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drm/i915/bdw: Provide the BDW specific HDMI buffer translation table 

Among the changes, the tables has only 10 entries instead of 12 on HSW
and the index the the 800mV/0dB entry has changed.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau 2014-08-01 11:07:55 +01:00 committed by Daniel Vetter
parent ce4dd49e97
commit a26aa8baee
1 changed files with 23 additions and 5 deletions
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28
drivers/gpu/drm/i915/intel_ddi.c
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@ -111,6 +111,20 @@ static const u32 bdw_ddi_translations_fdi[] = {
0x00FFFFFF, 0x00140006 /* HDMI parameters 800mV 0dB*/
};
static const u32 bdw_ddi_translations_hdmi[] = {
/* Idx NT mV diff T mV diff db */
0x00FFFFFF, 0x0007000E, /* 0: 400 400 0 */
0x00D75FFF, 0x000E000A, /* 1: 400 600 3.5 */
0x00BEFFFF, 0x00140006, /* 2: 400 800 6 */
0x00FFFFFF, 0x0009000D, /* 3: 450 450 0 */
0x00FFFFFF, 0x000E000A, /* 4: 600 600 0 */
0x00D7FFFF, 0x00140006, /* 5: 600 800 2.5 */
0x80CB2FFF, 0x001B0002, /* 6: 600 1000 4.5 */
0x00FFFFFF, 0x00140006, /* 7: 800 800 0 */
0x80E79FFF, 0x001B0002, /* 8: 800 1000 2 */
0x80FFFFFF, 0x001B0002, /* 9: 1000 1000 0 */
};
enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder)
{
struct drm_encoder *encoder = &intel_encoder->base;
@ -150,18 +164,21 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port)
const u32 *ddi_translations_fdi;
const u32 *ddi_translations_dp;
const u32 *ddi_translations_edp;
const u32 *ddi_translations_hdmi;
const u32 *ddi_translations;
if (IS_BROADWELL(dev)) {
ddi_translations_fdi = bdw_ddi_translations_fdi;
ddi_translations_dp = bdw_ddi_translations_dp;
ddi_translations_edp = bdw_ddi_translations_edp;
n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi);
hdmi_800mV_0dB = 6;
ddi_translations_hdmi = bdw_ddi_translations_hdmi;
n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi);
hdmi_800mV_0dB = 7;
} else if (IS_HASWELL(dev)) {
ddi_translations_fdi = hsw_ddi_translations_fdi;
ddi_translations_dp = hsw_ddi_translations_dp;
ddi_translations_edp = hsw_ddi_translations_dp;
ddi_translations_hdmi = hsw_ddi_translations_hdmi;
n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi);
hdmi_800mV_0dB = 6;
} else {
@ -169,8 +186,9 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port)
ddi_translations_edp = bdw_ddi_translations_dp;
ddi_translations_fdi = bdw_ddi_translations_fdi;
ddi_translations_dp = bdw_ddi_translations_dp;
n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi);
hdmi_800mV_0dB = 6;
ddi_translations_hdmi = bdw_ddi_translations_hdmi;
n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi);
hdmi_800mV_0dB = 7;
}
switch (port) {
@ -207,7 +225,7 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port)
/* Entry 9 is for HDMI: */
for (i = 0; i < 2; i++) {
I915_WRITE(reg, hsw_ddi_translations_hdmi[hdmi_level * 2 + i]);
I915_WRITE(reg, ddi_translations_hdmi[hdmi_level * 2 + i]);
reg += 4;
}
}