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, 236 deletions

diff --git a/target/linux/layerscape/patches-5.4/805-display-0023-drm-mhdp-reset-video-mode-after-hdmi-dp-cable-plugin.patch b/target/linux/layerscape/patches-5.4/805-display-0023-drm-mhdp-reset-video-mode-after-hdmi-dp-cable-plugin.patch
deleted file mode 100644
index 9e90f7d73c..0000000000
--- a/target/linux/layerscape/patches-5.4/805-display-0023-drm-mhdp-reset-video-mode-after-hdmi-dp-cable-plugin.patch
+++ /dev/null
@@ -1,236 +0,0 @@
-From 9ff3c9d6063c6464e243b85bbbbd03e2096a57c0 Mon Sep 17 00:00:00 2001
-From: Sandor Yu <Sandor.yu@nxp.com>
-Date: Mon, 28 Oct 2019 17:07:06 +0800
-Subject: [PATCH] drm: mhdp: reset video mode after hdmi/dp cable plugin
-
-DP need setup link training, and HDMI need reset hdmi sink SCDC
-status after cable reconnected.
-Add video mode_set function when cable plugin.
-Add 20ms/50ms delay for hdmi/dp to waite FW stable.
-
-Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
----
- drivers/gpu/drm/bridge/cadence/cdns-dp-core.c   | 20 ++++----
- drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c | 63 ++++++++++++-------------
- 2 files changed, 43 insertions(+), 40 deletions(-)
-
---- a/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
-+++ b/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
-@@ -108,19 +108,19 @@ static void dp_pixel_clk_reset(struct cd
- 	cdns_mhdp_reg_write(mhdp, SOURCE_HDTX_CAR, val);
- }
- 
--static void cdns_dp_mode_set(struct cdns_mhdp_device *mhdp,
--			const struct drm_display_mode *mode)
-+static void cdns_dp_mode_set(struct cdns_mhdp_device *mhdp)
- {
- 	u32 lane_mapping = mhdp->lane_mapping;
- 	struct drm_dp_link *link = &mhdp->dp.link;
- 	char linkid[6];
- 	int ret;
- 
--	memcpy(&mhdp->mode, mode, sizeof(struct drm_display_mode));
-+	cdns_mhdp_plat_call(mhdp, pclk_rate);
- 
--	dp_pixel_clk_reset(mhdp);
-+	/* delay for DP FW stable after pixel clock relock */
-+	msleep(50);
- 
--	cdns_mhdp_plat_call(mhdp, pclk_rate);
-+	dp_pixel_clk_reset(mhdp);
- 
- 	ret = drm_dp_downstream_id(&mhdp->dp.aux, linkid);
- 	if (ret < 0) {
-@@ -330,11 +330,10 @@ static void cdns_dp_bridge_mode_set(stru
- 	video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
- 
- 	DRM_INFO("Mode: %dx%dp%d\n", mode->hdisplay, mode->vdisplay, mode->clock); 
-+	memcpy(&mhdp->mode, mode, sizeof(struct drm_display_mode));
- 
- 	mutex_lock(&mhdp->lock);
--
--	cdns_dp_mode_set(mhdp, mode);
--
-+	cdns_dp_mode_set(mhdp);
- 	mutex_unlock(&mhdp->lock);
- }
- 
-@@ -367,6 +366,11 @@ static void hotplug_work_func(struct wor
- 	drm_helper_hpd_irq_event(connector->dev);
- 
- 	if (connector->status == connector_status_connected) {
-+		/* reset video mode after cable plugin */
-+		mutex_lock(&mhdp->lock);
-+		cdns_dp_mode_set(mhdp);
-+		mutex_unlock(&mhdp->lock);
-+
- 		DRM_INFO("HDMI/DP Cable Plug In\n");
- 		enable_irq(mhdp->irq[IRQ_OUT]);
- 	} else if (connector->status == connector_status_disconnected) {
---- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
-+++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
-@@ -11,11 +11,11 @@
-  */
- #include <drm/bridge/cdns-mhdp-common.h>
- #include <drm/drm_atomic_helper.h>
--#include <drm/drm_crtc_helper.h>
- #include <drm/drm_edid.h>
- #include <drm/drm_encoder_slave.h>
- #include <drm/drm_of.h>
- #include <drm/drm_probe_helper.h>
-+#include <drm/drm_scdc_helper.h>
- #include <drm/drmP.h>
- #include <linux/delay.h>
- #include <linux/err.h>
-@@ -26,25 +26,30 @@
- #include <linux/mutex.h>
- #include <linux/of_device.h>
- 
--static int hdmi_sink_config(struct cdns_mhdp_device *mhdp)
-+static void hdmi_sink_config(struct cdns_mhdp_device *mhdp)
- {
- 	struct drm_scdc *scdc = &mhdp->connector.base.display_info.hdmi.scdc;
- 	u8 buff;
--	int ret;
-+
-+	/* check sink support SCDC or not */
-+	if (scdc->supported != true) {
-+		DRM_INFO("Sink Not Support SCDC\n");
-+		return;
-+	}
- 
- 	if (mhdp->hdmi.char_rate > 340000) {
- 		/*
- 		 * TMDS Character Rate above 340MHz should working in HDMI2.0
- 		 * Enable scrambling and TMDS_Bit_Clock_Ratio
- 		 */
--		buff = 3;
-+		buff = SCDC_TMDS_BIT_CLOCK_RATIO_BY_40 | SCDC_SCRAMBLING_ENABLE;
- 		mhdp->hdmi.hdmi_type = MODE_HDMI_2_0;
- 	} else  if (scdc->scrambling.low_rates) {
- 		/*
- 		 * Enable scrambling and HDMI2.0 when scrambling capability of sink
- 		 * be indicated in the HF-VSDB LTE_340Mcsc_scramble bit
- 		 */
--		buff = 1;
-+		buff = SCDC_SCRAMBLING_ENABLE;
- 		mhdp->hdmi.hdmi_type = MODE_HDMI_2_0;
- 	} else {
- 		/* Default work in HDMI1.4 */
-@@ -53,8 +58,7 @@ static int hdmi_sink_config(struct cdns_
- 	 }
- 
- 	/* TMDS config */
--	ret = cdns_hdmi_scdc_write(mhdp, 0x20, buff);
--	return ret;
-+	cdns_hdmi_scdc_write(mhdp, 0x20, buff);
- }
- 
- static void hdmi_lanes_config(struct cdns_mhdp_device *mhdp)
-@@ -142,7 +146,7 @@ static int hdmi_avi_info_set(struct cdns
- 	return 0;
- }
- 
--static int hdmi_vendor_info_set(struct cdns_mhdp_device *mhdp,
-+static void hdmi_vendor_info_set(struct cdns_mhdp_device *mhdp,
- 				struct drm_display_mode *mode)
- {
- 	struct hdmi_vendor_infoframe frame;
-@@ -152,19 +156,18 @@ static int hdmi_vendor_info_set(struct c
- 	/* Initialise vendor frame from DRM mode */
- 	ret = drm_hdmi_vendor_infoframe_from_display_mode(&frame, &mhdp->connector.base, mode);
- 	if (ret < 0) {
--		DRM_WARN("Unable to init vendor infoframe: %d\n", ret);
--		return -1;
-+		DRM_INFO("No vendor infoframe\n");
-+		return;
- 	}
- 
- 	ret = hdmi_vendor_infoframe_pack(&frame, buf + 1, sizeof(buf) - 1);
- 	if (ret < 0) {
- 		DRM_WARN("Unable to pack vendor infoframe: %d\n", ret);
--		return -1;
-+		return;
- 	}
- 
- 	buf[0] = 0;
- 	cdns_mhdp_infoframe_set(mhdp, 3, sizeof(buf), buf, HDMI_INFOFRAME_TYPE_VENDOR);
--	return 0;
- }
- 
- void cdns_hdmi_mode_set(struct cdns_mhdp_device *mhdp)
-@@ -172,9 +175,16 @@ void cdns_hdmi_mode_set(struct cdns_mhdp
- 	struct drm_display_mode *mode = &mhdp->mode;
- 	int ret;
- 
--	ret = hdmi_sink_config(mhdp);
--	if (ret < 0)
--		DRM_DEBUG("%s failed\n", __func__);
-+	hdmi_lanes_config(mhdp);
-+
-+	cdns_mhdp_plat_call(mhdp, pclk_rate);
-+
-+	/* delay for HDMI FW stable after pixel clock relock */
-+	msleep(20);
-+
-+	cdns_mhdp_plat_call(mhdp, phy_set);
-+
-+	hdmi_sink_config(mhdp);
- 
- 	ret = cdns_hdmi_ctrl_init(mhdp, mhdp->hdmi.hdmi_type, mhdp->hdmi.char_rate);
- 	if (ret < 0) {
-@@ -195,18 +205,13 @@ void cdns_hdmi_mode_set(struct cdns_mhdp
- 	}
- 
- 	/* vendor info frame is enable only  when HDMI1.4 4K mode */
--	ret = hdmi_vendor_info_set(mhdp, mode);
--	if (ret < 0)
--		DRM_WARN("Unable to configure Vendor infoframe\n");
-+	hdmi_vendor_info_set(mhdp, mode);
- 
- 	ret = cdns_hdmi_mode_config(mhdp, mode, &mhdp->video_info);
- 	if (ret < 0) {
- 		DRM_ERROR("CDN_API_HDMITX_SetVic_blocking ret = %d\n", ret);
- 		return;
- 	}
--
--	/* wait HDMI PHY pixel clock stable */
--	msleep(50);
- }
- 
- static enum drm_connector_status
-@@ -335,20 +340,11 @@ static void cdns_hdmi_bridge_mode_set(st
- 	video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC);
- 	video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
- 
--	mutex_lock(&mhdp->lock);
--
- 	DRM_INFO("Mode: %dx%dp%d\n", mode->hdisplay, mode->vdisplay, mode->clock); 
--
- 	memcpy(&mhdp->mode, mode, sizeof(struct drm_display_mode));
- 
--	hdmi_lanes_config(mhdp);
--
--	cdns_mhdp_plat_call(mhdp, pclk_rate);
--
--	cdns_mhdp_plat_call(mhdp, phy_set);
--
-+	mutex_lock(&mhdp->lock);
- 	cdns_hdmi_mode_set(mhdp);
--
- 	mutex_unlock(&mhdp->lock);
- }
- 
-@@ -367,8 +363,11 @@ static void hotplug_work_func(struct wor
- 	drm_helper_hpd_irq_event(connector->dev);
- 
- 	if (connector->status == connector_status_connected) {
--		/* Cable 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  */