From mboxrd@z Thu Jan 1 00:00:00 1970 From: dan.j.williams@intel.com (Dan Williams) Date: Fri, 24 Jul 2015 22:38:58 -0400 Subject: [PATCH v2 11/25] gma500: switch from acpi_os_ioremap to ioremap In-Reply-To: <20150725023649.8664.59145.stgit@dwillia2-desk3.amr.corp.intel.com> References: <20150725023649.8664.59145.stgit@dwillia2-desk3.amr.corp.intel.com> Message-ID: <20150725023858.8664.23506.stgit@dwillia2-desk3.amr.corp.intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Cc: dri-devel at lists.freedesktop.org Signed-off-by: Dan Williams --- 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;