ee3f494cfc
[ Upstream commit 4a5210893625f89723ea210d7c630b730abb37ad ] This patch adds the support for giving the complete bitmask in reset structure and reset operation will use this bitmask for all reset operations. Currently, reset structure only takes a single bit for each reset and then calculates the bitmask by using the BIT() macro. However, this is not sufficient anymore for newer SoC-s like IPQ8074, IPQ6018 and more, since their networking resets require multiple bits to be asserted in order to properly reset the HW block completely. So, in order to allow asserting multiple bits add "bitmask" field to qcom_reset_map, and then use that bitmask value if its populated in the driver, if its not populated, then we just default to existing behaviour and calculate the bitmask on the fly. Signed-off-by: Robert Marko <robimarko@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20221107132901.489240-1-robimarko@gmail.com Stable-dep-of: 349b5bed539b ("clk: qcom: ipq6018: fix networking resets") Signed-off-by: Sasha Levin <sashal@kernel.org>
32 lines
604 B
C
32 lines
604 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2013, The Linux Foundation. All rights reserved.
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*/
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#ifndef __QCOM_CLK_RESET_H__
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#define __QCOM_CLK_RESET_H__
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#include <linux/reset-controller.h>
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struct qcom_reset_map {
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unsigned int reg;
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u8 bit;
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u8 udelay;
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u32 bitmask;
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};
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struct regmap;
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struct qcom_reset_controller {
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const struct qcom_reset_map *reset_map;
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struct regmap *regmap;
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struct reset_controller_dev rcdev;
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};
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#define to_qcom_reset_controller(r) \
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container_of(r, struct qcom_reset_controller, rcdev);
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extern const struct reset_control_ops qcom_reset_ops;
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#endif
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