fsl_ssi and imx-ssi can be both enabled at the same time. To be able to
add AC97 support to fsl_ssi, soc_ac97_ops have to be available to both
drivers.
fsl_ssi has DT support and should be the only driver at some point in
the future. This patch moves the definition of soc_ac97_ops to fsl_ssi.
imx-ssi copies its own ac97 ops struct into soc_ac97_ops when used in
AC97 mode.
Signed-off-by: Markus Pargmann <m...@pengutronix.de>
---
sound/soc/fsl/Kconfig | 1 +
sound/soc/fsl/fsl_ssi.c | 8 ++++++++
sound/soc/fsl/imx-ssi.c | 7 +++++--
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
index 7860cc2..74ef96e 100644
--- a/sound/soc/fsl/Kconfig
+++ b/sound/soc/fsl/Kconfig
@@ -107,6 +107,7 @@ if SND_IMX_SOC
config SND_SOC_IMX_SSI
tristate
+ select SND_SOC_FSL_SSI
config SND_SOC_IMX_PCM_FIQ
bool
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 2f2d837..db55499 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -587,6 +587,14 @@ static const struct snd_soc_component_driver
fsl_ssi_component = {
.name = "fsl-ssi",
};
+/*
+ * FIXME: As soon as all boards using imx-ssi AC97 mode are able to use
+ * fsl-ssi, soc_ac97_ops can be used exclusively in this driver without copying
+ * the struct. AC97 support can then be removed from imx-ssi.
+ */
+struct snd_ac97_bus_ops soc_ac97_ops;
+EXPORT_SYMBOL_GPL(soc_ac97_ops);
+
/* Show the statistics of a flag only if its interrupt is enabled. The
* compiler will optimze this code to a no-op if the interrupt is not
* enabled.
diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c
index 16ae16d..3760220 100644
--- a/sound/soc/fsl/imx-ssi.c
+++ b/sound/soc/fsl/imx-ssi.c
@@ -501,13 +501,14 @@ static void imx_ssi_ac97_warm_reset(struct snd_ac97 *ac97)
imx_ssi_ac97_read(ac97, 0);
}
-struct snd_ac97_bus_ops soc_ac97_ops = {
+static struct snd_ac97_bus_ops imx_ssi_soc_ac97_ops = {
.read = imx_ssi_ac97_read,
.write = imx_ssi_ac97_write,
.reset = imx_ssi_ac97_reset,
.warm_reset = imx_ssi_ac97_warm_reset
};
-EXPORT_SYMBOL_GPL(soc_ac97_ops);
+
+extern struct snd_ac97_bus_ops soc_ac97_ops;
static int imx_ssi_probe(struct platform_device *pdev)
{
@@ -547,6 +548,8 @@ static int imx_ssi_probe(struct platform_device *pdev)
}
if (ssi->flags & IMX_SSI_USE_AC97) {
+ memcpy(&soc_ac97_ops, &imx_ssi_soc_ac97_ops,
+ sizeof(soc_ac97_ops));
if (ac97_ssi) {
dev_err(&pdev->dev, "AC'97 SSI already registered\n");
ret = -EBUSY;
--
1.8.2.1
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