1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2021 Adrian Chadd <adrian@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #ifndef __QCOM_CLK_BRANCH2_H__ 29 #define __QCOM_CLK_BRANCH2_H__ 30 31 #include "qcom_clk_freqtbl.h" 32 33 /* halt is 1 */ 34 #define QCOM_CLK_BRANCH2_BRANCH_HALT 0 35 36 /* halt is inverted (ie, 0) */ 37 #define QCOM_CLK_BRANCH2_BRANCH_HALT_INVERTED 1 38 39 /* Don't check the bit, just delay */ 40 #define QCOM_CLK_BRANCH2_BRANCH_HALT_DELAY 2 41 42 /* Don't check the halt bit at all */ 43 #define QCOM_CLK_BRANCH2_BRANCH_HALT_SKIP 3 44 45 /* Flags */ 46 #define QCOM_CLK_BRANCH2_FLAGS_CRITICAL 0x1 47 #define QCOM_CLK_BRANCH2_FLAGS_SET_RATE_PARENT 0x2 48 49 struct qcom_clk_branch2_def { 50 struct clknode_init_def clkdef; 51 52 uint32_t flags; 53 54 uint32_t enable_offset; /* enable register*/ 55 uint32_t enable_shift; /* enable bit shift */ 56 57 uint32_t hwcg_reg; /* hw clock gate register */ 58 uint32_t hwcg_bit; 59 uint32_t halt_reg; /* halt register */ 60 61 uint32_t halt_check_type; 62 bool halt_check_voted; /* whether to delay when waiting */ 63 }; 64 65 extern int qcom_clk_branch2_register(struct clkdom *clkdom, 66 struct qcom_clk_branch2_def *clkdef); 67 68 #endif /* __QCOM_CLK_BRANCH2_H__ */ 69