ACPI / LPSS: Deassert resets for SPI host controllers on Braswell
authorMika Westerberg <mika.westerberg@linux.intel.com>
Wed, 18 Feb 2015 11:50:17 +0000 (13:50 +0200)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 18 Feb 2015 17:47:44 +0000 (18:47 +0100)
commit3095794ae972bc6fc76af6cb3b864d6686b96094
tree5a55e78482f6e4d44492a0a7f1932ac0636a2bc7
parent3293c7b8ec213a640f5ea2e5efeaa2b7559b1e19
ACPI / LPSS: Deassert resets for SPI host controllers on Braswell

On some Braswell systems BIOS leaves resets for SPI host controllers
active. This prevents the SPI driver from transferring messages on wire.

Fix this in similar way that we do for I2C already by deasserting resets
for the SPI host controllers.

Reported-by: Yang A Fang <yang.a.fang@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: 3.17+ <stable@vger.kernel.org> # 3.17+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/acpi_lpss.c