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openwrt/target/linux/bcm27xx/patches-6.6/950-0874-drm-rp1-Use-tv_mode-from-the-command-line-and-fix-fo.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches 
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

329 lines
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From 272ac64c598d83c4025393398b431db0a4656a74 Mon Sep 17 00:00:00 2001
From: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Date: Tue, 23 Jan 2024 18:45:51 +0000
Subject: [PATCH 0874/1085] drm: rp1: Use tv_mode from the command line and fix
for Linux 6.6
Use the standard enum drm_connector_tv_mode instead of a private
enum and switch from the legacy to the standard tv_mode property.
Remove the module parameter "tv_norm". Instead, get tv_mode from
the command line and make this the connector's default TV mode.
Don't restrict the choice of modes based on tv_mode, but interpret
nonstandard combinations as NTSC or PAL, depending on resolution.
Thus the default tv_mode=NTSC effectively means "Auto".
Tweak the advertised horizontal timings for 625/50 to match Rec.601
Signed-off-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
---
drivers/gpu/drm/rp1/rp1-vec/rp1_vec.c | 134 ++++++++---------------
drivers/gpu/drm/rp1/rp1-vec/rp1_vec.h | 24 ++--
drivers/gpu/drm/rp1/rp1-vec/rp1_vec_hw.c | 15 +--
3 files changed, 63 insertions(+), 110 deletions(-)
--- a/drivers/gpu/drm/rp1/rp1-vec/rp1_vec.c
+++ b/drivers/gpu/drm/rp1/rp1-vec/rp1_vec.c
@@ -48,52 +48,6 @@
#include "rp1_vec.h"
-/*
- * Default TV standard parameter; it may be overridden by the OF
- * property "tv_norm" (which should be one of the strings below).
- *
- * The default (empty string) supports various 60Hz and 50Hz modes,
- * and will automatically select NTSC[-M] or PAL[-BDGHIKL]; the two
- * "fake" 60Hz standards NTSC-443 and PAL60 also support 50Hz PAL.
- * Other values will restrict the set of video modes offered.
- *
- * Finally, the DRM connector property "mode" (which is an integer)
- * can be used to override this value, but it does not prevent the
- * selection of an inapplicable video mode.
- */
-
-static char *rp1vec_tv_norm_str;
-module_param_named(tv_norm, rp1vec_tv_norm_str, charp, 0600);
-MODULE_PARM_DESC(tv_norm, "Default TV norm.\n"
- "\t\tSupported: NTSC, NTSC-J, NTSC-443, PAL, PAL-M, PAL-N,\n"
- "\t\t\tPAL60.\n"
- "\t\tDefault: empty string: infer PAL for a 50 Hz mode,\n"
- "\t\t\tNTSC otherwise");
-
-const char * const rp1vec_tvstd_names[] = {
- [RP1VEC_TVSTD_NTSC] = "NTSC",
- [RP1VEC_TVSTD_NTSC_J] = "NTSC-J",
- [RP1VEC_TVSTD_NTSC_443] = "NTSC-443",
- [RP1VEC_TVSTD_PAL] = "PAL",
- [RP1VEC_TVSTD_PAL_M] = "PAL-M",
- [RP1VEC_TVSTD_PAL_N] = "PAL-N",
- [RP1VEC_TVSTD_PAL60] = "PAL60",
- [RP1VEC_TVSTD_DEFAULT] = "",
-};
-
-static int rp1vec_parse_tv_norm(const char *str)
-{
- int i;
-
- if (str && *str) {
- for (i = 0; i < ARRAY_SIZE(rp1vec_tvstd_names); ++i) {
- if (strcasecmp(str, rp1vec_tvstd_names[i]) == 0)
- return i;
- }
- }
- return RP1VEC_TVSTD_DEFAULT;
-}
-
static void rp1vec_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
@@ -143,7 +97,7 @@ static void rp1vec_pipe_update(struct dr
static void rp1vec_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
- struct drm_plane_state *plane_state)
+ struct drm_plane_state *plane_state)
{
struct rp1_vec *vec = pipe->crtc.dev->dev_private;
@@ -219,48 +173,64 @@ static const struct drm_display_mode rp1
},
{ /* Full size 625/50i with Rec.601 pixel rate */
DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500,
- 720, 720 + 20, 720 + 20 + 64, 864, 0,
+ 720, 720 + 12, 720 + 12 + 64, 864, 0,
576, 576 + 5, 576 + 5 + 5, 625, 0,
DRM_MODE_FLAG_INTERLACE)
},
{ /* Cropped and squashed, for square(ish) pixels */
DRM_MODE("704x512i", DRM_MODE_TYPE_DRIVER, 15429,
- 704, 704 + 80, 704 + 80 + 72, 987, 0,
+ 704, 704 + 72, 704 + 72 + 72, 987, 0,
512, 512 + 37, 512 + 37 + 5, 625, 0,
DRM_MODE_FLAG_INTERLACE)
}
};
+/*
+ * Advertise standard and preferred video modes.
+ *
+ * From each interlaced mode in the table above, derive a progressive one.
+ *
+ * This driver always supports all 50Hz and 60Hz video modes, regardless
+ * of connector's tv_mode; nonstandard combinations generally default
+ * to PAL[-BDGHIKL] or NTSC[-M] depending on resolution and field-rate
+ * (except that "PAL" with 525/60 will be implemented as "PAL60").
+ * However, the preferred mode will depend on the default TV mode.
+ */
+
static int rp1vec_connector_get_modes(struct drm_connector *connector)
{
- struct rp1_vec *vec = container_of(connector, struct rp1_vec, connector);
- bool ok525 = RP1VEC_TVSTD_SUPPORT_525(vec->tv_norm);
- bool ok625 = RP1VEC_TVSTD_SUPPORT_625(vec->tv_norm);
+ u64 val;
int i, prog, n = 0;
+ bool prefer625 = false;
+
+ if (!drm_object_property_get_default_value(&connector->base,
+ connector->dev->mode_config.tv_mode_property,
+ &val))
+ prefer625 = (val == DRM_MODE_TV_MODE_PAL ||
+ val == DRM_MODE_TV_MODE_PAL_N ||
+ val == DRM_MODE_TV_MODE_SECAM);
for (i = 0; i < ARRAY_SIZE(rp1vec_modes); i++) {
- if ((rp1vec_modes[i].vtotal == 625) ? ok625 : ok525) {
- for (prog = 0; prog < 2; prog++) {
- struct drm_display_mode *mode =
- drm_mode_duplicate(connector->dev,
- &rp1vec_modes[i]);
-
- if (prog) {
- mode->flags &= ~DRM_MODE_FLAG_INTERLACE;
- mode->vdisplay >>= 1;
- mode->vsync_start >>= 1;
- mode->vsync_end >>= 1;
- mode->vtotal >>= 1;
- }
-
- if (mode->hdisplay == 704 &&
- mode->vtotal == ((ok525) ? 525 : 625))
- mode->type |= DRM_MODE_TYPE_PREFERRED;
-
- drm_mode_set_name(mode);
- drm_mode_probed_add(connector, mode);
- n++;
+ for (prog = 0; prog < 2; prog++) {
+ struct drm_display_mode *mode =
+ drm_mode_duplicate(connector->dev,
+ &rp1vec_modes[i]);
+
+ if (prog) {
+ mode->flags &= ~DRM_MODE_FLAG_INTERLACE;
+ mode->vdisplay >>= 1;
+ mode->vsync_start >>= 1;
+ mode->vsync_end >>= 1;
+ mode->vtotal >>= 1;
}
+
+ if (mode->hdisplay == 704 &&
+ mode->vtotal == (prefer625 ? 625 : 525))
+ mode->type |= DRM_MODE_TYPE_PREFERRED;
+
+ drm_mode_set_name(mode);
+ drm_mode_probed_add(connector, mode);
+ n++;
}
}
@@ -269,11 +239,8 @@ static int rp1vec_connector_get_modes(st
static void rp1vec_connector_reset(struct drm_connector *connector)
{
- struct rp1_vec *vec = container_of(connector, struct rp1_vec, connector);
-
drm_atomic_helper_connector_reset(connector);
- if (connector->state)
- connector->state->tv.mode = vec->tv_norm;
+ drm_atomic_helper_connector_tv_reset(connector);
}
static int rp1vec_connector_atomic_check(struct drm_connector *conn,
@@ -396,7 +363,6 @@ static int rp1vec_platform_probe(struct
struct device *dev = &pdev->dev;
struct drm_device *drm;
struct rp1_vec *vec;
- const char *str;
int i, ret;
dev_info(dev, __func__);
@@ -419,10 +385,6 @@ static int rp1vec_platform_probe(struct
drm->dev_private = vec;
platform_set_drvdata(pdev, drm);
- str = rp1vec_tv_norm_str;
- of_property_read_string(dev->of_node, "tv_norm", &str);
- vec->tv_norm = rp1vec_parse_tv_norm(str);
-
for (i = 0; i < RP1VEC_NUM_HW_BLOCKS; i++) {
vec->hw_base[i] =
devm_ioremap_resource(dev,
@@ -463,9 +425,7 @@ static int rp1vec_platform_probe(struct
drm->mode_config.funcs = &rp1vec_mode_funcs;
drm_vblank_init(drm, 1);
- ret = drm_mode_create_tv_properties_legacy(drm,
- ARRAY_SIZE(rp1vec_tvstd_names),
- rp1vec_tvstd_names);
+ ret = drm_mode_create_tv_properties(drm, RP1VEC_SUPPORTED_TV_MODES);
if (ret)
goto err_free_drm;
@@ -479,7 +439,9 @@ static int rp1vec_platform_probe(struct
drm_object_attach_property(&vec->connector.base,
drm->mode_config.tv_mode_property,
- vec->tv_norm);
+ (vec->connector.cmdline_mode.tv_mode_specified) ?
+ vec->connector.cmdline_mode.tv_mode :
+ DRM_MODE_TV_MODE_NTSC);
ret = drm_simple_display_pipe_init(drm,
&vec->pipe,
--- a/drivers/gpu/drm/rp1/rp1-vec/rp1_vec.h
+++ b/drivers/gpu/drm/rp1/rp1-vec/rp1_vec.h
@@ -20,20 +20,13 @@
#define RP1VEC_HW_BLOCK_CFG 1
#define RP1VEC_NUM_HW_BLOCKS 2
-enum {
- RP1VEC_TVSTD_NTSC = 0, /* +525 => NTSC 625 => PAL */
- RP1VEC_TVSTD_NTSC_J, /* +525 => NTSC-J 625 => PAL */
- RP1VEC_TVSTD_NTSC_443, /* +525 => NTSC-443 +625 => PAL */
- RP1VEC_TVSTD_PAL, /* 525 => NTSC +625 => PAL */
- RP1VEC_TVSTD_PAL_M, /* +525 => PAL-M 625 => PAL */
- RP1VEC_TVSTD_PAL_N, /* 525 => NTSC +625 => PAL-N */
- RP1VEC_TVSTD_PAL60, /* +525 => PAL60 +625 => PAL */
- RP1VEC_TVSTD_DEFAULT, /* +525 => NTSC +625 => PAL */
-};
-
-/* Which standards support which modes? Those marked with + above */
-#define RP1VEC_TVSTD_SUPPORT_525(n) ((0xD7 >> (n)) & 1)
-#define RP1VEC_TVSTD_SUPPORT_625(n) ((0xEC >> (n)) & 1)
+#define RP1VEC_SUPPORTED_TV_MODES \
+ (BIT(DRM_MODE_TV_MODE_NTSC) | \
+ BIT(DRM_MODE_TV_MODE_NTSC_443) | \
+ BIT(DRM_MODE_TV_MODE_NTSC_J) | \
+ BIT(DRM_MODE_TV_MODE_PAL) | \
+ BIT(DRM_MODE_TV_MODE_PAL_M) | \
+ BIT(DRM_MODE_TV_MODE_PAL_N))
/* ---------------------------------------------------------------------- */
@@ -52,13 +45,10 @@ struct rp1_vec {
/* Block (VCC, CFG) base addresses, and current state */
void __iomem *hw_base[RP1VEC_NUM_HW_BLOCKS];
u32 cur_fmt;
- int tv_norm;
bool vec_running, pipe_enabled;
struct completion finished;
};
-extern const char * const rp1vec_tvstd_names[];
-
/* ---------------------------------------------------------------------- */
/* Functions to control the VEC/DMA block */
--- a/drivers/gpu/drm/rp1/rp1-vec/rp1_vec_hw.c
+++ b/drivers/gpu/drm/rp1/rp1-vec/rp1_vec_hw.c
@@ -337,16 +337,17 @@ void rp1vec_hw_setup(struct rp1_vec *vec
mode_ilaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
if (mode->vtotal >= 272 * (1 + mode_ilaced))
mode_family = 1;
+ else if (tvstd == DRM_MODE_TV_MODE_PAL_M || tvstd == DRM_MODE_TV_MODE_PAL)
+ mode_family = 2;
else
- mode_family = (tvstd == RP1VEC_TVSTD_PAL_M || tvstd == RP1VEC_TVSTD_PAL60) ? 2 : 0;
+ mode_family = 0;
mode_narrow = (mode->clock >= 14336);
hwm = &rp1vec_hwmodes[mode_family][mode_ilaced][mode_narrow];
dev_info(&vec->pdev->dev,
- "%s: in_fmt=\'%c%c%c%c\' mode=%dx%d%s [%d%d%d] tvstd=%d (%s)",
+ "%s: in_fmt=\'%c%c%c%c\' mode=%dx%d%s [%d%d%d] tvstd=%d",
__func__, in_format, in_format >> 8, in_format >> 16, in_format >> 24,
mode->hdisplay, mode->vdisplay, (mode_ilaced) ? "i" : "",
- mode_family, mode_ilaced, mode_narrow,
- tvstd, rp1vec_tvstd_names[tvstd]);
+ mode_family, mode_ilaced, mode_narrow, tvstd);
w = mode->hdisplay;
h = mode->vdisplay >> mode_ilaced;
@@ -405,7 +406,7 @@ void rp1vec_hw_setup(struct rp1_vec *vec
}
/* Apply modifications */
- if (tvstd == RP1VEC_TVSTD_NTSC_J && mode_family == 0) {
+ if (tvstd == DRM_MODE_TV_MODE_NTSC_J && mode_family == 0) {
/* Reduce pedestal (not quite to zero, for FIR overshoot); increase gain */
VEC_WRITE(VEC_DAC_BC,
BITS(VEC_DAC_BC_S11_PEDESTAL, 10) |
@@ -414,14 +415,14 @@ void rp1vec_hw_setup(struct rp1_vec *vec
BITS(VEC_DAC_C8_U16_SCALE_LUMA, 0x9400) |
(hwm->back_end_regs[(0xC8 - 0x80) / 4] &
~VEC_DAC_C8_U16_SCALE_LUMA_BITS));
- } else if ((tvstd == RP1VEC_TVSTD_NTSC_443 || tvstd == RP1VEC_TVSTD_PAL60) &&
+ } else if ((tvstd == DRM_MODE_TV_MODE_NTSC_443 || tvstd == DRM_MODE_TV_MODE_PAL) &&
mode_family != 1) {
/* Change colour carrier frequency to 4433618.75 Hz; disable hard sync */
VEC_WRITE(VEC_DAC_D4, 0xcc48c1d1);
VEC_WRITE(VEC_DAC_D8, 0x0a8262b2);
VEC_WRITE(VEC_DAC_EC,
hwm->back_end_regs[(0xEC - 0x80) / 4] & ~VEC_DAC_EC_SEQ_EN_BITS);
- } else if (tvstd == RP1VEC_TVSTD_PAL_N && mode_family == 1) {
+ } else if (tvstd == DRM_MODE_TV_MODE_PAL_N && mode_family == 1) {
/* Change colour carrier frequency to 3582056.25 Hz */
VEC_WRITE(VEC_DAC_D4, 0x9ce075f7);
VEC_WRITE(VEC_DAC_D8, 0x087da511);
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