linux-kernel - [PATCH 79/89] drm/vc4: hdmi: Add HDMI ID

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Message-Id: <c1c6dbe495700dda05a4b841d8a373f04916965f.1582533919.git-series.maxime@cerno.tech>
Date:   Mon, 24 Feb 2020 10:07:21 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Eric Anholt <eric@...olt.net>
Cc:     dri-devel@...ts.freedesktop.org,
        linux-rpi-kernel@...ts.infradead.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Tim Gover <tim.gover@...pberrypi.com>,
        Phil Elwell <phil@...pberrypi.com>,
        Maxime Ripard <maxime@...no.tech>
Subject: [PATCH 79/89] drm/vc4: hdmi: Add HDMI ID

Some operations will need us to have the raw ID of the HDMI controller
in the BCM2711, such as the encoder type to register, the name of the
debugfs files, etc.

Let's add it to our variant structure.

Signed-off-by: Maxime Ripard <maxime@...no.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 3 +--
 drivers/gpu/drm/vc4/vc4_hdmi.h | 5 +++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 98198ece8db8..fffd1ce7cf90 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1252,11 +1252,10 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
 	vc4_hdmi = devm_kzalloc(dev, sizeof(*vc4_hdmi), GFP_KERNEL);
 	if (!vc4_hdmi)
 		return -ENOMEM;
-
 	vc4_hdmi->pdev = pdev;
 	variant = of_device_get_match_data(dev);
 	vc4_hdmi->variant = variant;
-	vc4_hdmi->encoder.base.type = VC4_ENCODER_TYPE_HDMI0;
+	vc4_hdmi->encoder.base.type = variant->id ? VC4_ENCODER_TYPE_HDMI1 : VC4_ENCODER_TYPE_HDMI0;
 	encoder = &vc4_hdmi->encoder.base.base;
 
 	ret = variant->init_resources(vc4_hdmi);
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 4a67d62aef53..4d3117de383a 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -27,6 +27,11 @@ struct vc4_hdmi;
 struct vc4_hdmi_register;
 
 struct vc4_hdmi_variant {
+	/* On devices that have multiple, different instances (like
+	 * the BCM2711), which instance is that variant useful for.
+	 */
+	unsigned int id;
+
 	/* List of the registers available on that variant */
 	const struct vc4_hdmi_register *registers;
 
-- 
git-series 0.9.1