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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2019-2022 Linaro Limited
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*/
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#define LOG_CATEGORY UCLASS_RESET
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <reset-uclass.h>
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#include <scmi_agent.h>
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#include <scmi_protocols.h>
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#include <asm/types.h>
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static int scmi_reset_set_level(struct reset_ctl *rst, bool assert_not_deassert)
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{
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struct scmi_rd_reset_in in = {
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.domain_id = rst->id,
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.flags = assert_not_deassert ? SCMI_RD_RESET_FLAG_ASSERT : 0,
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.reset_state = 0,
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};
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struct scmi_rd_reset_out out;
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struct scmi_msg msg = SCMI_MSG_IN(SCMI_PROTOCOL_ID_RESET_DOMAIN,
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SCMI_RESET_DOMAIN_RESET,
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in, out);
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int ret;
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ret = devm_scmi_process_msg(rst->dev, &msg);
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if (ret)
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return ret;
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return scmi_to_linux_errno(out.status);
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}
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static int scmi_reset_assert(struct reset_ctl *rst)
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{
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return scmi_reset_set_level(rst, true);
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}
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static int scmi_reset_deassert(struct reset_ctl *rst)
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{
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return scmi_reset_set_level(rst, false);
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}
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static int scmi_reset_request(struct reset_ctl *rst)
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{
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struct scmi_rd_attr_in in = {
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.domain_id = rst->id,
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};
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struct scmi_rd_attr_out out;
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struct scmi_msg msg = SCMI_MSG_IN(SCMI_PROTOCOL_ID_RESET_DOMAIN,
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SCMI_RESET_DOMAIN_ATTRIBUTES,
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in, out);
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int ret;
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/*
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* We don't really care about the attribute, just check
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* the reset domain exists.
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*/
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ret = devm_scmi_process_msg(rst->dev, &msg);
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if (ret)
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return ret;
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return scmi_to_linux_errno(out.status);
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}
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static const struct reset_ops scmi_reset_domain_ops = {
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.request = scmi_reset_request,
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.rst_assert = scmi_reset_assert,
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.rst_deassert = scmi_reset_deassert,
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};
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static int scmi_reset_probe(struct udevice *dev)
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{
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return devm_scmi_of_get_channel(dev);
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}
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U_BOOT_DRIVER(scmi_reset_domain) = {
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.name = "scmi_reset_domain",
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.id = UCLASS_RESET,
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.ops = &scmi_reset_domain_ops,
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.probe = scmi_reset_probe,
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};
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