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gma500/cdv: add the bits that don't need the new code
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Based on bits from Yakui <yakui.zhao@intel.com>

We can import various little bits of code before we plumb it all
in and hopefully this way catch any regressions more easily.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Alan Cox authored and Dave Airlie committed Aug 23, 2012
1 parent 8695b61 commit 220801b
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Showing 4 changed files with 161 additions and 3 deletions.
59 changes: 59 additions & 0 deletions drivers/gpu/drm/gma500/cdv_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -488,6 +488,65 @@ static void cdv_hotplug_enable(struct drm_device *dev, bool on)
}
}

static const char *force_audio_names[] = {
"off",
"auto",
"on",
};

void cdv_intel_attach_force_audio_property(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_psb_private *dev_priv = dev->dev_private;
struct drm_property *prop;
int i;

prop = dev_priv->force_audio_property;
if (prop == NULL) {
prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
"audio",
ARRAY_SIZE(force_audio_names));
if (prop == NULL)
return;

for (i = 0; i < ARRAY_SIZE(force_audio_names); i++)
drm_property_add_enum(prop, i, i-1, force_audio_names[i]);

dev_priv->force_audio_property = prop;
}
drm_connector_attach_property(connector, prop, 0);
}


static const char *broadcast_rgb_names[] = {
"Full",
"Limited 16:235",
};

void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_psb_private *dev_priv = dev->dev_private;
struct drm_property *prop;
int i;

prop = dev_priv->broadcast_rgb_property;
if (prop == NULL) {
prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
"Broadcast RGB",
ARRAY_SIZE(broadcast_rgb_names));
if (prop == NULL)
return;

for (i = 0; i < ARRAY_SIZE(broadcast_rgb_names); i++)
drm_property_add_enum(prop, i, i, broadcast_rgb_names[i]);

dev_priv->broadcast_rgb_property = prop;
}

drm_connector_attach_property(connector, prop, 0);
}

/* Cedarview */
static const struct psb_offset cdv_regmap[2] = {
{
Expand Down
99 changes: 97 additions & 2 deletions drivers/gpu/drm/gma500/cdv_intel_display.c
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Original file line number Diff line number Diff line change
Expand Up @@ -64,11 +64,16 @@ struct cdv_intel_limit_t {
static bool cdv_intel_find_best_PLL(const struct cdv_intel_limit_t *limit,
struct drm_crtc *crtc, int target, int refclk,
struct cdv_intel_clock_t *best_clock);
static bool cdv_intel_find_dp_pll(const struct cdv_intel_limit_t *limit, struct drm_crtc *crtc, int target,
int refclk,
struct cdv_intel_clock_t *best_clock);

#define CDV_LIMIT_SINGLE_LVDS_96 0
#define CDV_LIMIT_SINGLE_LVDS_100 1
#define CDV_LIMIT_DAC_HDMI_27 2
#define CDV_LIMIT_DAC_HDMI_96 3
#define CDV_LIMIT_DP_27 4
#define CDV_LIMIT_DP_100 5

static const struct cdv_intel_limit_t cdv_intel_limits[] = {
{ /* CDV_SIGNLE_LVDS_96MHz */
Expand Down Expand Up @@ -123,6 +128,30 @@ static const struct cdv_intel_limit_t cdv_intel_limits[] = {
.p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 5},
.find_pll = cdv_intel_find_best_PLL,
},
{ /* CDV_DP_27MHz */
.dot = {.min = 160000, .max = 272000},
.vco = {.min = 1809000, .max = 3564000},
.n = {.min = 1, .max = 1},
.m = {.min = 67, .max = 132},
.m1 = {.min = 0, .max = 0},
.m2 = {.min = 65, .max = 130},
.p = {.min = 5, .max = 90},
.p1 = {.min = 1, .max = 9},
.p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 10},
.find_pll = cdv_intel_find_dp_pll,
},
{ /* CDV_DP_100MHz */
.dot = {.min = 160000, .max = 272000},
.vco = {.min = 1800000, .max = 3600000},
.n = {.min = 2, .max = 6},
.m = {.min = 60, .max = 164},
.m1 = {.min = 0, .max = 0},
.m2 = {.min = 58, .max = 162},
.p = {.min = 5, .max = 100},
.p1 = {.min = 1, .max = 10},
.p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 10},
.find_pll = cdv_intel_find_dp_pll,
}
};

#define _wait_for(COND, MS, W) ({ \
Expand Down Expand Up @@ -269,7 +298,7 @@ cdv_dpll_set_clock_cdv(struct drm_device *dev, struct drm_crtc *crtc,
ref_value &= ~(REF_CLK_MASK);

/* use DPLL_A for pipeB on CRT/HDMI */
if (pipe == 1 && !is_lvds) {
if (pipe == 1 && !is_lvds && !(ddi_select & DP_MASK)) {
DRM_DEBUG_KMS("use DPLLA for pipe B\n");
ref_value |= REF_CLK_DPLLA;
} else {
Expand Down Expand Up @@ -409,6 +438,11 @@ static const struct cdv_intel_limit_t *cdv_intel_limit(struct drm_crtc *crtc,
limit = &cdv_intel_limits[CDV_LIMIT_SINGLE_LVDS_96];
else
limit = &cdv_intel_limits[CDV_LIMIT_SINGLE_LVDS_100];
} else if (psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
if (refclk == 27000)
limit = &cdv_intel_limits[CDV_LIMIT_DP_27];
else
limit = &cdv_intel_limits[CDV_LIMIT_DP_100];
} else {
if (refclk == 27000)
limit = &cdv_intel_limits[CDV_LIMIT_DAC_HDMI_27];
Expand Down Expand Up @@ -510,6 +544,49 @@ static bool cdv_intel_find_best_PLL(const struct cdv_intel_limit_t *limit,
return err != target;
}

static bool cdv_intel_find_dp_pll(const struct cdv_intel_limit_t *limit, struct drm_crtc *crtc, int target,
int refclk,
struct cdv_intel_clock_t *best_clock)
{
struct cdv_intel_clock_t clock;
if (refclk == 27000) {
if (target < 200000) {
clock.p1 = 2;
clock.p2 = 10;
clock.n = 1;
clock.m1 = 0;
clock.m2 = 118;
} else {
clock.p1 = 1;
clock.p2 = 10;
clock.n = 1;
clock.m1 = 0;
clock.m2 = 98;
}
} else if (refclk == 100000) {
if (target < 200000) {
clock.p1 = 2;
clock.p2 = 10;
clock.n = 5;
clock.m1 = 0;
clock.m2 = 160;
} else {
clock.p1 = 1;
clock.p2 = 10;
clock.n = 5;
clock.m1 = 0;
clock.m2 = 133;
}
} else
return false;
clock.m = clock.m2 + 2;
clock.p = clock.p1 * clock.p2;
clock.vco = (refclk * clock.m) / clock.n;
clock.dot = clock.vco / clock.p;
memcpy(best_clock, &clock, sizeof(struct cdv_intel_clock_t));
return true;
}

static int cdv_intel_pipe_set_base(struct drm_crtc *crtc,
int x, int y, struct drm_framebuffer *old_fb)
{
Expand Down Expand Up @@ -963,7 +1040,7 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
u32 dpll = 0, dspcntr, pipeconf;
bool ok;
bool is_crt = false, is_lvds = false, is_tv = false;
bool is_hdmi = false;
bool is_hdmi = false, is_dp = false;
struct drm_mode_config *mode_config = &dev->mode_config;
struct drm_connector *connector;
const struct cdv_intel_limit_t *limit;
Expand Down Expand Up @@ -991,6 +1068,9 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
case INTEL_OUTPUT_HDMI:
is_hdmi = true;
break;
case INTEL_OUTPUT_DISPLAYPORT:
is_dp = true;
break;
default:
DRM_ERROR("invalid output type.\n");
return 0;
Expand All @@ -1003,6 +1083,12 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
else
/* high-end sku, 27/100 mhz */
refclk = 27000;
if (is_dp) {
if (pipe == 0)
refclk = 27000;
else
refclk = 100000;
}

if (is_lvds && dev_priv->lvds_use_ssc) {
refclk = dev_priv->lvds_ssc_freq * 1000;
Expand All @@ -1028,6 +1114,15 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
}
/* dpll |= PLL_REF_INPUT_DREFCLK; */

if (is_dp) {
/*FIXME cdv_intel_dp_set_m_n(crtc, mode, adjusted_mode); */
} else {
REG_WRITE(PIPE_GMCH_DATA_M(pipe), 0);
REG_WRITE(PIPE_GMCH_DATA_N(pipe), 0);
REG_WRITE(PIPE_DP_LINK_M(pipe), 0);
REG_WRITE(PIPE_DP_LINK_N(pipe), 0);
}

dpll |= DPLL_SYNCLOCK_ENABLE;
/* if (is_lvds)
dpll |= DPLLB_MODE_LVDS;
Expand Down
4 changes: 4 additions & 0 deletions drivers/gpu/drm/gma500/framebuffer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -764,6 +764,10 @@ static void psb_setup_outputs(struct drm_device *dev)
crtc_mask = dev_priv->ops->hdmi_mask;
clone_mask = (1 << INTEL_OUTPUT_HDMI);
break;
case INTEL_OUTPUT_DISPLAYPORT:
crtc_mask = (1 << 0) | (1 << 1);
clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT);
break;
}
encoder->possible_crtcs = crtc_mask;
encoder->possible_clones =
Expand Down
2 changes: 1 addition & 1 deletion drivers/gpu/drm/gma500/psb_intel_drv.h
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Original file line number Diff line number Diff line change
Expand Up @@ -134,7 +134,7 @@ struct psb_intel_encoder {
u32 ddi_select; /* Channel info */
#define DDI0_SELECT 0x01
#define DDI1_SELECT 0x02
#define DP_MASK 0x8000;
#define DP_MASK 0x8000
#define DDI_MASK 0x03
void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */

Expand Down

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