linux-kernel - [PATCH v2 11/25] gma500: switch from acpi_os

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Message-ID: <20150725023858.8664.23506.stgit@dwillia2-desk3.amr.corp.intel.com>
Date:	Fri, 24 Jul 2015 22:38:58 -0400
From:	Dan Williams <dan.j.williams@...el.com>
To:	tglx@...utronix.de, mingo@...nel.org, hpa@...or.com
Cc:	linux-arch@...r.kernel.org, toshi.kani@...com,
	linux-nvdimm@...ts.01.org, David Airlie <airlied@...ux.ie>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	rmk+kernel@....linux.org.uk, hch@....de,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 11/25] gma500: switch from acpi_os_ioremap to ioremap

acpi_os_ioremap uses cached mappings, however it appears that gma500
wants to read dynamic platform state.  Switch to ioremap() to prevent it
reading stale state from cache.

Cc: David Airlie <airlied@...ux.ie>
Cc: dri-devel@...ts.freedesktop.org
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
 drivers/gpu/drm/gma500/opregion.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c
index ab696ca7eeec..9809c26ea0cf 100644
--- a/drivers/gpu/drm/gma500/opregion.c
+++ b/drivers/gpu/drm/gma500/opregion.c
@@ -322,7 +322,7 @@ int psb_intel_opregion_setup(struct drm_device *dev)
 	INIT_WORK(&opregion->asle_work, psb_intel_opregion_asle_work);
 
 	DRM_DEBUG("OpRegion detected at 0x%8x\n", opregion_phy);
-	base = acpi_os_ioremap(opregion_phy, 8*1024);
+	base = ioremap(opregion_phy, 8*1024);
 	if (!base)
 		return -ENOMEM;
 

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