From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
To: linux-i2c@vger.kernel.org
Cc: Wolfram Sang <wsa@the-dreams.de>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
David Box <david.e.box@linux.intel.com>,
Jarkko Nikula <jarkko.nikula@linux.intel.com>
Subject: [PATCH 2/2] i2c: designware: Allow build Baytrail semaphore support when IOSF_MBI=m
Date: Thu, 10 Dec 2015 13:48:44 +0200 [thread overview]
Message-ID: <1449748124-20744-2-git-send-email-jarkko.nikula@linux.intel.com> (raw)
In-Reply-To: <1449748124-20744-1-git-send-email-jarkko.nikula@linux.intel.com>
I believe i2c-designware-baytrail.c doesn't have strict dependency that
Intel SoC IOSF Sideband support must be always built-in in order to be
able to compile support for Intel Baytrail I2C bus sharing HW semaphore.
Redefine build dependencies so that CONFIG_IOSF_MBI=y is required only
when CONFIG_I2C_DESIGNWARE_PLATFORM is built-in.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
---
Hi David. Can you ack/nak this patch as I'm not fully familiar with this
HW semaphore can there be problems when IOSF_MBI is built as a module.
At least I'm getting similar sensible looking "punit semaphore
acquired/held for x ms" debug messages when I modprobe/rmmod
i2c_designware_platform independently is the CONFIG_IOSF_MBI=y or =m.
---
drivers/i2c/busses/Kconfig | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 69c46fe13777..76f4d024def0 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -490,7 +490,9 @@ config I2C_DESIGNWARE_PCI
config I2C_DESIGNWARE_BAYTRAIL
bool "Intel Baytrail I2C semaphore support"
- depends on I2C_DESIGNWARE_PLATFORM && IOSF_MBI=y && ACPI
+ depends on ACPI
+ depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
+ (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
help
This driver enables managed host access to the PMIC I2C bus on select
Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
--
2.6.2
next prev parent reply other threads:[~2015-12-10 11:48 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-10 11:48 [PATCH 1/2] i2c: designware: Keep pm_runtime_enable/_disable calls in sync Jarkko Nikula
2015-12-10 11:48 ` Jarkko Nikula [this message]
2015-12-10 12:59 ` [PATCH 2/2] i2c: designware: Allow build Baytrail semaphore support when IOSF_MBI=m Andy Shevchenko
2015-12-10 13:56 ` Jarkko Nikula
2016-01-04 19:51 ` Wolfram Sang
2016-01-05 22:21 ` David E. Box
2016-04-12 21:27 ` Wolfram Sang
2016-04-12 21:46 ` David E. Box
2016-06-19 17:31 ` Wolfram Sang
2015-12-12 17:06 ` [PATCH 1/2] i2c: designware: Keep pm_runtime_enable/_disable calls in sync Wolfram Sang
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