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authorNeilBrown <neil@brown.name>2015-08-07 03:45:25 (GMT)
committerSebastian Reichel <sre@kernel.org>2015-08-07 05:04:56 (GMT)
commitb49d15d138aa4632f35a2db93dee775d920f3653 (patch)
treef273623e7839667c5de84ecb36406d5a85d34f60 /drivers/power/twl4030_charger.c
parentc9f85a90d41476aca2d3b60f98ab87d7ae1b8612 (diff)
downloadlinux-b49d15d138aa4632f35a2db93dee775d920f3653.tar.xz
twl4030_charger: fix compile error when TWL4030_MADC not available.
We can only use the madc to check for 'ac' availability if the madc has been compiled in. If not: assume always using USB. Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: NeilBrown <neil@brown.name> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/power/twl4030_charger.c')
-rw-r--r--drivers/power/twl4030_charger.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c
index 2c537ee..f4f2c1f 100644
--- a/drivers/power/twl4030_charger.c
+++ b/drivers/power/twl4030_charger.c
@@ -91,6 +91,21 @@
#define TWL4030_MSTATEC_COMPLETE1 0x0b
#define TWL4030_MSTATEC_COMPLETE4 0x0e
+#if IS_ENABLED(CONFIG_TWL4030_MADC)
+/*
+ * If AC (Accessory Charger) voltage exceeds 4.5V (MADC 11)
+ * then AC is available.
+ */
+static inline int ac_available(void)
+{
+ return twl4030_get_madc_conversion(11) > 4500;
+}
+#else
+static inline int ac_available(void)
+{
+ return 0;
+}
+#endif
static bool allow_usb;
module_param(allow_usb, bool, 0644);
MODULE_PARM_DESC(allow_usb, "Allow USB charge drawing default current");
@@ -263,7 +278,7 @@ static int twl4030_charger_update_current(struct twl4030_bci *bci)
* If AC (Accessory Charger) voltage exceeds 4.5V (MADC 11)
* and AC is enabled, set current for 'ac'
*/
- if (twl4030_get_madc_conversion(11) > 4500) {
+ if (ac_available()) {
cur = bci->ac_cur;
bci->ac_is_active = true;
} else {