[PATCH] i2c: Make I2C unavailable on s390 again

[Heiko Carstens]

"i2c: Make I2C available on UML" removed the IOMEM dependency from I2C which
resulted in I2C being avaible on s390 and causing allmodconfig and allyesconfig
builds to fail:

drivers/misc/altera-stapl/altera-lpt.c: In function 'byteblaster_write':
drivers/misc/altera-stapl/altera-lpt.c:34:2: error: implicit declaration of function 'outb' [-Werror=implicit-function-declaration]

Adding a HAS_PORT dependency to that driver reveals that there are lots
of other build errors waiting for discovery because of this change since
s390 does not support generic hardirqs:

ERROR: "free_irq" [drivers/power/smb347-charger.ko] undefined!
ERROR: "free_irq" [drivers/power/sbs-battery.ko] undefined!
ERROR: "enable_irq" [drivers/power/max17042_battery.ko] undefined!
ERROR: "request_irq" [drivers/power/max17042_battery.ko] undefined!
ERROR: "free_irq" [drivers/power/max17042_battery.ko] undefined!
ERROR: "disable_irq" [drivers/power/max17042_battery.ko] undefined!
ERROR: "request_irq" [drivers/power/lp8727_charger.ko] undefined!
ERROR: "free_irq" [drivers/power/lp8727_charger.ko] undefined!
ERROR: "request_irq" [drivers/nfc/pn544_hci.ko] undefined!
ERROR: "free_irq" [drivers/nfc/pn544_hci.ko] undefined!
ERROR: "request_irq" [drivers/nfc/pn544.ko] undefined!
ERROR: "free_irq" [drivers/nfc/pn544.ko] undefined!
ERROR: "request_irq" [drivers/misc/fsa9480.ko] undefined!
ERROR: "free_irq" [drivers/misc/fsa9480.ko] undefined!
ERROR: "request_irq" [drivers/misc/bh1770glc.ko] undefined!
ERROR: "free_irq" [drivers/misc/bh1770glc.ko] undefined!
ERROR: "request_irq" [drivers/misc/apds990x.ko] undefined!
ERROR: "free_irq" [drivers/misc/apds990x.ko] undefined!

Since UML seems to need generic I2C support, but lot's of now available
drivers fail to compile on s390, just add a !S390 dependency.

Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Peter Huewe <peterhuewe@xxxxxx>
Cc: Jean Delvare <khali@xxxxxxxxxxxx>
Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
---
 drivers/i2c/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 17b35c1..2f8c76b 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -4,6 +4,7 @@
 
 menuconfig I2C
 	tristate "I2C support"
+	depends on !S390
 	select RT_MUTEXES
 	---help---
 	  I2C (pronounce: I-squared-C) is a slow serial bus protocol used in
-- 
1.7.11.7

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