[PATCH v5 02/10] ASoC: cs35l41: Move cs35l41_otp_unpack to shared code

Lucas Tanure
2021-12-16T11:44:06Z

ASoC and HDA will do the same cs35l41_otp_unpack, so move it
to shared code

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
---
include/sound/cs35l41.h | 4 +-
sound/soc/codecs/cs35l41-lib.c | 121 ++++++++++++++++++++++++++++++-
sound/soc/codecs/cs35l41.c | 125 +--------------------------------
3 files changed, 122 insertions(+), 128 deletions(-)

diff --git a/include/sound/cs35l41.h b/include/sound/cs35l41.h
index aac3ffb9bc89..6cf3ef02b26a 100644
--- a/include/sound/cs35l41.h
+++ b/include/sound/cs35l41.h
@@ -534,7 +534,6 @@
#define CS35L41_MAX_CACHE_REG 36
#define CS35L41_OTP_SIZE_WORDS 32
#define CS35L41_NUM_OTP_ELEM 100
-#define CS35L41_NUM_OTP_MAPS 5

#define CS35L41_VALID_PDATA 0x80000000
#define CS35L41_NUM_SUPPLIES 2
@@ -760,8 +759,9 @@ struct cs35l41_otp_map_element_t {
u32 word_offset;
};

-extern const struct cs35l41_otp_map_element_t cs35l41_otp_map_map[CS35L41_NUM_OTP_MAPS];
extern struct regmap_config cs35l41_regmap_i2c;
extern struct regmap_config cs35l41_regmap_spi;

+int cs35l41_otp_unpack(struct device *dev, struct regmap *regmap);
+
#endif /* __CS35L41_H */
diff --git a/sound/soc/codecs/cs35l41-lib.c b/sound/soc/codecs/cs35l41-lib.c
index f19531ebf729..dc5f502447a2 100644
--- a/sound/soc/codecs/cs35l41-lib.c
+++ b/sound/soc/codecs/cs35l41-lib.c
@@ -7,8 +7,11 @@
// Author: David Rhodes <david.rhodes@cirrus.com>
// Author: Lucas Tanure <lucas.tanure@cirrus.com>

+#include <linux/dev_printk.h>
#include <linux/module.h>
#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>

#include <sound/cs35l41.h>

@@ -655,7 +658,7 @@ static const struct cs35l41_otp_packed_element_t otp_map_2[CS35L41_NUM_OTP_ELEM]
{ 0x00017044, 0, 24 }, /*LOT_NUMBER*/
};

-const struct cs35l41_otp_map_element_t cs35l41_otp_map_map[CS35L41_NUM_OTP_MAPS] = {
+static const struct cs35l41_otp_map_element_t cs35l41_otp_map_map[] = {
{
.id = 0x01,
.map = otp_map_1,
@@ -692,7 +695,6 @@ const struct cs35l41_otp_map_element_t cs35l41_otp_map_map[CS35L41_NUM_OTP_MAPS]
.word_offset = 2,
},
};
-EXPORT_SYMBOL_GPL(cs35l41_otp_map_map);

struct regmap_config cs35l41_regmap_i2c = {
.reg_bits = 32,
@@ -727,6 +729,121 @@ struct regmap_config cs35l41_regmap_spi = {
};
EXPORT_SYMBOL_GPL(cs35l41_regmap_spi);

+static const struct cs35l41_otp_map_element_t *cs35l41_find_otp_map(u32 otp_id)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(cs35l41_otp_map_map); i++) {
+ if (cs35l41_otp_map_map[i].id == otp_id)
+ return &cs35l41_otp_map_map[i];
+ }
+
+ return NULL;
+}
+
+int cs35l41_otp_unpack(struct device *dev, struct regmap *regmap)
+{
+ const struct cs35l41_otp_map_element_t *otp_map_match;
+ const struct cs35l41_otp_packed_element_t *otp_map;
+ int bit_offset, word_offset, ret, i;
+ unsigned int bit_sum = 8;
+ u32 otp_val, otp_id_reg;
+ u32 *otp_mem;
+
+ otp_mem = kmalloc_array(CS35L41_OTP_SIZE_WORDS, sizeof(*otp_mem), GFP_KERNEL);
+ if (!otp_mem)
+ return -ENOMEM;
+
+ ret = regmap_read(regmap, CS35L41_OTPID, &otp_id_reg);
+ if (ret) {
+ dev_err(dev, "Read OTP ID failed: %d\n", ret);
+ goto err_otp_unpack;
+ }
+
+ otp_map_match = cs35l41_find_otp_map(otp_id_reg);
+
+ if (!otp_map_match) {
+ dev_err(dev, "OTP Map matching ID %d not found\n", otp_id_reg);
+ ret = -EINVAL;
+ goto err_otp_unpack;
+ }
+
+ ret = regmap_bulk_read(regmap, CS35L41_OTP_MEM0, otp_mem, CS35L41_OTP_SIZE_WORDS);
+ if (ret) {
+ dev_err(dev, "Read OTP Mem failed: %d\n", ret);
+ goto err_otp_unpack;
+ }
+
+ otp_map = otp_map_match->map;
+
+ bit_offset = otp_map_match->bit_offset;
+ word_offset = otp_map_match->word_offset;
+
+ ret = regmap_write(regmap, CS35L41_TEST_KEY_CTL, 0x00000055);
+ if (ret) {
+ dev_err(dev, "Write Unlock key failed 1/2: %d\n", ret);
+ goto err_otp_unpack;
+ }
+ ret = regmap_write(regmap, CS35L41_TEST_KEY_CTL, 0x000000AA);
+ if (ret) {
+ dev_err(dev, "Write Unlock key failed 2/2: %d\n", ret);
+ goto err_otp_unpack;
+ }
+
+ for (i = 0; i < otp_map_match->num_elements; i++) {
+ dev_dbg(dev, "bitoffset= %d, word_offset=%d, bit_sum mod 32=%d\n",
+ bit_offset, word_offset, bit_sum % 32);
+ if (bit_offset + otp_map[i].size - 1 >= 32) {
+ otp_val = (otp_mem[word_offset] &
+ GENMASK(31, bit_offset)) >> bit_offset;
+ otp_val |= (otp_mem[++word_offset] &
+ GENMASK(bit_offset + otp_map[i].size - 33, 0)) <<
+ (32 - bit_offset);
+ bit_offset += otp_map[i].size - 32;
+ } else {
+ otp_val = (otp_mem[word_offset] &
+ GENMASK(bit_offset + otp_map[i].size - 1, bit_offset)
+ ) >> bit_offset;
+ bit_offset += otp_map[i].size;
+ }
+ bit_sum += otp_map[i].size;
+
+ if (bit_offset == 32) {
+ bit_offset = 0;
+ word_offset++;
+ }
+
+ if (otp_map[i].reg != 0) {
+ ret = regmap_update_bits(regmap, otp_map[i].reg,
+ GENMASK(otp_map[i].shift + otp_map[i].size - 1,
+ otp_map[i].shift),
+ otp_val << otp_map[i].shift);
+ if (ret < 0) {
+ dev_err(dev, "Write OTP val failed: %d\n", ret);
+ goto err_otp_unpack;
+ }
+ }
+ }
+
+ ret = regmap_write(regmap, CS35L41_TEST_KEY_CTL, 0x000000CC);
+ if (ret) {
+ dev_err(dev, "Write Lock key failed 1/2: %d\n", ret);
+ goto err_otp_unpack;
+ }
+ ret = regmap_write(regmap, CS35L41_TEST_KEY_CTL, 0x00000033);
+ if (ret) {
+ dev_err(dev, "Write Lock key failed 2/2: %d\n", ret);
+ goto err_otp_unpack;
+ }
+ ret = 0;
+
+err_otp_unpack:
+ kfree(otp_mem);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cs35l41_otp_unpack);
+
MODULE_DESCRIPTION("CS35L41 library");
MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>");
diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c
index 60332eae1162..aa57c59b334d 100644
--- a/sound/soc/codecs/cs35l41.c
+++ b/sound/soc/codecs/cs35l41.c
@@ -14,7 +14,6 @@
#include <linux/moduleparam.h>
#include <linux/of_device.h>
#include <linux/property.h>
-#include <linux/slab.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -420,128 +419,6 @@ static const struct snd_kcontrol_new cs35l41_aud_controls[] = {
WM_ADSP_FW_CONTROL("DSP1", 0),
};

-static const struct cs35l41_otp_map_element_t *cs35l41_find_otp_map(u32 otp_id)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(cs35l41_otp_map_map); i++) {
- if (cs35l41_otp_map_map[i].id == otp_id)
- return &cs35l41_otp_map_map[i];
- }
-
- return NULL;
-}
-
-static int cs35l41_otp_unpack(void *data)
-{
- const struct cs35l41_otp_map_element_t *otp_map_match;
- const struct cs35l41_otp_packed_element_t *otp_map;
- struct cs35l41_private *cs35l41 = data;
- int bit_offset, word_offset, ret, i;
- unsigned int bit_sum = 8;
- u32 otp_val, otp_id_reg;
- u32 *otp_mem;
-
- otp_mem = kmalloc_array(CS35L41_OTP_SIZE_WORDS, sizeof(*otp_mem), GFP_KERNEL);
- if (!otp_mem)
- return -ENOMEM;
-
- ret = regmap_read(cs35l41->regmap, CS35L41_OTPID, &otp_id_reg);
- if (ret < 0) {
- dev_err(cs35l41->dev, "Read OTP ID failed: %d\n", ret);
- goto err_otp_unpack;
- }
-
- otp_map_match = cs35l41_find_otp_map(otp_id_reg);
-
- if (!otp_map_match) {
- dev_err(cs35l41->dev, "OTP Map matching ID %d not found\n",
- otp_id_reg);
- ret = -EINVAL;
- goto err_otp_unpack;
- }
-
- ret = regmap_bulk_read(cs35l41->regmap, CS35L41_OTP_MEM0, otp_mem,
- CS35L41_OTP_SIZE_WORDS);
- if (ret < 0) {
- dev_err(cs35l41->dev, "Read OTP Mem failed: %d\n", ret);
- goto err_otp_unpack;
- }
-
- otp_map = otp_map_match->map;
-
- bit_offset = otp_map_match->bit_offset;
- word_offset = otp_map_match->word_offset;
-
- ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x00000055);
- if (ret < 0) {
- dev_err(cs35l41->dev, "Write Unlock key failed 1/2: %d\n", ret);
- goto err_otp_unpack;
- }
- ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x000000AA);
- if (ret < 0) {
- dev_err(cs35l41->dev, "Write Unlock key failed 2/2: %d\n", ret);
- goto err_otp_unpack;
- }
-
- for (i = 0; i < otp_map_match->num_elements; i++) {
- dev_dbg(cs35l41->dev,
- "bitoffset= %d, word_offset=%d, bit_sum mod 32=%d\n",
- bit_offset, word_offset, bit_sum % 32);
- if (bit_offset + otp_map[i].size - 1 >= 32) {
- otp_val = (otp_mem[word_offset] &
- GENMASK(31, bit_offset)) >>
- bit_offset;
- otp_val |= (otp_mem[++word_offset] &
- GENMASK(bit_offset +
- otp_map[i].size - 33, 0)) <<
- (32 - bit_offset);
- bit_offset += otp_map[i].size - 32;
- } else {
- otp_val = (otp_mem[word_offset] &
- GENMASK(bit_offset + otp_map[i].size - 1,
- bit_offset)) >> bit_offset;
- bit_offset += otp_map[i].size;
- }
- bit_sum += otp_map[i].size;
-
- if (bit_offset == 32) {
- bit_offset = 0;
- word_offset++;
- }
-
- if (otp_map[i].reg != 0) {
- ret = regmap_update_bits(cs35l41->regmap,
- otp_map[i].reg,
- GENMASK(otp_map[i].shift +
- otp_map[i].size - 1,
- otp_map[i].shift),
- otp_val << otp_map[i].shift);
- if (ret < 0) {
- dev_err(cs35l41->dev, "Write OTP val failed: %d\n",
- ret);
- goto err_otp_unpack;
- }
- }
- }
-
- ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x000000CC);
- if (ret < 0) {
- dev_err(cs35l41->dev, "Write Lock key failed 1/2: %d\n", ret);
- goto err_otp_unpack;
- }
- ret = regmap_write(cs35l41->regmap, CS35L41_TEST_KEY_CTL, 0x00000033);
- if (ret < 0) {
- dev_err(cs35l41->dev, "Write Lock key failed 2/2: %d\n", ret);
- goto err_otp_unpack;
- }
- ret = 0;
-
-err_otp_unpack:
- kfree(otp_mem);
- return ret;
-}
-
static irqreturn_t cs35l41_irq(int irq, void *data)
{
struct cs35l41_private *cs35l41 = data;
@@ -1667,7 +1544,7 @@ int cs35l41_probe(struct cs35l41_private *cs35l41,
goto err;
}

- ret = cs35l41_otp_unpack(cs35l41);
+ ret = cs35l41_otp_unpack(cs35l41->dev, cs35l41->regmap);
if (ret < 0) {
dev_err(cs35l41->dev, "OTP Unpack failed: %d\n", ret);
goto err;
--
2.34.1