mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 18:19:02 +00:00
ed1536e0b6
Deleted (upstreamed): generic/backport-5.15/890-v5.19-net-sfp-Add-tx-fault-workaround-for-Huawei-MA5671A-SFP-ON.patch [1] Other patches automatically rebased. [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.41&id=99858114a3b2c8f5f8707d9bbd46c50f547c87c0 Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
132 lines
4.1 KiB
Diff
132 lines
4.1 KiB
Diff
From 5194c69ca3e4af8c3a6ffc77e5eb1ee0a62a6bbe Mon Sep 17 00:00:00 2001
|
|
From: Maxime Ripard <maxime@cerno.tech>
|
|
Date: Fri, 10 Dec 2021 15:29:56 +0100
|
|
Subject: [PATCH] drm/vc4: hdmi: Always try to have the highest bpc
|
|
|
|
Currently we take the max_bpc property as the bpc value and do not try
|
|
anything else.
|
|
|
|
However, what the other drivers seem to be doing is that they would try
|
|
with the highest bpc allowed by the max_bpc property and the hardware
|
|
capabilities, test if it results in an acceptable configuration, and if
|
|
not decrease the bpc and try again.
|
|
|
|
Let's use the same logic.
|
|
|
|
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_hdmi.c | 44 ++++++++++++++++++++++++++++++----
|
|
drivers/gpu/drm/vc4/vc4_hdmi.h | 4 +++-
|
|
2 files changed, 43 insertions(+), 5 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
@@ -357,6 +357,7 @@ vc4_hdmi_connector_duplicate_state(struc
|
|
return NULL;
|
|
|
|
new_state->pixel_rate = vc4_state->pixel_rate;
|
|
+ new_state->output_bpc = vc4_state->output_bpc;
|
|
__drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
|
|
|
|
return &new_state->base;
|
|
@@ -914,6 +915,8 @@ static void vc5_hdmi_set_timings(struct
|
|
struct drm_connector_state *state,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
+ const struct vc4_hdmi_connector_state *vc4_state =
|
|
+ conn_state_to_vc4_hdmi_conn_state(state);
|
|
bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC;
|
|
bool vsync_pos = mode->flags & DRM_MODE_FLAG_PVSYNC;
|
|
bool interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
|
|
@@ -961,7 +964,7 @@ static void vc5_hdmi_set_timings(struct
|
|
HDMI_WRITE(HDMI_VERTB0, vertb_even);
|
|
HDMI_WRITE(HDMI_VERTB1, vertb);
|
|
|
|
- switch (state->max_bpc) {
|
|
+ switch (vc4_state->output_bpc) {
|
|
case 12:
|
|
gcp = 6;
|
|
gcp_en = true;
|
|
@@ -1251,9 +1254,11 @@ static void vc4_hdmi_encoder_atomic_mode
|
|
struct drm_connector_state *conn_state)
|
|
{
|
|
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
|
|
+ struct vc4_hdmi_connector_state *vc4_state =
|
|
+ conn_state_to_vc4_hdmi_conn_state(conn_state);
|
|
|
|
mutex_lock(&vc4_hdmi->mutex);
|
|
- vc4_hdmi->output_bpc = conn_state->max_bpc;
|
|
+ vc4_hdmi->output_bpc = vc4_state->output_bpc;
|
|
memcpy(&vc4_hdmi->saved_adjusted_mode,
|
|
&crtc_state->adjusted_mode,
|
|
sizeof(vc4_hdmi->saved_adjusted_mode));
|
|
@@ -1308,6 +1313,38 @@ vc4_hdmi_encoder_compute_clock(const str
|
|
return 0;
|
|
}
|
|
|
|
+static int
|
|
+vc4_hdmi_encoder_compute_config(const struct vc4_hdmi *vc4_hdmi,
|
|
+ struct vc4_hdmi_connector_state *vc4_state,
|
|
+ const struct drm_display_mode *mode)
|
|
+{
|
|
+ struct drm_connector_state *conn_state = &vc4_state->base;
|
|
+ unsigned int max_bpc = clamp_t(unsigned int, conn_state->max_bpc, 8, 12);
|
|
+ unsigned int bpc;
|
|
+ int ret;
|
|
+
|
|
+ for (bpc = max_bpc; bpc >= 8; bpc -= 2) {
|
|
+ drm_dbg(dev, "Trying with a %d bpc output\n", bpc);
|
|
+
|
|
+ ret = vc4_hdmi_encoder_compute_clock(vc4_hdmi, vc4_state,
|
|
+ mode, bpc);
|
|
+ if (ret)
|
|
+ continue;
|
|
+
|
|
+ vc4_state->output_bpc = bpc;
|
|
+
|
|
+ drm_dbg(dev,
|
|
+ "Mode %ux%u @ %uHz: Found configuration: bpc: %u, clock: %llu\n",
|
|
+ mode->hdisplay, mode->vdisplay, drm_mode_vrefresh(mode),
|
|
+ vc4_state->output_bpc,
|
|
+ vc4_state->pixel_rate);
|
|
+
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
#define WIFI_2_4GHz_CH1_MIN_FREQ 2400000000ULL
|
|
#define WIFI_2_4GHz_CH1_MAX_FREQ 2422000000ULL
|
|
|
|
@@ -1342,8 +1379,7 @@ static int vc4_hdmi_encoder_atomic_check
|
|
pixel_rate = mode->clock * 1000;
|
|
}
|
|
|
|
- ret = vc4_hdmi_encoder_compute_clock(vc4_hdmi, vc4_state, mode,
|
|
- conn_state->max_bpc);
|
|
+ ret = vc4_hdmi_encoder_compute_config(vc4_hdmi, vc4_state, mode);
|
|
if (ret)
|
|
return ret;
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
|
|
@@ -222,7 +222,8 @@ struct vc4_hdmi {
|
|
bool scdc_enabled;
|
|
|
|
/**
|
|
- * @output_bpc: BPC currently being used. Protected by @mutex.
|
|
+ * @output_bpc: Copy of @vc4_connector_state.output_bpc for use
|
|
+ * outside of KMS hooks. Protected by @mutex.
|
|
*/
|
|
unsigned int output_bpc;
|
|
|
|
@@ -252,6 +253,7 @@ encoder_to_vc4_hdmi(struct drm_encoder *
|
|
struct vc4_hdmi_connector_state {
|
|
struct drm_connector_state base;
|
|
unsigned long long pixel_rate;
|
|
+ unsigned int output_bpc;
|
|
};
|
|
|
|
static inline struct vc4_hdmi_connector_state *
|