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Message-ID: <20230718144625.39634-1-rf@opensource.cirrus.com>
Date: Tue, 18 Jul 2023 15:46:25 +0100
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: <broonie@...nel.org>
CC: <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
<patches@...nsource.cirrus.com>,
Richard Fitzgerald <rf@...nsource.cirrus.com>
Subject: [PATCH] ASoC: cs35l56: Patch soft registers to defaults
The soft (firmware) registers for volume/mute/posture are not reset by
a chip soft-reset, so use a regmap patch to set them to defaults.
cs35l56_reread_firmware_registers() has been removed. Its intent was to
use whatever the firmware set as a default. But the driver now patches the
defaults to the registers.
Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
include/sound/cs35l56.h | 2 +-
sound/soc/codecs/cs35l56-shared.c | 38 +++++++++++++------------------
sound/soc/codecs/cs35l56.c | 5 ++--
3 files changed, 20 insertions(+), 25 deletions(-)
diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h
index 1f9713d7ca76..ec672daa36cf 100644
--- a/include/sound/cs35l56.h
+++ b/include/sound/cs35l56.h
@@ -260,7 +260,7 @@ extern const struct cs_dsp_region cs35l56_dsp1_regions[CS35L56_NUM_DSP_REGIONS];
extern const char * const cs35l56_tx_input_texts[CS35L56_NUM_INPUT_SRC];
extern const unsigned int cs35l56_tx_input_values[CS35L56_NUM_INPUT_SRC];
-void cs35l56_reread_firmware_registers(struct device *dev, struct regmap *regmap);
+int cs35l56_set_patch(struct regmap *regmap);
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 60da8c75b7b9..7126f06b8047 100644
--- a/sound/soc/codecs/cs35l56-shared.c
+++ b/sound/soc/codecs/cs35l56-shared.c
@@ -11,6 +11,19 @@
#include "cs35l56.h"
+static const struct reg_sequence cs35l56_patch[] = {
+ /* These are not reset by a soft-reset, so patch to defaults. */
+ { CS35L56_MAIN_RENDER_USER_MUTE, 0x00000000 },
+ { CS35L56_MAIN_RENDER_USER_VOLUME, 0x00000000 },
+ { CS35L56_MAIN_POSTURE_NUMBER, 0x00000000 },
+};
+
+int cs35l56_set_patch(struct regmap *regmap)
+{
+ return regmap_register_patch(regmap, cs35l56_patch, ARRAY_SIZE(cs35l56_patch));
+}
+EXPORT_SYMBOL_NS_GPL(cs35l56_set_patch, SND_SOC_CS35L56_SHARED);
+
static const struct reg_default cs35l56_reg_defaults[] = {
{ CS35L56_ASP1_ENABLES1, 0x00000000 },
{ CS35L56_ASP1_CONTROL1, 0x00000028 },
@@ -35,9 +48,9 @@ static const struct reg_default cs35l56_reg_defaults[] = {
{ CS35L56_IRQ1_MASK_8, 0xfc000fff },
{ CS35L56_IRQ1_MASK_18, 0x1f7df0ff },
{ CS35L56_IRQ1_MASK_20, 0x15c00000 },
- /* CS35L56_MAIN_RENDER_USER_MUTE - soft register, no default */
- /* CS35L56_MAIN_RENDER_USER_VOLUME - soft register, no default */
- /* CS35L56_MAIN_POSTURE_NUMBER - soft register, no default */
+ { CS35L56_MAIN_RENDER_USER_MUTE, 0x00000000 },
+ { CS35L56_MAIN_RENDER_USER_VOLUME, 0x00000000 },
+ { CS35L56_MAIN_POSTURE_NUMBER, 0x00000000 },
};
static bool cs35l56_is_dsp_memory(unsigned int reg)
@@ -181,25 +194,6 @@ static bool cs35l56_volatile_reg(struct device *dev, unsigned int reg)
}
}
-static const u32 cs35l56_firmware_registers[] = {
- CS35L56_MAIN_RENDER_USER_MUTE,
- CS35L56_MAIN_RENDER_USER_VOLUME,
- CS35L56_MAIN_POSTURE_NUMBER,
-};
-
-void cs35l56_reread_firmware_registers(struct device *dev, struct regmap *regmap)
-{
- int i;
- unsigned int val;
-
- for (i = 0; i < ARRAY_SIZE(cs35l56_firmware_registers); i++) {
- regmap_read(regmap, cs35l56_firmware_registers[i], &val);
- dev_dbg(dev, "%s: %d: %#x: %#x\n", __func__,
- i, cs35l56_firmware_registers[i], val);
- }
-}
-EXPORT_SYMBOL_NS_GPL(cs35l56_reread_firmware_registers, SND_SOC_CS35L56_SHARED);
-
const struct cs_dsp_region cs35l56_dsp1_regions[] = {
{ .type = WMFW_HALO_PM_PACKED, .base = CS35L56_DSP1_PMEM_0 },
{ .type = WMFW_HALO_XM_PACKED, .base = CS35L56_DSP1_XMEM_PACKED_0 },
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index c03f9d3c9a13..e046fdd26b74 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -1572,8 +1572,9 @@ int cs35l56_init(struct cs35l56_private *cs35l56)
if (ret)
return ret;
- /* Populate soft registers in the regmap cache */
- cs35l56_reread_firmware_registers(cs35l56->dev, cs35l56->regmap);
+ ret = cs35l56_set_patch(cs35l56->regmap);
+ if (ret)
+ return ret;
/* Registers could be dirty after soft reset or SoundWire enumeration */
regcache_sync(cs35l56->regmap);
--
2.30.2
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