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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 04:58:46 +07:00
f377d59729
The voltage changing code in this driver is broken and should be removed. The driver sets a single, exact voltage on probe. Unless there is a very good reason for this (which should be documented in comments) constraints like this need to be set via the machine constraints, voltage setting in a driver is expected to be used in cases where the voltage varies at runtime. In addition client drivers should almost never be calling regulator_can_set_voltage(), if the device needs to set a voltage it needs to set the voltage and the regulator core will handle the case where the regulator is fixed voltage. If the driver simply skips setting the voltage if it doesn't have permission then it should just not bother in the first place. Originally authored by Mark Brown <broonie@kernel.org> Remove the min/max voltage data entries per SoC managed by the driver. These aren't needed as we don't try to set voltages any more. Mention in comments the voltages that each regulator expects. Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
119 lines
3.2 KiB
C
119 lines
3.2 KiB
C
/*
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* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "dsi_cfg.h"
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static const char * const dsi_v2_bus_clk_names[] = {
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"core_mmss_clk", "iface_clk", "bus_clk",
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};
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static const struct msm_dsi_config apq8064_dsi_cfg = {
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.io_offset = 0,
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.reg_cfg = {
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.num = 3,
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.regs = {
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{"vdda", 100000, 100}, /* 1.2 V */
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{"avdd", 10000, 100}, /* 3.0 V */
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{"vddio", 100000, 100}, /* 1.8 V */
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},
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},
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.bus_clk_names = dsi_v2_bus_clk_names,
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.num_bus_clks = ARRAY_SIZE(dsi_v2_bus_clk_names),
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};
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static const char * const dsi_6g_bus_clk_names[] = {
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"mdp_core_clk", "iface_clk", "bus_clk", "core_mmss_clk",
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};
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static const struct msm_dsi_config msm8974_apq8084_dsi_cfg = {
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.io_offset = DSI_6G_REG_SHIFT,
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.reg_cfg = {
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.num = 4,
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.regs = {
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{"gdsc", -1, -1},
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{"vdd", 150000, 100}, /* 3.0 V */
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{"vdda", 100000, 100}, /* 1.2 V */
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{"vddio", 100000, 100}, /* 1.8 V */
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},
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},
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.bus_clk_names = dsi_6g_bus_clk_names,
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.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
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};
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static const char * const dsi_8916_bus_clk_names[] = {
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"mdp_core_clk", "iface_clk", "bus_clk",
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};
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static const struct msm_dsi_config msm8916_dsi_cfg = {
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.io_offset = DSI_6G_REG_SHIFT,
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.reg_cfg = {
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.num = 3,
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.regs = {
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{"gdsc", -1, -1},
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{"vdda", 100000, 100}, /* 1.2 V */
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{"vddio", 100000, 100}, /* 1.8 V */
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},
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},
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.bus_clk_names = dsi_8916_bus_clk_names,
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.num_bus_clks = ARRAY_SIZE(dsi_8916_bus_clk_names),
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};
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static const struct msm_dsi_config msm8994_dsi_cfg = {
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.io_offset = DSI_6G_REG_SHIFT,
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.reg_cfg = {
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.num = 7,
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.regs = {
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{"gdsc", -1, -1},
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{"vdda", 100000, 100}, /* 1.25 V */
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{"vddio", 100000, 100}, /* 1.8 V */
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{"vcca", 10000, 100}, /* 1.0 V */
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{"vdd", 100000, 100}, /* 1.8 V */
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{"lab_reg", -1, -1},
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{"ibb_reg", -1, -1},
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},
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},
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.bus_clk_names = dsi_6g_bus_clk_names,
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.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
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};
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static const struct msm_dsi_cfg_handler dsi_cfg_handlers[] = {
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{MSM_DSI_VER_MAJOR_V2, MSM_DSI_V2_VER_MINOR_8064, &apq8064_dsi_cfg},
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{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_0,
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&msm8974_apq8084_dsi_cfg},
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{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1,
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&msm8974_apq8084_dsi_cfg},
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{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_1_1,
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&msm8974_apq8084_dsi_cfg},
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{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_2,
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&msm8974_apq8084_dsi_cfg},
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{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3, &msm8994_dsi_cfg},
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{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V1_3_1, &msm8916_dsi_cfg},
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};
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const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor)
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{
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const struct msm_dsi_cfg_handler *cfg_hnd = NULL;
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int i;
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for (i = ARRAY_SIZE(dsi_cfg_handlers) - 1; i >= 0; i--) {
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if ((dsi_cfg_handlers[i].major == major) &&
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(dsi_cfg_handlers[i].minor == minor)) {
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cfg_hnd = &dsi_cfg_handlers[i];
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break;
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}
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}
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return cfg_hnd;
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}
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