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path: root/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c
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Diffstat (limited to 'drivers/clk/tegra/clk-tegra124-dfll-fcpu.c')
-rw-r--r--drivers/clk/tegra/clk-tegra124-dfll-fcpu.c646
1 files changed, 646 insertions, 0 deletions
diff --git a/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c b/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c
new file mode 100644
index 000000000..5e339ad0a
--- /dev/null
+++ b/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c
@@ -0,0 +1,646 @@
+// 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 int tegra124_dfll_fcpu_remove(struct platform_device *pdev)
+{
+ struct tegra_dfll_soc_data *soc;
+
+ soc = tegra_dfll_unregister(pdev);
+ if (IS_ERR(soc)) {
+ dev_err(&pdev->dev, "failed to unregister DFLL: %ld\n",
+ PTR_ERR(soc));
+ return PTR_ERR(soc);
+ }
+
+ tegra_cvb_remove_opp_table(soc->dev, soc->cvb, soc->max_freq);
+
+ return 0;
+}
+
+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 = 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);