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| author | Alper Nebi Yasak <alpernebiyasak@gmail.com> | 2023-10-13 23:27:35 +0300 |
|---|---|---|
| committer | Alper Nebi Yasak <alpernebiyasak@gmail.com> | 2023-10-14 16:48:41 +0300 |
| commit | 5b4ced3329f5fd8cb1fa166c8ac424e0bb618d67 (patch) | |
| tree | e8fc06243ce2439135e2dae2eefb0d1e2ed89498 | |
| parent | f459e05ecd40592d80d119d16449d40f0dfbfa78 (diff) | |
u-boot: Add patch to avoid regulator errors
U-Boot upstream has added a reference counting for regulator enable
actions which somehow makes gru-kevin unbootable. Add a workaround
that makes it work again.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
| -rw-r--r-- | config/u-boot/default/patches/0004-HACK-regulator-Don-t-error-on-reentrant-regulator-ac.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/config/u-boot/default/patches/0004-HACK-regulator-Don-t-error-on-reentrant-regulator-ac.patch b/config/u-boot/default/patches/0004-HACK-regulator-Don-t-error-on-reentrant-regulator-ac.patch new file mode 100644 index 00000000..3a66b99a --- /dev/null +++ b/config/u-boot/default/patches/0004-HACK-regulator-Don-t-error-on-reentrant-regulator-ac.patch @@ -0,0 +1,42 @@ +From 2ab104621dc97a89bc8f75e3b5903b83e793baf8 Mon Sep 17 00:00:00 2001 +From: Alper Nebi Yasak <alpernebiyasak@gmail.com> +Date: Sat, 19 Aug 2023 16:43:58 +0300 +Subject: [PATCH] HACK: regulator: Don't error on reentrant regulator actions + +Commit 4fcba5d556b42 ("regulator: implement basic reference counter") +implements reference counting for regulator enable/disable actions, but +does not update its callers to handle the error cases it adds. This +breaks gru-kevin, report enabling the regulator as a success as a +workaround. It would be better to fix the callers but that needs more +debugging. + +Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com> +--- + drivers/power/regulator/regulator_common.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/drivers/power/regulator/regulator_common.c b/drivers/power/regulator/regulator_common.c +index e26f5ebec347..1c2dfdf9b19d 100644 +--- a/drivers/power/regulator/regulator_common.c ++++ b/drivers/power/regulator/regulator_common.c +@@ -75,7 +75,7 @@ int regulator_common_set_enable(const struct udevice *dev, + /* If previously enabled, increase count */ + if (enable && plat->enable_count > 0) { + plat->enable_count++; +- return -EALREADY; ++ return 0; + } + + if (!enable) { +@@ -85,7 +85,7 @@ int regulator_common_set_enable(const struct udevice *dev, + return -EBUSY; + } else if (!plat->enable_count) { + /* If already disabled, do nothing */ +- return -EALREADY; ++ return 0; + } + } + +-- +2.42.0 + |