Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ASoC: fsl_mqs: Support accessing registers by scmi interface
On i.MX95, the MQS module in Always-on (AON) domain only can
be accessed by System Controller Management Interface (SCMI)
MISC Protocol. So define a specific regmap_config for the case.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20241025062935.1071408-1-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
authored by
Shengjiu Wang
and committed by
Mark Brown
101c9023
28f7aa0c
+42
+1
sound/soc/fsl/Kconfig
+1
sound/soc/fsl/Kconfig
+41
sound/soc/fsl/fsl_mqs.c
+41
sound/soc/fsl/fsl_mqs.c
···
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// Copyright 2019 NXP
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#include <linux/clk.h>
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#include <linux/firmware/imx/sm.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/mfd/syscon.h>
···
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#define FSL_MQS_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
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#define FSL_MQS_FORMATS SNDRV_PCM_FMTBIT_S16_LE
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static int fsl_mqs_sm_read(void *context, unsigned int reg, unsigned int *val)
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{
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struct fsl_mqs *mqs_priv = context;
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int num = 1;
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if (IS_ENABLED(CONFIG_IMX_SCMI_MISC_DRV) &&
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mqs_priv->soc->ctrl_off == reg)
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return scmi_imx_misc_ctrl_get(SCMI_IMX_CTRL_MQS1_SETTINGS, &num, val);
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return -EINVAL;
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};
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static int fsl_mqs_sm_write(void *context, unsigned int reg, unsigned int val)
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{
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struct fsl_mqs *mqs_priv = context;
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if (IS_ENABLED(CONFIG_IMX_SCMI_MISC_DRV) &&
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mqs_priv->soc->ctrl_off == reg)
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return scmi_imx_misc_ctrl_set(SCMI_IMX_CTRL_MQS1_SETTINGS, val);
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return -EINVAL;
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};
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static int fsl_mqs_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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.cache_type = REGCACHE_NONE,
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};
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static const struct regmap_config fsl_mqs_sm_regmap = {
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.reg_bits = 32,
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.val_bits = 32,
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.reg_read = fsl_mqs_sm_read,
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.reg_write = fsl_mqs_sm_write,
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};
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static int fsl_mqs_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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of_node_put(gpr_np);
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if (IS_ERR(mqs_priv->regmap)) {
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dev_err(&pdev->dev, "failed to get gpr regmap\n");
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return PTR_ERR(mqs_priv->regmap);
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}
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} else if (mqs_priv->soc->type == TYPE_REG_SM) {
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mqs_priv->regmap = devm_regmap_init(&pdev->dev,
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NULL,
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mqs_priv,
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&fsl_mqs_sm_regmap);
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if (IS_ERR(mqs_priv->regmap)) {
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dev_err(&pdev->dev, "failed to init regmap: %ld\n",
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PTR_ERR(mqs_priv->regmap));
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return PTR_ERR(mqs_priv->regmap);
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}
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} else {