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-rw-r--r--drivers/mfd/twl-core.c190
-rw-r--r--drivers/mfd/twl6040.c92
2 files changed, 252 insertions, 30 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index f0aa4cef9ad0..ed718328eff1 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -47,6 +47,9 @@
#include <linux/i2c.h>
#include <linux/i2c/twl.h>
+/* Register descriptions for audio */
+#include <linux/mfd/twl4030-audio.h>
+
#include "twl-core.h"
/*
@@ -200,6 +203,105 @@ static struct twl_mapping twl4030_map[] = {
{ 2, TWL5031_BASEADD_INTERRUPTS },
};
+static struct reg_default twl4030_49_defaults[] = {
+ /* Audio Registers */
+ { 0x01, 0x00}, /* CODEC_MODE */
+ { 0x02, 0x00}, /* OPTION */
+ /* 0x03 Unused */
+ { 0x04, 0x00}, /* MICBIAS_CTL */
+ { 0x05, 0x00}, /* ANAMICL */
+ { 0x06, 0x00}, /* ANAMICR */
+ { 0x07, 0x00}, /* AVADC_CTL */
+ { 0x08, 0x00}, /* ADCMICSEL */
+ { 0x09, 0x00}, /* DIGMIXING */
+ { 0x0a, 0x0f}, /* ATXL1PGA */
+ { 0x0b, 0x0f}, /* ATXR1PGA */
+ { 0x0c, 0x0f}, /* AVTXL2PGA */
+ { 0x0d, 0x0f}, /* AVTXR2PGA */
+ { 0x0e, 0x00}, /* AUDIO_IF */
+ { 0x0f, 0x00}, /* VOICE_IF */
+ { 0x10, 0x3f}, /* ARXR1PGA */
+ { 0x11, 0x3f}, /* ARXL1PGA */
+ { 0x12, 0x3f}, /* ARXR2PGA */
+ { 0x13, 0x3f}, /* ARXL2PGA */
+ { 0x14, 0x25}, /* VRXPGA */
+ { 0x15, 0x00}, /* VSTPGA */
+ { 0x16, 0x00}, /* VRX2ARXPGA */
+ { 0x17, 0x00}, /* AVDAC_CTL */
+ { 0x18, 0x00}, /* ARX2VTXPGA */
+ { 0x19, 0x32}, /* ARXL1_APGA_CTL*/
+ { 0x1a, 0x32}, /* ARXR1_APGA_CTL*/
+ { 0x1b, 0x32}, /* ARXL2_APGA_CTL*/
+ { 0x1c, 0x32}, /* ARXR2_APGA_CTL*/
+ { 0x1d, 0x00}, /* ATX2ARXPGA */
+ { 0x1e, 0x00}, /* BT_IF */
+ { 0x1f, 0x55}, /* BTPGA */
+ { 0x20, 0x00}, /* BTSTPGA */
+ { 0x21, 0x00}, /* EAR_CTL */
+ { 0x22, 0x00}, /* HS_SEL */
+ { 0x23, 0x00}, /* HS_GAIN_SET */
+ { 0x24, 0x00}, /* HS_POPN_SET */
+ { 0x25, 0x00}, /* PREDL_CTL */
+ { 0x26, 0x00}, /* PREDR_CTL */
+ { 0x27, 0x00}, /* PRECKL_CTL */
+ { 0x28, 0x00}, /* PRECKR_CTL */
+ { 0x29, 0x00}, /* HFL_CTL */
+ { 0x2a, 0x00}, /* HFR_CTL */
+ { 0x2b, 0x05}, /* ALC_CTL */
+ { 0x2c, 0x00}, /* ALC_SET1 */
+ { 0x2d, 0x00}, /* ALC_SET2 */
+ { 0x2e, 0x00}, /* BOOST_CTL */
+ { 0x2f, 0x00}, /* SOFTVOL_CTL */
+ { 0x30, 0x13}, /* DTMF_FREQSEL */
+ { 0x31, 0x00}, /* DTMF_TONEXT1H */
+ { 0x32, 0x00}, /* DTMF_TONEXT1L */
+ { 0x33, 0x00}, /* DTMF_TONEXT2H */
+ { 0x34, 0x00}, /* DTMF_TONEXT2L */
+ { 0x35, 0x79}, /* DTMF_TONOFF */
+ { 0x36, 0x11}, /* DTMF_WANONOFF */
+ { 0x37, 0x00}, /* I2S_RX_SCRAMBLE_H */
+ { 0x38, 0x00}, /* I2S_RX_SCRAMBLE_M */
+ { 0x39, 0x00}, /* I2S_RX_SCRAMBLE_L */
+ { 0x3a, 0x06}, /* APLL_CTL */
+ { 0x3b, 0x00}, /* DTMF_CTL */
+ { 0x3c, 0x44}, /* DTMF_PGA_CTL2 (0x3C) */
+ { 0x3d, 0x69}, /* DTMF_PGA_CTL1 (0x3D) */
+ { 0x3e, 0x00}, /* MISC_SET_1 */
+ { 0x3f, 0x00}, /* PCMBTMUX */
+ /* 0x40 - 0x42 Unused */
+ { 0x43, 0x00}, /* RX_PATH_SEL */
+ { 0x44, 0x32}, /* VDL_APGA_CTL */
+ { 0x45, 0x00}, /* VIBRA_CTL */
+ { 0x46, 0x00}, /* VIBRA_SET */
+ { 0x47, 0x00}, /* VIBRA_PWM_SET */
+ { 0x48, 0x00}, /* ANAMIC_GAIN */
+ { 0x49, 0x00}, /* MISC_SET_2 */
+ /* End of Audio Registers */
+};
+
+static bool twl4030_49_nop_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0:
+ case 3:
+ case 40:
+ case 41:
+ case 42:
+ return false;
+ default:
+ return true;
+ }
+}
+
+static const struct regmap_range twl4030_49_volatile_ranges[] = {
+ regmap_reg_range(TWL4030_BASEADD_TEST, 0xff),
+};
+
+static const struct regmap_access_table twl4030_49_volatile_table = {
+ .yes_ranges = twl4030_49_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(twl4030_49_volatile_ranges),
+};
+
static struct regmap_config twl4030_regmap_config[4] = {
{
/* Address 0x48 */
@@ -212,6 +314,15 @@ static struct regmap_config twl4030_regmap_config[4] = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
+
+ .readable_reg = twl4030_49_nop_reg,
+ .writeable_reg = twl4030_49_nop_reg,
+
+ .volatile_table = &twl4030_49_volatile_table,
+
+ .reg_defaults = twl4030_49_defaults,
+ .num_reg_defaults = ARRAY_SIZE(twl4030_49_defaults),
+ .cache_type = REGCACHE_RBTREE,
},
{
/* Address 0x4a */
@@ -302,35 +413,50 @@ unsigned int twl_rev(void)
EXPORT_SYMBOL(twl_rev);
/**
- * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
+ * twl_get_regmap - Get the regmap associated with the given module
* @mod_no: module number
- * @value: an array of num_bytes+1 containing data to write
- * @reg: register address (just offset will do)
- * @num_bytes: number of bytes to transfer
*
- * Returns the result of operation - 0 is success
+ * Returns the regmap pointer or NULL in case of failure.
*/
-int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
+static struct regmap *twl_get_regmap(u8 mod_no)
{
- int ret;
int sid;
struct twl_client *twl;
if (unlikely(!twl_priv || !twl_priv->ready)) {
pr_err("%s: not initialized\n", DRIVER_NAME);
- return -EPERM;
+ return NULL;
}
if (unlikely(mod_no >= twl_get_last_module())) {
pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
- return -EPERM;
+ return NULL;
}
sid = twl_priv->twl_map[mod_no].sid;
twl = &twl_priv->twl_modules[sid];
- ret = regmap_bulk_write(twl->regmap,
- twl_priv->twl_map[mod_no].base + reg, value,
- num_bytes);
+ return twl->regmap;
+}
+
+/**
+ * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
+ * @mod_no: module number
+ * @value: an array of num_bytes+1 containing data to write
+ * @reg: register address (just offset will do)
+ * @num_bytes: number of bytes to transfer
+ *
+ * Returns the result of operation - 0 is success
+ */
+int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
+{
+ struct regmap *regmap = twl_get_regmap(mod_no);
+ int ret;
+
+ if (!regmap)
+ return -EPERM;
+
+ ret = regmap_bulk_write(regmap, twl_priv->twl_map[mod_no].base + reg,
+ value, num_bytes);
if (ret)
pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n",
@@ -351,25 +477,14 @@ EXPORT_SYMBOL(twl_i2c_write);
*/
int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
{
+ struct regmap *regmap = twl_get_regmap(mod_no);
int ret;
- int sid;
- struct twl_client *twl;
- if (unlikely(!twl_priv || !twl_priv->ready)) {
- pr_err("%s: not initialized\n", DRIVER_NAME);
- return -EPERM;
- }
- if (unlikely(mod_no >= twl_get_last_module())) {
- pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
+ if (!regmap)
return -EPERM;
- }
-
- sid = twl_priv->twl_map[mod_no].sid;
- twl = &twl_priv->twl_modules[sid];
- ret = regmap_bulk_read(twl->regmap,
- twl_priv->twl_map[mod_no].base + reg, value,
- num_bytes);
+ ret = regmap_bulk_read(regmap, twl_priv->twl_map[mod_no].base + reg,
+ value, num_bytes);
if (ret)
pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n",
@@ -379,6 +494,27 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
}
EXPORT_SYMBOL(twl_i2c_read);
+/**
+ * twl_regcache_bypass - Configure the regcache bypass for the regmap associated
+ * with the module
+ * @mod_no: module number
+ * @enable: Regcache bypass state
+ *
+ * Returns 0 else failure.
+ */
+int twl_set_regcache_bypass(u8 mod_no, bool enable)
+{
+ struct regmap *regmap = twl_get_regmap(mod_no);
+
+ if (!regmap)
+ return -EPERM;
+
+ regcache_cache_bypass(regmap, enable);
+
+ return 0;
+}
+EXPORT_SYMBOL(twl_set_regcache_bypass);
+
/*----------------------------------------------------------------------*/
/**
diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index 0779d5ab9ab1..51b6df1a7949 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -44,6 +44,54 @@
#define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1)
#define TWL6040_NUM_SUPPLIES (2)
+static struct reg_default twl6040_defaults[] = {
+ { 0x01, 0x4B }, /* REG_ASICID (ro) */
+ { 0x02, 0x00 }, /* REG_ASICREV (ro) */
+ { 0x03, 0x00 }, /* REG_INTID */
+ { 0x04, 0x00 }, /* REG_INTMR */
+ { 0x05, 0x00 }, /* REG_NCPCTRL */
+ { 0x06, 0x00 }, /* REG_LDOCTL */
+ { 0x07, 0x60 }, /* REG_HPPLLCTL */
+ { 0x08, 0x00 }, /* REG_LPPLLCTL */
+ { 0x09, 0x4A }, /* REG_LPPLLDIV */
+ { 0x0A, 0x00 }, /* REG_AMICBCTL */
+ { 0x0B, 0x00 }, /* REG_DMICBCTL */
+ { 0x0C, 0x00 }, /* REG_MICLCTL */
+ { 0x0D, 0x00 }, /* REG_MICRCTL */
+ { 0x0E, 0x00 }, /* REG_MICGAIN */
+ { 0x0F, 0x1B }, /* REG_LINEGAIN */
+ { 0x10, 0x00 }, /* REG_HSLCTL */
+ { 0x11, 0x00 }, /* REG_HSRCTL */
+ { 0x12, 0x00 }, /* REG_HSGAIN */
+ { 0x13, 0x00 }, /* REG_EARCTL */
+ { 0x14, 0x00 }, /* REG_HFLCTL */
+ { 0x15, 0x00 }, /* REG_HFLGAIN */
+ { 0x16, 0x00 }, /* REG_HFRCTL */
+ { 0x17, 0x00 }, /* REG_HFRGAIN */
+ { 0x18, 0x00 }, /* REG_VIBCTLL */
+ { 0x19, 0x00 }, /* REG_VIBDATL */
+ { 0x1A, 0x00 }, /* REG_VIBCTLR */
+ { 0x1B, 0x00 }, /* REG_VIBDATR */
+ { 0x1C, 0x00 }, /* REG_HKCTL1 */
+ { 0x1D, 0x00 }, /* REG_HKCTL2 */
+ { 0x1E, 0x00 }, /* REG_GPOCTL */
+ { 0x1F, 0x00 }, /* REG_ALB */
+ { 0x20, 0x00 }, /* REG_DLB */
+ /* 0x28, REG_TRIM1 */
+ /* 0x29, REG_TRIM2 */
+ /* 0x2A, REG_TRIM3 */
+ /* 0x2B, REG_HSOTRIM */
+ /* 0x2C, REG_HFOTRIM */
+ { 0x2D, 0x08 }, /* REG_ACCCTL */
+ { 0x2E, 0x00 }, /* REG_STATUS (ro) */
+};
+
+struct reg_default twl6040_patch[] = {
+ /* Select I2C bus access to dual access registers */
+ { TWL6040_REG_ACCCTL, 0x09 },
+};
+
+
static bool twl6040_has_vibra(struct device_node *node)
{
#ifdef CONFIG_OF
@@ -238,6 +286,9 @@ int twl6040_power(struct twl6040 *twl6040, int on)
if (twl6040->power_count++)
goto out;
+ /* Allow writes to the chip */
+ regcache_cache_only(twl6040->regmap, false);
+
if (gpio_is_valid(twl6040->audpwron)) {
/* use automatic power-up sequence */
ret = twl6040_power_up_automatic(twl6040);
@@ -253,6 +304,10 @@ int twl6040_power(struct twl6040 *twl6040, int on)
goto out;
}
}
+
+ /* Sync with the HW */
+ regcache_sync(twl6040->regmap);
+
/* Default PLL configuration after power up */
twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL;
twl6040->sysclk = 19200000;
@@ -279,6 +334,11 @@ int twl6040_power(struct twl6040 *twl6040, int on)
/* use manual power-down sequence */
twl6040_power_down_manual(twl6040);
}
+
+ /* Set regmap to cache only and mark it as dirty */
+ regcache_cache_only(twl6040->regmap, true);
+ regcache_mark_dirty(twl6040->regmap);
+
twl6040->sysclk = 0;
twl6040->mclk = 0;
}
@@ -490,9 +550,24 @@ static bool twl6040_readable_reg(struct device *dev, unsigned int reg)
static bool twl6040_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
- case TWL6040_REG_VIBCTLL:
- case TWL6040_REG_VIBCTLR:
- case TWL6040_REG_INTMR:
+ case TWL6040_REG_ASICID:
+ case TWL6040_REG_ASICREV:
+ case TWL6040_REG_INTID:
+ case TWL6040_REG_LPPLLCTL:
+ case TWL6040_REG_HPPLLCTL:
+ case TWL6040_REG_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool twl6040_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TWL6040_REG_ASICID:
+ case TWL6040_REG_ASICREV:
+ case TWL6040_REG_STATUS:
return false;
default:
return true;
@@ -502,10 +577,15 @@ static bool twl6040_volatile_reg(struct device *dev, unsigned int reg)
static struct regmap_config twl6040_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
+
+ .reg_defaults = twl6040_defaults,
+ .num_reg_defaults = ARRAY_SIZE(twl6040_defaults),
+
.max_register = TWL6040_REG_STATUS, /* 0x2e */
.readable_reg = twl6040_readable_reg,
.volatile_reg = twl6040_volatile_reg,
+ .writeable_reg = twl6040_writeable_reg,
.cache_type = REGCACHE_RBTREE,
};
@@ -624,6 +704,8 @@ static int twl6040_probe(struct i2c_client *client,
/* dual-access registers controlled by I2C only */
twl6040_set_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_I2CSEL);
+ regmap_register_patch(twl6040->regmap, twl6040_patch,
+ ARRAY_SIZE(twl6040_patch));
/*
* The main functionality of twl6040 to provide audio on OMAP4+ systems.
@@ -656,6 +738,10 @@ static int twl6040_probe(struct i2c_client *client,
cell->name = "twl6040-gpo";
children++;
+ /* The chip is powered down so mark regmap to cache only and dirty */
+ regcache_cache_only(twl6040->regmap, true);
+ regcache_mark_dirty(twl6040->regmap);
+
ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
NULL, 0, NULL);
if (ret)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 22:19:56 +0000