[Intel-gfx] [PATCH v2 41/41] drm/sun4i: tv: Convert to the new TV mode property
Maxime Ripard
maxime at cerno.tech
Mon Aug 29 13:11:55 UTC 2022
Now that the core can deal fine with analog TV modes, let's convert the
sun4i TV driver to leverage those new features.
Signed-off-by: Maxime Ripard <maxime at cerno.tech>
diff --git a/drivers/gpu/drm/sun4i/sun4i_tv.c b/drivers/gpu/drm/sun4i/sun4i_tv.c
index 74ff5ad6a8b9..10c0d727d700 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tv.c
@@ -140,23 +140,14 @@ struct resync_parameters {
struct tv_mode {
char *name;
+ unsigned int tv_mode;
+
u32 mode;
u32 chroma_freq;
u16 back_porch;
u16 front_porch;
- u16 line_number;
u16 vblank_level;
- u32 hdisplay;
- u16 hfront_porch;
- u16 hsync_len;
- u16 hback_porch;
-
- u32 vdisplay;
- u16 vfront_porch;
- u16 vsync_len;
- u16 vback_porch;
-
bool yc_en;
bool dac3_en;
bool dac_bit25_en;
@@ -212,7 +203,7 @@ static const struct resync_parameters pal_resync_parameters = {
static const struct tv_mode tv_modes[] = {
{
- .name = "NTSC",
+ .tv_mode = DRM_MODE_TV_MODE_NTSC_M,
.mode = SUN4I_TVE_CFG0_RES_480i,
.chroma_freq = 0x21f07c1f,
.yc_en = true,
@@ -221,17 +212,6 @@ static const struct tv_mode tv_modes[] = {
.back_porch = 118,
.front_porch = 32,
- .line_number = 525,
-
- .hdisplay = 720,
- .hfront_porch = 18,
- .hsync_len = 2,
- .hback_porch = 118,
-
- .vdisplay = 480,
- .vfront_porch = 26,
- .vsync_len = 2,
- .vback_porch = 17,
.vblank_level = 240,
@@ -241,23 +221,12 @@ static const struct tv_mode tv_modes[] = {
.resync_params = &ntsc_resync_parameters,
},
{
- .name = "PAL",
+ .tv_mode = DRM_MODE_TV_MODE_PAL_B,
.mode = SUN4I_TVE_CFG0_RES_576i,
.chroma_freq = 0x2a098acb,
.back_porch = 138,
.front_porch = 24,
- .line_number = 625,
-
- .hdisplay = 720,
- .hfront_porch = 3,
- .hsync_len = 2,
- .hback_porch = 139,
-
- .vdisplay = 576,
- .vfront_porch = 28,
- .vsync_len = 2,
- .vback_porch = 19,
.vblank_level = 252,
@@ -275,63 +244,21 @@ drm_encoder_to_sun4i_tv(struct drm_encoder *encoder)
encoder);
}
-/*
- * FIXME: If only the drm_display_mode private field was usable, this
- * could go away...
- *
- * So far, it doesn't seem to be preserved when the mode is passed by
- * to mode_set for some reason.
- */
-static const struct tv_mode *sun4i_tv_find_tv_by_mode(const struct drm_display_mode *mode)
+static const struct tv_mode *
+sun4i_tv_find_tv_by_mode(unsigned int mode)
{
int i;
- /* First try to identify the mode by name */
for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
const struct tv_mode *tv_mode = &tv_modes[i];
- DRM_DEBUG_DRIVER("Comparing mode %s vs %s",
- mode->name, tv_mode->name);
-
- if (!strcmp(mode->name, tv_mode->name))
- return tv_mode;
- }
-
- /* Then by number of lines */
- for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
- const struct tv_mode *tv_mode = &tv_modes[i];
-
- DRM_DEBUG_DRIVER("Comparing mode %s vs %s (X: %d vs %d)",
- mode->name, tv_mode->name,
- mode->vdisplay, tv_mode->vdisplay);
-
- if (mode->vdisplay == tv_mode->vdisplay)
+ if (tv_mode->tv_mode == mode)
return tv_mode;
}
return NULL;
}
-static void sun4i_tv_mode_to_drm_mode(const struct tv_mode *tv_mode,
- struct drm_display_mode *mode)
-{
- DRM_DEBUG_DRIVER("Creating mode %s\n", mode->name);
-
- mode->type = DRM_MODE_TYPE_DRIVER;
- mode->clock = 13500;
- mode->flags = DRM_MODE_FLAG_INTERLACE;
-
- mode->hdisplay = tv_mode->hdisplay;
- mode->hsync_start = mode->hdisplay + tv_mode->hfront_porch;
- mode->hsync_end = mode->hsync_start + tv_mode->hsync_len;
- mode->htotal = mode->hsync_end + tv_mode->hback_porch;
-
- mode->vdisplay = tv_mode->vdisplay;
- mode->vsync_start = mode->vdisplay + tv_mode->vfront_porch;
- mode->vsync_end = mode->vsync_start + tv_mode->vsync_len;
- mode->vtotal = mode->vsync_end + tv_mode->vback_porch;
-}
-
static void sun4i_tv_disable(struct drm_encoder *encoder,
struct drm_atomic_state *state)
{
@@ -355,7 +282,11 @@ static void sun4i_tv_enable(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state =
drm_atomic_get_new_crtc_state(state, encoder->crtc);
struct drm_display_mode *mode = &crtc_state->mode;
- const struct tv_mode *tv_mode = sun4i_tv_find_tv_by_mode(mode);
+ struct drm_connector *connector = &tv->connector;
+ struct drm_connector_state *conn_state =
+ drm_atomic_get_new_connector_state(state, connector);
+ const struct tv_mode *tv_mode =
+ sun4i_tv_find_tv_by_mode(conn_state->tv.mode);
DRM_DEBUG_DRIVER("Enabling the TV Output\n");
@@ -403,7 +334,7 @@ static void sun4i_tv_enable(struct drm_encoder *encoder,
/* Set the lines setup */
regmap_write(tv->regs, SUN4I_TVE_LINE_REG,
SUN4I_TVE_LINE_FIRST(22) |
- SUN4I_TVE_LINE_NUMBER(tv_mode->line_number));
+ SUN4I_TVE_LINE_NUMBER(mode->vtotal));
regmap_write(tv->regs, SUN4I_TVE_LEVEL_REG,
SUN4I_TVE_LEVEL_BLANK(tv_mode->video_levels->blank) |
@@ -466,35 +397,45 @@ static const struct drm_encoder_helper_funcs sun4i_tv_helper_funcs = {
static int sun4i_tv_comp_get_modes(struct drm_connector *connector)
{
- int i;
+ struct drm_display_mode *mode;
+ int count = 0;
- for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
- struct drm_display_mode *mode;
- const struct tv_mode *tv_mode = &tv_modes[i];
-
- mode = drm_mode_create(connector->dev);
- if (!mode) {
- DRM_ERROR("Failed to create a new display mode\n");
- return 0;
- }
+ mode = drm_mode_analog_ntsc_480i(connector->dev);
+ if (!mode) {
+ DRM_ERROR("Failed to create a new display mode\n");
+ return -ENOMEM;
+ }
- strcpy(mode->name, tv_mode->name);
+ drm_mode_probed_add(connector, mode);
+ count += 1;
- sun4i_tv_mode_to_drm_mode(tv_mode, mode);
- drm_mode_probed_add(connector, mode);
+ mode = drm_mode_analog_pal_576i(connector->dev);
+ if (!mode) {
+ DRM_ERROR("Failed to create a new display mode\n");
+ return -ENOMEM;
}
- return i;
+ drm_mode_probed_add(connector, mode);
+ count += 1;
+
+ return count;
}
static const struct drm_connector_helper_funcs sun4i_tv_comp_connector_helper_funcs = {
+ .atomic_check = drm_atomic_helper_connector_tv_check,
.get_modes = sun4i_tv_comp_get_modes,
};
+static void sun4i_tv_connector_reset(struct drm_connector *connector)
+{
+ drm_atomic_helper_connector_reset(connector);
+ drm_atomic_helper_connector_tv_reset(connector);
+}
+
static const struct drm_connector_funcs sun4i_tv_comp_connector_funcs = {
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = drm_connector_cleanup,
- .reset = drm_atomic_helper_connector_reset,
+ .reset = sun4i_tv_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
@@ -586,8 +527,20 @@ static int sun4i_tv_bind(struct device *dev, struct device *master,
drm_connector_attach_encoder(&tv->connector, &tv->encoder);
+ ret = drm_mode_create_tv_properties(drm,
+ BIT(DRM_MODE_TV_MODE_NTSC_M) |
+ BIT(DRM_MODE_TV_MODE_PAL_B));
+ if (ret)
+ goto err_cleanup_connector;
+
+ drm_object_attach_property(&connector->base,
+ dev->mode_config.tv_mode_property,
+ DRM_MODE_TV_MODE_NTSC_M);
+
return 0;
+err_cleanup_connector:
+ drm_connector_cleanup(&tv->connector);
err_cleanup_encoder:
drm_encoder_cleanup(&tv->encoder);
err_disable_clk:
--
b4 0.10.0-dev-65ba7
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