| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Tegra124 DFLL FCPU clock source driver |
| * |
| * Copyright (C) 2012-2019 NVIDIA Corporation. All rights reserved. |
| * |
| * Aleksandr Frid <afrid@nvidia.com> |
| * Paul Walmsley <pwalmsley@nvidia.com> |
| */ |
| |
| #include <linux/cpu.h> |
| #include <linux/err.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/of_device.h> |
| #include <linux/platform_device.h> |
| #include <linux/regulator/consumer.h> |
| #include <soc/tegra/fuse.h> |
| |
| #include "clk.h" |
| #include "clk-dfll.h" |
| #include "cvb.h" |
| |
| struct dfll_fcpu_data { |
| const unsigned long *cpu_max_freq_table; |
| unsigned int cpu_max_freq_table_size; |
| const struct cvb_table *cpu_cvb_tables; |
| unsigned int cpu_cvb_tables_size; |
| }; |
| |
| /* Maximum CPU frequency, indexed by CPU speedo id */ |
| static const unsigned long tegra124_cpu_max_freq_table[] = { |
| [0] = 2014500000UL, |
| [1] = 2320500000UL, |
| [2] = 2116500000UL, |
| [3] = 2524500000UL, |
| }; |
| |
| static const struct cvb_table tegra124_cpu_cvb_tables[] = { |
| { |
| .speedo_id = -1, |
| .process_id = -1, |
| .min_millivolts = 900, |
| .max_millivolts = 1260, |
| .speedo_scale = 100, |
| .voltage_scale = 1000, |
| .entries = { |
| { 204000000UL, { 1112619, -29295, 402 } }, |
| { 306000000UL, { 1150460, -30585, 402 } }, |
| { 408000000UL, { 1190122, -31865, 402 } }, |
| { 510000000UL, { 1231606, -33155, 402 } }, |
| { 612000000UL, { 1274912, -34435, 402 } }, |
| { 714000000UL, { 1320040, -35725, 402 } }, |
| { 816000000UL, { 1366990, -37005, 402 } }, |
| { 918000000UL, { 1415762, -38295, 402 } }, |
| { 1020000000UL, { 1466355, -39575, 402 } }, |
| { 1122000000UL, { 1518771, -40865, 402 } }, |
| { 1224000000UL, { 1573009, -42145, 402 } }, |
| { 1326000000UL, { 1629068, -43435, 402 } }, |
| { 1428000000UL, { 1686950, -44715, 402 } }, |
| { 1530000000UL, { 1746653, -46005, 402 } }, |
| { 1632000000UL, { 1808179, -47285, 402 } }, |
| { 1734000000UL, { 1871526, -48575, 402 } }, |
| { 1836000000UL, { 1936696, -49855, 402 } }, |
| { 1938000000UL, { 2003687, -51145, 402 } }, |
| { 2014500000UL, { 2054787, -52095, 402 } }, |
| { 2116500000UL, { 2124957, -53385, 402 } }, |
| { 2218500000UL, { 2196950, -54665, 402 } }, |
| { 2320500000UL, { 2270765, -55955, 402 } }, |
| { 2422500000UL, { 2346401, -57235, 402 } }, |
| { 2524500000UL, { 2437299, -58535, 402 } }, |
| { 0UL, { 0, 0, 0 } }, |
| }, |
| .cpu_dfll_data = { |
| .tune0_low = 0x005020ff, |
| .tune0_high = 0x005040ff, |
| .tune1 = 0x00000060, |
| } |
| }, |
| }; |
| |
| static const unsigned long tegra210_cpu_max_freq_table[] = { |
| [0] = 1912500000UL, |
| [1] = 1912500000UL, |
| [2] = 2218500000UL, |
| [3] = 1785000000UL, |
| [4] = 1632000000UL, |
| [5] = 1912500000UL, |
| [6] = 2014500000UL, |
| [7] = 1734000000UL, |
| [8] = 1683000000UL, |
| [9] = 1555500000UL, |
| [10] = 1504500000UL, |
| }; |
| |
| #define CPU_CVB_TABLE \ |
| .speedo_scale = 100, \ |
| .voltage_scale = 1000, \ |
| .entries = { \ |
| { 204000000UL, { 1007452, -23865, 370 } }, \ |
| { 306000000UL, { 1052709, -24875, 370 } }, \ |
| { 408000000UL, { 1099069, -25895, 370 } }, \ |
| { 510000000UL, { 1146534, -26905, 370 } }, \ |
| { 612000000UL, { 1195102, -27915, 370 } }, \ |
| { 714000000UL, { 1244773, -28925, 370 } }, \ |
| { 816000000UL, { 1295549, -29935, 370 } }, \ |
| { 918000000UL, { 1347428, -30955, 370 } }, \ |
| { 1020000000UL, { 1400411, -31965, 370 } }, \ |
| { 1122000000UL, { 1454497, -32975, 370 } }, \ |
| { 1224000000UL, { 1509687, -33985, 370 } }, \ |
| { 1326000000UL, { 1565981, -35005, 370 } }, \ |
| { 1428000000UL, { 1623379, -36015, 370 } }, \ |
| { 1530000000UL, { 1681880, -37025, 370 } }, \ |
| { 1632000000UL, { 1741485, -38035, 370 } }, \ |
| { 1734000000UL, { 1802194, -39055, 370 } }, \ |
| { 1836000000UL, { 1864006, -40065, 370 } }, \ |
| { 1912500000UL, { 1910780, -40815, 370 } }, \ |
| { 2014500000UL, { 1227000, 0, 0 } }, \ |
| { 2218500000UL, { 1227000, 0, 0 } }, \ |
| { 0UL, { 0, 0, 0 } }, \ |
| } |
| |
| #define CPU_CVB_TABLE_XA \ |
| .speedo_scale = 100, \ |
| .voltage_scale = 1000, \ |
| .entries = { \ |
| { 204000000UL, { 1250024, -39785, 565 } }, \ |
| { 306000000UL, { 1297556, -41145, 565 } }, \ |
| { 408000000UL, { 1346718, -42505, 565 } }, \ |
| { 510000000UL, { 1397511, -43855, 565 } }, \ |
| { 612000000UL, { 1449933, -45215, 565 } }, \ |
| { 714000000UL, { 1503986, -46575, 565 } }, \ |
| { 816000000UL, { 1559669, -47935, 565 } }, \ |
| { 918000000UL, { 1616982, -49295, 565 } }, \ |
| { 1020000000UL, { 1675926, -50645, 565 } }, \ |
| { 1122000000UL, { 1736500, -52005, 565 } }, \ |
| { 1224000000UL, { 1798704, -53365, 565 } }, \ |
| { 1326000000UL, { 1862538, -54725, 565 } }, \ |
| { 1428000000UL, { 1928003, -56085, 565 } }, \ |
| { 1530000000UL, { 1995097, -57435, 565 } }, \ |
| { 1606500000UL, { 2046149, -58445, 565 } }, \ |
| { 1632000000UL, { 2063822, -58795, 565 } }, \ |
| { 0UL, { 0, 0, 0 } }, \ |
| } |
| |
| #define CPU_CVB_TABLE_EUCM1 \ |
| .speedo_scale = 100, \ |
| .voltage_scale = 1000, \ |
| .entries = { \ |
| { 204000000UL, { 734429, 0, 0 } }, \ |
| { 306000000UL, { 768191, 0, 0 } }, \ |
| { 408000000UL, { 801953, 0, 0 } }, \ |
| { 510000000UL, { 835715, 0, 0 } }, \ |
| { 612000000UL, { 869477, 0, 0 } }, \ |
| { 714000000UL, { 903239, 0, 0 } }, \ |
| { 816000000UL, { 937001, 0, 0 } }, \ |
| { 918000000UL, { 970763, 0, 0 } }, \ |
| { 1020000000UL, { 1004525, 0, 0 } }, \ |
| { 1122000000UL, { 1038287, 0, 0 } }, \ |
| { 1224000000UL, { 1072049, 0, 0 } }, \ |
| { 1326000000UL, { 1105811, 0, 0 } }, \ |
| { 1428000000UL, { 1130000, 0, 0 } }, \ |
| { 1555500000UL, { 1130000, 0, 0 } }, \ |
| { 1632000000UL, { 1170000, 0, 0 } }, \ |
| { 1734000000UL, { 1227500, 0, 0 } }, \ |
| { 0UL, { 0, 0, 0 } }, \ |
| } |
| |
| #define CPU_CVB_TABLE_EUCM2 \ |
| .speedo_scale = 100, \ |
| .voltage_scale = 1000, \ |
| .entries = { \ |
| { 204000000UL, { 742283, 0, 0 } }, \ |
| { 306000000UL, { 776249, 0, 0 } }, \ |
| { 408000000UL, { 810215, 0, 0 } }, \ |
| { 510000000UL, { 844181, 0, 0 } }, \ |
| { 612000000UL, { 878147, 0, 0 } }, \ |
| { 714000000UL, { 912113, 0, 0 } }, \ |
| { 816000000UL, { 946079, 0, 0 } }, \ |
| { 918000000UL, { 980045, 0, 0 } }, \ |
| { 1020000000UL, { 1014011, 0, 0 } }, \ |
| { 1122000000UL, { 1047977, 0, 0 } }, \ |
| { 1224000000UL, { 1081943, 0, 0 } }, \ |
| { 1326000000UL, { 1090000, 0, 0 } }, \ |
| { 1479000000UL, { 1090000, 0, 0 } }, \ |
| { 1555500000UL, { 1162000, 0, 0 } }, \ |
| { 1683000000UL, { 1195000, 0, 0 } }, \ |
| { 0UL, { 0, 0, 0 } }, \ |
| } |
| |
| #define CPU_CVB_TABLE_EUCM2_JOINT_RAIL \ |
| .speedo_scale = 100, \ |
| .voltage_scale = 1000, \ |
| .entries = { \ |
| { 204000000UL, { 742283, 0, 0 } }, \ |
| { 306000000UL, { 776249, 0, 0 } }, \ |
| { 408000000UL, { 810215, 0, 0 } }, \ |
| { 510000000UL, { 844181, 0, 0 } }, \ |
| { 612000000UL, { 878147, 0, 0 } }, \ |
| { 714000000UL, { 912113, 0, 0 } }, \ |
| { 816000000UL, { 946079, 0, 0 } }, \ |
| { 918000000UL, { 980045, 0, 0 } }, \ |
| { 1020000000UL, { 1014011, 0, 0 } }, \ |
| { 1122000000UL, { 1047977, 0, 0 } }, \ |
| { 1224000000UL, { 1081943, 0, 0 } }, \ |
| { 1326000000UL, { 1090000, 0, 0 } }, \ |
| { 1479000000UL, { 1090000, 0, 0 } }, \ |
| { 1504500000UL, { 1120000, 0, 0 } }, \ |
| { 0UL, { 0, 0, 0 } }, \ |
| } |
| |
| #define CPU_CVB_TABLE_ODN \ |
| .speedo_scale = 100, \ |
| .voltage_scale = 1000, \ |
| .entries = { \ |
| { 204000000UL, { 721094, 0, 0 } }, \ |
| { 306000000UL, { 754040, 0, 0 } }, \ |
| { 408000000UL, { 786986, 0, 0 } }, \ |
| { 510000000UL, { 819932, 0, 0 } }, \ |
| { 612000000UL, { 852878, 0, 0 } }, \ |
| { 714000000UL, { 885824, 0, 0 } }, \ |
| { 816000000UL, { 918770, 0, 0 } }, \ |
| { 918000000UL, { 915716, 0, 0 } }, \ |
| { 1020000000UL, { 984662, 0, 0 } }, \ |
| { 1122000000UL, { 1017608, 0, 0 } }, \ |
| { 1224000000UL, { 1050554, 0, 0 } }, \ |
| { 1326000000UL, { 1083500, 0, 0 } }, \ |
| { 1428000000UL, { 1116446, 0, 0 } }, \ |
| { 1581000000UL, { 1130000, 0, 0 } }, \ |
| { 1683000000UL, { 1168000, 0, 0 } }, \ |
| { 1785000000UL, { 1227500, 0, 0 } }, \ |
| { 0UL, { 0, 0, 0 } }, \ |
| } |
| |
| static struct cvb_table tegra210_cpu_cvb_tables[] = { |
| { |
| .speedo_id = 10, |
| .process_id = 0, |
| .min_millivolts = 840, |
| .max_millivolts = 1120, |
| CPU_CVB_TABLE_EUCM2_JOINT_RAIL, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 10, |
| .process_id = 1, |
| .min_millivolts = 840, |
| .max_millivolts = 1120, |
| CPU_CVB_TABLE_EUCM2_JOINT_RAIL, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 9, |
| .process_id = 0, |
| .min_millivolts = 900, |
| .max_millivolts = 1162, |
| CPU_CVB_TABLE_EUCM2, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| } |
| }, |
| { |
| .speedo_id = 9, |
| .process_id = 1, |
| .min_millivolts = 900, |
| .max_millivolts = 1162, |
| CPU_CVB_TABLE_EUCM2, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| } |
| }, |
| { |
| .speedo_id = 8, |
| .process_id = 0, |
| .min_millivolts = 900, |
| .max_millivolts = 1195, |
| CPU_CVB_TABLE_EUCM2, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| } |
| }, |
| { |
| .speedo_id = 8, |
| .process_id = 1, |
| .min_millivolts = 900, |
| .max_millivolts = 1195, |
| CPU_CVB_TABLE_EUCM2, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| } |
| }, |
| { |
| .speedo_id = 7, |
| .process_id = 0, |
| .min_millivolts = 841, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE_EUCM1, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 7, |
| .process_id = 1, |
| .min_millivolts = 841, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE_EUCM1, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 6, |
| .process_id = 0, |
| .min_millivolts = 870, |
| .max_millivolts = 1150, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| } |
| }, |
| { |
| .speedo_id = 6, |
| .process_id = 1, |
| .min_millivolts = 870, |
| .max_millivolts = 1150, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune1 = 0x25501d0, |
| } |
| }, |
| { |
| .speedo_id = 5, |
| .process_id = 0, |
| .min_millivolts = 818, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 5, |
| .process_id = 1, |
| .min_millivolts = 818, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x25501d0, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 4, |
| .process_id = -1, |
| .min_millivolts = 918, |
| .max_millivolts = 1113, |
| CPU_CVB_TABLE_XA, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune1 = 0x17711BD, |
| } |
| }, |
| { |
| .speedo_id = 3, |
| .process_id = 0, |
| .min_millivolts = 825, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE_ODN, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 3, |
| .process_id = 1, |
| .min_millivolts = 825, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE_ODN, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x25501d0, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 2, |
| .process_id = 0, |
| .min_millivolts = 870, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| } |
| }, |
| { |
| .speedo_id = 2, |
| .process_id = 1, |
| .min_millivolts = 870, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune1 = 0x25501d0, |
| } |
| }, |
| { |
| .speedo_id = 1, |
| .process_id = 0, |
| .min_millivolts = 837, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 1, |
| .process_id = 1, |
| .min_millivolts = 837, |
| .max_millivolts = 1227, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x25501d0, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 0, |
| .process_id = 0, |
| .min_millivolts = 850, |
| .max_millivolts = 1170, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x20091d9, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| { |
| .speedo_id = 0, |
| .process_id = 1, |
| .min_millivolts = 850, |
| .max_millivolts = 1170, |
| CPU_CVB_TABLE, |
| .cpu_dfll_data = { |
| .tune0_low = 0xffead0ff, |
| .tune0_high = 0xffead0ff, |
| .tune1 = 0x25501d0, |
| .tune_high_min_millivolts = 864, |
| } |
| }, |
| }; |
| |
| static const struct dfll_fcpu_data tegra124_dfll_fcpu_data = { |
| .cpu_max_freq_table = tegra124_cpu_max_freq_table, |
| .cpu_max_freq_table_size = ARRAY_SIZE(tegra124_cpu_max_freq_table), |
| .cpu_cvb_tables = tegra124_cpu_cvb_tables, |
| .cpu_cvb_tables_size = ARRAY_SIZE(tegra124_cpu_cvb_tables) |
| }; |
| |
| static const struct dfll_fcpu_data tegra210_dfll_fcpu_data = { |
| .cpu_max_freq_table = tegra210_cpu_max_freq_table, |
| .cpu_max_freq_table_size = ARRAY_SIZE(tegra210_cpu_max_freq_table), |
| .cpu_cvb_tables = tegra210_cpu_cvb_tables, |
| .cpu_cvb_tables_size = ARRAY_SIZE(tegra210_cpu_cvb_tables), |
| }; |
| |
| static const struct of_device_id tegra124_dfll_fcpu_of_match[] = { |
| { |
| .compatible = "nvidia,tegra124-dfll", |
| .data = &tegra124_dfll_fcpu_data, |
| }, |
| { |
| .compatible = "nvidia,tegra210-dfll", |
| .data = &tegra210_dfll_fcpu_data |
| }, |
| { }, |
| }; |
| |
| static void get_alignment_from_dt(struct device *dev, |
| struct rail_alignment *align) |
| { |
| if (of_property_read_u32(dev->of_node, |
| "nvidia,pwm-voltage-step-microvolts", |
| &align->step_uv)) |
| align->step_uv = 0; |
| |
| if (of_property_read_u32(dev->of_node, |
| "nvidia,pwm-min-microvolts", |
| &align->offset_uv)) |
| align->offset_uv = 0; |
| } |
| |
| static int get_alignment_from_regulator(struct device *dev, |
| struct rail_alignment *align) |
| { |
| struct regulator *reg = regulator_get(dev, "vdd-cpu"); |
| |
| if (IS_ERR(reg)) |
| return PTR_ERR(reg); |
| |
| align->offset_uv = regulator_list_voltage(reg, 0); |
| align->step_uv = regulator_get_linear_step(reg); |
| |
| regulator_put(reg); |
| |
| return 0; |
| } |
| |
| static int tegra124_dfll_fcpu_probe(struct platform_device *pdev) |
| { |
| int process_id, speedo_id, speedo_value, err; |
| struct tegra_dfll_soc_data *soc; |
| const struct dfll_fcpu_data *fcpu_data; |
| struct rail_alignment align; |
| |
| fcpu_data = of_device_get_match_data(&pdev->dev); |
| if (!fcpu_data) |
| return -ENODEV; |
| |
| process_id = tegra_sku_info.cpu_process_id; |
| speedo_id = tegra_sku_info.cpu_speedo_id; |
| speedo_value = tegra_sku_info.cpu_speedo_value; |
| |
| if (speedo_id >= fcpu_data->cpu_max_freq_table_size) { |
| dev_err(&pdev->dev, "unknown max CPU freq for speedo_id=%d\n", |
| speedo_id); |
| return -ENODEV; |
| } |
| |
| soc = devm_kzalloc(&pdev->dev, sizeof(*soc), GFP_KERNEL); |
| if (!soc) |
| return -ENOMEM; |
| |
| soc->dev = get_cpu_device(0); |
| if (!soc->dev) { |
| dev_err(&pdev->dev, "no CPU0 device\n"); |
| return -ENODEV; |
| } |
| |
| if (of_property_read_bool(pdev->dev.of_node, "nvidia,pwm-to-pmic")) { |
| get_alignment_from_dt(&pdev->dev, &align); |
| } else { |
| err = get_alignment_from_regulator(&pdev->dev, &align); |
| if (err) |
| return err; |
| } |
| |
| soc->max_freq = fcpu_data->cpu_max_freq_table[speedo_id]; |
| |
| soc->cvb = tegra_cvb_add_opp_table(soc->dev, fcpu_data->cpu_cvb_tables, |
| fcpu_data->cpu_cvb_tables_size, |
| &align, process_id, speedo_id, |
| speedo_value, soc->max_freq); |
| soc->alignment = align; |
| |
| if (IS_ERR(soc->cvb)) { |
| dev_err(&pdev->dev, "couldn't add OPP table: %ld\n", |
| PTR_ERR(soc->cvb)); |
| return PTR_ERR(soc->cvb); |
| } |
| |
| err = tegra_dfll_register(pdev, soc); |
| if (err < 0) { |
| tegra_cvb_remove_opp_table(soc->dev, soc->cvb, soc->max_freq); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static void tegra124_dfll_fcpu_remove(struct platform_device *pdev) |
| { |
| struct tegra_dfll_soc_data *soc; |
| |
| /* |
| * Note that exiting early here is dangerous as after this function |
| * returns *soc is freed. |
| */ |
| soc = tegra_dfll_unregister(pdev); |
| if (IS_ERR(soc)) |
| return; |
| |
| tegra_cvb_remove_opp_table(soc->dev, soc->cvb, soc->max_freq); |
| } |
| |
| static const struct dev_pm_ops tegra124_dfll_pm_ops = { |
| SET_RUNTIME_PM_OPS(tegra_dfll_runtime_suspend, |
| tegra_dfll_runtime_resume, NULL) |
| SET_SYSTEM_SLEEP_PM_OPS(tegra_dfll_suspend, tegra_dfll_resume) |
| }; |
| |
| static struct platform_driver tegra124_dfll_fcpu_driver = { |
| .probe = tegra124_dfll_fcpu_probe, |
| .remove_new = tegra124_dfll_fcpu_remove, |
| .driver = { |
| .name = "tegra124-dfll", |
| .of_match_table = tegra124_dfll_fcpu_of_match, |
| .pm = &tegra124_dfll_pm_ops, |
| }, |
| }; |
| builtin_platform_driver(tegra124_dfll_fcpu_driver); |
