linux-kernel - [PATCH 5.18 0392/1095] drm/vc4: hdmi: Add all the vc5 HDMI registers into the debugfs dumps

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Date:   Mon, 15 Aug 2022 19:56:31 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Maxime Ripard <maxime@...no.tech>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 0392/1095] drm/vc4: hdmi: Add all the vc5 HDMI registers into the debugfs dumps

From: Dave Stevenson <dave.stevenson@...pberrypi.com>

[ Upstream commit 25eb441d55d479581a65bcc9de88bc1d86bf76c1 ]

The vc5 HDMI registers hadn't been added into the debugfs
register sets, therefore weren't dumped on request.
Add them in.

Fixes: 8323989140f3 ("drm/vc4: hdmi: Support the BCM2711 HDMI controllers")
Signed-off-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
Link: https://lore.kernel.org/r/20220613144800.326124-19-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@...no.tech>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 39 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/vc4/vc4_hdmi.h |  8 +++++++
 2 files changed, 47 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 3ff35e3649aa..2ff53482d5d1 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -122,6 +122,12 @@ static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)
 
 	drm_print_regset32(&p, &vc4_hdmi->hdmi_regset);
 	drm_print_regset32(&p, &vc4_hdmi->hd_regset);
+	drm_print_regset32(&p, &vc4_hdmi->cec_regset);
+	drm_print_regset32(&p, &vc4_hdmi->csc_regset);
+	drm_print_regset32(&p, &vc4_hdmi->dvp_regset);
+	drm_print_regset32(&p, &vc4_hdmi->phy_regset);
+	drm_print_regset32(&p, &vc4_hdmi->ram_regset);
+	drm_print_regset32(&p, &vc4_hdmi->rm_regset);
 
 	return 0;
 }
@@ -2374,6 +2380,7 @@ static int vc5_hdmi_init_resources(struct vc4_hdmi *vc4_hdmi)
 	struct platform_device *pdev = vc4_hdmi->pdev;
 	struct device *dev = &pdev->dev;
 	struct resource *res;
+	int ret;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi");
 	if (!res)
@@ -2470,6 +2477,38 @@ static int vc5_hdmi_init_resources(struct vc4_hdmi *vc4_hdmi)
 		return PTR_ERR(vc4_hdmi->reset);
 	}
 
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hdmi_regset, VC4_HDMI);
+	if (ret)
+		return ret;
+
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hd_regset, VC4_HD);
+	if (ret)
+		return ret;
+
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->cec_regset, VC5_CEC);
+	if (ret)
+		return ret;
+
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->csc_regset, VC5_CSC);
+	if (ret)
+		return ret;
+
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->dvp_regset, VC5_DVP);
+	if (ret)
+		return ret;
+
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->phy_regset, VC5_PHY);
+	if (ret)
+		return ret;
+
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->ram_regset, VC5_RAM);
+	if (ret)
+		return ret;
+
+	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->rm_regset, VC5_RM);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 1076faeab616..2b9f5ca15a40 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -184,6 +184,14 @@ struct vc4_hdmi {
 	struct debugfs_regset32 hdmi_regset;
 	struct debugfs_regset32 hd_regset;
 
+	/* VC5 only */
+	struct debugfs_regset32 cec_regset;
+	struct debugfs_regset32 csc_regset;
+	struct debugfs_regset32 dvp_regset;
+	struct debugfs_regset32 phy_regset;
+	struct debugfs_regset32 ram_regset;
+	struct debugfs_regset32 rm_regset;
+
 	/**
 	 * @hw_lock: Spinlock protecting device register access.
 	 */
-- 
2.35.1