[PATCH 07/13] ASoC: cs35l56: Move part of cs35l56_init() to shared library

Richard Fitzgerald
2023-05-25T15:07:55Z

Part of the initialization code in cs35l56_init() can be re-used
by the HDA driver so move it into a new function in the shared
library.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
include/sound/cs35l56.h | 1 +
sound/soc/codecs/cs35l56-shared.c | 79 +++++++++++++++++++++++++++++++
sound/soc/codecs/cs35l56.c | 71 +--------------------------
3 files changed, 82 insertions(+), 69 deletions(-)

diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h
index e97c7ccfc051..489a61f84325 100644
--- a/include/sound/cs35l56.h
+++ b/include/sound/cs35l56.h
@@ -283,6 +283,7 @@ int cs35l56_is_fw_reload_needed(struct cs35l56_base *cs35l56_base);
int cs35l56_runtime_suspend_common(struct cs35l56_base *cs35l56_base);
int cs35l56_runtime_resume_common(struct cs35l56_base *cs35l56_base, bool is_soundwire);
void cs35l56_init_cs_dsp(struct cs35l56_base *cs35l56_base, struct cs_dsp *cs_dsp);
+int cs35l56_hw_init(struct cs35l56_base *cs35l56_base);
int cs35l56_get_bclk_freq_id(unsigned int freq);
void cs35l56_fill_supply_names(struct regulator_bulk_data *data);

diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c
index 82e5edef1b3f..e3b935bd9037 100644
--- a/sound/soc/codecs/cs35l56-shared.c
+++ b/sound/soc/codecs/cs35l56-shared.c
@@ -549,6 +549,85 @@ void cs35l56_init_cs_dsp(struct cs35l56_base *cs35l56_base, struct cs_dsp *cs_ds
}
EXPORT_SYMBOL_NS_GPL(cs35l56_init_cs_dsp, SND_SOC_CS35L56_SHARED);

+int cs35l56_hw_init(struct cs35l56_base *cs35l56_base)
+{
+ int ret;
+ unsigned int devid, revid, otpid, secured;
+
+ /*
+ * If the system is not using a reset_gpio then issue a
+ * dummy read to force a wakeup.
+ */
+ if (!cs35l56_base->reset_gpio)
+ regmap_read(cs35l56_base->regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, &devid);
+
+ /* Wait for control port to be ready (datasheet tIRS). */
+ usleep_range(CS35L56_CONTROL_PORT_READY_US,
+ CS35L56_CONTROL_PORT_READY_US + 400);
+
+ /*
+ * The HALO_STATE register is in different locations on Ax and B0
+ * devices so the REVID needs to be determined before waiting for the
+ * firmware to boot.
+ */
+ ret = regmap_read(cs35l56_base->regmap, CS35L56_REVID, &revid);
+ if (ret < 0) {
+ dev_err(cs35l56_base->dev, "Get Revision ID failed\n");
+ return ret;
+ }
+ cs35l56_base->rev = revid & (CS35L56_AREVID_MASK | CS35L56_MTLREVID_MASK);
+
+ ret = cs35l56_wait_for_firmware_boot(cs35l56_base);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(cs35l56_base->regmap, CS35L56_DEVID, &devid);
+ if (ret < 0) {
+ dev_err(cs35l56_base->dev, "Get Device ID failed\n");
+ return ret;
+ }
+ devid &= CS35L56_DEVID_MASK;
+
+ switch (devid) {
+ case 0x35A56:
+ break;
+ default:
+ dev_err(cs35l56_base->dev, "Unknown device %x\n", devid);
+ return ret;
+ }
+
+ ret = regmap_read(cs35l56_base->regmap, CS35L56_DSP_RESTRICT_STS1, &secured);
+ if (ret) {
+ dev_err(cs35l56_base->dev, "Get Secure status failed\n");
+ return ret;
+ }
+
+ /* When any bus is restricted treat the device as secured */
+ if (secured & CS35L56_RESTRICTED_MASK)
+ cs35l56_base->secured = true;
+
+ ret = regmap_read(cs35l56_base->regmap, CS35L56_OTPID, &otpid);
+ if (ret < 0) {
+ dev_err(cs35l56_base->dev, "Get OTP ID failed\n");
+ return ret;
+ }
+
+ dev_info(cs35l56_base->dev, "Cirrus Logic CS35L56%s Rev %02X OTP%d\n",
+ cs35l56_base->secured ? "s" : "", cs35l56_base->rev, otpid);
+
+ /* Wake source and *_BLOCKED interrupts default to unmasked, so mask them */
+ regmap_write(cs35l56_base->regmap, CS35L56_IRQ1_MASK_20, 0xffffffff);
+ regmap_update_bits(cs35l56_base->regmap, CS35L56_IRQ1_MASK_1,
+ CS35L56_AMP_SHORT_ERR_EINT1_MASK,
+ 0);
+ regmap_update_bits(cs35l56_base->regmap, CS35L56_IRQ1_MASK_8,
+ CS35L56_TEMP_ERR_EINT1_MASK,
+ 0);
+
+ return 0;
+}
+EXPORT_SYMBOL_NS_GPL(cs35l56_hw_init, SND_SOC_CS35L56_SHARED);
+
static const u32 cs35l56_bclk_valid_for_pll_freq_table[] = {
[0x0C] = 128000,
[0x0F] = 256000,
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index 8b9b5822d515..f472bde6d21a 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -1130,7 +1130,6 @@ EXPORT_SYMBOL_NS_GPL(cs35l56_common_probe, SND_SOC_CS35L56_CORE);
int cs35l56_init(struct cs35l56_private *cs35l56)
{
int ret;
- unsigned int devid, revid, otpid, secured;

/*
* Check whether the actions associated with soft reset or one time
@@ -1147,66 +1146,9 @@ int cs35l56_init(struct cs35l56_private *cs35l56)
pm_runtime_set_active(cs35l56->base.dev);
pm_runtime_enable(cs35l56->base.dev);

- /*
- * If the system is not using a reset_gpio then issue a
- * dummy read to force a wakeup.
- */
- if (!cs35l56->base.reset_gpio)
- regmap_read(cs35l56->base.regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, &devid);
-
- /* Wait for control port to be ready (datasheet tIRS). */
- usleep_range(CS35L56_CONTROL_PORT_READY_US,
- CS35L56_CONTROL_PORT_READY_US + 400);
-
- /*
- * The HALO_STATE register is in different locations on Ax and B0
- * devices so the REVID needs to be determined before waiting for the
- * firmware to boot.
- */
- ret = regmap_read(cs35l56->base.regmap, CS35L56_REVID, &revid);
- if (ret < 0) {
- dev_err(cs35l56->base.dev, "Get Revision ID failed\n");
+ ret = cs35l56_hw_init(&cs35l56->base);
+ if (ret < 0)
return ret;
- }
- cs35l56->base.rev = revid & (CS35L56_AREVID_MASK | CS35L56_MTLREVID_MASK);
-
- ret = cs35l56_wait_for_firmware_boot(&cs35l56->base);
- if (ret)
- return ret;
-
- ret = regmap_read(cs35l56->base.regmap, CS35L56_DEVID, &devid);
- if (ret < 0) {
- dev_err(cs35l56->base.dev, "Get Device ID failed\n");
- return ret;
- }
- devid &= CS35L56_DEVID_MASK;
-
- switch (devid) {
- case 0x35A56:
- break;
- default:
- dev_err(cs35l56->base.dev, "Unknown device %x\n", devid);
- return ret;
- }
-
- ret = regmap_read(cs35l56->base.regmap, CS35L56_DSP_RESTRICT_STS1, &secured);
- if (ret) {
- dev_err(cs35l56->base.dev, "Get Secure status failed\n");
- return ret;
- }
-
- /* When any bus is restricted treat the device as secured */
- if (secured & CS35L56_RESTRICTED_MASK)
- cs35l56->base.secured = true;
-
- ret = regmap_read(cs35l56->base.regmap, CS35L56_OTPID, &otpid);
- if (ret < 0) {
- dev_err(cs35l56->base.dev, "Get OTP ID failed\n");
- return ret;
- }
-
- dev_info(cs35l56->base.dev, "Cirrus Logic CS35L56%s Rev %02X OTP%d\n",
- cs35l56->base.secured ? "s" : "", cs35l56->base.rev, otpid);

/* Populate the DSP information with the revision and security state */
cs35l56->dsp.part = devm_kasprintf(cs35l56->base.dev, GFP_KERNEL, "cs35l56%s-%02x",
@@ -1214,15 +1156,6 @@ int cs35l56_init(struct cs35l56_private *cs35l56)
if (!cs35l56->dsp.part)
return -ENOMEM;

- /* Wake source and *_BLOCKED interrupts default to unmasked, so mask them */
- regmap_write(cs35l56->base.regmap, CS35L56_IRQ1_MASK_20, 0xffffffff);
- regmap_update_bits(cs35l56->base.regmap, CS35L56_IRQ1_MASK_1,
- CS35L56_AMP_SHORT_ERR_EINT1_MASK,
- 0);
- regmap_update_bits(cs35l56->base.regmap, CS35L56_IRQ1_MASK_8,
- CS35L56_TEMP_ERR_EINT1_MASK,
- 0);
-
if (!cs35l56->base.reset_gpio) {
dev_dbg(cs35l56->base.dev, "No reset gpio: using soft reset\n");
cs35l56->soft_resetting = true;
--
2.30.2