mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 10:08:59 +00:00
77e97abf12
Also removes random module and switches to new bcm2711 thermal driver. Boot tested on RPi 4B v1.1 4G. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
129 lines
3.7 KiB
Diff
129 lines
3.7 KiB
Diff
From 9fe77147d40e0dc58e7297e79ba8b50e13b8269d Mon Sep 17 00:00:00 2001
|
|
From: Maxime Ripard <maxime@cerno.tech>
|
|
Date: Thu, 19 Dec 2019 16:53:33 +0100
|
|
Subject: [PATCH] drm/vc4: hdmi: Add PHY init and disable function
|
|
|
|
The HDMI PHY in the BCM2711 HDMI controller is significantly more
|
|
complicated to setup than in the older BCM283x SoCs.
|
|
|
|
Let's add hooks to enable and disable the PHY.
|
|
|
|
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
|
|
---
|
|
drivers/gpu/drm/vc4/Makefile | 1 +
|
|
drivers/gpu/drm/vc4/vc4_hdmi.c | 14 +++++++-------
|
|
drivers/gpu/drm/vc4/vc4_hdmi.h | 13 +++++++++++++
|
|
drivers/gpu/drm/vc4/vc4_hdmi_phy.c | 25 +++++++++++++++++++++++++
|
|
4 files changed, 46 insertions(+), 7 deletions(-)
|
|
create mode 100644 drivers/gpu/drm/vc4/vc4_hdmi_phy.c
|
|
|
|
--- a/drivers/gpu/drm/vc4/Makefile
|
|
+++ b/drivers/gpu/drm/vc4/Makefile
|
|
@@ -13,6 +13,7 @@ vc4-y := \
|
|
vc4_kms.o \
|
|
vc4_gem.o \
|
|
vc4_hdmi.o \
|
|
+ vc4_hdmi_phy.o \
|
|
vc4_vec.o \
|
|
vc4_hvs.o \
|
|
vc4_irq.o \
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
@@ -324,7 +324,9 @@ static void vc4_hdmi_encoder_disable(str
|
|
|
|
HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, 0);
|
|
|
|
- HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
|
|
+ if (vc4_hdmi->variant->phy_disable)
|
|
+ vc4_hdmi->variant->phy_disable(vc4_hdmi);
|
|
+
|
|
HDMI_WRITE(HDMI_VID_CTL,
|
|
HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);
|
|
|
|
@@ -384,12 +386,8 @@ static void vc4_hdmi_encoder_enable(stru
|
|
if (vc4_hdmi->variant->reset)
|
|
vc4_hdmi->variant->reset(vc4_hdmi);
|
|
|
|
- /* PHY should be in reset, like
|
|
- * vc4_hdmi_encoder_disable() does.
|
|
- */
|
|
- HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
|
|
-
|
|
- HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0);
|
|
+ if (vc4_hdmi->variant->phy_init)
|
|
+ vc4_hdmi->variant->phy_init(vc4_hdmi, mode);
|
|
|
|
if (debug_dump_regs) {
|
|
struct drm_printer p = drm_info_printer(&vc4_hdmi->pdev->dev);
|
|
@@ -1428,6 +1426,8 @@ static const struct vc4_hdmi_variant bcm
|
|
|
|
.init_resources = vc4_hdmi_init_resources,
|
|
.reset = vc4_hdmi_reset,
|
|
+ .phy_init = vc4_hdmi_phy_init,
|
|
+ .phy_disable = vc4_hdmi_phy_disable,
|
|
};
|
|
|
|
static const struct of_device_id vc4_hdmi_dt_match[] = {
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
|
|
@@ -21,6 +21,8 @@ to_vc4_hdmi_encoder(struct drm_encoder *
|
|
return container_of(encoder, struct vc4_hdmi_encoder, base.base);
|
|
}
|
|
|
|
+struct drm_display_mode;
|
|
+
|
|
struct vc4_hdmi;
|
|
struct vc4_hdmi_register;
|
|
|
|
@@ -38,6 +40,13 @@ struct vc4_hdmi_variant {
|
|
|
|
/* Callback to reset the HDMI block */
|
|
void (*reset)(struct vc4_hdmi *vc4_hdmi);
|
|
+
|
|
+ /* Callback to initialize the PHY according to the mode */
|
|
+ void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
|
|
+ struct drm_display_mode *mode);
|
|
+
|
|
+ /* Callback to disable the PHY */
|
|
+ void (*phy_disable)(struct vc4_hdmi *vc4_hdmi);
|
|
};
|
|
|
|
/* HDMI audio information */
|
|
@@ -95,4 +104,8 @@ encoder_to_vc4_hdmi(struct drm_encoder *
|
|
return container_of(_encoder, struct vc4_hdmi, encoder);
|
|
}
|
|
|
|
+void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
|
|
+ struct drm_display_mode *mode);
|
|
+void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
|
|
+
|
|
#endif /* _VC4_HDMI_H_ */
|
|
--- /dev/null
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
|
|
@@ -0,0 +1,25 @@
|
|
+// SPDX-License-Identifier: GPL-2.0
|
|
+/*
|
|
+ * Copyright (C) 2015 Broadcom
|
|
+ * Copyright (c) 2014 The Linux Foundation. All rights reserved.
|
|
+ * Copyright (C) 2013 Red Hat
|
|
+ * Author: Rob Clark <robdclark@gmail.com>
|
|
+ */
|
|
+
|
|
+#include "vc4_hdmi.h"
|
|
+#include "vc4_hdmi_regs.h"
|
|
+
|
|
+void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode)
|
|
+{
|
|
+ /* PHY should be in reset, like
|
|
+ * vc4_hdmi_encoder_disable() does.
|
|
+ */
|
|
+
|
|
+ HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
|
|
+ HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0);
|
|
+}
|
|
+
|
|
+void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi)
|
|
+{
|
|
+ HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
|
|
+}
|