netdev - [PATCH] bfin_mac: Restore hardware time-stamping dependency on BF518

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Message-Id: <1357828948-22682-1-git-send-email-lars@metafoo.de>
Date:	Thu, 10 Jan 2013 15:42:28 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	Richard Cochran <richardcochran@...il.com>,
	uclinux-dist-devel@...ckfin.uclinux.org, netdev@...r.kernel.org,
	Lars-Peter Clausen <lars@...afoo.de>
Subject: [PATCH] bfin_mac: Restore hardware time-stamping dependency on BF518

Commit 70ac618c07 ("ptp: fixup Kconfig for two PHC drivers.") removed all
dependencies for the blackfin hardware time-stamping Kconfig entry. Hardware
time-stamping is only available on BF518 though. Since the Kconfig entry is
'default y', just updateing your kernel source and running `make defconfig` will
result in the the following build errors:

	drivers/net/ethernet/adi/bfin_mac.c:694: error: implicit declaration of function ‘bfin_read_EMAC_PTP_CTL’
	drivers/net/ethernet/adi/bfin_mac.c:702: error: implicit declaration of function ‘bfin_write_EMAC_PTP_FV3’
	drivers/net/ethernet/adi/bfin_mac.c:712: error: implicit declaration of function ‘bfin_write_EMAC_PTP_CTL’
	drivers/net/ethernet/adi/bfin_mac.c:717: error: implicit declaration of function ‘bfin_write_EMAC_PTP_FOFF’
	...

This patch adds back the dependency on BF518, and since it does not make sense
to expose this config option when the blackfin MAC driver is not enabled also
restore the dependency on BFIN_MAC.

Signed-off-by: Lars-Peter Clausen <lars@...afoo.de>
---
 drivers/net/ethernet/adi/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/adi/Kconfig b/drivers/net/ethernet/adi/Kconfig
index e49c0ef..a948160 100644
--- a/drivers/net/ethernet/adi/Kconfig
+++ b/drivers/net/ethernet/adi/Kconfig
@@ -61,6 +61,7 @@ config BFIN_RX_DESC_NUM
 
 config BFIN_MAC_USE_HWSTAMP
 	bool "Use IEEE 1588 hwstamp"
+	depends on BFIN_MAC && BF518
 	select PTP_1588_CLOCK
 	default y
 	---help---
-- 
1.8.0

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