From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Mon, 13 Jan 2014 20:34:04 +0000 Subject: [PATCH RFC 00/26] Migrate more OMAP DMA code to DMA engine In-Reply-To: <20140113192630.GB7746@atomide.com> References: <20140102150836.GA3826@n2100.arm.linux.org.uk> <20140108012110.GL5074@atomide.com> <20140109152437.GB27282@n2100.arm.linux.org.uk> <20140113141811.GD27282@n2100.arm.linux.org.uk> <20140113173744.GA7746@atomide.com> <20140113185503.GE27282@n2100.arm.linux.org.uk> <20140113192630.GB7746@atomide.com> Message-ID: <20140113203404.GF27282@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Jan 13, 2014 at 11:26:31AM -0800, Tony Lindgren wrote: > * Russell King - ARM Linux [140113 10:57]: > > On Mon, Jan 13, 2014 at 09:37:45AM -0800, Tony Lindgren wrote: > > > * Russell King - ARM Linux [140113 08:48]: > > > > Any news on this? > > > > > > Sorry for the delay, now getting this: > > > > > > arch/arm/mach-omap1/dma.c: In function ?omap1_system_dma_init?: > > > arch/arm/mach-omap1/dma.c:368: error: ?struct omap_dma_dev_attr? has no member named ?chan? > > > > Gah. Next incremental patch: > > Thanks, now getting this on omap1: > > # dmesg | grep -i dma > DMA: preallocated 256 KiB pool for atomic coherent allocations > OMAP DMA hardware version 1 > DMA capabilities: 0000000c:00000000:01ff:003f:007f > omap-dma-engine omap-dma-engine: invalid resource > omap-dma-engine: probe of omap-dma-engine failed with error -22 > mmci-omap mmci-omap.1: unable to obtain TX DMA engine channel 54 > mmci-omap mmci-omap.1: unable to obtain RX DMA engine channel 55 Sigh... let's give it the iomem resource then: diff --git a/arch/arm/mach-omap1/dma.c b/arch/arm/mach-omap1/dma.c index 1b1b64647def..4be601b638d7 100644 --- a/arch/arm/mach-omap1/dma.c +++ b/arch/arm/mach-omap1/dma.c @@ -261,6 +261,8 @@ static const struct platform_device_info omap_dma_dev_info = { .name = "omap-dma-engine", .id = -1, .dma_mask = DMA_BIT_MASK(32), + .res = res, + .num_res = 1, }; static struct omap_system_dma_plat_info dma_plat_info __initdata = { -- FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad. Estimate before purchase was "up to 13.2Mbit".