mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-09-18 23:09:29 +02:00
Peng Fan
77369b1e6a
- Introduce 'clk-scmi-oem.c' to support vendor-specific OEM extensions for the SCMI clock driver, allows clean integration of vendor-specific features without impacting the core SCMI clock driver logic. - Extend 'clk-scmi.h' with 'scmi_clk_oem' structure and related declarations. - Initialize OEM extensions via 'scmi_clk_oem_init()'. - Support querying OEM-specific features and setting spread spectrum. - Pass 'scmi_device' to 'scmi_clk_ops_select()' for OEM data access. Reviewed-by: Sebin Francis <sebin.francis@ti.com> Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Brian Masney <bmasney@redhat.com>
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright 2025 NXP
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*/
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#ifndef __SCMI_CLK_H
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#define __SCMI_CLK_H
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#include <linux/bits.h>
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#include <linux/clk-provider.h>
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#include <linux/scmi_protocol.h>
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#include <linux/types.h>
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#define NOT_ATOMIC false
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#define ATOMIC true
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enum scmi_clk_feats {
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SCMI_CLK_ATOMIC_SUPPORTED,
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SCMI_CLK_STATE_CTRL_SUPPORTED,
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SCMI_CLK_RATE_CTRL_SUPPORTED,
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SCMI_CLK_PARENT_CTRL_SUPPORTED,
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SCMI_CLK_DUTY_CYCLE_SUPPORTED,
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SCMI_CLK_EXT_OEM_SSC_SUPPORTED,
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SCMI_CLK_FEATS_COUNT
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};
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#define SCMI_MAX_CLK_OPS BIT(SCMI_CLK_FEATS_COUNT)
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struct scmi_clk {
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u32 id;
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struct device *dev;
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struct clk_hw hw;
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const struct scmi_clock_info *info;
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const struct scmi_protocol_handle *ph;
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struct clk_parent_data *parent_data;
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};
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#define to_scmi_clk(clk) container_of(clk, struct scmi_clk, hw)
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extern const struct scmi_clk_proto_ops *scmi_proto_clk_ops;
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struct scmi_clk_oem {
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int (*query_ext_oem_feats)(const struct scmi_protocol_handle *ph,
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u32 id, unsigned int *feats_key);
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int (*set_spread_spectrum)(struct clk_hw *hw,
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const struct clk_spread_spectrum *ss_conf);
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};
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int scmi_clk_oem_init(struct scmi_device *dev);
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#endif
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