leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/vc4: hdmi: Add a set_timings callback

Browse Source 
Similarly to the previous patches, the timings setup in the HDMI controller
of the BCM2711 is slightly different, mostly because it supports higher
resolutions and thus needed more spaces for the various timings, resulting
in the register layout changing.

Let's add a callback for that as well.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0cfcbb379212f90b4abc76c0ccf3b90d1d7c0268.1599120059.git-series.maxime@cerno.tech
This commit is contained in:
Maxime Ripard 2020-09-03 10:01:28 +02:00
parent 89f31a23fd
commit 904f668adc
No known key found for this signature in database
GPG Key ID: E3EF0D6F671851C5
2 changed files with 44 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

72
drivers/gpu/drm/vc4/vc4_hdmi.c
View File

@ -369,12 +369,9 @@ static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, bool enable)
HDMI_WRITE(HDMI_CSC_CTL, csc_ctl);
}
static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
static void vc4_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi,
struct drm_display_mode *mode)
{
struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
struct vc4_hdmi_encoder *vc4_encoder = &vc4_hdmi->encoder;
bool debug_dump_regs = false;
bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC;
bool vsync_pos = mode->flags & DRM_MODE_FLAG_PVSYNC;
bool interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
@ -392,6 +389,41 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
mode->crtc_vsync_end -
interlaced,
VC4_HDMI_VERTB_VBP));
HDMI_WRITE(HDMI_HORZA,
(vsync_pos ? VC4_HDMI_HORZA_VPOS : 0) |
(hsync_pos ? VC4_HDMI_HORZA_HPOS : 0) |
VC4_SET_FIELD(mode->hdisplay * pixel_rep,
VC4_HDMI_HORZA_HAP));
HDMI_WRITE(HDMI_HORZB,
VC4_SET_FIELD((mode->htotal -
mode->hsync_end) * pixel_rep,
VC4_HDMI_HORZB_HBP) |
VC4_SET_FIELD((mode->hsync_end -
mode->hsync_start) * pixel_rep,
VC4_HDMI_HORZB_HSP) |
VC4_SET_FIELD((mode->hsync_start -
mode->hdisplay) * pixel_rep,
VC4_HDMI_HORZB_HFP));
HDMI_WRITE(HDMI_VERTA0, verta);
HDMI_WRITE(HDMI_VERTA1, verta);
HDMI_WRITE(HDMI_VERTB0, vertb_even);
HDMI_WRITE(HDMI_VERTB1, vertb);
HDMI_WRITE(HDMI_VID_CTL,
(vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) |
(hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW));
}
static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
{
struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder);
bool debug_dump_regs = false;
int ret;
ret = pm_runtime_get_sync(&vc4_hdmi->pdev->dev);
@ -435,33 +467,8 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
VC4_HDMI_SCHEDULER_CONTROL_MANUAL_FORMAT |
VC4_HDMI_SCHEDULER_CONTROL_IGNORE_VSYNC_PREDICTS);
HDMI_WRITE(HDMI_HORZA,
(vsync_pos ? VC4_HDMI_HORZA_VPOS : 0) |
(hsync_pos ? VC4_HDMI_HORZA_HPOS : 0) |
VC4_SET_FIELD(mode->hdisplay * pixel_rep,
VC4_HDMI_HORZA_HAP));
HDMI_WRITE(HDMI_HORZB,
VC4_SET_FIELD((mode->htotal -
mode->hsync_end) * pixel_rep,
VC4_HDMI_HORZB_HBP) |
VC4_SET_FIELD((mode->hsync_end -
mode->hsync_start) * pixel_rep,
VC4_HDMI_HORZB_HSP) |
VC4_SET_FIELD((mode->hsync_start -
mode->hdisplay) * pixel_rep,
VC4_HDMI_HORZB_HFP));
HDMI_WRITE(HDMI_VERTA0, verta);
HDMI_WRITE(HDMI_VERTA1, verta);
HDMI_WRITE(HDMI_VERTB0, vertb_even);
HDMI_WRITE(HDMI_VERTB1, vertb);
HDMI_WRITE(HDMI_VID_CTL,
(vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) |
(hsync_pos ? 0 : VC4_HD_VID_CTL_HSYNC_LOW));
if (vc4_hdmi->variant->set_timings)
vc4_hdmi->variant->set_timings(vc4_hdmi, mode);
if (vc4_encoder->hdmi_monitor &&
drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED) {
@ -1445,6 +1452,7 @@ static const struct vc4_hdmi_variant bcm2835_variant = {
.init_resources = vc4_hdmi_init_resources,
.csc_setup = vc4_hdmi_csc_setup,
.reset = vc4_hdmi_reset,
.set_timings = vc4_hdmi_set_timings,
.phy_init = vc4_hdmi_phy_init,
.phy_disable = vc4_hdmi_phy_disable,
.phy_rng_enable = vc4_hdmi_phy_rng_enable,

4
drivers/gpu/drm/vc4/vc4_hdmi.h
View File

@ -44,6 +44,10 @@ struct vc4_hdmi_variant {
/* Callback to enable / disable the CSC */
void (*csc_setup)(struct vc4_hdmi *vc4_hdmi, bool enable);
/* Callback to configure the video timings in the HDMI block */
void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
struct drm_display_mode *mode);
/* Callback to initialize the PHY according to the mode */
void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
struct drm_display_mode *mode);