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69125b4b94
Commitc045ceb5a1("reset: tegra-bpmp: Handle errors in BPMP response") fixed an issue in the Tegra BPMP error handling but has exposed an issue in the Tegra194 HDA driver and now resetting the Tegra194 HDA controller is failing. For now revert the commitc045ceb5a1("reset: tegra-bpmp: Handle errors in BPMP response") while a fix for the Tegra HDA driver is created. Fixes:c045ceb5a1("reset: tegra-bpmp: Handle errors in BPMP response") Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20211112112712.21587-1-jonathanh@nvidia.com Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2016 NVIDIA Corporation
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*/
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#include <linux/reset-controller.h>
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#include <soc/tegra/bpmp.h>
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#include <soc/tegra/bpmp-abi.h>
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static struct tegra_bpmp *to_tegra_bpmp(struct reset_controller_dev *rstc)
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{
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return container_of(rstc, struct tegra_bpmp, rstc);
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}
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static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
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enum mrq_reset_commands command,
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unsigned int id)
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{
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struct tegra_bpmp *bpmp = to_tegra_bpmp(rstc);
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struct mrq_reset_request request;
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struct tegra_bpmp_message msg;
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memset(&request, 0, sizeof(request));
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request.cmd = command;
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request.reset_id = id;
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memset(&msg, 0, sizeof(msg));
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msg.mrq = MRQ_RESET;
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msg.tx.data = &request;
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msg.tx.size = sizeof(request);
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return tegra_bpmp_transfer(bpmp, &msg);
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}
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static int tegra_bpmp_reset_module(struct reset_controller_dev *rstc,
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unsigned long id)
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{
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return tegra_bpmp_reset_common(rstc, CMD_RESET_MODULE, id);
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}
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static int tegra_bpmp_reset_assert(struct reset_controller_dev *rstc,
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unsigned long id)
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{
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return tegra_bpmp_reset_common(rstc, CMD_RESET_ASSERT, id);
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}
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static int tegra_bpmp_reset_deassert(struct reset_controller_dev *rstc,
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unsigned long id)
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{
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return tegra_bpmp_reset_common(rstc, CMD_RESET_DEASSERT, id);
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}
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static const struct reset_control_ops tegra_bpmp_reset_ops = {
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.reset = tegra_bpmp_reset_module,
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.assert = tegra_bpmp_reset_assert,
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.deassert = tegra_bpmp_reset_deassert,
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};
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int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp)
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{
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bpmp->rstc.ops = &tegra_bpmp_reset_ops;
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bpmp->rstc.owner = THIS_MODULE;
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bpmp->rstc.of_node = bpmp->dev->of_node;
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bpmp->rstc.nr_resets = bpmp->soc->num_resets;
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return devm_reset_controller_register(bpmp->dev, &bpmp->rstc);
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}
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