Input: pm8xxx-vib - handle separate enable register

Some PMIC vibrator IPs use a separate enable register to turn the
vibrator on and off. To detect if a vibrator uses this feature, rely on
the enable_mask being non-zero.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/pm8xxx-vibrator.c b/drivers/input/misc/pm8xxx-vibrator.c
index cf94fa3..3dc8ffb 100644 (file)
--- a/drivers/input/misc/pm8xxx-vibrator.c
+++ b/drivers/input/misc/pm8xxx-vibrator.c
@@ -14,6 +14,7 @@
 #include <linux/input.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
@@ -26,6 +27,9 @@
 #define MAX_FF_SPEED           0xff
 
 struct pm8xxx_regs {
+       unsigned int enable_addr;
+       unsigned int enable_mask;
+
        unsigned int drv_addr;
        unsigned int drv_mask;
        unsigned int drv_shift;
@@ -82,7 +86,12 @@ static int pm8xxx_vib_set(struct pm8xxx_vib *vib, bool on)
                return rc;
 
        vib->reg_vib_drv = val;
-       return 0;
+
+       if (regs->enable_mask)
+               rc = regmap_update_bits(vib->regmap, regs->enable_addr,
+                                       on ? regs->enable_mask : 0, val);
+
+       return rc;
 }
 
 /**