[PATCH v3 6/8] reset: imx8mp-audiomix: Extend the driver usage
From: Laurentiu Mihalcea <hidden>
Date: 2025-10-29 13:56:16
Also in:
imx, linux-clk, linux-devicetree, lkml
Subsystem:
reset controller framework, the rest · Maintainers:
Philipp Zabel, Linus Torvalds
From: Laurentiu Mihalcea <redacted> Replace the previous approach, in which a single reset map is used, by a per-driver approach, in which each auxiliary device driver holds a reference to a certain reset map. This change is needed to allow the driver to be reused for other NXP block control IPs such as i.MX8ULP's SIM LPAV. Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Laurentiu Mihalcea <redacted> --- drivers/reset/reset-imx8mp-audiomix.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/reset/reset-imx8mp-audiomix.c b/drivers/reset/reset-imx8mp-audiomix.c
index 3f6d11270918..5ee5a32c6950 100644
--- a/drivers/reset/reset-imx8mp-audiomix.c
+++ b/drivers/reset/reset-imx8mp-audiomix.c@@ -23,7 +23,12 @@ struct imx8mp_reset_map { bool active_low; }; -static const struct imx8mp_reset_map reset_map[] = { +struct imx8mp_reset_info { + const struct imx8mp_reset_map *map; + int num_lines; +}; + +static const struct imx8mp_reset_map imx8mp_reset_map[] = { [IMX8MP_AUDIOMIX_EARC_RESET] = { .offset = IMX8MP_AUDIOMIX_EARC_RESET_OFFSET, .mask = BIT(0),
@@ -41,10 +46,16 @@ static const struct imx8mp_reset_map reset_map[] = { }, }; +static const struct imx8mp_reset_info imx8mp_reset_info = { + .map = imx8mp_reset_map, + .num_lines = ARRAY_SIZE(imx8mp_reset_map), +}; + struct imx8mp_audiomix_reset { struct reset_controller_dev rcdev; void __iomem *base; struct regmap *regmap; + const struct imx8mp_reset_info *rinfo; }; static struct imx8mp_audiomix_reset *to_imx8mp_audiomix_reset(struct reset_controller_dev *rcdev)
@@ -56,6 +67,7 @@ static int imx8mp_audiomix_update(struct reset_controller_dev *rcdev, unsigned long id, bool assert) { struct imx8mp_audiomix_reset *priv = to_imx8mp_audiomix_reset(rcdev); + const struct imx8mp_reset_map *reset_map = priv->rinfo->map; unsigned int mask, offset, active_low, shift, val; mask = reset_map[id].mask;
@@ -140,7 +152,8 @@ static int imx8mp_audiomix_reset_probe(struct auxiliary_device *adev, return -ENOMEM; priv->rcdev.owner = THIS_MODULE; - priv->rcdev.nr_resets = ARRAY_SIZE(reset_map); + priv->rinfo = (void *)id->driver_data; + priv->rcdev.nr_resets = priv->rinfo->num_lines; priv->rcdev.ops = &imx8mp_audiomix_reset_ops; priv->rcdev.of_node = dev->parent->of_node; priv->rcdev.dev = dev;
@@ -164,6 +177,7 @@ static int imx8mp_audiomix_reset_probe(struct auxiliary_device *adev, static const struct auxiliary_device_id imx8mp_audiomix_reset_ids[] = { { .name = "clk_imx8mp_audiomix.reset", + .driver_data = (kernel_ulong_t)&imx8mp_reset_info, }, { } };
--
2.43.0