linux-kernel - [PATCH] drm/bridge: cdns-mhdp8546: Remove unused functions

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Message-ID: <20241005232017.305217-1-linux@treblig.org>
Date: Sun,  6 Oct 2024 00:20:17 +0100
From: linux@...blig.org
To: andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	rfoss@...nel.org,
	Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
	jernej.skrabec@...il.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch
Cc: dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] drm/bridge: cdns-mhdp8546: Remove unused functions

From: "Dr. David Alan Gilbert" <linux@...blig.org>

cdns_mhdp_hdcp_set_lc() and cdns_mhdp_hdcp_set_public_key_param()
were added by commit
6a3608eae6d3 ("drm: bridge: cdns-mhdp8546: Enable HDCP")
but never used.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 .../drm/bridge/cadence/cdns-mhdp8546-hdcp.c   | 28 -------------------
 .../drm/bridge/cadence/cdns-mhdp8546-hdcp.h   |  3 --
 2 files changed, 31 deletions(-)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
index 31832ba4017f..42248f179b69 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
@@ -500,34 +500,6 @@ static void cdns_mhdp_hdcp_prop_work(struct work_struct *work)
 	drm_modeset_unlock(&dev->mode_config.connection_mutex);
 }
 
-int cdns_mhdp_hdcp_set_lc(struct cdns_mhdp_device *mhdp, u8 *val)
-{
-	int ret;
-
-	mutex_lock(&mhdp->mbox_mutex);
-	ret = cdns_mhdp_secure_mailbox_send(mhdp, MB_MODULE_ID_HDCP_GENERAL,
-					    HDCP_GENERAL_SET_LC_128,
-					    16, val);
-	mutex_unlock(&mhdp->mbox_mutex);
-
-	return ret;
-}
-
-int
-cdns_mhdp_hdcp_set_public_key_param(struct cdns_mhdp_device *mhdp,
-				    struct cdns_hdcp_tx_public_key_param *val)
-{
-	int ret;
-
-	mutex_lock(&mhdp->mbox_mutex);
-	ret = cdns_mhdp_secure_mailbox_send(mhdp, MB_MODULE_ID_HDCP_TX,
-					    HDCP2X_TX_SET_PUBLIC_KEY_PARAMS,
-					    sizeof(*val), (u8 *)val);
-	mutex_unlock(&mhdp->mbox_mutex);
-
-	return ret;
-}
-
 int cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type)
 {
 	int ret;
diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.h b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.h
index 334c0b8b0d4f..3b6ec9c3a8d8 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.h
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.h
@@ -82,9 +82,6 @@ struct cdns_hdcp_tx_public_key_param {
 	u8 E[DLP_E];
 };
 
-int cdns_mhdp_hdcp_set_public_key_param(struct cdns_mhdp_device *mhdp,
-					struct cdns_hdcp_tx_public_key_param *val);
-int cdns_mhdp_hdcp_set_lc(struct cdns_mhdp_device *mhdp, u8 *val);
 int cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type);
 int cdns_mhdp_hdcp_disable(struct cdns_mhdp_device *mhdp);
 void cdns_mhdp_hdcp_init(struct cdns_mhdp_device *mhdp);
-- 
2.46.2