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drm/rockchip: vop: support mode_valid for crtc

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Change-Id: I51f2377c5bd4bdecf44ad31f11e4e7131c2c10c1
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
This commit is contained in:
Mark Yao
2017-01-22 15:53:49 +08:00
committed by Huang, Tao
parent 0ddcc75666
commit 7e3e0c5e2e
2 changed files with 29 additions and 0 deletions
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3
drivers/gpu/drm/rockchip/rockchip_drm_drv.h
View File

@@ -45,6 +45,9 @@ struct rockchip_crtc_funcs {
void (*wait_for_update)(struct drm_crtc *crtc);
void (*cancel_pending_vblank)(struct drm_crtc *crtc, struct drm_file *file_priv);
int (*debugfs_dump)(struct drm_crtc *crtc, struct seq_file *s);
enum drm_mode_status (*mode_valid)(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
int output_type);
};
struct drm_rockchip_subdrv {

26
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
View File

@@ -1402,6 +1402,31 @@ static int vop_crtc_debugfs_dump(struct drm_crtc *crtc, struct seq_file *s)
return 0;
}
static enum drm_mode_status
vop_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode,
int output_type)
{
struct vop *vop = to_vop(crtc);
const struct vop_data *vop_data = vop->data;
int clock;
if (mode->hdisplay > vop_data->max_disably_output.width)
return MODE_BAD_HVALUE;
if (mode->vdisplay > vop_data->max_disably_output.height)
return MODE_BAD_VVALUE;
clock = clk_round_rate(vop->dclk, mode->clock * 1000) / 1000;
/*
* Hdmi or DisplayPort request a Accurate clock.
*/
if (output_type == DRM_MODE_CONNECTOR_HDMIA ||
output_type == DRM_MODE_CONNECTOR_DisplayPort)
if (clock != mode->clock)
return MODE_CLOCK_RANGE;
return MODE_OK;
}
static const struct rockchip_crtc_funcs private_crtc_funcs = {
.loader_protect = vop_crtc_loader_protect,
.enable_vblank = vop_crtc_enable_vblank,
@@ -1409,6 +1434,7 @@ static const struct rockchip_crtc_funcs private_crtc_funcs = {
.wait_for_update = vop_crtc_wait_for_update,
.cancel_pending_vblank = vop_crtc_cancel_pending_vblank,
.debugfs_dump = vop_crtc_debugfs_dump,
.mode_valid = vop_crtc_mode_valid,
};
static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,