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Date: Fri, 6 Nov 2015 17:23:59 -0800 From: Douglas Anderson <dianders@...omium.org> To: John Youn <John.Youn@...opsys.com>, balbi@...com Cc: Yunzhi Li <lyz@...k-chips.com>, Heiko Stübner <heiko@...ech.de>, linux-rockchip@...ts.infradead.org, Julius Werner <jwerner@...omium.org>, gregory.herrero@...el.com, yousaf.kaukab@...el.com, dinguyen@...nsource.altera.com, stern@...land.harvard.edu, ming.lei@...onical.com, Douglas Anderson <dianders@...omium.org>, johnyoun@...opsys.com, gregkh@...uxfoundation.org, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v2 1/4] usb: dwc2: rockchip: Make the max_transfer_size automatic Previously we needed to set the max_transfer_size to explicitly be 65535 because the old driver would detect that our hardware could support much bigger transfers and then would try to do them. This wouldn't work since the DMA alignment code couldn't support it. Later in commit e8f8c14d9da7 ("usb: dwc2: clip max_transfer_size to 65535") upstream added support for clipping this automatically. Since that commit it has been OK to just use "-1" (default), but nobody bothered to change it. Let's change it to default now for two reasons: - It's nice to use autodetected params. - If we can remove the 65535 limit, we can transfer more! Signed-off-by: Douglas Anderson <dianders@...omium.org> Tested-by: Heiko Stuebner <heiko@...ech.de> --- Changes in v2: None drivers/usb/dwc2/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 5859b0fa19ee..f26e0c31c07e 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -95,7 +95,7 @@ static const struct dwc2_core_params params_rk3066 = { .host_rx_fifo_size = 520, /* 520 DWORDs */ .host_nperio_tx_fifo_size = 128, /* 128 DWORDs */ .host_perio_tx_fifo_size = 256, /* 256 DWORDs */ - .max_transfer_size = 65535, + .max_transfer_size = -1, .max_packet_count = -1, .host_channels = -1, .phy_type = -1, -- 2.6.0.rc2.230.g3dd15c0 -- 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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