Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752547AbbEFJdc (ORCPT ); Wed, 6 May 2015 05:33:32 -0400 Received: from mail-wi0-f180.google.com ([209.85.212.180]:38250 "EHLO mail-wi0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751282AbbEFJcI (ORCPT ); Wed, 6 May 2015 05:32:08 -0400 From: Jens Kuske To: Maxime Ripard , =?UTF-8?q?Emilio=20L=C3=B3pez?= , Mike Turquette , Linus Walleij , Vinod Koul , Rob Herring Cc: Jens Kuske , Chen-Yu Tsai , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com Subject: [PATCH 4/6] dmaengine: sun6i: Add support for Allwinner H3 (sun8i) variant Date: Wed, 6 May 2015 11:31:31 +0200 Message-Id: <1430904693-1404-5-git-send-email-jenskuske@gmail.com> X-Mailer: git-send-email 2.3.7 In-Reply-To: <1430904693-1404-1-git-send-email-jenskuske@gmail.com> References: <1430904693-1404-1-git-send-email-jenskuske@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2288 Lines: 60 The H3 SoC has the same dma engine as the A31 (sun6i), with a reduced amount of endpoints and physical channels. Add the proper config data and compatible string to support it. Signed-off-by: Jens Kuske --- Documentation/devicetree/bindings/dma/sun6i-dma.txt | 5 ++++- drivers/dma/sun6i-dma.c | 12 ++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/dma/sun6i-dma.txt b/Documentation/devicetree/bindings/dma/sun6i-dma.txt index 9cdcba24d..d13c136 100644 --- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt +++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt @@ -4,7 +4,10 @@ This driver follows the generic DMA bindings defined in dma.txt. Required properties: -- compatible: Must be "allwinner,sun6i-a31-dma" or "allwinner,sun8i-a23-dma" +- compatible: Must be one of + "allwinner,sun6i-a31-dma" + "allwinner,sun8i-a23-dma" + "allwinner,sun8i-h3-dma" - reg: Should contain the registers base address and length - interrupts: Should contain a reference to the interrupt used by this device - clocks: Should contain a reference to the parent AHB clock diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 11e5365..842ff97 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -891,9 +891,21 @@ static struct sun6i_dma_config sun8i_a23_dma_cfg = { .nr_max_vchans = 37, }; +/* + * The H3 has 12 physical channels, a maximum DRQ port id of 27, + * and a total of 34 usable source and destination endpoints. + */ + +static struct sun6i_dma_config sun8i_h3_dma_cfg = { + .nr_max_channels = 12, + .nr_max_requests = 27, + .nr_max_vchans = 34, +}; + 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-h3-dma", .data = &sun8i_h3_dma_cfg }, { /* sentinel */ } }; -- 2.3.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/