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path: root/drivers/gpu/drm/drm_modes.c
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Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
-rw-r--r--drivers/gpu/drm/drm_modes.c82
1 files changed, 53 insertions, 29 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 893f52ee4926..e72f855fc495 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -373,8 +373,8 @@ static int fill_analog_mode(struct drm_device *dev,
if (!bt601 &&
(hact_duration_ns < params->hact_ns.min ||
hact_duration_ns > params->hact_ns.max)) {
- DRM_ERROR("Invalid horizontal active area duration: %uns (min: %u, max %u)\n",
- hact_duration_ns, params->hact_ns.min, params->hact_ns.max);
+ drm_err(dev, "Invalid horizontal active area duration: %uns (min: %u, max %u)\n",
+ hact_duration_ns, params->hact_ns.min, params->hact_ns.max);
return -EINVAL;
}
@@ -385,8 +385,8 @@ static int fill_analog_mode(struct drm_device *dev,
if (!bt601 &&
(hblk_duration_ns < params->hblk_ns.min ||
hblk_duration_ns > params->hblk_ns.max)) {
- DRM_ERROR("Invalid horizontal blanking duration: %uns (min: %u, max %u)\n",
- hblk_duration_ns, params->hblk_ns.min, params->hblk_ns.max);
+ drm_err(dev, "Invalid horizontal blanking duration: %uns (min: %u, max %u)\n",
+ hblk_duration_ns, params->hblk_ns.min, params->hblk_ns.max);
return -EINVAL;
}
@@ -397,8 +397,8 @@ static int fill_analog_mode(struct drm_device *dev,
if (!bt601 &&
(hslen_duration_ns < params->hslen_ns.min ||
hslen_duration_ns > params->hslen_ns.max)) {
- DRM_ERROR("Invalid horizontal sync duration: %uns (min: %u, max %u)\n",
- hslen_duration_ns, params->hslen_ns.min, params->hslen_ns.max);
+ drm_err(dev, "Invalid horizontal sync duration: %uns (min: %u, max %u)\n",
+ hslen_duration_ns, params->hslen_ns.min, params->hslen_ns.max);
return -EINVAL;
}
@@ -409,7 +409,8 @@ static int fill_analog_mode(struct drm_device *dev,
if (!bt601 &&
(porches_duration_ns > (params->hfp_ns.max + params->hbp_ns.max) ||
porches_duration_ns < (params->hfp_ns.min + params->hbp_ns.min))) {
- DRM_ERROR("Invalid horizontal porches duration: %uns\n", porches_duration_ns);
+ drm_err(dev, "Invalid horizontal porches duration: %uns\n",
+ porches_duration_ns);
return -EINVAL;
}
@@ -431,8 +432,8 @@ static int fill_analog_mode(struct drm_device *dev,
if (!bt601 &&
(hfp_duration_ns < params->hfp_ns.min ||
hfp_duration_ns > params->hfp_ns.max)) {
- DRM_ERROR("Invalid horizontal front porch duration: %uns (min: %u, max %u)\n",
- hfp_duration_ns, params->hfp_ns.min, params->hfp_ns.max);
+ drm_err(dev, "Invalid horizontal front porch duration: %uns (min: %u, max %u)\n",
+ hfp_duration_ns, params->hfp_ns.min, params->hfp_ns.max);
return -EINVAL;
}
@@ -443,8 +444,8 @@ static int fill_analog_mode(struct drm_device *dev,
if (!bt601 &&
(hbp_duration_ns < params->hbp_ns.min ||
hbp_duration_ns > params->hbp_ns.max)) {
- DRM_ERROR("Invalid horizontal back porch duration: %uns (min: %u, max %u)\n",
- hbp_duration_ns, params->hbp_ns.min, params->hbp_ns.max);
+ drm_err(dev, "Invalid horizontal back porch duration: %uns (min: %u, max %u)\n",
+ hbp_duration_ns, params->hbp_ns.min, params->hbp_ns.max);
return -EINVAL;
}
@@ -495,8 +496,8 @@ static int fill_analog_mode(struct drm_device *dev,
vtotal = vactive + vfp + vslen + vbp;
if (params->num_lines != vtotal) {
- DRM_ERROR("Invalid vertical total: %upx (expected %upx)\n",
- vtotal, params->num_lines);
+ drm_err(dev, "Invalid vertical total: %upx (expected %upx)\n",
+ vtotal, params->num_lines);
return -EINVAL;
}
@@ -530,14 +531,14 @@ static int fill_analog_mode(struct drm_device *dev,
* @interlace: whether to compute an interlaced mode
*
* This function creates a struct drm_display_mode instance suited for
- * an analog TV output, for one of the usual analog TV mode.
+ * an analog TV output, for one of the usual analog TV modes. Where
+ * this is DRM_MODE_TV_MODE_MONOCHROME, a 625-line mode will be created.
*
* Note that @hdisplay is larger than the usual constraints for the PAL
* and NTSC timings, and we'll choose to ignore most timings constraints
* to reach those resolutions.
*
* Returns:
- *
* A pointer to the mode, allocated with drm_mode_create(). Returns NULL
* on error.
*/
@@ -568,6 +569,8 @@ struct drm_display_mode *drm_analog_tv_mode(struct drm_device *dev,
case DRM_MODE_TV_MODE_PAL_N:
fallthrough;
case DRM_MODE_TV_MODE_SECAM:
+ fallthrough;
+ case DRM_MODE_TV_MODE_MONOCHROME:
analog = DRM_MODE_ANALOG_PAL;
break;
@@ -1200,9 +1203,8 @@ int of_get_drm_display_mode(struct device_node *np,
if (bus_flags)
drm_bus_flags_from_videomode(&vm, bus_flags);
- pr_debug("%pOF: got %dx%d display mode\n",
- np, vm.hactive, vm.vactive);
- drm_mode_debug_printmodeline(dmode);
+ pr_debug("%pOF: got %dx%d display mode: " DRM_MODE_FMT "\n",
+ np, vm.hactive, vm.vactive, DRM_MODE_ARG(dmode));
return 0;
}
@@ -1250,7 +1252,7 @@ int of_get_drm_panel_display_mode(struct device_node *np,
dmode->width_mm = width_mm;
dmode->height_mm = height_mm;
- drm_mode_debug_printmodeline(dmode);
+ pr_debug(DRM_MODE_FMT "\n", DRM_MODE_ARG(dmode));
return 0;
}
@@ -1280,19 +1282,15 @@ EXPORT_SYMBOL(drm_mode_set_name);
* @mode: mode
*
* Returns:
- * @modes's vrefresh rate in Hz, rounded to the nearest integer. Calculates the
- * value first if it is not yet set.
+ * @modes's vrefresh rate in Hz, rounded to the nearest integer.
*/
int drm_mode_vrefresh(const struct drm_display_mode *mode)
{
- unsigned int num, den;
+ unsigned int num = 1, den = 1;
if (mode->htotal == 0 || mode->vtotal == 0)
return 0;
- num = mode->clock;
- den = mode->htotal * mode->vtotal;
-
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
num *= 2;
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
@@ -1300,6 +1298,12 @@ int drm_mode_vrefresh(const struct drm_display_mode *mode)
if (mode->vscan > 1)
den *= mode->vscan;
+ if (check_mul_overflow(mode->clock, num, &num))
+ return 0;
+
+ if (check_mul_overflow(mode->htotal * mode->vtotal, den, &den))
+ return 0;
+
return DIV_ROUND_CLOSEST_ULL(mul_u32_u32(num, 1000), den);
}
EXPORT_SYMBOL(drm_mode_vrefresh);
@@ -1812,10 +1816,8 @@ void drm_mode_prune_invalid(struct drm_device *dev,
DRM_MODE_FMT "\n", DRM_MODE_ARG(mode));
}
if (verbose) {
- drm_mode_debug_printmodeline(mode);
- DRM_DEBUG_KMS("Not using %s mode: %s\n",
- mode->name,
- drm_get_mode_status_name(mode->status));
+ drm_dbg_kms(dev, "Rejected mode: " DRM_MODE_FMT " (%s)\n",
+ DRM_MODE_ARG(mode), drm_get_mode_status_name(mode->status));
}
drm_mode_destroy(dev, mode);
}
@@ -2752,3 +2754,25 @@ bool drm_mode_is_420(const struct drm_display_info *display,
drm_mode_is_420_also(display, mode);
}
EXPORT_SYMBOL(drm_mode_is_420);
+
+/**
+ * drm_set_preferred_mode - Sets the preferred mode of a connector
+ * @connector: connector whose mode list should be processed
+ * @hpref: horizontal resolution of preferred mode
+ * @vpref: vertical resolution of preferred mode
+ *
+ * Marks a mode as preferred if it matches the resolution specified by @hpref
+ * and @vpref.
+ */
+void drm_set_preferred_mode(struct drm_connector *connector,
+ int hpref, int vpref)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, &connector->probed_modes, head) {
+ if (mode->hdisplay == hpref &&
+ mode->vdisplay == vpref)
+ mode->type |= DRM_MODE_TYPE_PREFERRED;
+ }
+}
+EXPORT_SYMBOL(drm_set_preferred_mode);
generated by cgit (git 2.34.1) at 2025-07-27 01:28:37 +0000