From 637d6895f8f5ecc041ca6f521f544bb3d5699416 Mon Sep 17 00:00:00 2001 From: Florian Vaussard Date: Tue, 18 Jun 2013 15:17:56 +0200 Subject: [PATCH] mfd: twl4030-power: Split from twl-core into a dedicated module For now, the call to twl4030-power is hard-wired inside twl-core. To ease the future transition to DT, make twl4030-power as a separate module, like what is already done for twl4030-audio and others. Signed-off-by: Florian Vaussard Signed-off-by: Samuel Ortiz --- drivers/mfd/twl-core.c | 12 +++++++---- drivers/mfd/twl4030-power.c | 43 ++++++++++++++++++++++++++++--------- include/linux/i2c/twl.h | 1 - 3 files changed, 41 insertions(+), 15 deletions(-) diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 8d9bc10c5312..dbd52b373b27 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -1023,6 +1023,14 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, return PTR_ERR(child); } + if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power) { + child = add_child(TWL_MODULE_PM_MASTER, "twl4030_power", + pdata->power, sizeof(*pdata->power), false, + 0, 0); + if (IS_ERR(child)) + return PTR_ERR(child); + } + return 0; } @@ -1234,10 +1242,6 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) WARN(status < 0, "Error: reading twl_idcode register value\n"); } - /* load power event scripts */ - if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata && pdata->power) - twl4030_power_init(pdata->power); - /* Maybe init the T2 Interrupt subsystem */ if (client->irq) { if (twl_class_is_4030()) { diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c index dd362c1078e1..94bcbeed1d62 100644 --- a/drivers/mfd/twl4030-power.c +++ b/drivers/mfd/twl4030-power.c @@ -507,8 +507,9 @@ void twl4030_power_off(void) pr_err("TWL4030 Unable to power off\n"); } -void twl4030_power_init(struct twl4030_power_data *twl4030_scripts) +int twl4030_power_probe(struct platform_device *pdev) { + struct twl4030_power_data *pdata = pdev->dev.platform_data; int err = 0; int i; struct twl4030_resconfig *resconfig; @@ -524,14 +525,14 @@ void twl4030_power_init(struct twl4030_power_data *twl4030_scripts) if (err) goto unlock; - for (i = 0; i < twl4030_scripts->num; i++) { - err = load_twl4030_script(twl4030_scripts->scripts[i], address); + for (i = 0; i < pdata->num; i++) { + err = load_twl4030_script(pdata->scripts[i], address); if (err) goto load; - address += twl4030_scripts->scripts[i]->size; + address += pdata->scripts[i]->size; } - resconfig = twl4030_scripts->resource_config; + resconfig = pdata->resource_config; if (resconfig) { while (resconfig->resource) { err = twl4030_configure_resource(resconfig); @@ -543,7 +544,7 @@ void twl4030_power_init(struct twl4030_power_data *twl4030_scripts) } /* Board has to be wired properly to use this feature */ - if (twl4030_scripts->use_poweroff && !pm_power_off) { + if (pdata->use_poweroff && !pm_power_off) { /* Default for SEQ_OFFSYNC is set, lets ensure this */ err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val, TWL4030_PM_MASTER_CFG_P123_TRANSITION); @@ -568,18 +569,40 @@ relock: TWL4030_PM_MASTER_PROTECT_KEY); if (err) pr_err("TWL4030 Unable to relock registers\n"); - return; + return err; unlock: if (err) pr_err("TWL4030 Unable to unlock registers\n"); - return; + return err; load: if (err) pr_err("TWL4030 failed to load scripts\n"); - return; + return err; resource: if (err) pr_err("TWL4030 failed to configure resource\n"); - return; + return err; +} + +static int twl4030_power_remove(struct platform_device *pdev) +{ + return 0; } + +static struct platform_driver twl4030_power_driver = { + .driver = { + .name = "twl4030_power", + .owner = THIS_MODULE, + }, + .probe = twl4030_power_probe, + .remove = twl4030_power_remove, +}; + +module_platform_driver(twl4030_power_driver); + +MODULE_AUTHOR("Nokia Corporation"); +MODULE_AUTHOR("Texas Instruments, Inc."); +MODULE_DESCRIPTION("Power management for TWL4030"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:twl4030_power"); diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index 488debbef895..2167c0d00abf 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -658,7 +658,6 @@ struct twl4030_power_data { bool use_poweroff; /* Board is wired for TWL poweroff */ }; -extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts); extern int twl4030_remove_script(u8 flags); extern void twl4030_power_off(void); -- 2.39.5