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openwrt/target/linux/bcm27xx/patches-6.1/950-0016-drm-vc4-Make-VEC-progressive-modes-readily-accessibl.patch
Álvaro Fernández Rojas 793f8ab62c bcm27xx: 6.1: add kernel patches 
Add kernel patches for version 6.1.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-06-09 19:12:30 +02:00

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From bfd6f67af0450e29378d390386210ac91c5dcfce Mon Sep 17 00:00:00 2001
From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Date: Thu, 15 Jul 2021 01:08:11 +0200
Subject: [PATCH] drm/vc4: Make VEC progressive modes readily
accessible
Add predefined modelines for the 240p (NTSC) and 288p (PAL) progressive
modes, and report them through vc4_vec_connector_get_modes().
Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
---
drivers/gpu/drm/vc4/vc4_vec.c | 73 ++++++++++++++++++++++++++---------
1 file changed, 55 insertions(+), 18 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -228,7 +228,8 @@ enum vc4_vec_tv_mode_id {
};
struct vc4_vec_tv_mode {
- const struct drm_display_mode *mode;
+ const struct drm_display_mode *interlaced_mode;
+ const struct drm_display_mode *progressive_mode;
u32 config0;
u32 config1;
u32 custom_freq;
@@ -262,61 +263,81 @@ static const struct debugfs_reg32 vec_re
};
static const struct drm_display_mode drm_mode_480i = {
- DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
+ DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500,
720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
480, 480 + 7, 480 + 7 + 6, 525, 0,
DRM_MODE_FLAG_INTERLACE)
};
+static const struct drm_display_mode drm_mode_240p = {
+ DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500,
+ 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
+ 240, 240 + 3, 240 + 3 + 3, 262, 0, 0)
+};
+
static const struct drm_display_mode drm_mode_576i = {
- DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
+ DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500,
720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
576, 576 + 4, 576 + 4 + 6, 625, 0,
DRM_MODE_FLAG_INTERLACE)
};
+static const struct drm_display_mode drm_mode_288p = {
+ DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500,
+ 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
+ 288, 288 + 2, 288 + 2 + 3, 312, 0, 0)
+};
+
static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
[VC4_VEC_TV_MODE_NTSC] = {
- .mode = &drm_mode_480i,
+ .interlaced_mode = &drm_mode_480i,
+ .progressive_mode = &drm_mode_240p,
.config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_NTSC_J] = {
- .mode = &drm_mode_480i,
+ .interlaced_mode = &drm_mode_480i,
+ .progressive_mode = &drm_mode_240p,
.config0 = VEC_CONFIG0_NTSC_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_NTSC_443] = {
/* NTSC with PAL chroma frequency */
- .mode = &drm_mode_480i,
+ .interlaced_mode = &drm_mode_480i,
+ .progressive_mode = &drm_mode_240p,
.config0 = VEC_CONFIG0_NTSC_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
.custom_freq = 0x2a098acb,
},
[VC4_VEC_TV_MODE_PAL] = {
- .mode = &drm_mode_576i,
+ .interlaced_mode = &drm_mode_576i,
+ .progressive_mode = &drm_mode_288p,
.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL_M] = {
- .mode = &drm_mode_480i,
+ .interlaced_mode = &drm_mode_480i,
+ .progressive_mode = &drm_mode_240p,
.config0 = VEC_CONFIG0_PAL_M_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL_N] = {
- .mode = &drm_mode_576i,
+ .interlaced_mode = &drm_mode_576i,
+ .progressive_mode = &drm_mode_288p,
.config0 = VEC_CONFIG0_PAL_N_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL60] = {
/* PAL-M with chroma frequency of regular PAL */
- .mode = &drm_mode_480i,
+ .interlaced_mode = &drm_mode_480i,
+ .progressive_mode = &drm_mode_240p,
.config0 = VEC_CONFIG0_PAL_M_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
.custom_freq = 0x2a098acb,
},
[VC4_VEC_TV_MODE_SECAM] = {
- .mode = &drm_mode_576i,
+ .interlaced_mode = &drm_mode_576i,
+ .progressive_mode = &drm_mode_288p,
.config0 = VEC_CONFIG0_SECAM_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
.custom_freq = 0x29c71c72,
@@ -370,16 +391,32 @@ vc4_vec_connector_detect(struct drm_conn
static int vc4_vec_connector_get_modes(struct drm_connector *connector)
{
struct drm_connector_state *state = connector->state;
- struct drm_display_mode *mode;
+ struct drm_display_mode *interlaced_mode, *progressive_mode;
- mode = drm_mode_duplicate(connector->dev,
- vc4_vec_tv_modes[state->tv.mode].mode);
- if (!mode) {
+ interlaced_mode =
+ drm_mode_duplicate(connector->dev,
+ vc4_vec_tv_modes[state->tv.mode].interlaced_mode);
+ progressive_mode =
+ drm_mode_duplicate(connector->dev,
+ vc4_vec_tv_modes[state->tv.mode].progressive_mode);
+ if (!interlaced_mode || !progressive_mode) {
DRM_ERROR("Failed to create a new display mode\n");
+ drm_mode_destroy(connector->dev, interlaced_mode);
+ drm_mode_destroy(connector->dev, progressive_mode);
return -ENOMEM;
}
- drm_mode_probed_add(connector, mode);
+ if (connector->cmdline_mode.specified &&
+ connector->cmdline_mode.refresh_specified &&
+ !connector->cmdline_mode.interlace)
+ /* progressive mode set at boot, let's make it preferred */
+ progressive_mode->type |= DRM_MODE_TYPE_PREFERRED;
+ else
+ /* otherwise, interlaced mode is preferred */
+ interlaced_mode->type |= DRM_MODE_TYPE_PREFERRED;
+
+ drm_mode_probed_add(connector, interlaced_mode);
+ drm_mode_probed_add(connector, progressive_mode);
return 1;
}
@@ -576,7 +613,7 @@ static int vc4_vec_encoder_atomic_check(
struct drm_connector_state *conn_state)
{
const struct drm_display_mode *reference_mode =
- vc4_vec_tv_modes[conn_state->tv.mode].mode;
+ vc4_vec_tv_modes[conn_state->tv.mode].interlaced_mode;
if (crtc_state->adjusted_mode.crtc_clock != reference_mode->clock ||
crtc_state->adjusted_mode.crtc_htotal != reference_mode->htotal ||
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