openwrt/target/linux/bcm27xx/patches-6.6/950-0517-reset-reset-brcmstb-rescal-Support-shared-use.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

48 lines
1.5 KiB
Diff

From d9791a686d6c55bd4c302944092898e31af79e64 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Tue, 7 Sep 2021 14:49:00 +0100
Subject: [PATCH 0517/1085] reset: reset-brcmstb-rescal: Support shared use
reset_control_reset should not be used with shared reset controllers.
Add support for reset_control_assert and _deassert to get the desired
behaviour and avoid ugly warnings in the kernel log.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/reset/reset-brcmstb-rescal.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/reset/reset-brcmstb-rescal.c
+++ b/drivers/reset/reset-brcmstb-rescal.c
@@ -20,6 +20,7 @@ struct brcm_rescal_reset {
struct reset_controller_dev rcdev;
};
+/* Also doubles a deassert */
static int brcm_rescal_reset_set(struct reset_controller_dev *rcdev,
unsigned long id)
{
@@ -52,6 +53,13 @@ static int brcm_rescal_reset_set(struct
return 0;
}
+/* A dummy function - deassert/reset does all the work */
+static int brcm_rescal_reset_assert(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ return 0;
+}
+
static int brcm_rescal_reset_xlate(struct reset_controller_dev *rcdev,
const struct of_phandle_args *reset_spec)
{
@@ -61,6 +69,8 @@ static int brcm_rescal_reset_xlate(struc
static const struct reset_control_ops brcm_rescal_reset_ops = {
.reset = brcm_rescal_reset_set,
+ .deassert = brcm_rescal_reset_set,
+ .assert = brcm_rescal_reset_assert,
};
static int brcm_rescal_reset_probe(struct platform_device *pdev)