[PATCH v5 6/7] media: qcom: camss: Flag VFE-lites to support more VFEs
From: Bryan O'Donoghue
Date: Sat Nov 18 2023 - 07:12:10 EST
From: Matti Lehtimäki <matti.lehtimaki@xxxxxxxxx>
Some platforms such as SC7280 have three VFEs and two VFE-lites. Current
code has hard-coded two as the maximum number of VFEs. Remove the
hard-coded maximum number of VFEs to handle all possible combinations of
VFEs and VFE-lites.
Signed-off-by: Matti Lehtimäki <matti.lehtimaki@xxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
---
drivers/media/platform/qcom/camss/camss-vfe-480.c | 33 +++++++++++------------
drivers/media/platform/qcom/camss/camss-vfe.c | 5 ++++
drivers/media/platform/qcom/camss/camss-vfe.h | 10 +++++++
drivers/media/platform/qcom/camss/camss.c | 26 +++++++++---------
drivers/media/platform/qcom/camss/camss.h | 3 +--
5 files changed, 44 insertions(+), 33 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-480.c b/drivers/media/platform/qcom/camss/camss-vfe-480.c
index 4652e8b4cff58..dc2735476c823 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-480.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-480.c
@@ -15,31 +15,28 @@
#include "camss.h"
#include "camss-vfe.h"
-/* VFE 2/3 are lite and have a different register layout */
-#define IS_LITE (vfe->id >= 2 ? 1 : 0)
-
#define VFE_HW_VERSION (0x00)
-#define VFE_GLOBAL_RESET_CMD (IS_LITE ? 0x0c : 0x1c)
-#define GLOBAL_RESET_HW_AND_REG (IS_LITE ? BIT(1) : BIT(0))
+#define VFE_GLOBAL_RESET_CMD (vfe_is_lite(vfe) ? 0x0c : 0x1c)
+#define GLOBAL_RESET_HW_AND_REG (vfe_is_lite(vfe) ? BIT(1) : BIT(0))
-#define VFE_REG_UPDATE_CMD (IS_LITE ? 0x20 : 0x34)
+#define VFE_REG_UPDATE_CMD (vfe_is_lite(vfe) ? 0x20 : 0x34)
static inline int reg_update_rdi(struct vfe_device *vfe, int n)
{
- return IS_LITE ? BIT(n) : BIT(1 + (n));
+ return vfe_is_lite(vfe) ? BIT(n) : BIT(1 + (n));
}
#define REG_UPDATE_RDI reg_update_rdi
-#define VFE_IRQ_CMD (IS_LITE ? 0x24 : 0x38)
+#define VFE_IRQ_CMD (vfe_is_lite(vfe) ? 0x24 : 0x38)
#define IRQ_CMD_GLOBAL_CLEAR BIT(0)
-#define VFE_IRQ_MASK(n) ((IS_LITE ? 0x28 : 0x3c) + (n) * 4)
-#define IRQ_MASK_0_RESET_ACK (IS_LITE ? BIT(17) : BIT(0))
-#define IRQ_MASK_0_BUS_TOP_IRQ (IS_LITE ? BIT(4) : BIT(7))
-#define VFE_IRQ_CLEAR(n) ((IS_LITE ? 0x34 : 0x48) + (n) * 4)
-#define VFE_IRQ_STATUS(n) ((IS_LITE ? 0x40 : 0x54) + (n) * 4)
+#define VFE_IRQ_MASK(n) ((vfe_is_lite(vfe) ? 0x28 : 0x3c) + (n) * 4)
+#define IRQ_MASK_0_RESET_ACK (vfe_is_lite(vfe) ? BIT(17) : BIT(0))
+#define IRQ_MASK_0_BUS_TOP_IRQ (vfe_is_lite(vfe) ? BIT(4) : BIT(7))
+#define VFE_IRQ_CLEAR(n) ((vfe_is_lite(vfe) ? 0x34 : 0x48) + (n) * 4)
+#define VFE_IRQ_STATUS(n) ((vfe_is_lite(vfe) ? 0x40 : 0x54) + (n) * 4)
-#define BUS_REG_BASE (IS_LITE ? 0x1a00 : 0xaa00)
+#define BUS_REG_BASE (vfe_is_lite(vfe) ? 0x1a00 : 0xaa00)
#define VFE_BUS_WM_CGC_OVERRIDE (BUS_REG_BASE + 0x08)
#define WM_CGC_OVERRIDE_ALL (0x3FFFFFF)
@@ -49,13 +46,13 @@ static inline int reg_update_rdi(struct vfe_device *vfe, int n)
#define VFE_BUS_IRQ_MASK(n) (BUS_REG_BASE + 0x18 + (n) * 4)
static inline int bus_irq_mask_0_rdi_rup(struct vfe_device *vfe, int n)
{
- return IS_LITE ? BIT(n) : BIT(3 + (n));
+ return vfe_is_lite(vfe) ? BIT(n) : BIT(3 + (n));
}
#define BUS_IRQ_MASK_0_RDI_RUP bus_irq_mask_0_rdi_rup
static inline int bus_irq_mask_0_comp_done(struct vfe_device *vfe, int n)
{
- return IS_LITE ? BIT(4 + (n)) : BIT(6 + (n));
+ return vfe_is_lite(vfe) ? BIT(4 + (n)) : BIT(6 + (n));
}
#define BUS_IRQ_MASK_0_COMP_DONE bus_irq_mask_0_comp_done
@@ -90,8 +87,8 @@ static inline int bus_irq_mask_0_comp_done(struct vfe_device *vfe, int n)
/* for titan 480, each bus client is hardcoded to a specific path
* and each bus client is part of a hardcoded "comp group"
*/
-#define RDI_WM(n) ((IS_LITE ? 0 : 23) + (n))
-#define RDI_COMP_GROUP(n) ((IS_LITE ? 0 : 11) + (n))
+#define RDI_WM(n) ((vfe_is_lite(vfe) ? 0 : 23) + (n))
+#define RDI_COMP_GROUP(n) ((vfe_is_lite(vfe) ? 0 : 11) + (n))
#define MAX_VFE_OUTPUT_LINES 4
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 123e5ead7602d..50929c3cbb831 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -1742,3 +1742,8 @@ void msm_vfe_unregister_entities(struct vfe_device *vfe)
media_entity_cleanup(&sd->entity);
}
}
+
+inline bool vfe_is_lite(struct vfe_device *vfe)
+{
+ return vfe->camss->res->vfe_res[vfe->id].is_lite;
+}
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
index cdbe59d8d437e..e75d5cc0bf47a 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.h
+++ b/drivers/media/platform/qcom/camss/camss-vfe.h
@@ -226,4 +226,14 @@ extern const struct vfe_hw_ops vfe_ops_480;
int vfe_get(struct vfe_device *vfe);
void vfe_put(struct vfe_device *vfe);
+/*
+ * vfe_is_lite - Return if VFE is VFE lite.
+ * @vfe: VFE Device
+ *
+ * Some VFE lites have a different register layout.
+ *
+ * Return whether VFE is VFE lite
+ */
+inline bool vfe_is_lite(struct vfe_device *vfe);
+
#endif /* QC_MSM_CAMSS_VFE_H */
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index ee3e8cefa9b1f..ea0038f62b807 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -706,6 +706,7 @@ static const struct camss_subdev_resources vfe_res_845[] = {
{ 384000000 } },
.reg = { "vfe_lite" },
.interrupt = { "vfe_lite" },
+ .is_lite = true,
.line_num = 4,
.ops = &vfe_ops_170
}
@@ -886,6 +887,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
{ 0 } },
.reg = { "vfe_lite0" },
.interrupt = { "vfe_lite0" },
+ .is_lite = true,
.line_num = 4,
.ops = &vfe_ops_480
},
@@ -905,6 +907,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
{ 0 } },
.reg = { "vfe_lite1" },
.interrupt = { "vfe_lite1" },
+ .is_lite = true,
.line_num = 4,
.ops = &vfe_ops_480
},
@@ -1204,7 +1207,7 @@ static int camss_init_subdevices(struct camss *camss)
}
/* note: SM8250 requires VFE to be initialized before CSID */
- for (i = 0; i < camss->vfe_total_num; i++) {
+ for (i = 0; i < camss->res->vfe_num; i++) {
ret = msm_vfe_subdev_init(camss, &camss->vfe[i],
&res->vfe_res[i], i);
if (ret < 0) {
@@ -1276,7 +1279,7 @@ static int camss_register_entities(struct camss *camss)
goto err_reg_ispif;
}
- for (i = 0; i < camss->vfe_total_num; i++) {
+ for (i = 0; i < camss->res->vfe_num; i++) {
ret = msm_vfe_register_entities(&camss->vfe[i],
&camss->v4l2_dev);
if (ret < 0) {
@@ -1348,7 +1351,7 @@ static int camss_register_entities(struct camss *camss)
}
} else {
for (i = 0; i < camss->res->csid_num; i++)
- for (k = 0; k < camss->vfe_total_num; k++)
+ for (k = 0; k < camss->res->vfe_num; k++)
for (j = 0; j < camss->vfe[k].line_num; j++) {
struct v4l2_subdev *csid = &camss->csid[i].subdev;
struct v4l2_subdev *vfe = &camss->vfe[k].line[j].subdev;
@@ -1372,7 +1375,7 @@ static int camss_register_entities(struct camss *camss)
return 0;
err_link:
- i = camss->vfe_total_num;
+ i = camss->res->vfe_num;
err_reg_vfe:
for (i--; i >= 0; i--)
msm_vfe_unregister_entities(&camss->vfe[i]);
@@ -1411,7 +1414,7 @@ static void camss_unregister_entities(struct camss *camss)
msm_ispif_unregister_entities(camss->ispif);
- for (i = 0; i < camss->vfe_total_num; i++)
+ for (i = 0; i < camss->res->vfe_num; i++)
msm_vfe_unregister_entities(&camss->vfe[i]);
}
@@ -1509,7 +1512,7 @@ static int camss_configure_pd(struct camss *camss)
return 0;
/* count the # of VFEs which have flagged power-domain */
- for (vfepd_num = i = 0; i < camss->vfe_total_num; i++) {
+ for (vfepd_num = i = 0; i < camss->res->vfe_num; i++) {
if (res->vfe_res[i].has_pd)
vfepd_num++;
}
@@ -1584,7 +1587,7 @@ static void camss_genpd_subdevice_cleanup(struct camss *camss)
{
int i;
- for (i = 0; i < camss->vfe_total_num; i++)
+ for (i = 0; i < camss->res->vfe_num; i++)
msm_vfe_genpd_cleanup(&camss->vfe[i]);
}
@@ -1641,8 +1644,7 @@ static int camss_probe(struct platform_device *pdev)
return -ENOMEM;
}
- camss->vfe_total_num = camss->res->vfe_num + camss->res->vfe_lite_num;
- camss->vfe = devm_kcalloc(dev, camss->vfe_total_num,
+ camss->vfe = devm_kcalloc(dev, camss->res->vfe_num,
sizeof(*camss->vfe), GFP_KERNEL);
if (!camss->vfe)
return -ENOMEM;
@@ -1800,8 +1802,7 @@ static const struct camss_resources sdm845_resources = {
.vfe_res = vfe_res_845,
.csiphy_num = ARRAY_SIZE(csiphy_res_845),
.csid_num = ARRAY_SIZE(csid_res_845),
- .vfe_num = 2,
- .vfe_lite_num = 1,
+ .vfe_num = ARRAY_SIZE(vfe_res_845),
};
static const struct camss_resources sm8250_resources = {
@@ -1813,8 +1814,7 @@ static const struct camss_resources sm8250_resources = {
.icc_path_num = ARRAY_SIZE(icc_res_sm8250),
.csiphy_num = ARRAY_SIZE(csiphy_res_8250),
.csid_num = ARRAY_SIZE(csid_res_8250),
- .vfe_num = 2,
- .vfe_lite_num = 2,
+ .vfe_num = ARRAY_SIZE(vfe_res_8250),
};
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 cd8186fe1797b..a0c2dcc779f05 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -51,6 +51,7 @@ struct camss_subdev_resources {
char *pd_name;
u8 line_num;
bool has_pd;
+ bool is_lite;
const void *ops;
};
@@ -95,7 +96,6 @@ struct camss_resources {
const unsigned int csiphy_num;
const unsigned int csid_num;
const unsigned int vfe_num;
- const unsigned int vfe_lite_num;
};
struct camss {
@@ -113,7 +113,6 @@ struct camss {
struct device_link *genpd_link;
struct icc_path *icc_path[ICC_SM8250_COUNT];
const struct camss_resources *res;
- unsigned int vfe_total_num;
};
struct camss_camera_interface {
--
2.42.0