diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl
index 83dd0b043c285815c26553ee2cc764b2da3728c2..165749dec5aff96842ef3da31b28e9042d27494c 100644
--- a/Documentation/DocBook/drm.tmpl
+++ b/Documentation/DocBook/drm.tmpl
@@ -1895,8 +1895,8 @@ void intel_crt_init(struct drm_device *dev)
The function filters out modes larger than
max_width and max_height
- if specified. It then calls the connector
- mode_valid helper operation for each mode in
+ if specified. It then calls the optional connector
+ mode_valid helper operation for each mode in
the probed list to check whether the mode is valid for the connector.
@@ -2257,7 +2257,7 @@ void intel_crt_init(struct drm_device *dev)
Verify whether a mode is valid for the connector. Return MODE_OK for
supported modes and one of the enum drm_mode_status values (MODE_*)
- for unsupported modes. This operation is mandatory.
+ for unsupported modes. This operation is optional.
As the mode rejection reason is currently not used beside for
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index a4afdc8bb578b826979b16431efef7183dee8f1a..e599d64a262043fe252f001ca17396b1537db82c 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -743,12 +743,6 @@ static int ast_get_modes(struct drm_connector *connector)
return 0;
}
-static int ast_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
static void ast_connector_destroy(struct drm_connector *connector)
{
struct ast_connector *ast_connector = to_ast_connector(connector);
@@ -765,7 +759,6 @@ ast_connector_detect(struct drm_connector *connector, bool force)
}
static const struct drm_connector_helper_funcs ast_connector_helper_funcs = {
- .mode_valid = ast_mode_valid,
.get_modes = ast_get_modes,
.best_encoder = ast_best_single_encoder,
};
diff --git a/drivers/gpu/drm/bridge/ptn3460.c b/drivers/gpu/drm/bridge/ptn3460.c
index b171901a35538d7a958e8289df8631f29ae53a47..98fd17ae491690b3f63de688dae611bf617b529a 100644
--- a/drivers/gpu/drm/bridge/ptn3460.c
+++ b/drivers/gpu/drm/bridge/ptn3460.c
@@ -225,12 +225,6 @@ int ptn3460_get_modes(struct drm_connector *connector)
return num_modes;
}
-static int ptn3460_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
struct drm_encoder *ptn3460_best_encoder(struct drm_connector *connector)
{
struct ptn3460_bridge *ptn_bridge;
@@ -242,7 +236,6 @@ struct drm_encoder *ptn3460_best_encoder(struct drm_connector *connector)
struct drm_connector_helper_funcs ptn3460_connector_helper_funcs = {
.get_modes = ptn3460_get_modes,
- .mode_valid = ptn3460_mode_valid,
.best_encoder = ptn3460_best_encoder,
};
diff --git a/drivers/gpu/drm/cirrus/cirrus_mode.c b/drivers/gpu/drm/cirrus/cirrus_mode.c
index f59433b7610c560db846a9e330a3b3a1b87c1f0b..49332c5fe35b04a763923f3c44376276ec989338 100644
--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -505,13 +505,6 @@ static int cirrus_vga_get_modes(struct drm_connector *connector)
return count;
}
-static int cirrus_vga_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- /* Any mode we've added is valid */
- return MODE_OK;
-}
-
static struct drm_encoder *cirrus_connector_best_encoder(struct drm_connector
*connector)
{
@@ -546,7 +539,6 @@ static void cirrus_connector_destroy(struct drm_connector *connector)
struct drm_connector_helper_funcs cirrus_vga_connector_helper_funcs = {
.get_modes = cirrus_vga_get_modes,
- .mode_valid = cirrus_vga_mode_valid,
.best_encoder = cirrus_connector_best_encoder,
};
diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index ef7f0199a0f1e59a0aab8682325db1ab44ceffd6..68175b54504bf1518b294402b824666c19c60b6f 100644
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -363,7 +363,7 @@ static int drm_addmap_core(struct drm_device * dev, resource_size_t offset,
list->master = dev->primary->master;
*maplist = list;
return 0;
- }
+}
int drm_addmap(struct drm_device * dev, resource_size_t offset,
unsigned int size, enum drm_map_type type,
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index a3fe32439a5b2a0163f7a4b6f1b2a4542353851e..34f0bf18d80d44538f0a58fe61071a01775c07fe 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1145,16 +1145,19 @@ EXPORT_SYMBOL(drm_plane_cleanup);
*/
void drm_plane_force_disable(struct drm_plane *plane)
{
+ struct drm_framebuffer *old_fb = plane->fb;
int ret;
- if (!plane->fb)
+ if (!old_fb)
return;
ret = plane->funcs->disable_plane(plane);
- if (ret)
+ if (ret) {
DRM_ERROR("failed to disable plane with busy fb\n");
+ return;
+ }
/* disconnect the plane from the fb and crtc: */
- __drm_framebuffer_unreference(plane->fb);
+ __drm_framebuffer_unreference(old_fb);
plane->fb = NULL;
plane->crtc = NULL;
}
@@ -2122,9 +2125,13 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
if (!plane_req->fb_id) {
drm_modeset_lock_all(dev);
old_fb = plane->fb;
- plane->funcs->disable_plane(plane);
- plane->crtc = NULL;
- plane->fb = NULL;
+ ret = plane->funcs->disable_plane(plane);
+ if (!ret) {
+ plane->crtc = NULL;
+ plane->fb = NULL;
+ } else {
+ old_fb = NULL;
+ }
drm_modeset_unlock_all(dev);
goto out;
}
@@ -2193,16 +2200,18 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
}
drm_modeset_lock_all(dev);
+ old_fb = plane->fb;
ret = plane->funcs->update_plane(plane, crtc, fb,
plane_req->crtc_x, plane_req->crtc_y,
plane_req->crtc_w, plane_req->crtc_h,
plane_req->src_x, plane_req->src_y,
plane_req->src_w, plane_req->src_h);
if (!ret) {
- old_fb = plane->fb;
plane->crtc = crtc;
plane->fb = fb;
fb = NULL;
+ } else {
+ old_fb = NULL;
}
drm_modeset_unlock_all(dev);
@@ -2245,9 +2254,7 @@ int drm_mode_set_config_internal(struct drm_mode_set *set)
ret = crtc->funcs->set_config(set);
if (ret == 0) {
crtc->primary->crtc = crtc;
-
- /* crtc->fb must be updated by ->set_config, enforces this. */
- WARN_ON(fb != crtc->primary->fb);
+ crtc->primary->fb = fb;
}
list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index df281b54db0155fef51c700f62ad2dd20d22ab24..a8b78e7bde50f4408f28c69c6735982c2e7ad3b5 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -140,16 +140,10 @@ drm_encoder_disable(struct drm_encoder *encoder)
static void __drm_helper_disable_unused_functions(struct drm_device *dev)
{
struct drm_encoder *encoder;
- struct drm_connector *connector;
struct drm_crtc *crtc;
drm_warn_on_modeset_not_all_locked(dev);
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
- if (!connector->encoder)
- continue;
- }
-
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (!drm_helper_encoder_in_use(encoder)) {
drm_encoder_disable(encoder);
@@ -387,8 +381,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
}
EXPORT_SYMBOL(drm_crtc_helper_set_mode);
-
-static int
+static void
drm_crtc_helper_disable(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
@@ -417,7 +410,6 @@ drm_crtc_helper_disable(struct drm_crtc *crtc)
}
__drm_helper_disable_unused_functions(dev);
- return 0;
}
/**
@@ -468,7 +460,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
(int)set->num_connectors, set->x, set->y);
} else {
DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
- return drm_crtc_helper_disable(set->crtc);
+ drm_crtc_helper_disable(set->crtc);
+ return 0;
}
dev = set->crtc->dev;
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 4b6e6f3ba0a19cf10326110897ad665048da29f1..a13f1f51f68e7c7d6efcef521287c2c1d56ffadc 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -206,7 +206,7 @@ i2c_dp_aux_prepare_bus(struct i2c_adapter *adapter)
* i2c_dp_aux_add_bus() - register an i2c adapter using the aux ch helper
* @adapter: i2c adapter to register
*
- * This registers an i2c adapater that uses dp aux channel as it's underlaying
+ * This registers an i2c adapter that uses dp aux channel as it's underlaying
* transport. The driver needs to fill out the &i2c_algo_dp_aux_data structure
* and store it in the algo_data member of the @adapter argument. This will be
* used by the i2c over dp aux algorithm to drive the hardware.
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index d4e3f9d9370fec545a0cd7c3c8cb93e6d942789b..7a4fd2ed1280b5d23e1ac46a0c70672a873986e2 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -984,9 +984,13 @@ static const u8 edid_header[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
};
- /*
- * Sanity check the header of the base EDID block. Return 8 if the header
- * is perfect, down to 0 if it's totally wrong.
+/**
+ * drm_edid_header_is_valid - sanity check the header of the base EDID block
+ * @raw_edid: pointer to raw base EDID block
+ *
+ * Sanity check the header of the base EDID block.
+ *
+ * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
*/
int drm_edid_header_is_valid(const u8 *raw_edid)
{
@@ -1005,9 +1009,16 @@ module_param_named(edid_fixup, edid_fixup, int, 0400);
MODULE_PARM_DESC(edid_fixup,
"Minimum number of valid EDID header bytes (0-8, default 6)");
-/*
- * Sanity check the EDID block (base or extension). Return 0 if the block
- * doesn't check out, or 1 if it's valid.
+/**
+ * drm_edid_block_valid - Sanity check the EDID block (base or extension)
+ * @raw_edid: pointer to raw EDID block
+ * @block: type of block to validate (0 for base, extension otherwise)
+ * @print_bad_edid: if true, dump bad EDID blocks to the console
+ *
+ * Validate a base or extension EDID block and optionally dump bad blocks to
+ * the console.
+ *
+ * Return: True if the block is valid, false otherwise.
*/
bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
{
@@ -1077,6 +1088,8 @@ EXPORT_SYMBOL(drm_edid_block_valid);
* @edid: EDID data
*
* Sanity-check an entire EDID record (including extensions)
+ *
+ * Return: True if the EDID data is valid, false otherwise.
*/
bool drm_edid_is_valid(struct edid *edid)
{
@@ -1096,18 +1109,15 @@ EXPORT_SYMBOL(drm_edid_is_valid);
#define DDC_SEGMENT_ADDR 0x30
/**
- * Get EDID information via I2C.
- *
- * @adapter : i2c device adaptor
+ * drm_do_probe_ddc_edid() - get EDID information via I2C
+ * @adapter: I2C device adaptor
* @buf: EDID data buffer to be filled
* @block: 128 byte EDID block to start fetching from
* @len: EDID data buffer length to fetch
*
- * Returns:
- *
- * 0 on success or -1 on failure.
+ * Try to fetch EDID information by calling I2C driver functions.
*
- * Try to fetch EDID information by calling i2c driver function.
+ * Return: 0 on success or -1 on failure.
*/
static int
drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
@@ -1118,7 +1128,8 @@ drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
unsigned char xfers = segment ? 3 : 2;
int ret, retries = 5;
- /* The core i2c driver will automatically retry the transfer if the
+ /*
+ * The core I2C driver will automatically retry the transfer if the
* adapter reports EAGAIN. However, we find that bit-banging transfers
* are susceptible to errors under a heavily loaded machine and
* generate spurious NAKs and timeouts. Retrying the transfer
@@ -1144,10 +1155,10 @@ drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
}
};
- /*
- * Avoid sending the segment addr to not upset non-compliant ddc
- * monitors.
- */
+ /*
+ * Avoid sending the segment addr to not upset non-compliant
+ * DDC monitors.
+ */
ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
if (ret == -ENXIO) {
@@ -1246,12 +1257,10 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
}
/**
- * Probe DDC presence.
- * @adapter: i2c adapter to probe
+ * drm_probe_ddc() - probe DDC presence
+ * @adapter: I2C adapter to probe
*
- * Returns:
- *
- * 1 on success
+ * Return: True on success, false on failure.
*/
bool
drm_probe_ddc(struct i2c_adapter *adapter)
@@ -1265,12 +1274,12 @@ EXPORT_SYMBOL(drm_probe_ddc);
/**
* drm_get_edid - get EDID data, if available
* @connector: connector we're probing
- * @adapter: i2c adapter to use for DDC
+ * @adapter: I2C adapter to use for DDC
*
- * Poke the given i2c channel to grab EDID data if possible. If found,
+ * Poke the given I2C channel to grab EDID data if possible. If found,
* attach it to the connector.
*
- * Return edid data or NULL if we couldn't find any.
+ * Return: Pointer to valid EDID or NULL if we couldn't find any.
*/
struct edid *drm_get_edid(struct drm_connector *connector,
struct i2c_adapter *adapter)
@@ -1288,7 +1297,7 @@ EXPORT_SYMBOL(drm_get_edid);
* drm_edid_duplicate - duplicate an EDID and the extensions
* @edid: EDID to duplicate
*
- * Return duplicate edid or NULL on allocation failure.
+ * Return: Pointer to duplicated EDID or NULL on allocation failure.
*/
struct edid *drm_edid_duplicate(const struct edid *edid)
{
@@ -1411,7 +1420,8 @@ mode_is_rb(const struct drm_display_mode *mode)
* @rb: Mode reduced-blanking-ness
*
* Walk the DMT mode list looking for a match for the given parameters.
- * Return a newly allocated copy of the mode, or NULL if not found.
+ *
+ * Return: A newly allocated copy of the mode, or NULL if not found.
*/
struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
int hsize, int vsize, int fresh,
@@ -1595,14 +1605,13 @@ bad_std_timing(u8 a, u8 b)
* @connector: connector of for the EDID block
* @edid: EDID block to scan
* @t: standard timing params
- * @revision: standard timing level
*
* Take the standard timing params (in this case width, aspect, and refresh)
* and convert them into a real mode using CVT/GTF/DMT.
*/
static struct drm_display_mode *
drm_mode_std(struct drm_connector *connector, struct edid *edid,
- struct std_timing *t, int revision)
+ struct std_timing *t)
{
struct drm_device *dev = connector->dev;
struct drm_display_mode *m, *mode = NULL;
@@ -1623,7 +1632,7 @@ drm_mode_std(struct drm_connector *connector, struct edid *edid,
vrefresh_rate = vfreq + 60;
/* the vdisplay is calculated based on the aspect ratio */
if (aspect_ratio == 0) {
- if (revision < 3)
+ if (edid->revision < 3)
vsize = hsize;
else
vsize = (hsize * 10) / 16;
@@ -2140,7 +2149,7 @@ do_established_modes(struct detailed_timing *timing, void *c)
/**
* add_established_modes - get est. modes from EDID and add them
- * @connector: connector of for the EDID block
+ * @connector: connector to add mode(s) to
* @edid: EDID block to scan
*
* Each EDID block contains a bitmap of the supported "established modes" list
@@ -2191,8 +2200,7 @@ do_standard_modes(struct detailed_timing *timing, void *c)
struct drm_display_mode *newmode;
std = &data->data.timings[i];
- newmode = drm_mode_std(connector, edid, std,
- edid->revision);
+ newmode = drm_mode_std(connector, edid, std);
if (newmode) {
drm_mode_probed_add(connector, newmode);
closure->modes++;
@@ -2203,7 +2211,7 @@ do_standard_modes(struct detailed_timing *timing, void *c)
/**
* add_standard_modes - get std. modes from EDID and add them
- * @connector: connector of for the EDID block
+ * @connector: connector to add mode(s) to
* @edid: EDID block to scan
*
* Standard modes can be calculated using the appropriate standard (DMT,
@@ -2221,8 +2229,7 @@ add_standard_modes(struct drm_connector *connector, struct edid *edid)
struct drm_display_mode *newmode;
newmode = drm_mode_std(connector, edid,
- &edid->standard_timings[i],
- edid->revision);
+ &edid->standard_timings[i]);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
@@ -2425,7 +2432,7 @@ cea_mode_alternate_clock(const struct drm_display_mode *cea_mode)
* drm_match_cea_mode - look for a CEA mode matching given mode
* @to_match: display mode
*
- * Returns the CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
+ * Return: The CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
* mode.
*/
u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
@@ -2452,6 +2459,22 @@ u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
}
EXPORT_SYMBOL(drm_match_cea_mode);
+/**
+ * drm_get_cea_aspect_ratio - get the picture aspect ratio corresponding to
+ * the input VIC from the CEA mode list
+ * @video_code: ID given to each of the CEA modes
+ *
+ * Returns picture aspect ratio
+ */
+enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
+{
+ /* return picture aspect ratio for video_code - 1 to access the
+ * right array element
+ */
+ return edid_cea_modes[video_code-1].picture_aspect_ratio;
+}
+EXPORT_SYMBOL(drm_get_cea_aspect_ratio);
+
/*
* Calculate the alternate clock for HDMI modes (those from the HDMI vendor
* specific block).
@@ -3023,11 +3046,9 @@ monitor_name(struct detailed_timing *t, void *data)
* @connector: connector corresponding to the HDMI/DP sink
* @edid: EDID to parse
*
- * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver.
- * Some ELD fields are left to the graphics driver caller:
- * - Conn_Type
- * - HDCP
- * - Port_ID
+ * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
+ * Conn_Type, HDCP and Port_ID ELD fields are left for the graphics driver to
+ * fill in.
*/
void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
{
@@ -3111,9 +3132,10 @@ EXPORT_SYMBOL(drm_edid_to_eld);
* @sads: pointer that will be set to the extracted SADs
*
* Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
- * Note: returned pointer needs to be kfreed
*
- * Return number of found SADs or negative number on error.
+ * Note: The returned pointer needs to be freed using kfree().
+ *
+ * Return: The number of found SADs or negative number on error.
*/
int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)
{
@@ -3170,9 +3192,11 @@ EXPORT_SYMBOL(drm_edid_to_sad);
* @sadb: pointer to the speaker block
*
* Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
- * Note: returned pointer needs to be kfreed
*
- * Return number of found Speaker Allocation Blocks or negative number on error.
+ * Note: The returned pointer needs to be freed using kfree().
+ *
+ * Return: The number of found Speaker Allocation Blocks or negative number on
+ * error.
*/
int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)
{
@@ -3219,9 +3243,12 @@ int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)
EXPORT_SYMBOL(drm_edid_to_speaker_allocation);
/**
- * drm_av_sync_delay - HDMI/DP sink audio-video sync delay in millisecond
+ * drm_av_sync_delay - compute the HDMI/DP sink audio-video sync delay
* @connector: connector associated with the HDMI/DP sink
* @mode: the display mode
+ *
+ * Return: The HDMI/DP sink's audio-video sync delay in milliseconds or 0 if
+ * the sink doesn't support audio or video.
*/
int drm_av_sync_delay(struct drm_connector *connector,
struct drm_display_mode *mode)
@@ -3263,6 +3290,9 @@ EXPORT_SYMBOL(drm_av_sync_delay);
*
* It's possible for one encoder to be associated with multiple HDMI/DP sinks.
* The policy is now hard coded to simply use the first HDMI/DP sink's ELD.
+ *
+ * Return: The connector associated with the first HDMI/DP sink that has ELD
+ * attached to it.
*/
struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
struct drm_display_mode *mode)
@@ -3279,11 +3309,12 @@ struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
EXPORT_SYMBOL(drm_select_eld);
/**
- * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
+ * drm_detect_hdmi_monitor - detect whether monitor is HDMI
* @edid: monitor EDID information
*
* Parse the CEA extension according to CEA-861-B.
- * Return true if HDMI, false if not or unknown.
+ *
+ * Return: True if the monitor is HDMI, false if not or unknown.
*/
bool drm_detect_hdmi_monitor(struct edid *edid)
{
@@ -3321,6 +3352,7 @@ EXPORT_SYMBOL(drm_detect_hdmi_monitor);
* audio format, assume at least 'basic audio' support, even if 'basic
* audio' is not defined in EDID.
*
+ * Return: True if the monitor supports audio, false otherwise.
*/
bool drm_detect_monitor_audio(struct edid *edid)
{
@@ -3364,6 +3396,8 @@ EXPORT_SYMBOL(drm_detect_monitor_audio);
* Check whether the monitor reports the RGB quantization range selection
* as supported. The AVI infoframe can then be used to inform the monitor
* which quantization range (full or limited) is used.
+ *
+ * Return: True if the RGB quantization range is selectable, false otherwise.
*/
bool drm_rgb_quant_range_selectable(struct edid *edid)
{
@@ -3468,11 +3502,11 @@ static void drm_add_display_info(struct edid *edid,
/**
* drm_add_edid_modes - add modes from EDID data, if available
* @connector: connector we're probing
- * @edid: edid data
+ * @edid: EDID data
*
* Add the specified modes to the connector's mode list.
*
- * Return number of modes added or 0 if we couldn't find any.
+ * Return: The number of modes added or 0 if we couldn't find any.
*/
int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
{
@@ -3534,7 +3568,7 @@ EXPORT_SYMBOL(drm_add_edid_modes);
* Add the specified modes to the connector's mode list. Only when the
* hdisplay/vdisplay is not beyond the given limit, it will be added.
*
- * Return number of modes added or 0 if we couldn't find any.
+ * Return: The number of modes added or 0 if we couldn't find any.
*/
int drm_add_modes_noedid(struct drm_connector *connector,
int hdisplay, int vdisplay)
@@ -3573,13 +3607,22 @@ int drm_add_modes_noedid(struct drm_connector *connector,
}
EXPORT_SYMBOL(drm_add_modes_noedid);
+/**
+ * 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 &&
+ if (mode->hdisplay == hpref &&
mode->vdisplay == vpref)
mode->type |= DRM_MODE_TYPE_PREFERRED;
}
@@ -3592,7 +3635,7 @@ EXPORT_SYMBOL(drm_set_preferred_mode);
* @frame: HDMI AVI infoframe
* @mode: DRM display mode
*
- * Returns 0 on success or a negative error code on failure.
+ * Return: 0 on success or a negative error code on failure.
*/
int
drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
@@ -3613,6 +3656,12 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
frame->video_code = drm_match_cea_mode(mode);
frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
+
+ /* Populate picture aspect ratio from CEA mode list */
+ if (frame->video_code > 0)
+ frame->picture_aspect = drm_get_cea_aspect_ratio(
+ frame->video_code);
+
frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
@@ -3657,7 +3706,7 @@ s3d_structure_from_display_mode(const struct drm_display_mode *mode)
* 4k or stereoscopic 3D mode. So when giving any other mode as input this
* function will return -EINVAL, error that can be safely ignored.
*
- * Returns 0 on success or a negative error code on failure.
+ * Return: 0 on success or a negative error code on failure.
*/
int
drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 04d3fd3658f3378e095a728b68de17653c1f1747..e95ed5805f07326668afceb83363a951d0a1cf1a 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -45,13 +45,13 @@ static LIST_HEAD(kernel_fb_helper_list);
* DOC: fbdev helpers
*
* The fb helper functions are useful to provide an fbdev on top of a drm kernel
- * mode setting driver. They can be used mostly independantely from the crtc
+ * mode setting driver. They can be used mostly independently from the crtc
* helper functions used by many drivers to implement the kernel mode setting
* interfaces.
*
* Initialization is done as a three-step process with drm_fb_helper_init(),
* drm_fb_helper_single_add_all_connectors() and drm_fb_helper_initial_config().
- * Drivers with fancier requirements than the default beheviour can override the
+ * Drivers with fancier requirements than the default behaviour can override the
* second step with their own code. Teardown is done with drm_fb_helper_fini().
*
* At runtime drivers should restore the fbdev console by calling
@@ -59,7 +59,7 @@ static LIST_HEAD(kernel_fb_helper_list);
* should also notify the fb helper code from updates to the output
* configuration by calling drm_fb_helper_hotplug_event(). For easier
* integration with the output polling code in drm_crtc_helper.c the modeset
- * code proves a ->output_poll_changed callback.
+ * code provides a ->output_poll_changed callback.
*
* All other functions exported by the fb helper library can be used to
* implement the fbdev driver interface by the driver.
@@ -326,12 +326,21 @@ static bool drm_fb_helper_force_kernel_mode(void)
return false;
list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
- if (helper->dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ struct drm_device *dev = helper->dev;
+
+ if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ continue;
+
+ if (!mutex_trylock(&dev->mode_config.mutex)) {
+ error = true;
continue;
+ }
ret = drm_fb_helper_restore_fbdev_mode(helper);
if (ret)
error = true;
+
+ mutex_unlock(&dev->mode_config.mutex);
}
return error;
}
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index e1eba0b7cd45144a8a3b6337ec0ea3ebeb688ddf..021fe5d11df51111629739da5fc12665839768ca 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -43,8 +43,7 @@
DEFINE_MUTEX(drm_global_mutex);
EXPORT_SYMBOL(drm_global_mutex);
-static int drm_open_helper(struct inode *inode, struct file *filp,
- struct drm_minor *minor);
+static int drm_open_helper(struct file *filp, struct drm_minor *minor);
static int drm_setup(struct drm_device * dev)
{
@@ -95,7 +94,7 @@ int drm_open(struct inode *inode, struct file *filp)
/* share address_space across all char-devs of a single device */
filp->f_mapping = dev->anon_inode->i_mapping;
- retcode = drm_open_helper(inode, filp, minor);
+ retcode = drm_open_helper(filp, minor);
if (retcode)
goto err_undo;
if (need_setup) {
@@ -171,7 +170,6 @@ static int drm_cpu_valid(void)
/**
* Called whenever a process opens /dev/drm.
*
- * \param inode device inode.
* \param filp file pointer.
* \param minor acquired minor-object.
* \return zero on success or a negative number on failure.
@@ -179,8 +177,7 @@ static int drm_cpu_valid(void)
* Creates and initializes a drm_file structure for the file private data in \p
* filp and add it into the double linked list in \p dev.
*/
-static int drm_open_helper(struct inode *inode, struct file *filp,
- struct drm_minor *minor)
+static int drm_open_helper(struct file *filp, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct drm_file *priv;
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c
index d2b1c03b3d7113f03027199107732d76acdf58ea..d966afa7ecae66e620cf38a1ec237a6b47b08b68 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -124,7 +124,6 @@ int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
.y2 = crtc->mode.vdisplay,
};
struct drm_connector **connector_list;
- struct drm_framebuffer *tmpfb;
int num_connectors, ret;
if (!crtc->enabled) {
@@ -145,6 +144,8 @@ int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
}
/* Disallow scaling */
+ src_w >>= 16;
+ src_h >>= 16;
if (crtc_w != src_w || crtc_h != src_h) {
DRM_DEBUG_KMS("Can't scale primary plane\n");
return -EINVAL;
@@ -176,21 +177,14 @@ int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
set.num_connectors = num_connectors;
/*
- * set_config() adjusts crtc->primary->fb; however the DRM setplane
- * code that called us expects to handle the framebuffer update and
- * reference counting; save and restore the current fb before
- * calling it.
- *
- * N.B., we call set_config() directly here rather than using
+ * We call set_config() directly here rather than using
* drm_mode_set_config_internal. We're reprogramming the same
* connectors that were already in use, so we shouldn't need the extra
* cross-CRTC fb refcounting to accomodate stealing connectors.
* drm_mode_setplane() already handles the basic refcounting for the
* framebuffers involved in this operation.
*/
- tmpfb = plane->fb;
ret = crtc->funcs->set_config(&set);
- plane->fb = tmpfb;
kfree(connector_list);
return ret;
@@ -232,7 +226,6 @@ EXPORT_SYMBOL(drm_primary_helper_disable);
*/
void drm_primary_helper_destroy(struct drm_plane *plane)
{
- plane->funcs->disable_plane(plane);
drm_plane_cleanup(plane);
kfree(plane);
}
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 8afdd0998a8c7f33c4a092c8126a527a601b6f7a..79f07f2c13d3c8ffcc4e530245dcf0a5d0abe263 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -151,7 +151,7 @@ static int drm_helper_probe_single_connector_modes_merge_bits(struct drm_connect
drm_mode_validate_flag(connector, mode_flags);
list_for_each_entry(mode, &connector->modes, head) {
- if (mode->status == MODE_OK)
+ if (mode->status == MODE_OK && connector_funcs->mode_valid)
mode->status = connector_funcs->mode_valid(connector,
mode);
}
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index aed533bbfd314e919d243aa07f5a4876fef66c2e..bb74472b4e4b1c13d5a631b1a553791b344047a8 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -949,12 +949,6 @@ static int exynos_dp_get_modes(struct drm_connector *connector)
return 1;
}
-static int exynos_dp_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
static struct drm_encoder *exynos_dp_best_encoder(
struct drm_connector *connector)
{
@@ -965,7 +959,6 @@ static struct drm_encoder *exynos_dp_best_encoder(
static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
.get_modes = exynos_dp_get_modes,
- .mode_valid = exynos_dp_mode_valid,
.best_encoder = exynos_dp_best_encoder,
};
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
index 2b09c7c0bfcc8b229a9458ff6b9e1a2f8648e56e..82e52c71bcccdc9d4e0942cbba027e8a651aee3d 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
@@ -94,12 +94,6 @@ static int exynos_dpi_get_modes(struct drm_connector *connector)
return 0;
}
-static int exynos_dpi_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
static struct drm_encoder *
exynos_dpi_best_encoder(struct drm_connector *connector)
{
@@ -110,7 +104,6 @@ exynos_dpi_best_encoder(struct drm_connector *connector)
static struct drm_connector_helper_funcs exynos_dpi_connector_helper_funcs = {
.get_modes = exynos_dpi_get_modes,
- .mode_valid = exynos_dpi_mode_valid,
.best_encoder = exynos_dpi_best_encoder,
};
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 852f2dadaebdbbe3a385b5fe28cd65a560f0c210..3fa987df906ae4f8ddbc5a932ce9adfd017f7793 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -533,12 +533,6 @@ static int vidi_get_modes(struct drm_connector *connector)
return drm_add_edid_modes(connector, edid);
}
-static int vidi_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
static struct drm_encoder *vidi_best_encoder(struct drm_connector *connector)
{
struct vidi_context *ctx = ctx_from_connector(connector);
@@ -548,7 +542,6 @@ static struct drm_encoder *vidi_best_encoder(struct drm_connector *connector)
static struct drm_connector_helper_funcs vidi_connector_helper_funcs = {
.get_modes = vidi_get_modes,
- .mode_valid = vidi_mode_valid,
.best_encoder = vidi_best_encoder,
};
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
index 4f3ba93cd91dac906b7c06215dd5c7efc0be4987..289048d1c7b2fd590e20eb2425266b758fbfbd88 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
@@ -57,15 +57,8 @@ static int rcar_du_lvds_connector_get_modes(struct drm_connector *connector)
return 1;
}
-static int rcar_du_lvds_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
static const struct drm_connector_helper_funcs connector_helper_funcs = {
.get_modes = rcar_du_lvds_connector_get_modes,
- .mode_valid = rcar_du_lvds_connector_mode_valid,
.best_encoder = rcar_du_connector_best_encoder,
};
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
index 41d563adfeaa16321f5097af481886f0185a9605..ccfe64c7188fa902750a2fa9a05be5045baa7397 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
@@ -25,15 +25,8 @@ static int rcar_du_vga_connector_get_modes(struct drm_connector *connector)
return 0;
}
-static int rcar_du_vga_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
static const struct drm_connector_helper_funcs connector_helper_funcs = {
.get_modes = rcar_du_vga_connector_get_modes,
- .mode_valid = rcar_du_vga_connector_mode_valid,
.best_encoder = rcar_du_connector_best_encoder,
};
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
index e9e5e6d368cca5271a7260967ac63328ffc80ad6..faf176b2daf99ae628a16c862581d65b90a02943 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
@@ -674,12 +674,6 @@ static int shmob_drm_connector_get_modes(struct drm_connector *connector)
return 1;
}
-static int shmob_drm_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
static struct drm_encoder *
shmob_drm_connector_best_encoder(struct drm_connector *connector)
{
@@ -690,7 +684,6 @@ shmob_drm_connector_best_encoder(struct drm_connector *connector)
static const struct drm_connector_helper_funcs connector_helper_funcs = {
.get_modes = shmob_drm_connector_get_modes,
- .mode_valid = shmob_drm_connector_mode_valid,
.best_encoder = shmob_drm_connector_best_encoder,
};
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 4144a75e5f71bc6258d9d8dcdc1a02b3b2a2f035..53ff005245c51d0d90ea17b26618a58207f0d4c7 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -200,13 +200,6 @@ static const struct file_operations imx_drm_driver_fops = {
.llseek = noop_llseek,
};
-int imx_drm_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-EXPORT_SYMBOL(imx_drm_connector_mode_valid);
-
void imx_drm_connector_destroy(struct drm_connector *connector)
{
drm_sysfs_connector_remove(connector);
diff --git a/drivers/staging/imx-drm/imx-drm.h b/drivers/staging/imx-drm/imx-drm.h
index a322bac55414fb0242e65417befb469a672083c6..7453ae00c412fbc25a90f6ca783603784edbbae4 100644
--- a/drivers/staging/imx-drm/imx-drm.h
+++ b/drivers/staging/imx-drm/imx-drm.h
@@ -50,8 +50,6 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
int imx_drm_encoder_parse_of(struct drm_device *drm,
struct drm_encoder *encoder, struct device_node *np);
-int imx_drm_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode);
void imx_drm_connector_destroy(struct drm_connector *connector);
void imx_drm_encoder_destroy(struct drm_encoder *encoder);
diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c
index d47dedd2cdb416fceb7b0bf90f3fda129e8036ab..9fbe6d6a989de7f33e57ddc908e51fe08a23cffd 100644
--- a/drivers/staging/imx-drm/imx-hdmi.c
+++ b/drivers/staging/imx-drm/imx-hdmi.c
@@ -1492,7 +1492,6 @@ static struct drm_connector_funcs imx_hdmi_connector_funcs = {
static struct drm_connector_helper_funcs imx_hdmi_connector_helper_funcs = {
.get_modes = imx_hdmi_connector_get_modes,
- .mode_valid = imx_drm_connector_mode_valid,
.best_encoder = imx_hdmi_connector_best_encoder,
};
diff --git a/drivers/staging/imx-drm/imx-ldb.c b/drivers/staging/imx-drm/imx-ldb.c
index fe4c1ef4e7a509afda8f5d3587f1f8eadad6ea42..7e3f019d7e72543c40dd11299a051383a1a57224 100644
--- a/drivers/staging/imx-drm/imx-ldb.c
+++ b/drivers/staging/imx-drm/imx-ldb.c
@@ -317,7 +317,6 @@ static struct drm_connector_funcs imx_ldb_connector_funcs = {
static struct drm_connector_helper_funcs imx_ldb_connector_helper_funcs = {
.get_modes = imx_ldb_connector_get_modes,
.best_encoder = imx_ldb_connector_best_encoder,
- .mode_valid = imx_drm_connector_mode_valid,
};
static struct drm_encoder_funcs imx_ldb_encoder_funcs = {
diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index 575533f4fd64fc7d53d38c4a0cb307fa429f9f68..5a5a5287a86a3b8459ea16fc8c6c82cecbecb0d6 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -251,10 +251,6 @@ static int imx_tve_connector_mode_valid(struct drm_connector *connector,
unsigned long rate;
int ret;
- ret = imx_drm_connector_mode_valid(connector, mode);
- if (ret != MODE_OK)
- return ret;
-
/* pixel clock with 2x oversampling */
rate = clk_round_rate(tve->clk, 2000UL * mode->clock) / 2000;
if (rate == mode->clock)
diff --git a/drivers/staging/imx-drm/parallel-display.c b/drivers/staging/imx-drm/parallel-display.c
index c60b6c645f42000df73f7ee4ba198cca6c65d27f..52598e489a4bf5d47772df825b1f593c8f545d3b 100644
--- a/drivers/staging/imx-drm/parallel-display.c
+++ b/drivers/staging/imx-drm/parallel-display.c
@@ -148,7 +148,6 @@ static struct drm_connector_funcs imx_pd_connector_funcs = {
static struct drm_connector_helper_funcs imx_pd_connector_helper_funcs = {
.get_modes = imx_pd_connector_get_modes,
.best_encoder = imx_pd_connector_best_encoder,
- .mode_valid = imx_drm_connector_mode_valid,
};
static struct drm_encoder_funcs imx_pd_encoder_funcs = {
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c6b9e8ab0a266dc520984fc9deb9ede4dfb14d0d..698d54e27f3904d4a60024ddfd7378961ed8a44a 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1021,6 +1021,7 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
+extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
extern bool drm_detect_hdmi_monitor(struct edid *edid);
extern bool drm_detect_monitor_audio(struct edid *edid);
extern bool drm_rgb_quant_range_selectable(struct edid *edid);
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index f51c8393e9a81a68105a60152d5e4323288bc096..a3d75fefd01020b520be0d9b35958f9462b4aec4 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -114,7 +114,7 @@ struct drm_encoder_helper_funcs {
/**
* drm_connector_helper_funcs - helper operations for connectors
* @get_modes: get mode list for this connector
- * @mode_valid: is this mode valid on the given connector?
+ * @mode_valid (optional): is this mode valid on the given connector?
*
* The helper operations are called by the mid-layer CRTC helper.
*/
diff --git a/include/drm/drm_flip_work.h b/include/drm/drm_flip_work.h
index 35c776ae7d3b438b9e497733426c98ae4df5dec4..9eed34dcd6afea74a8438f5571552cd472191a45 100644
--- a/include/drm/drm_flip_work.h
+++ b/include/drm/drm_flip_work.h
@@ -57,6 +57,7 @@ typedef void (*drm_flip_func_t)(struct drm_flip_work *work, void *val);
* @count: number of committed items
* @func: callback fxn called for each committed item
* @worker: worker which calls @func
+ * @fifo: queue of committed items
*/
struct drm_flip_work {
const char *name;