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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Dave Stevenson <dave.stevenson@raspberrypi.com>,
        Maxime Ripard <maxime@cerno.tech>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.19 0415/1157] drm/vc4: hdmi: Add all the vc5 HDMI registers into the debugfs dumps
Date:   Mon, 15 Aug 2022 19:56:11 +0200
Message-Id: <20220815180456.257344354@linuxfoundation.org>
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From: Dave Stevenson <dave.stevenson@raspberrypi.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@raspberrypi.com>
Link: https://lore.kernel.org/r/20220613144800.326124-19-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Sasha Levin <sashal@kernel.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 6b4f42332d95..e314e0a4c4c3 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -145,6 +145,12 @@ 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;
 }
@@ -2704,6 +2710,7 @@ 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)
@@ -2800,6 +2807,38 @@ 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 51b27dcdcd9b..1520387b317f 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -179,6 +179,14 @@ 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