diff options
Diffstat (limited to 'drivers/power/reset/vexpress-poweroff.c')
| -rw-r--r-- | drivers/power/reset/vexpress-poweroff.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c index 476aa495c11..4dc102e2b23 100644 --- a/drivers/power/reset/vexpress-poweroff.c +++ b/drivers/power/reset/vexpress-poweroff.c @@ -11,7 +11,7 @@ * Copyright (C) 2012 ARM Limited */ -#include <linux/jiffies.h> +#include <linux/delay.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> @@ -23,17 +23,12 @@ static void vexpress_reset_do(struct device *dev, const char *what) { int err = -ENOENT; - struct vexpress_config_func *func = - vexpress_config_func_get_by_dev(dev); + struct regmap *reg = dev_get_drvdata(dev); - if (func) { - unsigned long timeout; - - err = vexpress_config_write(func, 0, 0); - - timeout = jiffies + HZ; - while (time_before(jiffies, timeout)) - cpu_relax(); + if (reg) { + err = regmap_write(reg, 0, 0); + if (!err) + mdelay(1000); } dev_emerg(dev, "Unable to %s (%d)\n", what, err); @@ -96,12 +91,18 @@ static int vexpress_reset_probe(struct platform_device *pdev) enum vexpress_reset_func func; const struct of_device_id *match = of_match_device(vexpress_reset_of_match, &pdev->dev); + struct regmap *regmap; if (match) func = (enum vexpress_reset_func)match->data; else func = pdev->id_entry->driver_data; + regmap = devm_regmap_init_vexpress_config(&pdev->dev); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + dev_set_drvdata(&pdev->dev, regmap); + switch (func) { case FUNC_SHUTDOWN: vexpress_power_off_device = &pdev->dev; |