5dd745588e
WNDR3400v3 needs GPIO 21 pulled high to enable power to USB ports. Add a kernel patch to do that. Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 17cb62255ef8f6b6ac270024204a8fa65537b333 Mon Sep 17 00:00:00 2001
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From: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
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Date: Sun, 19 Aug 2018 21:23:14 +0300
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Subject: [PATCH] MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3
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Setting GPIO 21 high seems to be required to enable power to USB ports
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on the WNDR3400v3. As there is already similar code for WNR3500L,
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make the existing USB power GPIO code generic and use that.
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Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
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---
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arch/mips/bcm47xx/workarounds.c | 8 +++++---
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1 file changed, 5 insertions(+), 3 deletions(-)
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--- a/arch/mips/bcm47xx/workarounds.c
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+++ b/arch/mips/bcm47xx/workarounds.c
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@@ -5,9 +5,8 @@
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#include <bcm47xx_board.h>
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#include <bcm47xx.h>
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-static void __init bcm47xx_workarounds_netgear_wnr3500l(void)
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+static void __init bcm47xx_workarounds_enable_usb_power(int usb_power)
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{
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- const int usb_power = 12;
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int err;
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err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power");
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@@ -23,7 +22,10 @@ void __init bcm47xx_workarounds(void)
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switch (board) {
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case BCM47XX_BOARD_NETGEAR_WNR3500L:
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- bcm47xx_workarounds_netgear_wnr3500l();
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+ bcm47xx_workarounds_enable_usb_power(12);
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+ break;
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+ case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:
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+ bcm47xx_workarounds_enable_usb_power(21);
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break;
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default:
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/* No workaround(s) needed */
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