summaryrefslogtreecommitdiff
path: root/drivers/regulator
diff options
context:
space:
mode:
authorRichard Cochran <rcochran@linutronix.de>2017-04-17 10:23:36 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-05-25 14:30:09 +0200
commitde74aedd71c0b19c50545440b2efa31d3f4fbff5 (patch)
treefd06b8f00815bec751837f27a942b304088d10d9 /drivers/regulator
parent6d380f50113c984d7aa5fe0fe3dcf65844a3ccc6 (diff)
regulator: tps65023: Fix inverted core enable logic.
commit c90722b54a4f5e21ac59301ed9a6dbaa439bdb16 upstream. Commit 43530b69d758328d3ffe6ab98fd640463e8e3667 ("regulator: Use regmap_read/write(), regmap_update_bits functions directly") intended to replace working inline helper functions with standard regmap calls. However, it also inverted the set/clear logic of the "CORE ADJ Allowed" bit. That patch was clearly never tested, since without that bit cleared, the core VDCDC1 voltage output does not react to I2C configuration changes. This patch fixes the issue by clearing the bit as in the original, correct implementation. Note for stable back porting that, due to subsequent driver churn, this patch will not apply on every kernel version. Fixes: 43530b69d758 ("regulator: Use regmap_read/write(), regmap_update_bits functions directly") Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/tps65023-regulator.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index d2c3d7cc35f5..5ca6d2130593 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -311,8 +311,7 @@ static int tps_65023_probe(struct i2c_client *client,
/* Enable setting output voltage by I2C */
regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
- TPS65023_REG_CTRL2_CORE_ADJ,
- TPS65023_REG_CTRL2_CORE_ADJ);
+ TPS65023_REG_CTRL2_CORE_ADJ, 0);
return 0;
}