i2c: designware-baytrail: Only check iosf_mbi_available() for shared hosts
If (!shared_host) simply return 0, this avoids delaying the probe if
iosf_mbi_available() returns false when an i2c bus is not using the
punit semaphore.
Also move the if (!iosf_mbi_available()) check to above the
dev_info, so that we do not repeat the dev_info on every probe
until iosf_mbi_available() returns true.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170210102802.20898-6-hdegoede@redhat.com
diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c
index a3f581c..cf02222 100644
--- a/drivers/i2c/busses/i2c-designware-baytrail.c
+++ b/drivers/i2c/busses/i2c-designware-baytrail.c
@@ -138,15 +138,16 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
if (ACPI_FAILURE(status))
return 0;
- if (shared_host) {
- dev_info(dev->dev, "I2C bus managed by PUNIT\n");
- dev->acquire_lock = baytrail_i2c_acquire;
- dev->release_lock = baytrail_i2c_release;
- dev->pm_runtime_disabled = true;
- }
+ if (!shared_host)
+ return 0;
if (!iosf_mbi_available())
return -EPROBE_DEFER;
+ dev_info(dev->dev, "I2C bus managed by PUNIT\n");
+ dev->acquire_lock = baytrail_i2c_acquire;
+ dev->release_lock = baytrail_i2c_release;
+ dev->pm_runtime_disabled = true;
+
return 0;
}
