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openwrt/target/linux/bcm27xx/patches-5.10/950-0701-drm-vc4-Fix-definition-of-PAL-M-mode.patch
Álvaro Fernández Rojas 8299d1f057 bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2021-08-21 19:07:07 +02:00

78 lines
2.6 KiB
Diff

From fd0b5aec6d320f10b869cae06b6f2c8ca650e8e2 Mon Sep 17 00:00:00 2001
From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Date: Thu, 15 Jul 2021 01:07:53 +0200
Subject: [PATCH] drm/vc4: Fix definition of PAL-M mode
PAL-M is a Brazilian analog TV standard that uses a PAL-style chroma
subcarrier at 3.575611[888111] MHz on top of 525-line (480i60) timings.
This commit makes the driver actually use the proper VEC preset for this
mode instead of just changing PAL subcarrier frequency.
DRM mode constant names have also been changed, as they no longer
correspond to the "NTSC" or "PAL" terms.
Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
---
drivers/gpu/drm/vc4/vc4_vec.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -68,6 +68,7 @@
#define VEC_CONFIG0_STD_MASK GENMASK(1, 0)
#define VEC_CONFIG0_NTSC_STD 0
#define VEC_CONFIG0_PAL_BDGHI_STD 1
+#define VEC_CONFIG0_PAL_M_STD 2
#define VEC_CONFIG0_PAL_N_STD 3
#define VEC_SCHPH 0x108
@@ -247,14 +248,14 @@ static const struct debugfs_reg32 vec_re
VC4_REG32(VEC_DAC_MISC),
};
-static const struct drm_display_mode ntsc_mode = {
+static const struct drm_display_mode drm_mode_480i = {
DRM_MODE("720x480", 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 pal_mode = {
+static const struct drm_display_mode drm_mode_576i = {
DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
576, 576 + 4, 576 + 4 + 6, 625, 0,
@@ -263,25 +264,24 @@ static const struct drm_display_mode pal
static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
[VC4_VEC_TV_MODE_NTSC] = {
- .mode = &ntsc_mode,
+ .mode = &drm_mode_480i,
.config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_NTSC_J] = {
- .mode = &ntsc_mode,
+ .mode = &drm_mode_480i,
.config0 = VEC_CONFIG0_NTSC_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL] = {
- .mode = &pal_mode,
+ .mode = &drm_mode_576i,
.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL_M] = {
- .mode = &pal_mode,
- .config0 = VEC_CONFIG0_PAL_BDGHI_STD,
- .config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
- .custom_freq = 0x223b61d1,
+ .mode = &drm_mode_480i,
+ .config0 = VEC_CONFIG0_PAL_M_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
};