Patch "regulator: tps65023: Fix inverted core enable logic." has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

regulator: tps65023: Fix inverted core enable logic.

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
regulator-tps65023-fix-inverted-core-enable-logic.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Richard Cochran <[email protected]>
Date: Mon, 17 Apr 2017 10:23:36 +0200
Subject: regulator: tps65023: Fix inverted core enable logic.

From: Richard Cochran <[email protected]>

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.

---
 drivers/regulator/tps65023-regulator.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

@@ -311,8 +311,7 @@ static int tps_65023_probe(struct i2c_cl
 
 	/* 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;
 }

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/regulator-tps65023-fix-inverted-core-enable-logic.patch