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Subject: media: qcom: camss: Decompose register and link operations
Author: Atanas Filipov <quic_afili...@quicinc.com>
Date: Wed May 22 18:46:58 2024 +0300
Split link and register operations.
Add dedicated link callback according to SoC identifier.
Signed-off-by: Atanas Filipov <quic_afili...@quicinc.com>
Signed-off-by: Gjorgji Rosikopulos <quic_grosi...@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonog...@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonog...@linaro.org> #
sc8280xp/sm8250/sdm845/apq8016
Acked-by: Bryan O'Donoghue <bryan.odonog...@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/platform/qcom/camss/camss.c | 141 +++++++++++++++++-------------
drivers/media/platform/qcom/camss/camss.h | 1 +
2 files changed, 81 insertions(+), 61 deletions(-)
---
diff --git a/drivers/media/platform/qcom/camss/camss.c
b/drivers/media/platform/qcom/camss/camss.c
index 1b75918fc35b..8a3968d1cd83 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -1756,72 +1756,30 @@ static int camss_init_subdevices(struct camss *camss)
}
/*
- * camss_register_entities - Register subdev nodes and create links
+ * camss_link_entities - Register subdev nodes and create links
* @camss: CAMSS device
*
* Return 0 on success or a negative error code on failure
*/
-static int camss_register_entities(struct camss *camss)
+static int camss_link_entities(struct camss *camss)
{
int i, j, k;
int ret;
- for (i = 0; i < camss->res->csiphy_num; i++) {
- ret = msm_csiphy_register_entity(&camss->csiphy[i],
- &camss->v4l2_dev);
- if (ret < 0) {
- dev_err(camss->dev,
- "Failed to register csiphy%d entity: %d\n",
- i, ret);
- goto err_reg_csiphy;
- }
- }
-
- for (i = 0; i < camss->res->csid_num; i++) {
- ret = msm_csid_register_entity(&camss->csid[i],
- &camss->v4l2_dev);
- if (ret < 0) {
- dev_err(camss->dev,
- "Failed to register csid%d entity: %d\n",
- i, ret);
- goto err_reg_csid;
- }
- }
-
- ret = msm_ispif_register_entities(camss->ispif,
- &camss->v4l2_dev);
- if (ret < 0) {
- dev_err(camss->dev, "Failed to register ispif entities: %d\n",
- ret);
- goto err_reg_ispif;
- }
-
- for (i = 0; i < camss->res->vfe_num; i++) {
- ret = msm_vfe_register_entities(&camss->vfe[i],
- &camss->v4l2_dev);
- if (ret < 0) {
- dev_err(camss->dev,
- "Failed to register vfe%d entities: %d\n",
- i, ret);
- goto err_reg_vfe;
- }
- }
-
for (i = 0; i < camss->res->csiphy_num; i++) {
for (j = 0; j < camss->res->csid_num; j++) {
- ret = media_create_pad_link(
- &camss->csiphy[i].subdev.entity,
- MSM_CSIPHY_PAD_SRC,
- &camss->csid[j].subdev.entity,
- MSM_CSID_PAD_SINK,
- 0);
+ ret =
media_create_pad_link(&camss->csiphy[i].subdev.entity,
+ MSM_CSIPHY_PAD_SRC,
+
&camss->csid[j].subdev.entity,
+ MSM_CSID_PAD_SINK,
+ 0);
if (ret < 0) {
dev_err(camss->dev,
"Failed to link %s->%s entities: %d\n",
camss->csiphy[i].subdev.entity.name,
camss->csid[j].subdev.entity.name,
ret);
- goto err_link;
+ return ret;
}
}
}
@@ -1829,19 +1787,18 @@ static int camss_register_entities(struct camss *camss)
if (camss->ispif) {
for (i = 0; i < camss->res->csid_num; i++) {
for (j = 0; j < camss->ispif->line_num; j++) {
- ret = media_create_pad_link(
- &camss->csid[i].subdev.entity,
- MSM_CSID_PAD_SRC,
- &camss->ispif->line[j].subdev.entity,
- MSM_ISPIF_PAD_SINK,
- 0);
+ ret =
media_create_pad_link(&camss->csid[i].subdev.entity,
+ MSM_CSID_PAD_SRC,
+
&camss->ispif->line[j].subdev.entity,
+ MSM_ISPIF_PAD_SINK,
+ 0);
if (ret < 0) {
dev_err(camss->dev,
"Failed to link %s->%s
entities: %d\n",
camss->csid[i].subdev.entity.name,
camss->ispif->line[j].subdev.entity.name,
ret);
- goto err_link;
+ return ret;
}
}
}
@@ -1863,7 +1820,7 @@ static int camss_register_entities(struct camss *camss)
ispif->entity.name,
vfe->entity.name,
ret);
- goto err_link;
+ return ret;
}
}
} else {
@@ -1884,15 +1841,67 @@ static int camss_register_entities(struct camss *camss)
csid->entity.name,
vfe->entity.name,
ret);
- goto err_link;
+ return ret;
}
}
}
+ return 0;
+}
+
+/*
+ * camss_register_entities - Register subdev nodes and create links
+ * @camss: CAMSS device
+ *
+ * Return 0 on success or a negative error code on failure
+ */
+static int camss_register_entities(struct camss *camss)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < camss->res->csiphy_num; i++) {
+ ret = msm_csiphy_register_entity(&camss->csiphy[i],
+ &camss->v4l2_dev);
+ if (ret < 0) {
+ dev_err(camss->dev,
+ "Failed to register csiphy%d entity: %d\n",
+ i, ret);
+ goto err_reg_csiphy;
+ }
+ }
+
+ for (i = 0; i < camss->res->csid_num; i++) {
+ ret = msm_csid_register_entity(&camss->csid[i],
+ &camss->v4l2_dev);
+ if (ret < 0) {
+ dev_err(camss->dev,
+ "Failed to register csid%d entity: %d\n",
+ i, ret);
+ goto err_reg_csid;
+ }
+ }
+
+ ret = msm_ispif_register_entities(camss->ispif,
+ &camss->v4l2_dev);
+ if (ret < 0) {
+ dev_err(camss->dev, "Failed to register ispif entities: %d\n",
ret);
+ goto err_reg_ispif;
+ }
+
+ for (i = 0; i < camss->res->vfe_num; i++) {
+ ret = msm_vfe_register_entities(&camss->vfe[i],
+ &camss->v4l2_dev);
+ if (ret < 0) {
+ dev_err(camss->dev,
+ "Failed to register vfe%d entities: %d\n",
+ i, ret);
+ goto err_reg_vfe;
+ }
+ }
+
return 0;
-err_link:
- i = camss->res->vfe_num;
err_reg_vfe:
for (i--; i >= 0; i--)
msm_vfe_unregister_entities(&camss->vfe[i]);
@@ -2212,6 +2221,10 @@ static int camss_probe(struct platform_device *pdev)
if (ret < 0)
goto err_v4l2_device_unregister;
+ ret = camss->res->link_entities(camss);
+ if (ret < 0)
+ goto err_register_subdevs;
+
if (num_subdevs) {
camss->notifier.ops = &camss_subdev_notifier_ops;
@@ -2291,6 +2304,7 @@ static const struct camss_resources msm8916_resources = {
.csiphy_num = ARRAY_SIZE(csiphy_res_8x16),
.csid_num = ARRAY_SIZE(csid_res_8x16),
.vfe_num = ARRAY_SIZE(vfe_res_8x16),
+ .link_entities = camss_link_entities
};
static const struct camss_resources msm8996_resources = {
@@ -2302,6 +2316,7 @@ static const struct camss_resources msm8996_resources = {
.csiphy_num = ARRAY_SIZE(csiphy_res_8x96),
.csid_num = ARRAY_SIZE(csid_res_8x96),
.vfe_num = ARRAY_SIZE(vfe_res_8x96),
+ .link_entities = camss_link_entities
};
static const struct camss_resources sdm660_resources = {
@@ -2313,6 +2328,7 @@ static const struct camss_resources sdm660_resources = {
.csiphy_num = ARRAY_SIZE(csiphy_res_660),
.csid_num = ARRAY_SIZE(csid_res_660),
.vfe_num = ARRAY_SIZE(vfe_res_660),
+ .link_entities = camss_link_entities
};
static const struct camss_resources sdm845_resources = {
@@ -2323,6 +2339,7 @@ static const struct camss_resources sdm845_resources = {
.csiphy_num = ARRAY_SIZE(csiphy_res_845),
.csid_num = ARRAY_SIZE(csid_res_845),
.vfe_num = ARRAY_SIZE(vfe_res_845),
+ .link_entities = camss_link_entities
};
static const struct camss_resources sm8250_resources = {
@@ -2336,6 +2353,7 @@ static const struct camss_resources sm8250_resources = {
.csiphy_num = ARRAY_SIZE(csiphy_res_8250),
.csid_num = ARRAY_SIZE(csid_res_8250),
.vfe_num = ARRAY_SIZE(vfe_res_8250),
+ .link_entities = camss_link_entities
};
static const struct camss_resources sc8280xp_resources = {
@@ -2350,6 +2368,7 @@ static const struct camss_resources sc8280xp_resources = {
.csiphy_num = ARRAY_SIZE(csiphy_res_sc8280xp),
.csid_num = ARRAY_SIZE(csid_res_sc8280xp),
.vfe_num = ARRAY_SIZE(vfe_res_sc8280xp),
+ .link_entities = camss_link_entities
};
static const struct of_device_id camss_dt_match[] = {
diff --git a/drivers/media/platform/qcom/camss/camss.h
b/drivers/media/platform/qcom/camss/camss.h
index 9e73a55a257b..588a52eb2d43 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -98,6 +98,7 @@ struct camss_resources {
const unsigned int csiphy_num;
const unsigned int csid_num;
const unsigned int vfe_num;
+ int (*link_entities)(struct camss *camss);
};
struct camss {
