This is a note to let you know that I've just added the patch titled
hwspinlock: qcom: add missing regmap config for SFPB MMIO implementation
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hwspinlock-qcom-add-missing-regmap-config-for-sfpb-mmio-implementation.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 23316be8a9d450f33a21f1efe7d89570becbec58 Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@xxxxxxxxx>
Date: Sun, 16 Jul 2023 04:28:04 +0200
Subject: hwspinlock: qcom: add missing regmap config for SFPB MMIO implementation
From: Christian Marangi <ansuelsmth@xxxxxxxxx>
commit 23316be8a9d450f33a21f1efe7d89570becbec58 upstream.
Commit 5d4753f741d8 ("hwspinlock: qcom: add support for MMIO on older
SoCs") introduced and made regmap_config mandatory in the of_data struct
but didn't add the regmap_config for sfpb based devices.
SFPB based devices can both use the legacy syscon way to probe or the
new MMIO way and currently device that use the MMIO way are broken as
they lack the definition of the now required regmap_config and always
return -EINVAL (and indirectly makes fail probing everything that
depends on it, smem, nandc with smem-parser...)
Fix this by correctly adding the missing regmap_config and restore
function of hwspinlock on SFPB based devices with MMIO implementation.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 5d4753f741d8 ("hwspinlock: qcom: add support for MMIO on older SoCs")
Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230716022804.21239-1-ansuelsmth@xxxxxxxxx
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwspinlock/qcom_hwspinlock.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/hwspinlock/qcom_hwspinlock.c
+++ b/drivers/hwspinlock/qcom_hwspinlock.c
@@ -69,9 +69,18 @@ static const struct hwspinlock_ops qcom_
.unlock = qcom_hwspinlock_unlock,
};
+static const struct regmap_config sfpb_mutex_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = 0x100,
+ .fast_io = true,
+};
+
static const struct qcom_hwspinlock_of_data of_sfpb_mutex = {
.offset = 0x4,
.stride = 0x4,
+ .regmap_config = &sfpb_mutex_config,
};
static const struct regmap_config tcsr_msm8226_mutex_config = {
Patches currently in stable-queue which might be from ansuelsmth@xxxxxxxxx are
queue-6.1/hwspinlock-qcom-add-missing-regmap-config-for-sfpb-mmio-implementation.patch
