dmaengine: tegra20-apb: stop checking config->slave_id

Nothing sets the slave_id field any more, so stop accessing
it to allow the removal of this field.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211122222203.4103644-11-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index b726074..eaafcbe 100644 (file)
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -343,12 +343,6 @@ static int tegra_dma_slave_config(struct dma_chan *dc,
        }
 
        memcpy(&tdc->dma_sconfig, sconfig, sizeof(*sconfig));
-       if (tdc->slave_id == TEGRA_APBDMA_SLAVE_ID_INVALID &&
-           sconfig->device_fc) {
-               if (sconfig->slave_id > TEGRA_APBDMA_CSR_REQ_SEL_MASK)
-                       return -EINVAL;
-               tdc->slave_id = sconfig->slave_id;
-       }
        tdc->config_init = true;
 
        return 0;