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| author | Mirko Parthey <mirko.parthey@web.de> | 2017-06-26 18:25:46 +0200 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2017-07-02 22:44:06 +0200 |
| commit | 1dace8cbe0ba32a4876cede2c9ee226462955dcd (patch) | |
| tree | 01532da4b9d7ce6e8eb277a7ffc17cf33f58cf84 /target/linux/brcm47xx | |
| parent | 896246b8c5835240de5dc72e6253b51528e69930 (diff) | |
| download | upstream-1dace8cbe0ba32a4876cede2c9ee226462955dcd.tar.gz upstream-1dace8cbe0ba32a4876cede2c9ee226462955dcd.tar.bz2 upstream-1dace8cbe0ba32a4876cede2c9ee226462955dcd.zip | |
brcm47xx: resolve GPIO conflict for WRT54GSv1
On the Linksys WRT54GSv1, the adm6996 switch driver and the
gpio_button_hotplug module both claim GPIO 6, which is connected to the
Reset button. When the switch driver's request wins, the Reset button
cannot work. This makes it impossible to enter failsafe mode without a
serial console.
Stop requesting the "adm_rc" GPIO in the switch driver, since it is not
used anywhere.
Fixes FS#792.
Signed-off-by: Mirko Parthey <mirko.parthey@web.de>
Diffstat (limited to 'target/linux/brcm47xx')
| -rw-r--r-- | target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch b/target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch index 115b6aea79..7e3d1d6173 100644 --- a/target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch +++ b/target/linux/brcm47xx/patches-4.4/209-b44-register-adm-switch.patch @@ -19,7 +19,7 @@ Subject: [PATCH 210/210] b44: register adm switch #include <asm/uaccess.h> #include <asm/io.h> -@@ -2240,6 +2242,70 @@ static void b44_adjust_link(struct net_d +@@ -2240,6 +2242,69 @@ static void b44_adjust_link(struct net_d } } @@ -50,11 +50,10 @@ Subject: [PATCH 210/210] b44: register adm switch + else + adm_data.eedi = 4; + -+ gpio = bcm47xx_nvram_gpio_pin("adm_rc"); -+ if (gpio >= 0) -+ adm_data.eerc = gpio; -+ else -+ adm_data.eerc = 5; ++ /* ++ * We ignore the "adm_rc" GPIO here. The driver does not use it, ++ * and it conflicts with the Reset button GPIO on the Linksys WRT54GSv1. ++ */ + + info.parent = bp->sdev->dev; + info.name = "adm6996_gpio"; @@ -90,7 +89,7 @@ Subject: [PATCH 210/210] b44: register adm switch static int b44_register_phy_one(struct b44 *bp) { struct mii_bus *mii_bus; -@@ -2283,6 +2349,9 @@ static int b44_register_phy_one(struct b +@@ -2283,6 +2348,9 @@ static int b44_register_phy_one(struct b if (!bp->mii_bus->phy_map[bp->phy_addr] && (sprom->boardflags_lo & (B44_BOARDFLAG_ROBO | B44_BOARDFLAG_ADM))) { @@ -100,7 +99,7 @@ Subject: [PATCH 210/210] b44: register adm switch dev_info(sdev->dev, "could not find PHY at %i, use fixed one\n", bp->phy_addr); -@@ -2479,6 +2548,7 @@ static void b44_remove_one(struct ssb_de +@@ -2479,6 +2547,7 @@ static void b44_remove_one(struct ssb_de unregister_netdev(dev); if (bp->flags & B44_FLAG_EXTERNAL_PHY) b44_unregister_phy_one(bp); |