[openwrt/openwrt] apm821xx: MBL: band-aid MBL DUO

[LEDE Commits]

chunkeey pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/bf30ad1408f91d579f344e7798a2f03754fd21fc

commit bf30ad1408f91d579f344e7798a2f03754fd21fc
Author: Christian Lamparter <chunkeey at gmail.com>
AuthorDate: Thu Sep 23 18:37:38 2021 +0200

    apm821xx: MBL: band-aid MBL DUO
    
    Takimata reported on the OpenWrt forum in thread [0], that his
    MyBook Live Duo wasn't booting OpenWrt 21.02 after upgrading
    from the previous OpenWrt 19.07.
    
    The last logged entries on his console
    
    |[    0.531599] sata1-regulator GPIO handle specifies active low - ignored
    |[    0.538391] sata0-regulator GPIO handle specifies active low - ignored
    |[    0.759791] ata2: SATA link down (SStatus 0 SControl 300)
    |[    0.765251] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
    |[    5.909555] ata1.00: qc timeout (cmd 0xec)
    |[    5.913656] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
    |[    6.231757] ata1: SATA link down (SStatus 0 SControl 300)
    
    This extract clearly showed that the HDD on which OpenWrt is installed,
    simply disappeared after the SATA power regulators had been initialized.
    
    Since the device-tree regulators haven't changed since the OpenWrt 19.07
    days this will require further investigation on the snapshot/master/trunk
    branch.
    
    For the time being, it was requested to just delete the nodes so,
    the device will boot again. Which unfortunately,  will have to wait
    until 21.02.1 is released.
    
    He also confirmed that the My Book Live Single wasn't affected.
    It works with or without this change.
    
    [0] <https://forum.openwrt.org/t/21-02-0-and-snapshot-fail-to-boot-on-my-book-live-duo/106585>
    
    Reported-by: Takimata (forum.openwrt.org/u/takimata)
    Signed-off-by: Christian Lamparter <chunkeey at gmail.com>
---
 target/linux/apm821xx/dts/wd-mybooklive.dts | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/target/linux/apm821xx/dts/wd-mybooklive.dts b/target/linux/apm821xx/dts/wd-mybooklive.dts
index 3fd636cb23..895d914d6b 100644
--- a/target/linux/apm821xx/dts/wd-mybooklive.dts
+++ b/target/linux/apm821xx/dts/wd-mybooklive.dts
@@ -123,24 +123,6 @@
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 	};
-
-	sata1pwr: sata1-regulator {
-		compatible = "regulator-fixed";
-		regulator-name = "Power Drive Port 1";
-		gpios = <&GPIO1 3 GPIO_ACTIVE_LOW>;
-		regulator-min-microvolt = <12000000>;
-		regulator-max-microvolt = <12000000>;
-		regulator-always-on; /* needed to read OS from HDD */
-	};
-
-	sata0pwr: sata0-regulator {
-		compatible = "regulator-fixed";
-		regulator-name = "Power Drive Port 0";
-		gpios = <&GPIO1 7 GPIO_ACTIVE_LOW>;
-		regulator-min-microvolt = <12000000>;
-		regulator-max-microvolt = <12000000>;
-		regulator-always-on; /* needed to read OS from HDD */
-	};
 };
 
 &EMAC0 {