drm/sun4i: add lvds mode_valid function
mode_valid function is missing for lvds. Add it making it pointed by encoder helper functions. Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/1520940019-68977-1-git-send-email-giulio.benetti@micronovasrl.com
This commit is contained in:
parent
cde8b75482
commit
e4e4b7ad50
|
@ -94,9 +94,64 @@ static void sun4i_lvds_encoder_disable(struct drm_encoder *encoder)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static enum drm_mode_status sun4i_lvds_encoder_mode_valid(struct drm_encoder *crtc,
|
||||||
|
const struct drm_display_mode *mode)
|
||||||
|
{
|
||||||
|
struct sun4i_lvds *lvds = drm_encoder_to_sun4i_lvds(crtc);
|
||||||
|
struct sun4i_tcon *tcon = lvds->tcon;
|
||||||
|
u32 hsync = mode->hsync_end - mode->hsync_start;
|
||||||
|
u32 vsync = mode->vsync_end - mode->vsync_start;
|
||||||
|
unsigned long rate = mode->clock * 1000;
|
||||||
|
long rounded_rate;
|
||||||
|
|
||||||
|
DRM_DEBUG_DRIVER("Validating modes...\n");
|
||||||
|
|
||||||
|
if (hsync < 1)
|
||||||
|
return MODE_HSYNC_NARROW;
|
||||||
|
|
||||||
|
if (hsync > 0x3ff)
|
||||||
|
return MODE_HSYNC_WIDE;
|
||||||
|
|
||||||
|
if ((mode->hdisplay < 1) || (mode->htotal < 1))
|
||||||
|
return MODE_H_ILLEGAL;
|
||||||
|
|
||||||
|
if ((mode->hdisplay > 0x7ff) || (mode->htotal > 0xfff))
|
||||||
|
return MODE_BAD_HVALUE;
|
||||||
|
|
||||||
|
DRM_DEBUG_DRIVER("Horizontal parameters OK\n");
|
||||||
|
|
||||||
|
if (vsync < 1)
|
||||||
|
return MODE_VSYNC_NARROW;
|
||||||
|
|
||||||
|
if (vsync > 0x3ff)
|
||||||
|
return MODE_VSYNC_WIDE;
|
||||||
|
|
||||||
|
if ((mode->vdisplay < 1) || (mode->vtotal < 1))
|
||||||
|
return MODE_V_ILLEGAL;
|
||||||
|
|
||||||
|
if ((mode->vdisplay > 0x7ff) || (mode->vtotal > 0xfff))
|
||||||
|
return MODE_BAD_VVALUE;
|
||||||
|
|
||||||
|
DRM_DEBUG_DRIVER("Vertical parameters OK\n");
|
||||||
|
|
||||||
|
tcon->dclk_min_div = 7;
|
||||||
|
tcon->dclk_max_div = 7;
|
||||||
|
rounded_rate = clk_round_rate(tcon->dclk, rate);
|
||||||
|
if (rounded_rate < rate)
|
||||||
|
return MODE_CLOCK_LOW;
|
||||||
|
|
||||||
|
if (rounded_rate > rate)
|
||||||
|
return MODE_CLOCK_HIGH;
|
||||||
|
|
||||||
|
DRM_DEBUG_DRIVER("Clock rate OK\n");
|
||||||
|
|
||||||
|
return MODE_OK;
|
||||||
|
}
|
||||||
|
|
||||||
static const struct drm_encoder_helper_funcs sun4i_lvds_enc_helper_funcs = {
|
static const struct drm_encoder_helper_funcs sun4i_lvds_enc_helper_funcs = {
|
||||||
.disable = sun4i_lvds_encoder_disable,
|
.disable = sun4i_lvds_encoder_disable,
|
||||||
.enable = sun4i_lvds_encoder_enable,
|
.enable = sun4i_lvds_encoder_enable,
|
||||||
|
.mode_valid = sun4i_lvds_encoder_mode_valid,
|
||||||
};
|
};
|
||||||
|
|
||||||
static const struct drm_encoder_funcs sun4i_lvds_enc_funcs = {
|
static const struct drm_encoder_funcs sun4i_lvds_enc_funcs = {
|
||||||
|
|
Loading…
Reference in New Issue