From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754664AbcKEIGB (ORCPT ); Sat, 5 Nov 2016 04:06:01 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:33492 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754425AbcKEIFz (ORCPT ); Sat, 5 Nov 2016 04:05:55 -0400 Date: Sat, 5 Nov 2016 16:05:48 +0800 From: Hao Zhang To: maxime.ripard@free-electrons.com, wens@csie.org, dan.j.williams@intel.com, vinod.koul@intel.com Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, hao5781286@gmail.com Subject: [PATCH v2 1/1] ARM: dmaengine: sun6i: share the dma driver with sun50i Message-ID: <20161105080548.GA32546@arx12> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add soc a64 dma support. Signed-off-by: Hao Zhang --- drivers/dma/sun6i-dma.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 8346199..00fcfc7 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -1028,11 +1028,23 @@ static struct sun6i_dma_config sun8i_h3_dma_cfg = { .nr_max_vchans = 34, }; +/* + * The A64 has 8 physical channels, a maximum DRQ port id of 27, + * and a total of 38 usable source and destination endpoints. + */ + +static struct sun6i_dma_config sun50i_a64_dma_cfg = { + .nr_max_channels = 8, + .nr_max_requests = 27, + .nr_max_vchans = 38, +}; + static const struct of_device_id sun6i_dma_match[] = { { .compatible = "allwinner,sun6i-a31-dma", .data = &sun6i_a31_dma_cfg }, { .compatible = "allwinner,sun8i-a23-dma", .data = &sun8i_a23_dma_cfg }, { .compatible = "allwinner,sun8i-a83t-dma", .data = &sun8i_a83t_dma_cfg }, { .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg }, + { .compatible = "allwinner,sun50i-a64-dma", .data = &sun50i_a64_dma_cfg }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, sun6i_dma_match); @@ -1110,6 +1122,13 @@ static int sun6i_dma_probe(struct platform_device *pdev) sdc->slave.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | BIT(DMA_SLAVE_BUSWIDTH_4_BYTES); + + if (of_device_is_compatible(pdev->dev.of_node, + "allwinner,sun50i-a64-dma")) { + sdc->slave.src_addr_widths |= BIT(DMA_SLAVE_BUSWIDTH_8_BYTES); + sdc->slave.dst_addr_widths |= BIT(DMA_SLAVE_BUSWIDTH_8_BYTES); + } + sdc->slave.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); sdc->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; -- 2.7.4