[PATCH 10/13] ASoC: cs35l56: Make a common function to shutdown the DSP

Richard Fitzgerald
2023-05-25T15:08:05Z

From: Simon Trimmer <simont@opensource.cirrus.com>

Move issuing of a CS35L56_MBOX_CMD_SHUTDOWN command and then waiting for
the DSP to reach CS35L56_HALO_STATE_SHUTDOWN in the register appropriate
for the hardware revision into a common function.

Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
include/sound/cs35l56.h | 1 +
sound/soc/codecs/cs35l56-shared.c | 26 ++++++++++++++++++++++++++
sound/soc/codecs/cs35l56.c | 17 +----------------
3 files changed, 28 insertions(+), 16 deletions(-)

diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h
index ae9e8f55962a..5b32aa7468cb 100644
--- a/include/sound/cs35l56.h
+++ b/include/sound/cs35l56.h
@@ -274,6 +274,7 @@ extern const unsigned int cs35l56_tx_input_values[CS35L56_NUM_INPUT_SRC];

void cs35l56_reread_firmware_registers(struct cs35l56_base *cs35l56_base);
int cs35l56_mbox_send(struct cs35l56_base *cs35l56_base, unsigned int command);
+int cs35l56_firmware_shutdown(struct cs35l56_base *cs35l56_base);
int cs35l56_wait_for_firmware_boot(struct cs35l56_base *cs35l56_base);
void cs35l56_wait_control_port_ready(void);
void cs35l56_wait_min_reset_pulse(void);
diff --git a/sound/soc/codecs/cs35l56-shared.c b/sound/soc/codecs/cs35l56-shared.c
index 7e02d023338c..95ef71c7b8f1 100644
--- a/sound/soc/codecs/cs35l56-shared.c
+++ b/sound/soc/codecs/cs35l56-shared.c
@@ -218,6 +218,32 @@ int cs35l56_mbox_send(struct cs35l56_base *cs35l56_base, unsigned int command)
}
EXPORT_SYMBOL_NS_GPL(cs35l56_mbox_send, SND_SOC_CS35L56_SHARED);

+int cs35l56_firmware_shutdown(struct cs35l56_base *cs35l56_base)
+{
+ int ret;
+ unsigned int reg;
+ unsigned int val;
+
+ ret = cs35l56_mbox_send(cs35l56_base, CS35L56_MBOX_CMD_SHUTDOWN);
+ if (ret)
+ return ret;
+
+ if (cs35l56_base->rev < CS35L56_REVID_B0)
+ reg = CS35L56_DSP1_PM_CUR_STATE_A1;
+ else
+ reg = CS35L56_DSP1_PM_CUR_STATE;
+
+ ret = regmap_read_poll_timeout(cs35l56_base->regmap, reg,
+ val, (val == CS35L56_HALO_STATE_SHUTDOWN),
+ CS35L56_HALO_STATE_POLL_US,
+ CS35L56_HALO_STATE_TIMEOUT_US);
+ if (ret < 0)
+ dev_err(cs35l56_base->dev, "Failed to poll PM_CUR_STATE to 1 is %d (ret %d)\n",
+ val, ret);
+ return ret;
+}
+EXPORT_SYMBOL_NS_GPL(cs35l56_firmware_shutdown, SND_SOC_CS35L56_SHARED);
+
int cs35l56_wait_for_firmware_boot(struct cs35l56_base *cs35l56_base)
{
unsigned int reg;
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index f472bde6d21a..dbe9134ae09a 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -676,8 +676,6 @@ static void cs35l56_secure_patch(struct cs35l56_private *cs35l56)

static void cs35l56_patch(struct cs35l56_private *cs35l56)
{
- unsigned int reg;
- unsigned int val;
int ret;

/*
@@ -694,23 +692,10 @@ static void cs35l56_patch(struct cs35l56_private *cs35l56)
flush_work(&cs35l56->sdw_irq_work);
}

- ret = cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_SHUTDOWN);
+ ret = cs35l56_firmware_shutdown(&cs35l56->base);
if (ret)
goto err;

- if (cs35l56->base.rev < CS35L56_REVID_B0)
- reg = CS35L56_DSP1_PM_CUR_STATE_A1;
- else
- reg = CS35L56_DSP1_PM_CUR_STATE;
-
- ret = regmap_read_poll_timeout(cs35l56->base.regmap, reg,
- val, (val == CS35L56_HALO_STATE_SHUTDOWN),
- CS35L56_HALO_STATE_POLL_US,
- CS35L56_HALO_STATE_TIMEOUT_US);
- if (ret < 0)
- dev_err(cs35l56->base.dev, "Failed to poll PM_CUR_STATE to 1 is %d (ret %d)\n",
- val, ret);
-
/* Use wm_adsp to load and apply the firmware patch and coefficient files */
ret = wm_adsp_power_up(&cs35l56->dsp);
if (ret) {
--
2.30.2