Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 01324ab2 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Joerg Roedel
Browse files

iommu/exynos: Fix master clock management for inactive SYSMMU 



If SYSMMU controller is not active, there is no point in enabling master's
clock just for doing the the of internal state. This patch moves enabling
that clock to the block which actually does the register access.

Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 0c2b063f

drivers/iommu/exynos-iommu.c

+4 −5
Original line number Diff line number Diff line
@@ -524,16 +524,15 @@ static void sysmmu_tlb_invalidate_flpdcache(struct sysmmu_drvdata *data, 
{

	unsigned long flags;



	clk_enable(data->clk_master);



	spin_lock_irqsave(&data->lock, flags);

	if (is_sysmmu_active(data)) {

		if (data->version >= MAKE_MMU_VER(3, 3))

	if (is_sysmmu_active(data) && data->version >= MAKE_MMU_VER(3, 3)) {

		clk_enable(data->clk_master);

		__sysmmu_tlb_invalidate_entry(data, iova, 1);

		clk_disable(data->clk_master);

	}

	spin_unlock_irqrestore(&data->lock, flags);



	clk_disable(data->clk_master);

}



static void sysmmu_tlb_invalidate_entry(struct sysmmu_drvdata *data,