be used for certain property names. The properties to
1213 * which the extension will apply are opp-microvolt and opp-microamp. OPP core
1214 * should postfix the property name with -<name> while looking for them.
1215 */
1216struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
1217{
1218 struct opp_table *opp_table;
1219 int ret;
1220
1221 opp_table = dev_pm_opp_get_opp_table(dev);
1222 if (!opp_table)
1223 return ERR_PTR(-ENOMEM);
1224
1225 /* Make sure there are no concurrent readers while updating opp_table */
1226 WARN_ON(!list_empty(&opp_table->opp_list));
1227
1219
1220 opp_table = dev_pm_opp_get_opp_table(dev);
1221 if (!opp_table)
1222 return ERR_PTR(-ENOMEM);
1223
1224 /* Make sure there are no concurrent readers while updating opp_table */
1225 WARN_ON(!list_empty(&opp_table->opp_list));
1226
1228 /* Do we already have a prop-name associated with opp_table? */
1229 if (opp_table->prop_name) {
1230 dev_err(dev, "%s: Already have prop-name %s\n", __func__,
1231 opp_table->prop_name);
1232 ret = -EBUSY;
1233 goto err;
1234 }
1227 /* Another CPU that shares the OPP table has set the property ? */
1228 if (opp_table->prop_name)
1229 return opp_table;
1235
1236 opp_table->prop_name = kstrdup(name, GFP_KERNEL);
1237 if (!opp_table->prop_name) {
1230
1231 opp_table->prop_name = kstrdup(name, GFP_KERNEL);
1232 if (!opp_table->prop_name) {
1238 ret = -ENOMEM;
1239 goto err;
1233 dev_pm_opp_put_opp_table(opp_table);
1234 return ERR_PTR(-ENOMEM);
1240 }
1241
1242 return opp_table;
1235 }
1236
1237 return opp_table;
1243
1244err:
1245 dev_pm_opp_put_opp_table(opp_table);
1246
1247 return ERR_PTR(ret);
1248}
1249EXPORT_SYMBOL_GPL(dev_pm_opp_set_prop_name);
1250
1251/**
1252 * dev_pm_opp_put_prop_name() - Releases resources blocked for prop-name
1253 * @opp_table: OPP table returned by dev_pm_opp_set_prop_name().
1254 *
1255 * This is required only for the V2 bindings, and is called for a matching
1256 * dev_pm_opp_set_prop_name(). Until this is called, the opp_table structure
1257 * will not be freed.
1258 */
1259void dev_pm_opp_put_prop_name(struct opp_table *opp_table)
1260{
1261 /* Make sure there are no concurrent readers while updating opp_table */
1262 WARN_ON(!list_empty(&opp_table->opp_list));
1263
1238}
1239EXPORT_SYMBOL_GPL(dev_pm_opp_set_prop_name);
1240
1241/**
1242 * dev_pm_opp_put_prop_name() - Releases resources blocked for prop-name
1243 * @opp_table: OPP table returned by dev_pm_opp_set_prop_name().
1244 *
1245 * This is required only for the V2 bindings, and is called for a matching
1246 * dev_pm_opp_set_prop_name(). Until this is called, the opp_table structure
1247 * will not be freed.
1248 */
1249void dev_pm_opp_put_prop_name(struct opp_table *opp_table)
1250{
1251 /* Make sure there are no concurrent readers while updating opp_table */
1252 WARN_ON(!list_empty(&opp_table->opp_list));
1253
1264 if (!opp_table->prop_name) {
1265 pr_err("%s: Doesn't have a prop-name\n", __func__);
1266 return;
1267 }
1268
1269 kfree(opp_table->prop_name);
1270 opp_table->prop_name = NULL;
1271
1272 dev_pm_opp_put_opp_table(opp_table);
1273}
1274EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
1275
1276static int _allocate_set_opp_data(struct opp_table *opp_table)

--- 530 unchanged lines hidden --- 		1254 kfree(opp_table->prop_name);
1255 opp_table->prop_name = NULL;
1256
1257 dev_pm_opp_put_opp_table(opp_table);
1258}
1259EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
1260
1261static int _allocate_set_opp_data(struct opp_table *opp_table)

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