From a6f7c21accb5fca895ee0d490e395deecaddf12f Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Tue, 19 May 2026 14:54:33 +0100 Subject: [PATCH] ASoC: cs35l56-shared-test: Subtract reg_base offset in dummy regmap Subtract the value of cs35l56 regmap_config->reg_base from addresses passed into the mock regmap bus. Chip register addresses transferred over SoundWire are offset by 0x8000 to move them after the address range reserved in the SoundWire spec. This commit prepares for changing the cs35l56-sdw driver to use regmap_config->reg_base to add this offset. When that is done the addresses passed into the mock regmap_bus will include this offset. Signed-off-by: Richard Fitzgerald Link: https://patch.msgid.link/20260519135435.479949-2-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- sound/soc/codecs/cs35l56-shared-test.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/soc/codecs/cs35l56-shared-test.c b/sound/soc/codecs/cs35l56-shared-test.c index cfe7938065f9..8060a275d32b 100644 --- a/sound/soc/codecs/cs35l56-shared-test.c +++ b/sound/soc/codecs/cs35l56-shared-test.c @@ -29,6 +29,7 @@ struct cs35l56_shared_test_priv { struct faux_device *gpio_dev; struct cs35l56_shared_test_mock_gpio *gpio_priv; struct regmap *registers; + unsigned int reg_offset; struct cs35l56_base *cs35l56_base; u8 applied_pad_pull_state[CS35L56_MAX_GPIO]; }; @@ -194,6 +195,8 @@ static int cs35l56_shared_test_reg_read(void *context, unsigned int reg, unsigne { struct cs35l56_shared_test_priv *priv = context; + reg -= priv->reg_offset; + switch (reg) { case CS35L56_SYNC_GPIO1_CFG ... CS35L56_ASP2_DIO_GPIO13_CFG: case CS35L56_GPIO1_CTRL1 ... CS35L56_GPIO13_CTRL1: @@ -214,6 +217,8 @@ static int cs35l56_shared_test_reg_write(void *context, unsigned int reg, unsign { struct cs35l56_shared_test_priv *priv = context; + reg -= priv->reg_offset; + switch (reg) { case CS35L56_UPDATE_REGS: return cs35l56_shared_test_updt_gpio_pres(priv, reg, val); @@ -657,6 +662,7 @@ static int cs35l56_shared_test_case_base_init(struct kunit *test, u8 type, u8 re test->priv = priv; priv->test = test; + priv->reg_offset = regmap_config->reg_base; /* Create dummy amp driver dev */ priv->amp_dev = faux_device_create("cs35l56_shared_test_drv", NULL, NULL);