From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Lee Jones <lee.jones@linaro.org>,
linux-kernel@vger.kernel.org,
Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 1/1] mfd: intel-lpss: Try to enable Memory-Write-Invalidate
Date: Thu, 10 Nov 2016 16:51:42 +0200 [thread overview]
Message-ID: <20161110145142.159911-1-andriy.shevchenko@linux.intel.com> (raw)
Enable MWI mechanism if PCI bus master supports it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/mfd/intel-lpss-pci.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c
index 50e78db..4756153 100644
--- a/drivers/mfd/intel-lpss-pci.c
+++ b/drivers/mfd/intel-lpss-pci.c
@@ -41,6 +41,7 @@ static int intel_lpss_pci_probe(struct pci_dev *pdev,
/* Probably it is enough to set this for iDMA capable devices only */
pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
ret = intel_lpss_probe(&pdev->dev, info);
if (ret)
--
2.9.3
next reply other threads:[~2016-11-10 14:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-10 14:51 Andy Shevchenko [this message]
2016-11-10 14:59 ` Mika Westerberg
2016-11-10 15:22 ` Andy Shevchenko
2016-11-10 16:39 ` Mika Westerberg
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