tmu.c (a28ec0e165ba2f90568828a2578aaa8540e13bc5) tmu.c (23ccd21ccb56fbfd32cb9016dcb1ccb08c662396)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Thunderbolt Time Management Unit (TMU) support
4 *
5 * Copyright (C) 2019, Intel Corporation
6 * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
7 * Rajmohan Mani <rajmohan.mani@intel.com>
8 */

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147
148static int tb_port_tmu_time_sync_enable(struct tb_port *port)
149{
150 return tb_port_tmu_time_sync(port, false);
151}
152
153static int tb_switch_tmu_set_time_disruption(struct tb_switch *sw, bool set)
154{
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Thunderbolt Time Management Unit (TMU) support
4 *
5 * Copyright (C) 2019, Intel Corporation
6 * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
7 * Rajmohan Mani <rajmohan.mani@intel.com>
8 */

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147
148static int tb_port_tmu_time_sync_enable(struct tb_port *port)
149{
150 return tb_port_tmu_time_sync(port, false);
151}
152
153static int tb_switch_tmu_set_time_disruption(struct tb_switch *sw, bool set)
154{
155 u32 val, offset, bit;
155 int ret;
156 int ret;
156 u32 val;
157
157
158 ret = tb_sw_read(sw, &val, TB_CFG_SWITCH,
159 sw->tmu.cap + TMU_RTR_CS_0, 1);
158 if (tb_switch_is_usb4(sw)) {
159 offset = sw->tmu.cap + TMU_RTR_CS_0;
160 bit = TMU_RTR_CS_0_TD;
161 } else {
162 offset = sw->cap_vsec_tmu + TB_TIME_VSEC_3_CS_26;
163 bit = TB_TIME_VSEC_3_CS_26_TD;
164 }
165
166 ret = tb_sw_read(sw, &val, TB_CFG_SWITCH, offset, 1);
160 if (ret)
161 return ret;
162
163 if (set)
167 if (ret)
168 return ret;
169
170 if (set)
164 val |= TMU_RTR_CS_0_TD;
171 val |= bit;
165 else
172 else
166 val &= ~TMU_RTR_CS_0_TD;
173 val &= ~bit;
167
174
168 return tb_sw_write(sw, &val, TB_CFG_SWITCH,
169 sw->tmu.cap + TMU_RTR_CS_0, 1);
175 return tb_sw_write(sw, &val, TB_CFG_SWITCH, offset, 1);
170}
171
172/**
173 * tb_switch_tmu_init() - Initialize switch TMU structures
174 * @sw: Switch to initialized
175 *
176 * This function must be called before other TMU related functions to
177 * makes the internal structures are filled in correctly. Does not

--- 388 unchanged lines hidden --- 		176}
177
178/**
179 * tb_switch_tmu_init() - Initialize switch TMU structures
180 * @sw: Switch to initialized
181 *
182 * This function must be called before other TMU related functions to
183 * makes the internal structures are filled in correctly. Does not

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