--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// tegra210_mbdrc.c - Tegra210 MBDRC driver
+//
+// Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "tegra210_mbdrc.h"
+#include "tegra210_ope.h"
+
+#define MBDRC_FILTER_REG(reg, id) \
+ ((reg) + ((id) * TEGRA210_MBDRC_FILTER_PARAM_STRIDE))
+
+#define MBDRC_FILTER_REG_DEFAULTS(id) \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_IIR_CFG, id), 0x00000005}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_IN_ATTACK, id), 0x3e48590c}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_IN_RELEASE, id), 0x08414e9f}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_FAST_ATTACK, id), 0x7fffffff}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_IN_THRESHOLD, id), 0x06145082}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_OUT_THRESHOLD, id), 0x060d379b}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_RATIO_1ST, id), 0x0000a000}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_RATIO_2ND, id), 0x00002000}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_RATIO_3RD, id), 0x00000b33}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_RATIO_4TH, id), 0x00000800}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_RATIO_5TH, id), 0x0000019a}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_MAKEUP_GAIN, id), 0x00000002}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_INIT_GAIN, id), 0x00066666}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_GAIN_ATTACK, id), 0x00d9ba0e}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_GAIN_RELEASE, id), 0x3e48590c}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_FAST_RELEASE, id), 0x7ffff26a}, \
+ { MBDRC_FILTER_REG(TEGRA210_MBDRC_CFG_RAM_CTRL, id), 0x4000}
+
+static const struct reg_default tegra210_mbdrc_reg_defaults[] = {
+ { TEGRA210_MBDRC_CFG, 0x0030de51},
+ { TEGRA210_MBDRC_CHANNEL_MASK, 0x00000003},
+ { TEGRA210_MBDRC_FAST_FACTOR, 0x30000800},
+
+ MBDRC_FILTER_REG_DEFAULTS(0),
+ MBDRC_FILTER_REG_DEFAULTS(1),
+ MBDRC_FILTER_REG_DEFAULTS(2),
+};
+
+/* Default MBDRC parameters */
+static const struct tegra210_mbdrc_config mbdrc_init_config = {
+ .mode = 0, /* Bypass */
+ .rms_off = 48,
+ .peak_rms_mode = 1, /* PEAK */
+ .fliter_structure = 0, /* All-pass tree */
+ .shift_ctrl = 30,
+ .frame_size = 32,
+ .channel_mask = 0x3,
+ .fa_factor = 2048,
+ .fr_factor = 14747,
+
+ .band_params[MBDRC_LOW_BAND] = {
+ .band = MBDRC_LOW_BAND,
+ .iir_stages = 5,
+ .in_attack_tc = 1044928780,
+ .in_release_tc = 138497695,
+ .fast_attack_tc = 2147483647,
+ .in_threshold = {130, 80, 20, 6},
+ .out_threshold = {155, 55, 13, 6},
+ .ratio = {40960, 8192, 2867, 2048, 410},
+ .makeup_gain = 4,
+ .gain_init = 419430,
+ .gain_attack_tc = 14268942,
+ .gain_release_tc = 1440547090,
+ .fast_release_tc = 2147480170,
+
+ .biquad_params = {
+ /*
+ * Gains:
+ *
+ * b0, b1, a0,
+ * a1, a2,
+ */
+
+ /* Band-0 */
+ 961046798, -2030431983, 1073741824,
+ 2030431983, -961046798,
+ /* Band-1 */
+ 1030244425, -2099481453, 1073741824,
+ 2099481453, -1030244425,
+ /* Band-2 */
+ 1067169294, -2136327263, 1073741824,
+ 2136327263, -1067169294,
+ /* Band-3 */
+ 434951949, -1306567134, 1073741824,
+ 1306567134, -434951949,
+ /* Band-4 */
+ 780656019, -1605955641, 1073741824,
+ 1605955641, -780656019,
+ /* Band-5 */
+ 1024497031, -1817128152, 1073741824,
+ 1817128152, -1024497031,
+ /* Band-6 */
+ 1073741824, 0, 0,
+ 0, 0,
+ /* Band-7 */
+ 1073741824, 0, 0,
+ 0, 0,
+ }
+ },
+
+ .band_params[MBDRC_MID_BAND] = {
+ .band = MBDRC_MID_BAND,
+ .iir_stages = 5,
+ .in_attack_tc = 1581413104,
+ .in_release_tc = 35494783,
+ .fast_attack_tc = 2147483647,
+ .in_threshold = {130, 50, 30, 6},
+ .out_threshold = {106, 50, 30, 13},
+ .ratio = {40960, 2867, 4096, 2867, 410},
+ .makeup_gain = 6,
+ .gain_init = 419430,
+ .gain_attack_tc = 4766887,
+ .gain_release_tc = 1044928780,
+ .fast_release_tc = 2147480170,
+
+ .biquad_params = {
+ /*
+ * Gains:
+ *
+ * b0, b1, a0,
+ * a1, a2,
+ */
+
+ /* Band-0 */
+ -1005668963, 1073741824, 0,
+ 1005668963, 0,
+ /* Band-1 */
+ 998437058, -2067742187, 1073741824,
+ 2067742187, -998437058,
+ /* Band-2 */
+ 1051963422, -2121153948, 1073741824,
+ 2121153948, -1051963422,
+ /* Band-3 */
+ 434951949, -1306567134, 1073741824,
+ 1306567134, -434951949,
+ /* Band-4 */
+ 780656019, -1605955641, 1073741824,
+ 1605955641, -780656019,
+ /* Band-5 */
+ 1024497031, -1817128152, 1073741824,
+ 1817128152, -1024497031,
+ /* Band-6 */
+ 1073741824, 0, 0,
+ 0, 0,
+ /* Band-7 */
+ 1073741824, 0, 0,
+ 0, 0,
+ }
+ },
+
+ .band_params[MBDRC_HIGH_BAND] = {
+ .band = MBDRC_HIGH_BAND,
+ .iir_stages = 5,
+ .in_attack_tc = 2144750688,
+ .in_release_tc = 70402888,
+ .fast_attack_tc = 2147483647,
+ .in_threshold = {130, 50, 30, 6},
+ .out_threshold = {106, 50, 30, 13},
+ .ratio = {40960, 2867, 4096, 2867, 410},
+ .makeup_gain = 6,
+ .gain_init = 419430,
+ .gain_attack_tc = 4766887,
+ .gain_release_tc = 1044928780,
+ .fast_release_tc = 2147480170,
+
+ .biquad_params = {
+ /*
+ * Gains:
+ *
+ * b0, b1, a0,
+ * a1, a2,
+ */
+
+ /* Band-0 */
+ 1073741824, 0, 0,
+ 0, 0,
+ /* Band-1 */
+ 1073741824, 0, 0,
+ 0, 0,
+ /* Band-2 */
+ 1073741824, 0, 0,
+ 0, 0,
+ /* Band-3 */
+ -619925131, 1073741824, 0,
+ 619925131, 0,
+ /* Band-4 */
+ 606839335, -1455425976, 1073741824,
+ 1455425976, -606839335,
+ /* Band-5 */
+ 917759617, -1724690840, 1073741824,
+ 1724690840, -917759617,
+ /* Band-6 */
+ 1073741824, 0, 0,
+ 0, 0,
+ /* Band-7 */
+ 1073741824, 0, 0,
+ 0, 0,
+ }
+ }
+};
+
+static void tegra210_mbdrc_write_ram(struct regmap *regmap, unsigned int reg_ctrl,
+ unsigned int reg_data, unsigned int ram_offset,
+ unsigned int *data, size_t size)
+{
+ unsigned int val;
+ unsigned int i;
+
+ val = ram_offset & TEGRA210_MBDRC_RAM_CTRL_RAM_ADDR_MASK;
+ val |= TEGRA210_MBDRC_RAM_CTRL_ADDR_INIT_EN;
+ val |= TEGRA210_MBDRC_RAM_CTRL_SEQ_ACCESS_EN;
+ val |= TEGRA210_MBDRC_RAM_CTRL_RW_WRITE;
+
+ regmap_write(regmap, reg_ctrl, val);
+
+ for (i = 0; i < size; i++)
+ regmap_write(regmap, reg_data, data[i]);
+}
+
+static int tegra210_mbdrc_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ unsigned int val;
+
+ regmap_read(ope->mbdrc_regmap, mc->reg, &val);
+
+ ucontrol->value.integer.value[0] = (val >> mc->shift) & mc->max;
+
+ return 0;
+}
+
+static int tegra210_mbdrc_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ unsigned int val = ucontrol->value.integer.value[0];
+ bool change = false;
+
+ val = val << mc->shift;
+
+ regmap_update_bits_check(ope->mbdrc_regmap, mc->reg,
+ (mc->max << mc->shift), val, &change);
+
+ return change ? 1 : 0;
+}
+
+static int tegra210_mbdrc_get_enum(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned int val;
+
+ regmap_read(ope->mbdrc_regmap, e->reg, &val);
+
+ ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask;
+
+ return 0;
+}
+
+static int tegra210_mbdrc_put_enum(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ bool change = false;
+ unsigned int val;
+ unsigned int mask;
+
+ if (ucontrol->value.enumerated.item[0] > e->items - 1)
+ return -EINVAL;
+
+ val = ucontrol->value.enumerated.item[0] << e->shift_l;
+ mask = e->mask << e->shift_l;
+
+ regmap_update_bits_check(ope->mbdrc_regmap, e->reg, mask, val,
+ &change);
+
+ return change ? 1 : 0;
+}
+
+static int tegra210_mbdrc_band_params_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tegra_soc_bytes *params = (void *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ u32 *data = (u32 *)ucontrol->value.bytes.data;
+ u32 regs = params->soc.base;
+ u32 mask = params->soc.mask;
+ u32 shift = params->shift;
+ unsigned int i;
+
+ for (i = 0; i < params->soc.num_regs; i++, regs += cmpnt->val_bytes) {
+ regmap_read(ope->mbdrc_regmap, regs, &data[i]);
+
+ data[i] = ((data[i] & mask) >> shift);
+ }
+
+ return 0;
+}
+
+static int tegra210_mbdrc_band_params_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tegra_soc_bytes *params = (void *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ u32 *data = (u32 *)ucontrol->value.bytes.data;
+ u32 regs = params->soc.base;
+ u32 mask = params->soc.mask;
+ u32 shift = params->shift;
+ bool change = false;
+ unsigned int i;
+
+ for (i = 0; i < params->soc.num_regs; i++, regs += cmpnt->val_bytes) {
+ bool update = false;
+
+ regmap_update_bits_check(ope->mbdrc_regmap, regs, mask,
+ data[i] << shift, &update);
+
+ change |= update;
+ }
+
+ return change ? 1 : 0;
+}
+
+static int tegra210_mbdrc_threshold_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tegra_soc_bytes *params = (void *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ u32 *data = (u32 *)ucontrol->value.bytes.data;
+ u32 regs = params->soc.base;
+ u32 num_regs = params->soc.num_regs;
+ u32 val;
+ unsigned int i;
+
+ for (i = 0; i < num_regs; i += 4, regs += cmpnt->val_bytes) {
+ regmap_read(ope->mbdrc_regmap, regs, &val);
+
+ data[i] = (val & TEGRA210_MBDRC_THRESH_1ST_MASK) >>
+ TEGRA210_MBDRC_THRESH_1ST_SHIFT;
+ data[i + 1] = (val & TEGRA210_MBDRC_THRESH_2ND_MASK) >>
+ TEGRA210_MBDRC_THRESH_2ND_SHIFT;
+ data[i + 2] = (val & TEGRA210_MBDRC_THRESH_3RD_MASK) >>
+ TEGRA210_MBDRC_THRESH_3RD_SHIFT;
+ data[i + 3] = (val & TEGRA210_MBDRC_THRESH_4TH_MASK) >>
+ TEGRA210_MBDRC_THRESH_4TH_SHIFT;
+ }
+
+ return 0;
+}
+
+static int tegra210_mbdrc_threshold_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tegra_soc_bytes *params = (void *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ u32 *data = (u32 *)ucontrol->value.bytes.data;
+ u32 regs = params->soc.base;
+ u32 num_regs = params->soc.num_regs;
+ bool change = false;
+ unsigned int i;
+
+ for (i = 0; i < num_regs; i += 4, regs += cmpnt->val_bytes) {
+ bool update = false;
+
+ data[i] = (((data[i] >> TEGRA210_MBDRC_THRESH_1ST_SHIFT) &
+ TEGRA210_MBDRC_THRESH_1ST_MASK) |
+ ((data[i + 1] >> TEGRA210_MBDRC_THRESH_2ND_SHIFT) &
+ TEGRA210_MBDRC_THRESH_2ND_MASK) |
+ ((data[i + 2] >> TEGRA210_MBDRC_THRESH_3RD_SHIFT) &
+ TEGRA210_MBDRC_THRESH_3RD_MASK) |
+ ((data[i + 3] >> TEGRA210_MBDRC_THRESH_4TH_SHIFT) &
+ TEGRA210_MBDRC_THRESH_4TH_MASK));
+
+ regmap_update_bits_check(ope->mbdrc_regmap, regs, 0xffffffff,
+ data[i], &update);
+
+ change |= update;
+ }
+
+ return change ? 1 : 0;
+}
+
+static int tegra210_mbdrc_biquad_coeffs_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tegra_soc_bytes *params = (void *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ u32 *data = (u32 *)ucontrol->value.bytes.data;
+
+ memset(data, 0, params->soc.num_regs * cmpnt->val_bytes);
+
+ return 0;
+}
+
+static int tegra210_mbdrc_biquad_coeffs_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tegra_soc_bytes *params = (void *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ u32 reg_ctrl = params->soc.base;
+ u32 reg_data = reg_ctrl + cmpnt->val_bytes;
+ u32 *data = (u32 *)ucontrol->value.bytes.data;
+
+ tegra210_mbdrc_write_ram(ope->mbdrc_regmap, reg_ctrl, reg_data,
+ params->shift, data, params->soc.num_regs);
+
+ return 1;
+}
+
+static int tegra210_mbdrc_param_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct soc_bytes *params = (void *)kcontrol->private_value;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+ uinfo->count = params->num_regs * sizeof(u32);
+
+ return 0;
+}
+
+static int tegra210_mbdrc_vol_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ int val;
+
+ regmap_read(ope->mbdrc_regmap, mc->reg, &val);
+
+ ucontrol->value.integer.value[0] =
+ ((val >> mc->shift) - TEGRA210_MBDRC_MASTER_VOL_MIN);
+
+ return 0;
+}
+
+static int tegra210_mbdrc_vol_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ int val = ucontrol->value.integer.value[0];
+ bool change = false;
+
+ val += TEGRA210_MBDRC_MASTER_VOL_MIN;
+
+ regmap_update_bits_check(ope->mbdrc_regmap, mc->reg,
+ mc->max << mc->shift, val << mc->shift,
+ &change);
+
+ regmap_read(ope->mbdrc_regmap, mc->reg, &val);
+
+ return change ? 1 : 0;
+}
+
+static const char * const tegra210_mbdrc_mode_text[] = {
+ "Bypass", "Fullband", "Dualband", "Multiband"
+};
+
+static const struct soc_enum tegra210_mbdrc_mode_enum =
+ SOC_ENUM_SINGLE(TEGRA210_MBDRC_CFG, TEGRA210_MBDRC_CFG_MBDRC_MODE_SHIFT,
+ 4, tegra210_mbdrc_mode_text);
+
+static const char * const tegra210_mbdrc_peak_rms_text[] = {
+ "Peak", "RMS"
+};
+
+static const struct soc_enum tegra210_mbdrc_peak_rms_enum =
+ SOC_ENUM_SINGLE(TEGRA210_MBDRC_CFG, TEGRA210_MBDRC_CFG_PEAK_RMS_SHIFT,
+ 2, tegra210_mbdrc_peak_rms_text);
+
+static const char * const tegra210_mbdrc_filter_structure_text[] = {
+ "All-pass-tree", "Flexible"
+};
+
+static const struct soc_enum tegra210_mbdrc_filter_structure_enum =
+ SOC_ENUM_SINGLE(TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_FILTER_STRUCTURE_SHIFT, 2,
+ tegra210_mbdrc_filter_structure_text);
+
+static const char * const tegra210_mbdrc_frame_size_text[] = {
+ "N1", "N2", "N4", "N8", "N16", "N32", "N64"
+};
+
+static const struct soc_enum tegra210_mbdrc_frame_size_enum =
+ SOC_ENUM_SINGLE(TEGRA210_MBDRC_CFG, TEGRA210_MBDRC_CFG_FRAME_SIZE_SHIFT,
+ 7, tegra210_mbdrc_frame_size_text);
+
+#define TEGRA_MBDRC_BYTES_EXT(xname, xbase, xregs, xshift, xmask, xinfo) \
+ TEGRA_SOC_BYTES_EXT(xname, xbase, xregs, xshift, xmask, \
+ tegra210_mbdrc_band_params_get, \
+ tegra210_mbdrc_band_params_put, \
+ tegra210_mbdrc_param_info)
+
+#define TEGRA_MBDRC_BAND_BYTES_EXT(xname, xbase, xshift, xmask, xinfo) \
+ TEGRA_MBDRC_BYTES_EXT(xname, xbase, TEGRA210_MBDRC_FILTER_COUNT, \
+ xshift, xmask, xinfo)
+
+static const DECLARE_TLV_DB_MINMAX(mdbrc_vol_tlv, -25600, 25500);
+
+static const struct snd_kcontrol_new tegra210_mbdrc_controls[] = {
+ SOC_ENUM_EXT("MBDRC Peak RMS Mode", tegra210_mbdrc_peak_rms_enum,
+ tegra210_mbdrc_get_enum, tegra210_mbdrc_put_enum),
+
+ SOC_ENUM_EXT("MBDRC Filter Structure",
+ tegra210_mbdrc_filter_structure_enum,
+ tegra210_mbdrc_get_enum, tegra210_mbdrc_put_enum),
+
+ SOC_ENUM_EXT("MBDRC Frame Size", tegra210_mbdrc_frame_size_enum,
+ tegra210_mbdrc_get_enum, tegra210_mbdrc_put_enum),
+
+ SOC_ENUM_EXT("MBDRC Mode", tegra210_mbdrc_mode_enum,
+ tegra210_mbdrc_get_enum, tegra210_mbdrc_put_enum),
+
+ SOC_SINGLE_EXT("MBDRC RMS Offset", TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_RMS_OFFSET_SHIFT, 0x1ff, 0,
+ tegra210_mbdrc_get, tegra210_mbdrc_put),
+
+ SOC_SINGLE_EXT("MBDRC Shift Control", TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_SHIFT_CTRL_SHIFT, 0x1f, 0,
+ tegra210_mbdrc_get, tegra210_mbdrc_put),
+
+ SOC_SINGLE_EXT("MBDRC Fast Attack Factor", TEGRA210_MBDRC_FAST_FACTOR,
+ TEGRA210_MBDRC_FAST_FACTOR_ATTACK_SHIFT, 0xffff, 0,
+ tegra210_mbdrc_get, tegra210_mbdrc_put),
+
+ SOC_SINGLE_EXT("MBDRC Fast Release Factor", TEGRA210_MBDRC_FAST_FACTOR,
+ TEGRA210_MBDRC_FAST_FACTOR_RELEASE_SHIFT, 0xffff, 0,
+ tegra210_mbdrc_get, tegra210_mbdrc_put),
+
+ SOC_SINGLE_RANGE_EXT_TLV("MBDRC Master Volume",
+ TEGRA210_MBDRC_MASTER_VOL,
+ TEGRA210_MBDRC_MASTER_VOL_SHIFT,
+ 0, 0x1ff, 0,
+ tegra210_mbdrc_vol_get, tegra210_mbdrc_vol_put,
+ mdbrc_vol_tlv),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC IIR Stages", TEGRA210_MBDRC_IIR_CFG,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_IIR_CFG_NUM_STAGES_SHIFT,
+ TEGRA210_MBDRC_IIR_CFG_NUM_STAGES_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC In Attack Time Const", TEGRA210_MBDRC_IN_ATTACK,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_IN_ATTACK_TC_SHIFT,
+ TEGRA210_MBDRC_IN_ATTACK_TC_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC In Release Time Const", TEGRA210_MBDRC_IN_RELEASE,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_IN_RELEASE_TC_SHIFT,
+ TEGRA210_MBDRC_IN_RELEASE_TC_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Fast Attack Time Const", TEGRA210_MBDRC_FAST_ATTACK,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_FAST_ATTACK_TC_SHIFT,
+ TEGRA210_MBDRC_FAST_ATTACK_TC_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC In Threshold", TEGRA210_MBDRC_IN_THRESHOLD,
+ TEGRA210_MBDRC_FILTER_COUNT * 4, 0, 0xffffffff,
+ tegra210_mbdrc_threshold_get,
+ tegra210_mbdrc_threshold_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Out Threshold", TEGRA210_MBDRC_OUT_THRESHOLD,
+ TEGRA210_MBDRC_FILTER_COUNT * 4, 0, 0xffffffff,
+ tegra210_mbdrc_threshold_get,
+ tegra210_mbdrc_threshold_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Ratio", TEGRA210_MBDRC_RATIO_1ST,
+ TEGRA210_MBDRC_FILTER_COUNT * 5,
+ TEGRA210_MBDRC_RATIO_1ST_SHIFT, TEGRA210_MBDRC_RATIO_1ST_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Makeup Gain", TEGRA210_MBDRC_MAKEUP_GAIN,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_MAKEUP_GAIN_SHIFT,
+ TEGRA210_MBDRC_MAKEUP_GAIN_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Init Gain", TEGRA210_MBDRC_INIT_GAIN,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_INIT_GAIN_SHIFT,
+ TEGRA210_MBDRC_INIT_GAIN_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Attack Gain", TEGRA210_MBDRC_GAIN_ATTACK,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_GAIN_ATTACK_SHIFT,
+ TEGRA210_MBDRC_GAIN_ATTACK_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Release Gain", TEGRA210_MBDRC_GAIN_RELEASE,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_GAIN_RELEASE_SHIFT,
+ TEGRA210_MBDRC_GAIN_RELEASE_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Fast Release Gain",
+ TEGRA210_MBDRC_FAST_RELEASE,
+ TEGRA210_MBDRC_FILTER_COUNT,
+ TEGRA210_MBDRC_FAST_RELEASE_SHIFT,
+ TEGRA210_MBDRC_FAST_RELEASE_MASK,
+ tegra210_mbdrc_band_params_get,
+ tegra210_mbdrc_band_params_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Low Band Biquad Coeffs",
+ TEGRA210_MBDRC_CFG_RAM_CTRL,
+ TEGRA210_MBDRC_MAX_BIQUAD_STAGES * 5, 0, 0xffffffff,
+ tegra210_mbdrc_biquad_coeffs_get,
+ tegra210_mbdrc_biquad_coeffs_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC Mid Band Biquad Coeffs",
+ TEGRA210_MBDRC_CFG_RAM_CTRL +
+ TEGRA210_MBDRC_FILTER_PARAM_STRIDE,
+ TEGRA210_MBDRC_MAX_BIQUAD_STAGES * 5, 0, 0xffffffff,
+ tegra210_mbdrc_biquad_coeffs_get,
+ tegra210_mbdrc_biquad_coeffs_put,
+ tegra210_mbdrc_param_info),
+
+ TEGRA_SOC_BYTES_EXT("MBDRC High Band Biquad Coeffs",
+ TEGRA210_MBDRC_CFG_RAM_CTRL +
+ (TEGRA210_MBDRC_FILTER_PARAM_STRIDE * 2),
+ TEGRA210_MBDRC_MAX_BIQUAD_STAGES * 5, 0, 0xffffffff,
+ tegra210_mbdrc_biquad_coeffs_get,
+ tegra210_mbdrc_biquad_coeffs_put,
+ tegra210_mbdrc_param_info),
+};
+
+static bool tegra210_mbdrc_wr_reg(struct device *dev, unsigned int reg)
+{
+ if (reg >= TEGRA210_MBDRC_IIR_CFG)
+ reg -= ((reg - TEGRA210_MBDRC_IIR_CFG) %
+ (TEGRA210_MBDRC_FILTER_PARAM_STRIDE *
+ TEGRA210_MBDRC_FILTER_COUNT));
+
+ switch (reg) {
+ case TEGRA210_MBDRC_SOFT_RESET:
+ case TEGRA210_MBDRC_CG:
+ case TEGRA210_MBDRC_CFG ... TEGRA210_MBDRC_CFG_RAM_DATA:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool tegra210_mbdrc_rd_reg(struct device *dev, unsigned int reg)
+{
+ if (tegra210_mbdrc_wr_reg(dev, reg))
+ return true;
+
+ if (reg >= TEGRA210_MBDRC_IIR_CFG)
+ reg -= ((reg - TEGRA210_MBDRC_IIR_CFG) %
+ (TEGRA210_MBDRC_FILTER_PARAM_STRIDE *
+ TEGRA210_MBDRC_FILTER_COUNT));
+
+ switch (reg) {
+ case TEGRA210_MBDRC_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool tegra210_mbdrc_volatile_reg(struct device *dev, unsigned int reg)
+{
+ if (reg >= TEGRA210_MBDRC_IIR_CFG)
+ reg -= ((reg - TEGRA210_MBDRC_IIR_CFG) %
+ (TEGRA210_MBDRC_FILTER_PARAM_STRIDE *
+ TEGRA210_MBDRC_FILTER_COUNT));
+
+ switch (reg) {
+ case TEGRA210_MBDRC_SOFT_RESET:
+ case TEGRA210_MBDRC_STATUS:
+ case TEGRA210_MBDRC_CFG_RAM_CTRL:
+ case TEGRA210_MBDRC_CFG_RAM_DATA:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool tegra210_mbdrc_precious_reg(struct device *dev, unsigned int reg)
+{
+ if (reg >= TEGRA210_MBDRC_IIR_CFG)
+ reg -= ((reg - TEGRA210_MBDRC_IIR_CFG) %
+ (TEGRA210_MBDRC_FILTER_PARAM_STRIDE *
+ TEGRA210_MBDRC_FILTER_COUNT));
+
+ switch (reg) {
+ case TEGRA210_MBDRC_CFG_RAM_DATA:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config tegra210_mbdrc_regmap_cfg = {
+ .name = "mbdrc",
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = TEGRA210_MBDRC_MAX_REG,
+ .writeable_reg = tegra210_mbdrc_wr_reg,
+ .readable_reg = tegra210_mbdrc_rd_reg,
+ .volatile_reg = tegra210_mbdrc_volatile_reg,
+ .precious_reg = tegra210_mbdrc_precious_reg,
+ .reg_defaults = tegra210_mbdrc_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(tegra210_mbdrc_reg_defaults),
+ .cache_type = REGCACHE_FLAT,
+};
+
+int tegra210_mbdrc_hw_params(struct snd_soc_component *cmpnt)
+{
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ const struct tegra210_mbdrc_config *conf = &mbdrc_init_config;
+ u32 val = 0;
+ unsigned int i;
+
+ regmap_read(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG, &val);
+
+ val &= TEGRA210_MBDRC_CFG_MBDRC_MODE_MASK;
+
+ if (val == TEGRA210_MBDRC_CFG_MBDRC_MODE_BYPASS)
+ return 0;
+
+ for (i = 0; i < MBDRC_NUM_BAND; i++) {
+ const struct tegra210_mbdrc_band_params *params =
+ &conf->band_params[i];
+
+ u32 reg_off = i * TEGRA210_MBDRC_FILTER_PARAM_STRIDE;
+
+ tegra210_mbdrc_write_ram(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_CFG_RAM_CTRL,
+ reg_off + TEGRA210_MBDRC_CFG_RAM_DATA,
+ 0, (u32 *)¶ms->biquad_params[0],
+ TEGRA210_MBDRC_MAX_BIQUAD_STAGES * 5);
+ }
+ return 0;
+}
+
+int tegra210_mbdrc_component_init(struct snd_soc_component *cmpnt)
+{
+ struct tegra210_ope *ope = snd_soc_component_get_drvdata(cmpnt);
+ const struct tegra210_mbdrc_config *conf = &mbdrc_init_config;
+ unsigned int i;
+ u32 val;
+
+ pm_runtime_get_sync(cmpnt->dev);
+
+ /* Initialize MBDRC registers and AHUB RAM with default params */
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_MBDRC_MODE_MASK,
+ conf->mode << TEGRA210_MBDRC_CFG_MBDRC_MODE_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_RMS_OFFSET_MASK,
+ conf->rms_off << TEGRA210_MBDRC_CFG_RMS_OFFSET_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_PEAK_RMS_MASK,
+ conf->peak_rms_mode << TEGRA210_MBDRC_CFG_PEAK_RMS_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_FILTER_STRUCTURE_MASK,
+ conf->fliter_structure <<
+ TEGRA210_MBDRC_CFG_FILTER_STRUCTURE_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_SHIFT_CTRL_MASK,
+ conf->shift_ctrl << TEGRA210_MBDRC_CFG_SHIFT_CTRL_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG,
+ TEGRA210_MBDRC_CFG_FRAME_SIZE_MASK,
+ __ffs(conf->frame_size) <<
+ TEGRA210_MBDRC_CFG_FRAME_SIZE_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_CHANNEL_MASK,
+ TEGRA210_MBDRC_CHANNEL_MASK_MASK,
+ conf->channel_mask << TEGRA210_MBDRC_CHANNEL_MASK_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_FAST_FACTOR,
+ TEGRA210_MBDRC_FAST_FACTOR_ATTACK_MASK,
+ conf->fa_factor << TEGRA210_MBDRC_FAST_FACTOR_ATTACK_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap, TEGRA210_MBDRC_FAST_FACTOR,
+ TEGRA210_MBDRC_FAST_FACTOR_ATTACK_MASK,
+ conf->fr_factor << TEGRA210_MBDRC_FAST_FACTOR_ATTACK_SHIFT);
+
+ for (i = 0; i < MBDRC_NUM_BAND; i++) {
+ const struct tegra210_mbdrc_band_params *params =
+ &conf->band_params[i];
+ u32 reg_off = i * TEGRA210_MBDRC_FILTER_PARAM_STRIDE;
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_IIR_CFG,
+ TEGRA210_MBDRC_IIR_CFG_NUM_STAGES_MASK,
+ params->iir_stages <<
+ TEGRA210_MBDRC_IIR_CFG_NUM_STAGES_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_IN_ATTACK,
+ TEGRA210_MBDRC_IN_ATTACK_TC_MASK,
+ params->in_attack_tc <<
+ TEGRA210_MBDRC_IN_ATTACK_TC_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_IN_RELEASE,
+ TEGRA210_MBDRC_IN_RELEASE_TC_MASK,
+ params->in_release_tc <<
+ TEGRA210_MBDRC_IN_RELEASE_TC_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_FAST_ATTACK,
+ TEGRA210_MBDRC_FAST_ATTACK_TC_MASK,
+ params->fast_attack_tc <<
+ TEGRA210_MBDRC_FAST_ATTACK_TC_SHIFT);
+
+ val = (((params->in_threshold[0] >>
+ TEGRA210_MBDRC_THRESH_1ST_SHIFT) &
+ TEGRA210_MBDRC_THRESH_1ST_MASK) |
+ ((params->in_threshold[1] >>
+ TEGRA210_MBDRC_THRESH_2ND_SHIFT) &
+ TEGRA210_MBDRC_THRESH_2ND_MASK) |
+ ((params->in_threshold[2] >>
+ TEGRA210_MBDRC_THRESH_3RD_SHIFT) &
+ TEGRA210_MBDRC_THRESH_3RD_MASK) |
+ ((params->in_threshold[3] >>
+ TEGRA210_MBDRC_THRESH_4TH_SHIFT) &
+ TEGRA210_MBDRC_THRESH_4TH_MASK));
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_IN_THRESHOLD,
+ 0xffffffff, val);
+
+ val = (((params->out_threshold[0] >>
+ TEGRA210_MBDRC_THRESH_1ST_SHIFT) &
+ TEGRA210_MBDRC_THRESH_1ST_MASK) |
+ ((params->out_threshold[1] >>
+ TEGRA210_MBDRC_THRESH_2ND_SHIFT) &
+ TEGRA210_MBDRC_THRESH_2ND_MASK) |
+ ((params->out_threshold[2] >>
+ TEGRA210_MBDRC_THRESH_3RD_SHIFT) &
+ TEGRA210_MBDRC_THRESH_3RD_MASK) |
+ ((params->out_threshold[3] >>
+ TEGRA210_MBDRC_THRESH_4TH_SHIFT) &
+ TEGRA210_MBDRC_THRESH_4TH_MASK));
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_OUT_THRESHOLD,
+ 0xffffffff, val);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_RATIO_1ST,
+ TEGRA210_MBDRC_RATIO_1ST_MASK,
+ params->ratio[0] << TEGRA210_MBDRC_RATIO_1ST_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_RATIO_2ND,
+ TEGRA210_MBDRC_RATIO_2ND_MASK,
+ params->ratio[1] << TEGRA210_MBDRC_RATIO_2ND_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_RATIO_3RD,
+ TEGRA210_MBDRC_RATIO_3RD_MASK,
+ params->ratio[2] << TEGRA210_MBDRC_RATIO_3RD_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_RATIO_4TH,
+ TEGRA210_MBDRC_RATIO_4TH_MASK,
+ params->ratio[3] << TEGRA210_MBDRC_RATIO_4TH_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_RATIO_5TH,
+ TEGRA210_MBDRC_RATIO_5TH_MASK,
+ params->ratio[4] << TEGRA210_MBDRC_RATIO_5TH_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_MAKEUP_GAIN,
+ TEGRA210_MBDRC_MAKEUP_GAIN_MASK,
+ params->makeup_gain <<
+ TEGRA210_MBDRC_MAKEUP_GAIN_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_INIT_GAIN,
+ TEGRA210_MBDRC_INIT_GAIN_MASK,
+ params->gain_init <<
+ TEGRA210_MBDRC_INIT_GAIN_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_GAIN_ATTACK,
+ TEGRA210_MBDRC_GAIN_ATTACK_MASK,
+ params->gain_attack_tc <<
+ TEGRA210_MBDRC_GAIN_ATTACK_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_GAIN_RELEASE,
+ TEGRA210_MBDRC_GAIN_RELEASE_MASK,
+ params->gain_release_tc <<
+ TEGRA210_MBDRC_GAIN_RELEASE_SHIFT);
+
+ regmap_update_bits(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_FAST_RELEASE,
+ TEGRA210_MBDRC_FAST_RELEASE_MASK,
+ params->fast_release_tc <<
+ TEGRA210_MBDRC_FAST_RELEASE_SHIFT);
+
+ tegra210_mbdrc_write_ram(ope->mbdrc_regmap,
+ reg_off + TEGRA210_MBDRC_CFG_RAM_CTRL,
+ reg_off + TEGRA210_MBDRC_CFG_RAM_DATA, 0,
+ (u32 *)¶ms->biquad_params[0],
+ TEGRA210_MBDRC_MAX_BIQUAD_STAGES * 5);
+ }
+
+ pm_runtime_put_sync(cmpnt->dev);
+
+ snd_soc_add_component_controls(cmpnt, tegra210_mbdrc_controls,
+ ARRAY_SIZE(tegra210_mbdrc_controls));
+
+ return 0;
+}
+
+int tegra210_mbdrc_regmap_init(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct tegra210_ope *ope = dev_get_drvdata(dev);
+ struct device_node *child;
+ struct resource mem;
+ void __iomem *regs;
+ int err;
+
+ child = of_get_child_by_name(dev->of_node, "dynamic-range-compressor");
+ if (!child)
+ return -ENODEV;
+
+ err = of_address_to_resource(child, 0, &mem);
+ of_node_put(child);
+ if (err < 0) {
+ dev_err(dev, "fail to get MBDRC resource\n");
+ return err;
+ }
+
+ mem.flags = IORESOURCE_MEM;
+ regs = devm_ioremap_resource(dev, &mem);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
+
+ ope->mbdrc_regmap = devm_regmap_init_mmio(dev, regs,
+ &tegra210_mbdrc_regmap_cfg);
+ if (IS_ERR(ope->mbdrc_regmap)) {
+ dev_err(dev, "regmap init failed\n");
+ return PTR_ERR(ope->mbdrc_regmap);
+ }
+
+ regcache_cache_only(ope->mbdrc_regmap, true);
+
+ return 0;
+}
git.samba.org / sfrench / cifs-2.6.git / blobdiff