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Commit 08e53100 authored by Helmut Schaa's avatar Helmut Schaa Committed by John W. Linville
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rt2x00: Wait up to one second on rt2800 for WPDMA to be ready 



At least some devices need such a long time to inititalize WPDMA. This
only increases the maximum wait time and shouldn't affect devices that
have been working before.

Reported-by: default avatarJoshua Smith <jesmith@kaon.com>
Signed-off-by: default avatarHelmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent efd2f271

drivers/net/wireless/rt2x00/rt2800lib.c

+5 −1
Original line number Diff line number Diff line
@@ -277,13 +277,17 @@ int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev) 
	unsigned int i;

	u32 reg;



	/*

	 * Some devices are really slow to respond here. Wait a whole second

	 * before timing out.

	 */

	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {

		rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);

		if (!rt2x00_get_field32(reg, WPDMA_GLO_CFG_TX_DMA_BUSY) &&

		    !rt2x00_get_field32(reg, WPDMA_GLO_CFG_RX_DMA_BUSY))

			return 0;



		msleep(1);

		msleep(10);

	}



	ERROR(rt2x00dev, "WPDMA TX/RX busy, aborting.\n");