Update support of Baikal-M from kernel-image-std-def-5.10.46-alt1

0629-baikal_vdu_drm-_plane_atomic_check-actually-re-enabl.patch

@@ -0,0 +1,25 @@
+From ed685cdc61fe5da518b096a848bf9846df44fa9a Mon Sep 17 00:00:00 2001
+From: Alexey Sheplyakov <asheplyakov@altlinux.org>
+Date: Thu, 22 Apr 2021 15:03:04 +0400
+Subject: [PATCH] baikal_vdu_drm: _plane_atomic_check: actually re-enable
+ clocking
+
+---
+ drivers/gpu/drm/baikal/baikal_vdu_plane.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/gpu/drm/baikal/baikal_vdu_plane.c b/drivers/gpu/drm/baikal/baikal_vdu_plane.c
+index 5a047835e154..3cf04f5b97cf 100644
+--- a/drivers/gpu/drm/baikal/baikal_vdu_plane.c
++++ b/drivers/gpu/drm/baikal/baikal_vdu_plane.c
+@@ -76,6 +76,7 @@ static int baikal_vdu_primary_plane_atomic_check(struct drm_plane *plane,
+ 	/* release clock domain reset; enable clocking */
+ 	cntl = readl(priv->regs + PCTR);
+ 	cntl |= PCTR_PCR + PCTR_PCI;
++	writel(cntl, priv->regs + PCTR);
+ 
+ 	return ret;
+ }
+-- 
+2.31.1
+

0630-baikal_vdu-figure-out-LVDS-endpoint-count.patch

@@ -0,0 +1,48 @@
+From 92c85bac95a139c996ef1c9a8047c717e4455d3f Mon Sep 17 00:00:00 2001
+From: Alexey Sheplyakov <asheplyakov@altlinux.org>
+Date: Wed, 26 May 2021 15:23:52 +0400
+Subject: [PATCH] baikal_vdu: figure out (LVDS) endpoint count
+
+So the driver works correctly even when 'num-lanes' property is missing
+in the device tree.
+---
+ drivers/gpu/drm/baikal/baikal_vdu_drv.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/baikal/baikal_vdu_drv.c b/drivers/gpu/drm/baikal/baikal_vdu_drv.c
+index 8eb9dda7fa01..f7fb3b81a9f1 100644
+--- a/drivers/gpu/drm/baikal/baikal_vdu_drv.c
++++ b/drivers/gpu/drm/baikal/baikal_vdu_drv.c
+@@ -71,7 +71,7 @@ static int vdu_modeset_init(struct drm_device *dev)
+ 	struct drm_mode_config *mode_config;
+ 	struct baikal_vdu_private *priv = dev->dev_private;
+ 	struct arm_smccc_res res;
+-	int ret = 0;
++	int ret = 0, ep_count = 0;
+ 
+ 	if (priv == NULL)
+ 		return -EINVAL;
+@@ -103,6 +103,12 @@ static int vdu_modeset_init(struct drm_device *dev)
+ 		dev_info(dev->dev, "Bridge probe deferred\n");
+ 		goto out_config;
+ 	}
++	ep_count = of_graph_get_endpoint_count(dev->dev->of_node);
++	if (ep_count <= 0) {
++		dev_err(dev->dev, "no endpoints connected to panel/bridge\n");
++		goto out_config;
++	}
++	priv->ep_count = ep_count;
+ 
+ 	if (priv->bridge) {
+ 		struct drm_encoder *encoder = &priv->encoder;
+@@ -121,6 +127,7 @@ static int vdu_modeset_init(struct drm_device *dev)
+ 			goto out_config;
+ 		}
+ 	} else if (priv->panel) {
++		dev_dbg(dev->dev, "panel has %d endpoints\n", priv->ep_count);
+ 		ret = baikal_vdu_lvds_connector_create(dev);
+ 		if (ret) {
+ 			dev_err(dev->dev, "Failed to create DRM connector\n");
+-- 
+2.31.1
+

0631-panfrost-disable-devfreq-on-BE-M1000-SoC.patch

@@ -0,0 +1,35 @@
+From 5f6a25cbd373aa72738189356a0f606daa7bba59 Mon Sep 17 00:00:00 2001
+From: Alexey Sheplyakov <asheplyakov@altlinux.org>
+Date: Mon, 21 Jun 2021 15:42:47 +0400
+Subject: [PATCH] panfrost: disable devfreq on BE-M1000 SoC
+
+Enabling GPU frequency scaling on BE-M1000 cases GPU MMU lockup:
+
+  [   38.108633] panfrost 2a200000.gpu: AS_ACTIVE bit stuck
+
+Since GPU and CPU share the memory this locks up the whole system.
+Therefore disable devfreq on BE-M1000.
+---
+ drivers/gpu/drm/panfrost/panfrost_devfreq.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+index 8ab025d0035f..c2f46665cf33 100644
+--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
++++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+@@ -97,6 +97,12 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
+ 	struct thermal_cooling_device *cooling;
+ 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;
+ 
++	if (of_device_is_compatible(of_root, "baikal,baikal-m")) {
++		dev_info(pfdev->dev, "disabling GPU devfreq on BE-M1000\n");
++		ret = 0;
++		goto err_fini;
++	}
++
+ 	opp_table = dev_pm_opp_set_regulators(dev, pfdev->comp->supply_names,
+ 					      pfdev->comp->num_supplies);
+ 	if (IS_ERR(opp_table)) {
+-- 
+2.31.1
+

kernel.spec

@@ -374,7 +374,9 @@ Patch0625: 0625-baikal_vdu_drm-LVDS-panel-support.patch
 Patch0626: 0626-Serial-82550_dw-Fix-clock-rate-setting-in-dw8250_set.patch
 Patch0627: 0627-drm-panfrost-Fix-memory-attributes-for-Mali-T620.patch
 Patch0628: 0628-drm-panfrost-Trim-affinity-for-Mali-T620.patch
-
+Patch0629: 0629-baikal_vdu_drm-_plane_atomic_check-actually-re-enabl.patch
+Patch0630: 0630-baikal_vdu-figure-out-LVDS-endpoint-count.patch
+Patch0631: 0631-panfrost-disable-devfreq-on-BE-M1000-SoC.patch
 
 # Disable AutoReq
 AutoReq: 	0