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Message-Id: <20231101-b4-camss-named-power-domains-v3-3-bbdf5f22462a@linaro.org>
Date: Wed, 01 Nov 2023 10:54:33 +0000
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: hverkuil-cisco@...all.nl, laurent.pinchart@...asonboard.com,
Robert Foss <rfoss@...nel.org>,
Todor Tomov <todor.too@...il.com>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
matti.lehtimaki@...il.com
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/5] media: qcom: camss: Use common VFE
pm_domain_on/pm_domain_off where applicable
For the various versions of VFE we have a boiler-plate
pm_domain_on/pm_domain_off callback pair of the general form.
- Error check.
Not always done but applicable to all.
- device_link_add (DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME |
DL_FLAG_RPM_ACTIVE);
- Error check returning -EINVAL on error.
- Return 0
Reduce the pattern down to a common callback. VFE 4.1 is a special case
which to me also indicates that it is worthwhile maintaining an indirection
for the vfe_pm_domain_{on|off} for now.
Otherwise lets chuck out a bunch of needlessly replicated code.
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Suggested-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
---
drivers/media/platform/qcom/camss/camss-vfe-170.c | 35 -----------------------
drivers/media/platform/qcom/camss/camss-vfe-4-1.c | 8 +++---
drivers/media/platform/qcom/camss/camss-vfe-4-7.c | 31 --------------------
drivers/media/platform/qcom/camss/camss-vfe-4-8.c | 28 ------------------
drivers/media/platform/qcom/camss/camss-vfe-480.c | 35 -----------------------
drivers/media/platform/qcom/camss/camss-vfe.c | 34 ++++++++++++++++++++++
drivers/media/platform/qcom/camss/camss-vfe.h | 12 ++++++++
7 files changed, 50 insertions(+), 133 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-170.c b/drivers/media/platform/qcom/camss/camss-vfe-170.c
index 7451484317cc3..795ac3815339a 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-170.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-170.c
@@ -627,41 +627,6 @@ static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm)
spin_unlock_irqrestore(&vfe->output_lock, flags);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return;
-
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return 0;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
- DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME |
- DL_FLAG_RPM_ACTIVE);
- if (!vfe->genpd_link)
- return -EINVAL;
-
- return 0;
-}
-
/*
* vfe_queue_buffer - Add empty buffer
* @vid: Video device structure
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
index 2911e4126e7ad..ef6b34c915df1 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
@@ -936,7 +936,7 @@ static irqreturn_t vfe_isr(int irq, void *dev)
* vfe_pm_domain_off - Disable power domains specific to this VFE.
* @vfe: VFE Device
*/
-static void vfe_pm_domain_off(struct vfe_device *vfe)
+static void vfe_4_1_pm_domain_off(struct vfe_device *vfe)
{
/* nop */
}
@@ -945,7 +945,7 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
* vfe_pm_domain_on - Enable power domains specific to this VFE.
* @vfe: VFE Device
*/
-static int vfe_pm_domain_on(struct vfe_device *vfe)
+static int vfe_4_1_pm_domain_on(struct vfe_device *vfe)
{
return 0;
}
@@ -999,8 +999,8 @@ const struct vfe_hw_ops vfe_ops_4_1 = {
.hw_version = vfe_hw_version,
.isr_read = vfe_isr_read,
.isr = vfe_isr,
- .pm_domain_off = vfe_pm_domain_off,
- .pm_domain_on = vfe_pm_domain_on,
+ .pm_domain_off = vfe_4_1_pm_domain_off,
+ .pm_domain_on = vfe_4_1_pm_domain_on,
.reg_update_clear = vfe_reg_update_clear,
.reg_update = vfe_reg_update,
.subdev_init = vfe_subdev_init,
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
index 2b4e7e039407b..7655d22a9fda2 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
@@ -1103,37 +1103,6 @@ static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- if (!vfe)
- return;
-
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd, DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
-
- if (!vfe->genpd_link) {
- dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", vfe->id);
- return -EINVAL;
- }
-
- return 0;
-}
-
static void vfe_violation_read(struct vfe_device *vfe)
{
u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
index 5e95343241304..f52fa30f3853e 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
@@ -1093,34 +1093,6 @@ static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd, DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
-
- if (!vfe->genpd_link) {
- dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", vfe->id);
- return -EINVAL;
- }
-
- return 0;
-}
-
static void vfe_violation_read(struct vfe_device *vfe)
{
u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-480.c b/drivers/media/platform/qcom/camss/camss-vfe-480.c
index a70b8633bb3eb..4652e8b4cff58 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-480.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-480.c
@@ -452,41 +452,6 @@ static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm)
spin_unlock_irqrestore(&vfe->output_lock, flags);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return;
-
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return 0;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
- DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME |
- DL_FLAG_RPM_ACTIVE);
- if (!vfe->genpd_link)
- return -EINVAL;
-
- return 0;
-}
-
/*
* vfe_queue_buffer - Add empty buffer
* @vid: Video device structure
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 94267b9974554..5172eb5612a1c 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -474,6 +474,40 @@ void vfe_isr_reset_ack(struct vfe_device *vfe)
complete(&vfe->reset_complete);
}
+/*
+ * vfe_pm_domain_off - Disable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+void vfe_pm_domain_off(struct vfe_device *vfe)
+{
+ if (!vfe->genpd)
+ return;
+
+ device_link_del(vfe->genpd_link);
+ vfe->genpd_link = NULL;
+}
+
+/*
+ * vfe_pm_domain_on - Enable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+int vfe_pm_domain_on(struct vfe_device *vfe)
+{
+ struct camss *camss = vfe->camss;
+
+ if (!vfe->genpd)
+ return 0;
+
+ vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
+ DL_FLAG_STATELESS |
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_RPM_ACTIVE);
+ if (!vfe->genpd_link)
+ return -EINVAL;
+
+ return 0;
+}
+
static int vfe_match_clock_names(struct vfe_device *vfe,
struct camss_clock *clock)
{
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
index c1c50023d4876..992a2103ec44c 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.h
+++ b/drivers/media/platform/qcom/camss/camss-vfe.h
@@ -203,6 +203,18 @@ int vfe_reset(struct vfe_device *vfe);
*/
int vfe_disable(struct vfe_line *line);
+/*
+ * vfe_pm_domain_off - Disable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+void vfe_pm_domain_off(struct vfe_device *vfe);
+
+/*
+ * vfe_pm_domain_on - Enable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+int vfe_pm_domain_on(struct vfe_device *vfe);
+
extern const struct vfe_hw_ops vfe_ops_4_1;
extern const struct vfe_hw_ops vfe_ops_4_7;
extern const struct vfe_hw_ops vfe_ops_4_8;
--
2.42.0
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