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Replace the devm_ioremap_nocache() call with devm_ioremap_resource().
This simplifies error checking.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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The function can fail, don't ignore its error value.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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The lock is taken in atomic context, replace it with a spinlock.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
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This is the Renesas IPMMU driver and IOMMU API implementation.
The IPMMU module supports the MMU function and the PMB function. The
MMU function provides address translation by pagetable compatible with
ARMv6. The PMB function provides address translation including
tile-linear translation. This patch implements the MMU function.
The iommu driver does not register a platform driver directly because:
- the register space of the MMU function and the PMB function
have a common register (used for settings flush), so they should ideally
have a way to appropriately share this register.
- the MMU function uses the IOMMU API while the PMB function does not.
- the two functions may be used independently.
Signed-off-by: Hideki EIRAKU <hdk@igel.co.jp>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
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