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authorNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>2018-09-13 17:47:08 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2018-10-08 12:40:43 +0300
commit54541815b43f4e49c82628bf28bbb31d86d2f58a (patch)
tree65f2d7e02862ceacf51000998ad827ca9d378f4e /drivers/mmc/host/mxcmmc.c
parent07bafc1e3536a4e3c422dbd13341688b54f159bb (diff)
downloadlinux-54541815b43f4e49c82628bf28bbb31d86d2f58a.tar.xz
mmc: renesas_sdhi_internal_dmac: set scatter/gather max segment size
Fix warning when running with CONFIG_DMA_API_DEBUG_SG=y by allocating a device_dma_parameters structure and filling in the max segment size. The size used is the result of a discussion with Renesas hardware engineers and unfortunately not found in the datasheet. renesas_sdhi_internal_dmac ee140000.sd: DMA-API: mapping sg segment longer than device claims to support [len=126976] [max=65536] Reported-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> [wsa: simplified some logic after validating intended dma_parms life cycle and added comment] Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/mxcmmc.c')
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