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Commit 3cffa081 authored by JC Kuo's avatar JC Kuo Committed by Kishon Vijay Abraham I
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phy: tegra: xusb: Skip single function lane programming 



Tegra186 USB2 pads and USB3 pads do not have hardware mux for changing
the pad function. For such "lanes", we can skip the lane mux register
programming.

Signed-off-by: default avatarJC Kuo <jckuo@nvidia.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent 2b8d5929

drivers/phy/tegra/xusb.c

+5 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2014-2015, NVIDIA CORPORATION.  All rights reserved.

 * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms and conditions of the GNU General Public License,
@@ -313,6 +313,10 @@ static void tegra_xusb_lane_program(struct tegra_xusb_lane *lane) 
	const struct tegra_xusb_lane_soc *soc = lane->soc;

	u32 value;



	/* skip single function lanes */

	if (soc->num_funcs < 2)

		return;



	/* choose function */

	value = padctl_readl(padctl, soc->offset);

	value &= ~(soc->mask << soc->shift);