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48 lines
1.5 KiB
Diff
48 lines
1.5 KiB
Diff
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From 87b1126181f79fb2558652af0d7fafd9deaab5f3 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Tue, 7 Sep 2021 14:49:00 +0100
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Subject: [PATCH] reset: reset-brcmstb-rescal: Support shared use
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reset_control_reset should not be used with shared reset controllers.
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Add support for reset_control_assert and _deassert to get the desired
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behaviour and avoid ugly warnings in the kernel log.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/reset/reset-brcmstb-rescal.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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--- a/drivers/reset/reset-brcmstb-rescal.c
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+++ b/drivers/reset/reset-brcmstb-rescal.c
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@@ -20,6 +20,7 @@ struct brcm_rescal_reset {
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struct reset_controller_dev rcdev;
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};
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+/* Also doubles a deassert */
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static int brcm_rescal_reset_set(struct reset_controller_dev *rcdev,
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unsigned long id)
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{
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@@ -52,6 +53,13 @@ static int brcm_rescal_reset_set(struct
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return 0;
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}
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+/* A dummy function - deassert/reset does all the work */
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+static int brcm_rescal_reset_assert(struct reset_controller_dev *rcdev,
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+ unsigned long id)
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+{
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+ return 0;
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+}
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+
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static int brcm_rescal_reset_xlate(struct reset_controller_dev *rcdev,
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const struct of_phandle_args *reset_spec)
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{
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@@ -61,6 +69,8 @@ static int brcm_rescal_reset_xlate(struc
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static const struct reset_control_ops brcm_rescal_reset_ops = {
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.reset = brcm_rescal_reset_set,
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+ .deassert = brcm_rescal_reset_set,
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+ .assert = brcm_rescal_reset_assert,
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};
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static int brcm_rescal_reset_probe(struct platform_device *pdev)
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