dmaengine: tegra210-adma: Use div_u64 for 64 bit division

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The ADMA base and page address are represented using a 64-bit variable.
To accurately derive the exact ADMA page number provided from the DT
properties, use the div_u64() to divide the address difference between
adma page and base address by the page offset.

This change fixes the below error
   "ERROR: modpost: "__udivdi3" [drivers/dma/tegra210-adma.ko] undefined!
    ld: drivers/dma/tegra210-adma.o: in function `tegra_adma_probe':
    tegra210-adma.c:(.text+0x12cf): undefined reference to `__udivdi3'"

Fixes: 68811c928f ("dmaengine: tegra210-adma: Support channel page")
Cc: stable@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202412250204.GCQhdKe3-lkp@intel.com/
Signed-off-by: Mohan Kumar D <mkumard@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250210135413.2504272-2-mkumard@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

...

This commit is contained in:

Mohan Kumar D 2025-02-10 19:24:12 +05:30 • committed by Vinod Koul

parent 2014c95afe

commit 17987453a9

1 changed files with 11 additions and 4 deletions

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drivers/dma/tegra210-adma.c

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