diff options
Diffstat (limited to 'drivers/regulator/db8500-prcmu.c')
| -rw-r--r-- | drivers/regulator/db8500-prcmu.c | 133 |
1 files changed, 108 insertions, 25 deletions
diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c index 4bd25e75efa0..9dbb491b6efa 100644 --- a/drivers/regulator/db8500-prcmu.c +++ b/drivers/regulator/db8500-prcmu.c @@ -17,6 +17,8 @@ #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/db8500-prcmu.h> +#include <linux/regulator/of_regulator.h> +#include <linux/of.h> #include <linux/module.h> #include "dbx500-prcmu.h" @@ -410,45 +412,120 @@ dbx500_regulator_info[DB8500_NUM_REGULATORS] = { }, }; +static __devinit int db8500_regulator_register(struct platform_device *pdev, + struct regulator_init_data *init_data, + int id, + struct device_node *np) +{ + struct dbx500_regulator_info *info; + struct regulator_config config = { }; + int err; + + /* assign per-regulator data */ + info = &dbx500_regulator_info[id]; + info->dev = &pdev->dev; + + config.dev = &pdev->dev; + config.init_data = init_data; + config.driver_data = info; + config.of_node = np; + + /* register with the regulator framework */ + info->rdev = regulator_register(&info->desc, &config); + if (IS_ERR(info->rdev)) { + err = PTR_ERR(info->rdev); + dev_err(&pdev->dev, "failed to register %s: err %i\n", + info->desc.name, err); + + /* if failing, unregister all earlier regulators */ + while (--id >= 0) { + info = &dbx500_regulator_info[id]; + regulator_unregister(info->rdev); + } + return err; + } + + dev_dbg(rdev_get_dev(info->rdev), + "regulator-%s-probed\n", info->desc.name); + + return 0; +} + +static struct of_regulator_match db8500_regulator_matches[] = { + { .name = "db8500_vape", .driver_data = (void *) DB8500_REGULATOR_VAPE, }, + { .name = "db8500_varm", .driver_data = (void *) DB8500_REGULATOR_VARM, }, + { .name = "db8500_vmodem", .driver_data = (void *) DB8500_REGULATOR_VMODEM, }, + { .name = "db8500_vpll", .driver_data = (void *) DB8500_REGULATOR_VPLL, }, + { .name = "db8500_vsmps1", .driver_data = (void *) DB8500_REGULATOR_VSMPS1, }, + { .name = "db8500_vsmps2", .driver_data = (void *) DB8500_REGULATOR_VSMPS2, }, + { .name = "db8500_vsmps3", .driver_data = (void *) DB8500_REGULATOR_VSMPS3, }, + { .name = "db8500_vrf1", .driver_data = (void *) DB8500_REGULATOR_VRF1, }, + { .name = "db8500_sva_mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSP, }, + { .name = "db8500_sva_mmdsp_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSPRET, }, + { .name = "db8500_sva_pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAPIPE, }, + { .name = "db8500_sia_mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSP, }, + { .name = "db8500_sia_mmdsp_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSPRET, }, + { .name = "db8500_sia_pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAPIPE, }, + { .name = "db8500_sga", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SGA, }, + { .name = "db8500_b2r2_mcde", .driver_data = (void *) DB8500_REGULATOR_SWITCH_B2R2_MCDE, }, + { .name = "db8500_esram12", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12, }, + { .name = "db8500_esram12_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12RET, }, + { .name = "db8500_esram34", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34, }, + { .name = "db8500_esram34_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34RET, }, +}; + +static __devinit int +db8500_regulator_of_probe(struct platform_device *pdev, + struct device_node *np) +{ + int i, err; + + for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) { + err = db8500_regulator_register( + pdev, db8500_regulator_matches[i].init_data, + i, db8500_regulator_matches[i].of_node); + if (err) + return err; + } + + return 0; +} + static int __devinit db8500_regulator_probe(struct platform_device *pdev) { struct regulator_init_data *db8500_init_data = dev_get_platdata(&pdev->dev); + struct device_node *np = pdev->dev.of_node; int i, err; /* register all regulators */ - for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) { - struct dbx500_regulator_info *info; - struct regulator_init_data *init_data = &db8500_init_data[i]; - - /* assign per-regulator data */ - info = &dbx500_regulator_info[i]; - info->dev = &pdev->dev; - - /* register with the regulator framework */ - info->rdev = regulator_register(&info->desc, &pdev->dev, - init_data, info, NULL); - if (IS_ERR(info->rdev)) { - err = PTR_ERR(info->rdev); - dev_err(&pdev->dev, "failed to register %s: err %i\n", - info->desc.name, err); - - /* if failing, unregister all earlier regulators */ - while (--i >= 0) { - info = &dbx500_regulator_info[i]; - regulator_unregister(info->rdev); - } + if (np) { + err = of_regulator_match(&pdev->dev, np, + db8500_regulator_matches, + ARRAY_SIZE(db8500_regulator_matches)); + if (err < 0) { + dev_err(&pdev->dev, + "Error parsing regulator init data: %d\n", err); return err; } - dev_dbg(rdev_get_dev(info->rdev), - "regulator-%s-probed\n", info->desc.name); + err = db8500_regulator_of_probe(pdev, np); + if (err) + return err; + } else { + for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) { + err = db8500_regulator_register(pdev, + &db8500_init_data[i], + i, NULL); + if (err) + return err; + } } + err = ux500_regulator_debug_init(pdev, dbx500_regulator_info, ARRAY_SIZE(dbx500_regulator_info)); - - return err; + return 0; } static int __exit db8500_regulator_remove(struct platform_device *pdev) @@ -470,10 +547,16 @@ static int __exit db8500_regulator_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id db8500_prcmu_regulator_match[] = { + { .compatible = "stericsson,db8500-prcmu-regulator", }, + {} +}; + static struct platform_driver db8500_regulator_driver = { .driver = { .name = "db8500-prcmu-regulators", .owner = THIS_MODULE, + .of_match_table = db8500_prcmu_regulator_match, }, .probe = db8500_regulator_probe, .remove = __exit_p(db8500_regulator_remove), |