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Wed, 29 Oct 2025 06:56:14 -0700 (PDT) From: Laurentiu Mihalcea To: Abel Vesa , Peng Fan , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Fabio Estevam , Philipp Zabel , Daniel Baluta , Shengjiu Wang Cc: linux-clk@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Pengutronix Kernel Team Subject: [PATCH v3 6/8] reset: imx8mp-audiomix: Extend the driver usage Date: Wed, 29 Oct 2025 06:52:27 -0700 Message-ID: <20251029135229.890-7-laurentiumihalcea111@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251029135229.890-1-laurentiumihalcea111@gmail.com> References: <20251029135229.890-1-laurentiumihalcea111@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Laurentiu Mihalcea 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 Signed-off-by: Laurentiu Mihalcea --- 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