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Message-Id: <1444872974-2466-1-git-send-email-shawn.lin@rock-chips.com> Date: Thu, 15 Oct 2015 09:36:14 +0800 From: Shawn Lin <shawn.lin@...k-chips.com> To: Vinod Koul <vinod.koul@...el.com>, Heiko Stuebner <heiko@...ech.de>, Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, Mark Brown <broonie@...nel.org> Cc: Lars-Peter Clausen <lars@...afoo.de>, Doug Anderson <dianders@...omium.org>, Olof Johansson <olof@...om.net>, Sonny Rao <sonnyrao@...omium.org>, Addy Ke <addy.ke@...k-chips.com>, Boojin Kim <boojin.kim@...sung.com>, dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, alsa-devel@...a-project.org, linux-spi@...r.kernel.org, Shawn Lin <shawn.lin@...k-chips.com> Subject: [PATCH v6 07/10] DMA: pl330: add max burst for dmaengine This patch add max burst capability for dmaengine and limit burst capability to one for PL330_QUIRK_BROKEN_NO_FLUSHP Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com> --- Changes in v6: - remove expose quirks and add max_burst for dmaengine Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None Changes in v1: None drivers/dma/pl330.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 008408d..1b0453b 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -33,6 +33,7 @@ #define PL330_MAX_CHAN 8 #define PL330_MAX_IRQS 32 #define PL330_MAX_PERI 32 +#define PL330_MAX_BURST 16 #define PL330_QUIRK_BROKEN_NO_FLUSHP BIT(0) @@ -2938,6 +2939,8 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) pd->dst_addr_widths = PL330_DMA_BUSWIDTHS; pd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); pd->residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; + pd->max_burst = ((pl330->quirks & PL330_QUIRK_BROKEN_NO_FLUSHP) ? + 1 : PL330_MAX_BURST); ret = dma_async_device_register(pd); if (ret) { -- 2.3.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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