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MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3

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[ Upstream commit feef791866 ]

Setting GPIO 21 high seems to be required to enable power to USB ports
on the WNDR3400v3. As there is already similar code for WNR3500L,
make the existing USB power GPIO code generic and use that.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20259/
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tuomas Tynkkynen
2018-08-19 22:20:23 +03:00
committed by Greg Kroah-Hartman
parent 807bd32150
commit ba2c41fcca
1 changed files with 5 additions and 3 deletions
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8
arch/mips/bcm47xx/workarounds.c
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@@ -4,9 +4,8 @@
#include <bcm47xx_board.h>
#include <bcm47xx.h>
static void __init bcm47xx_workarounds_netgear_wnr3500l(void)
static void __init bcm47xx_workarounds_enable_usb_power(int usb_power)
{
const int usb_power = 12;
int err;
err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power");
@@ -22,7 +21,10 @@ void __init bcm47xx_workarounds(void)
switch (board) {
case BCM47XX_BOARD_NETGEAR_WNR3500L:
bcm47xx_workarounds_netgear_wnr3500l();
bcm47xx_workarounds_enable_usb_power(12);
break;
case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:
bcm47xx_workarounds_enable_usb_power(21);
break;
default:
/* No workaround(s) needed */