linux-kernel - [PATCH 10/16] media: qcom: camss: Add callback API for RUP update and buf done

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Message-ID: <20241205155538.250743-11-quic_depengs@quicinc.com>
Date: Thu, 5 Dec 2024 21:25:32 +0530
From: Depeng Shao <quic_depengs@...cinc.com>
To: <rfoss@...nel.org>, <todor.too@...il.com>, <bryan.odonoghue@...aro.org>,
        <mchehab@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <vladimir.zapolskiy@...aro.org>
CC: <quic_eberman@...cinc.com>, <quic_depengs@...cinc.com>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kernel@...cinc.com>
Subject: [PATCH 10/16] media: qcom: camss: Add callback API for RUP update and buf done

The RUP registers and buf done irq are moved from the IFE to CSID register
block on recent CAMSS implementations. Add callbacks structure to wrapper
the location change with minimum logic disruption.

Signed-off-by: Depeng Shao <quic_depengs@...cinc.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
---
 .../media/platform/qcom/camss/camss-csid.h    |  9 ++++++++
 drivers/media/platform/qcom/camss/camss.c     | 22 +++++++++++++++++++
 drivers/media/platform/qcom/camss/camss.h     |  3 +++
 3 files changed, 34 insertions(+)

diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h
index f52209b96583..1369e7ea7219 100644
--- a/drivers/media/platform/qcom/camss/camss-csid.h
+++ b/drivers/media/platform/qcom/camss/camss-csid.h
@@ -152,6 +152,14 @@ struct csid_hw_ops {
 	 * @csid: CSID device
 	 */
 	void (*subdev_init)(struct csid_device *csid);
+
+	/*
+	 * reg_update - receive message from other sub device
+	 * @csid: CSID device
+	 * @port_id: Port id
+	 * @is_clear: Indicate if it is clearing reg update or setting reg update
+	 */
+	void (*reg_update)(struct csid_device *csid, int port_id, bool is_clear);
 };
 
 struct csid_subdev_resources {
@@ -168,6 +176,7 @@ struct csid_device {
 	struct media_pad pads[MSM_CSID_PADS_NUM];
 	void __iomem *base;
 	u32 irq;
+	u32 reg_update;
 	char irq_name[30];
 	struct camss_clock *clock;
 	int nclocks;
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 9fb31f4c18ad..e24084ff88de 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -2087,6 +2087,28 @@ static int camss_link_entities(struct camss *camss)
 	return 0;
 }
 
+void camss_reg_update(struct camss *camss, int hw_id, int port_id, bool is_clear)
+{
+	struct csid_device *csid;
+
+	if (hw_id < camss->res->csid_num) {
+		csid = &camss->csid[hw_id];
+
+		csid->res->hw_ops->reg_update(csid, port_id, is_clear);
+	}
+}
+
+void camss_buf_done(struct camss *camss, int hw_id, int port_id)
+{
+	struct vfe_device *vfe;
+
+	if (hw_id < camss->res->vfe_num) {
+		vfe = &camss->vfe[hw_id];
+
+		vfe->res->hw_ops->vfe_buf_done(vfe, port_id);
+	}
+}
+
 /*
  * camss_register_entities - Register subdev nodes and create links
  * @camss: CAMSS device
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index 9da7f48f5dd7..6dceff8ce319 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -161,5 +161,8 @@ void camss_pm_domain_off(struct camss *camss, int id);
 int camss_vfe_get(struct camss *camss, int id);
 void camss_vfe_put(struct camss *camss, int id);
 void camss_delete(struct camss *camss);
+void camss_buf_done(struct camss *camss, int hw_id, int port_id);
+void camss_reg_update(struct camss *camss, int hw_id,
+		      int port_id, bool is_clear);
 
 #endif /* QC_MSM_CAMSS_H */
-- 
2.34.1