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drm: make mode_valid callback optional

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Many drm connectors do not need mode validation.
The patch makes this callback optional and removes dumb implementations.

v2: Rebase:
- imx move to a shared (but still dummy) ->mode_valid implementation.
- probe helpers have been extracted to drm_probe_helper.c

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Andrzej Hajda 2014-04-02 12:29:46 +02:00 committed by Daniel Vetter
parent 0967e6a507
commit f9b0e251df
18 changed files with 5 additions and 85 deletions
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6
Documentation/DocBook/drm.tmpl
View File

@ -1903,8 +1903,8 @@ void intel_crt_init(struct drm_device *dev)
<para>
The function filters out modes larger than
<parameter>max_width</parameter> and <parameter>max_height</parameter>
if specified. It then calls the connector
<methodname>mode_valid</methodname> helper operation for each mode in
if specified. It then calls the optional connector
<methodname>mode_valid</methodname> helper operation for each mode in
the probed list to check whether the mode is valid for the connector.
</para>
</listitem>
@ -2265,7 +2265,7 @@ void intel_crt_init(struct drm_device *dev)
<para>
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.
</para>
<para>
As the mode rejection reason is currently not used beside for

7
drivers/gpu/drm/ast/ast_mode.c
View File

@ -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,
};

7
drivers/gpu/drm/bridge/ptn3460.c
View File

@ -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,
};

8
drivers/gpu/drm/cirrus/cirrus_mode.c
View File

@ -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,
};

2
drivers/gpu/drm/drm_probe_helper.c
View File

@ -169,7 +169,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
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);
}

7
drivers/gpu/drm/exynos/exynos_dp_core.c
View File

@ -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,
};

7
drivers/gpu/drm/exynos/exynos_drm_dpi.c
View File

@ -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,
};

7
drivers/gpu/drm/exynos/exynos_drm_vidi.c
View File

@ -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,
};

7
drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
View File

@ -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,
};

7
drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
View File

@ -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,
};

7
drivers/gpu/drm/shmobile/shmob_drm_crtc.c
View File

@ -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,
};

7
drivers/staging/imx-drm/imx-drm-core.c
View File

@ -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);

2
drivers/staging/imx-drm/imx-drm.h
View File

@ -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);

1
drivers/staging/imx-drm/imx-hdmi.c
View File

@ -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,
};

1
drivers/staging/imx-drm/imx-ldb.c
View File

@ -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 = {

4
drivers/staging/imx-drm/imx-tve.c
View File

@ -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)

1
drivers/staging/imx-drm/parallel-display.c
View File

@ -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 = {

2
include/drm/drm_crtc_helper.h
View File

@ -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.
*/