From: Fabio Estevam Date: Tue, 2 Jul 2019 16:48:52 +0000 (-0300) Subject: dmaengine: Revert "dmaengine: fsl-edma: support little endian for edma driver" X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fc4a9030788548414ccdd9d04aa457d4e027ecaa;p=linux.git dmaengine: Revert "dmaengine: fsl-edma: support little endian for edma driver" This reverts commit 002905eca5bedab08bafd9e325bbbb41670c7712. Commit 002905eca5be ("dmaengine: fsl-edma: support little endian for edma driver") incorrectly assumed that there was not little endian support in the driver. This causes hangs on Vybrid, so revert it so that Vybrid systems could boot again. Reported-by: Krzysztof Kozlowski Signed-off-by: Fabio Estevam Tested-by: Krzysztof Kozlowski Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 6bf238e19d91d..680b2a00a9532 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -83,14 +83,9 @@ void fsl_edma_chan_mux(struct fsl_edma_chan *fsl_chan, u32 ch = fsl_chan->vchan.chan.chan_id; void __iomem *muxaddr; unsigned int chans_per_mux, ch_off; - int endian_diff[4] = {3, 1, -1, -3}; chans_per_mux = fsl_chan->edma->n_chans / DMAMUX_NR; ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux; - - if (!fsl_chan->edma->big_endian) - ch_off += endian_diff[ch_off % 4]; - muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux]; slot = EDMAMUX_CHCFG_SOURCE(slot);