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authorOmar Ramirez Luna <omar.luna@linaro.org>2012-11-19 19:05:50 -0600
committerJoerg Roedel <joro@8bytes.org>2012-12-03 18:48:13 +0100
commit72b15b6ae97796c5fac687addde5dbfab872cf94 (patch)
treebe849a67c3b00a4bb0f4651901e0c37323e74c94 /drivers/iommu/omap-iommu.c
parent87f8e57327bd8d85fb5b46cad29ac281430cc50d (diff)
downloadlinux-72b15b6ae97796c5fac687addde5dbfab872cf94.tar.gz
iommu/omap: Migrate to hwmod framework
Use hwmod data and device attributes to build and register an omap device for iommu driver. - Update the naming convention in isp module. - Remove unneeded check for number of resources, as this is now handled by omap_device and prevents driver from loading. - Now unused, remove platform device and resource data, handling of sysconfig register for softreset purposes, use default latency structure. - Use hwmod API for reset handling. Signed-off-by: Omar Ramirez Luna <omar.luna@linaro.org> Tested-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers/iommu/omap-iommu.c')
-rw-r--r--drivers/iommu/omap-iommu.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index f8082da6179..af9b4f31f59 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -143,13 +143,23 @@ EXPORT_SYMBOL_GPL(omap_iommu_arch_version);
static int iommu_enable(struct omap_iommu *obj)
{
int err;
+ struct platform_device *pdev = to_platform_device(obj->dev);
+ struct iommu_platform_data *pdata = pdev->dev.platform_data;
- if (!obj)
+ if (!obj || !pdata)
return -EINVAL;
if (!arch_iommu)
return -ENODEV;
+ if (pdata->deassert_reset) {
+ err = pdata->deassert_reset(pdev, pdata->reset_name);
+ if (err) {
+ dev_err(obj->dev, "deassert_reset failed: %d\n", err);
+ return err;
+ }
+ }
+
clk_enable(obj->clk);
err = arch_iommu->enable(obj);
@@ -159,12 +169,18 @@ static int iommu_enable(struct omap_iommu *obj)
static void iommu_disable(struct omap_iommu *obj)
{
- if (!obj)
+ struct platform_device *pdev = to_platform_device(obj->dev);
+ struct iommu_platform_data *pdata = pdev->dev.platform_data;
+
+ if (!obj || !pdata)
return;
arch_iommu->disable(obj);
clk_disable(obj->clk);
+
+ if (pdata->assert_reset)
+ pdata->assert_reset(pdev, pdata->reset_name);
}
/*
@@ -926,9 +942,6 @@ static int __devinit omap_iommu_probe(struct platform_device *pdev)
struct resource *res;
struct iommu_platform_data *pdata = pdev->dev.platform_data;
- if (pdev->num_resources != 2)
- return -EINVAL;
-
obj = kzalloc(sizeof(*obj) + MMU_REG_SIZE, GFP_KERNEL);
if (!obj)
return -ENOMEM;