[PATCH] tpm: TCG_ATMEL should depend on HAS_IOPORT

From: Geert Uytterhoeven
Date: Mon Aug 08 2011 - 07:08:33 EST

On m68k, I get:

drivers/char/tpm/tpm_atmel.h: In function âatmel_get_base_addrâ:
drivers/char/tpm/tpm_atmel.h:129: error: implicit declaration of function âioport_mapâ
drivers/char/tpm/tpm_atmel.h:129: warning: return makes pointer from integer without a cast

The code in tpm_atmel.h supports PPC64 (using the device tree and ioremap())
and "anything else" (using ioport_map()). However, ioportmap() is only
available on platforms that set HAS_IOPORT.

Although PC64 seems to have HAS_IOPORT, a "depends on HAS_IOPORT" should work,
but I think it's better to expose the special PPC64 handling explicit using
"depends on PPC64 || HAS_IOPORT".

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
drivers/char/tpm/Kconfig | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index f6595ab..fa567f1 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -43,6 +43,7 @@ config TCG_NSC

config TCG_ATMEL
tristate "Atmel TPM Interface"
+ depends on PPC64 || HAS_IOPORT
If you have a TPM security chip from Atmel say Yes and it
will be accessible from within Linux. To compile this driver

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