linux-kernel - [PATCH 4.4 149/193] Revert "power: bq27xxx_battery: Remove unneeded dependency in Kconfig"

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Date:   Fri, 23 Feb 2018 19:26:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 4.4 149/193] Revert "power: bq27xxx_battery: Remove unneeded dependency in Kconfig"

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@...db.de>

This reverts commit 6bd03ce3c12a22d86f59070f1da15aaa2bde8a51, it was applied
in error and cuased this link failure

drivers/built-in.o: In function `bq27xxx_battery_i2c_read':
core.c:(.text+0xa6da8): undefined reference to `i2c_transfer'
drivers/built-in.o: In function `bq27xxx_battery_init':
core.c:(.init.text+0x68e0): undefined reference to `i2c_register_driver'
drivers/built-in.o: In function `bq27xxx_battery_exit':
core.c:(.exit.text+0xc6c): undefined reference to `i2c_del_driver'

Later upstream kernels fixed this with a larger rework in commit
703df6c09795 ("power: bq27xxx_battery: Reorganize I2C into a module"),
but we cannot backport that to 4.4.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/power/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -159,6 +159,7 @@ config BATTERY_SBS
 
 config BATTERY_BQ27XXX
 	tristate "BQ27xxx battery driver"
+	depends on I2C || I2C=n
 	help
 	  Say Y here to enable support for batteries with BQ27xxx (I2C/HDQ) chips.