kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 107 deletions

diff --git a/target/linux/layerscape/patches-5.4/805-display-0055-LF-568-2-drm-gpu-bridge-cdns-Add-force-mode-set-flag.patch b/target/linux/layerscape/patches-5.4/805-display-0055-LF-568-2-drm-gpu-bridge-cdns-Add-force-mode-set-flag.patch
deleted file mode 100644
index 11134536ae..0000000000
--- a/target/linux/layerscape/patches-5.4/805-display-0055-LF-568-2-drm-gpu-bridge-cdns-Add-force-mode-set-flag.patch
+++ /dev/null
@@ -1,107 +0,0 @@
-From d13b544c949e85e39f6c1c20485d8f37f5127e59 Mon Sep 17 00:00:00 2001
-From: Sandor Yu <Sandor.yu@nxp.com>
-Date: Fri, 20 Dec 2019 17:31:52 +0800
-Subject: [PATCH] LF-568-2: drm: gpu: bridge: cdns: Add force mode set flag
-
-In DRM framework, when hdmi/dp cable plugout/plugin in the same HDMI
-sink, because the video mode is same, DRM will not call mode_set.
-But for HDMI 2.0 sink the SCDC configurate will lost, and DP sink
-linktraning status will lost too after cable plugout then plugin.
-
-Currently, hdmi/dp driver will call mode_set function in HPD thread,
-But the mode_set function is called out of DRM framework, and it have
-chance to fail.
-In the patch add force_mode_set flag, set the crtc_state->mode_changed
-to force drm call mode_set when cable plugin.
-
-Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
----
- drivers/gpu/drm/bridge/cadence/cdns-dp-core.c   |  5 +++++
- drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c | 12 ++++++++----
- drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c           |  4 ++++
- include/drm/bridge/cdns-mhdp-common.h           |  1 +
- 4 files changed, 18 insertions(+), 4 deletions(-)
-
---- a/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
-+++ b/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
-@@ -322,6 +322,9 @@ static void cdns_dp_bridge_mode_set(stru
- 	mutex_lock(&mhdp->lock);
- 	cdns_dp_mode_set(mhdp);
- 	mutex_unlock(&mhdp->lock);
-+
-+	/* reset force mode set flag */
-+	mhdp->force_mode_set = false;
- }
- 
- static void cdn_dp_bridge_enable(struct drm_bridge *bridge)
-@@ -375,6 +378,8 @@ static void hotplug_work_func(struct wor
- 	} else if (connector->status == connector_status_disconnected) {
- 		/* Cable Disconnedted  */
- 		DRM_INFO("HDMI/DP Cable Plug Out\n");
-+		/* force mode set for cable replugin to recovery DP video modes */
-+		mhdp->force_mode_set = true;
- 		enable_irq(mhdp->irq[IRQ_IN]);
- 	}
- }
---- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
-+++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
-@@ -178,6 +178,10 @@ void cdns_hdmi_mode_set(struct cdns_mhdp
- 	struct drm_display_mode *mode = &mhdp->mode;
- 	int ret;
- 
-+	/* video mode valid check */
-+	if (mode->clock == 0 || mode->hdisplay == 0 ||  mode->vdisplay == 0)
-+		return;
-+
- 	hdmi_lanes_config(mhdp);
- 
- 	cdns_mhdp_plat_call(mhdp, pclk_rate);
-@@ -393,6 +397,8 @@ static void cdns_hdmi_bridge_mode_set(st
- 	mutex_lock(&mhdp->lock);
- 	cdns_hdmi_mode_set(mhdp);
- 	mutex_unlock(&mhdp->lock);
-+	/* reset force mode set flag */
-+	mhdp->force_mode_set = false;
- }
- 
- bool cdns_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
-@@ -467,14 +473,12 @@ static void hotplug_work_func(struct wor
- 
- 	if (connector->status == connector_status_connected) {
- 		DRM_INFO("HDMI Cable Plug In\n");
--		/* reset video mode after cable plugin */
--		mutex_lock(&mhdp->lock);
--		cdns_hdmi_mode_set(mhdp);
--		mutex_unlock(&mhdp->lock);
- 		enable_irq(mhdp->irq[IRQ_OUT]);
- 	} else if (connector->status == connector_status_disconnected) {
- 		/* Cable Disconnedted  */
- 		DRM_INFO("HDMI Cable Plug Out\n");
-+		/* force mode set for cable replugin to recovery HDMI2.0 video modes */
-+		mhdp->force_mode_set = true;
- 		enable_irq(mhdp->irq[IRQ_IN]);
- 	}
- }
---- a/drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c
-+++ b/drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c
-@@ -40,6 +40,10 @@ static int cdns_mhdp_imx_encoder_atomic_
- 
- 	if (mhdp->plat_data->video_format != 0)
- 		imx_crtc_state->bus_format = mhdp->plat_data->video_format;
-+
-+	if (mhdp->force_mode_set)
-+		crtc_state->mode_changed = true;
-+
- 	return 0;
- }
- 
---- a/include/drm/bridge/cdns-mhdp-common.h
-+++ b/include/drm/bridge/cdns-mhdp-common.h
-@@ -684,6 +684,7 @@ struct cdns_mhdp_device {
- 	bool link_up;
- 	bool power_up;
- 	bool plugged;
-+	bool force_mode_set;
- 	bool is_hpd;
- 	bool is_ls1028a;
- 	struct mutex lock;