From: Wolfram Sang <[email protected]> It should be the DMA device, not the platform device.
Signed-off-by: Wolfram Sang <[email protected]> --- drivers/i2c/busses/i2c-sh_mobile.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 903bb22aa5b4..c2362a4bec25 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -511,6 +511,17 @@ static irqreturn_t sh_mobile_i2c_isr(int irq, void *dev_id) return IRQ_HANDLED; } +static void sh_mobile_i2c_dma_unmap(struct sh_mobile_i2c_data *pd) +{ + struct dma_chan *chan = pd->dma_direction == DMA_FROM_DEVICE + ? pd->dma_rx : pd->dma_tx; + + dma_unmap_single(chan->device->dev, sg_dma_address(&pd->sg), + pd->msg->len, pd->dma_direction); + + pd->dma_direction = DMA_NONE; +} + static void sh_mobile_i2c_cleanup_dma(struct sh_mobile_i2c_data *pd) { if (pd->dma_direction == DMA_NONE) @@ -520,20 +531,14 @@ static void sh_mobile_i2c_cleanup_dma(struct sh_mobile_i2c_data *pd) else if (pd->dma_direction == DMA_TO_DEVICE) dmaengine_terminate_all(pd->dma_tx); - dma_unmap_single(pd->dev, sg_dma_address(&pd->sg), - pd->msg->len, pd->dma_direction); - - pd->dma_direction = DMA_NONE; + sh_mobile_i2c_dma_unmap(pd); } static void sh_mobile_i2c_dma_callback(void *data) { struct sh_mobile_i2c_data *pd = data; - dma_unmap_single(pd->dev, sg_dma_address(&pd->sg), - pd->msg->len, pd->dma_direction); - - pd->dma_direction = DMA_NONE; + sh_mobile_i2c_dma_unmap(pd); pd->pos = pd->msg->len; iic_set_clr(pd, ICIC, 0, ICIC_TDMAE | ICIC_RDMAE); @@ -551,7 +556,7 @@ static void sh_mobile_i2c_xfer_dma(struct sh_mobile_i2c_data *pd) if (!chan) return; - dma_addr = dma_map_single(pd->dev, pd->msg->buf, pd->msg->len, dir); + dma_addr = dma_map_single(chan->device->dev, pd->msg->buf, pd->msg->len, dir); if (dma_mapping_error(pd->dev, dma_addr)) { dev_dbg(pd->dev, "dma map failed, using PIO\n"); return; -- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
