From: Rodrigo Vivi Date: Mon, 24 Aug 2015 23:48:44 +0000 (-0700) Subject: drm/i915/skl: Update DDI buffer translation programming. X-Git-Tag: firefly_0821_release~176^2~1083^2~11^2~2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5f8b253147c27b8244451ee28aeb3429c5aa2e52;p=firefly-linux-kernel-4.4.55.git drm/i915/skl: Update DDI buffer translation programming. SKL-Y can now use the same programming for all VccIO values after an adjustment to I_boost. SKL-U DP table adjustments. 1. Remove SKL Y 0.95V from "SKL H and S" columns in all tables. The other SKL Y column removes the "0.85V VccIO" so it now applies to all voltages. 2. DP table changes SKL U 400mV+0db dword 0 value from 2016h to 201Bh. 3. DP table changes SKL U 600mv+0db dword 0 value from 2016h to 201Bh. 4. DP table increases I_boost to level 3 for SKL Y 400mv+9.5db. v2: Fix compilation warnings as pointed by Paulo. Reference: Graphics Spec Change r97962 Cc: Arthur Runyan Signed-off-by: Rodrigo Vivi Reviewed-by: Paulo Zanoni [Jani: reformatted commit message for shorter lines.] Signed-off-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 6cfe65d6a8cf..19004557c868 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -128,7 +128,7 @@ static const struct ddi_buf_trans bdw_ddi_translations_hdmi[] = { { 0x80FFFFFF, 0x001B0002, 0x0 },/* 9: 1000 1000 0 */ }; -/* Skylake H, S, and Skylake Y with 0.95V VccIO */ +/* Skylake H and S */ static const struct ddi_buf_trans skl_ddi_translations_dp[] = { { 0x00002016, 0x000000A0, 0x0 }, { 0x00005012, 0x0000009B, 0x0 }, @@ -143,23 +143,23 @@ static const struct ddi_buf_trans skl_ddi_translations_dp[] = { /* Skylake U */ static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = { - { 0x00002016, 0x000000A2, 0x0 }, + { 0x0000201B, 0x000000A2, 0x0 }, { 0x00005012, 0x00000088, 0x0 }, { 0x00007011, 0x00000087, 0x0 }, - { 0x80009010, 0x000000C7, 0x1 }, /* Uses I_boost */ - { 0x00002016, 0x0000009D, 0x0 }, + { 0x80009010, 0x000000C7, 0x1 }, /* Uses I_boost level 0x1 */ + { 0x0000201B, 0x0000009D, 0x0 }, { 0x00005012, 0x000000C7, 0x0 }, { 0x00007011, 0x000000C7, 0x0 }, { 0x00002016, 0x00000088, 0x0 }, { 0x00005012, 0x000000C7, 0x0 }, }; -/* Skylake Y with 0.85V VccIO */ -static const struct ddi_buf_trans skl_y_085v_ddi_translations_dp[] = { +/* Skylake Y */ +static const struct ddi_buf_trans skl_y_ddi_translations_dp[] = { { 0x00000018, 0x000000A2, 0x0 }, { 0x00005012, 0x00000088, 0x0 }, { 0x00007011, 0x00000087, 0x0 }, - { 0x80009010, 0x000000C7, 0x1 }, /* Uses I_boost */ + { 0x80009010, 0x000000C7, 0x3 }, /* Uses I_boost level 0x3 */ { 0x00000018, 0x0000009D, 0x0 }, { 0x00005012, 0x000000C7, 0x0 }, { 0x00007011, 0x000000C7, 0x0 }, @@ -168,7 +168,7 @@ static const struct ddi_buf_trans skl_y_085v_ddi_translations_dp[] = { }; /* - * Skylake H and S, and Skylake Y with 0.95V VccIO + * Skylake H and S * eDP 1.4 low vswing translation parameters */ static const struct ddi_buf_trans skl_ddi_translations_edp[] = { @@ -202,10 +202,10 @@ static const struct ddi_buf_trans skl_u_ddi_translations_edp[] = { }; /* - * Skylake Y with 0.95V VccIO + * Skylake Y * eDP 1.4 low vswing translation parameters */ -static const struct ddi_buf_trans skl_y_085v_ddi_translations_edp[] = { +static const struct ddi_buf_trans skl_y_ddi_translations_edp[] = { { 0x00000018, 0x000000A8, 0x0 }, { 0x00004013, 0x000000AB, 0x0 }, { 0x00007011, 0x000000A4, 0x0 }, @@ -218,7 +218,7 @@ static const struct ddi_buf_trans skl_y_085v_ddi_translations_edp[] = { { 0x00000018, 0x0000008A, 0x0 }, }; -/* Skylake H, S and U, and Skylake Y with 0.95V VccIO */ +/* Skylake U, H and S */ static const struct ddi_buf_trans skl_ddi_translations_hdmi[] = { { 0x00000018, 0x000000AC, 0x0 }, { 0x00005012, 0x0000009D, 0x0 }, @@ -233,8 +233,8 @@ static const struct ddi_buf_trans skl_ddi_translations_hdmi[] = { { 0x00000018, 0x000000C7, 0x0 }, }; -/* Skylake Y with 0.85V VccIO */ -static const struct ddi_buf_trans skl_y_085v_ddi_translations_hdmi[] = { +/* Skylake Y */ +static const struct ddi_buf_trans skl_y_ddi_translations_hdmi[] = { { 0x00000018, 0x000000A1, 0x0 }, { 0x00005012, 0x000000DF, 0x0 }, { 0x00007011, 0x00000084, 0x0 }, @@ -244,7 +244,7 @@ static const struct ddi_buf_trans skl_y_085v_ddi_translations_hdmi[] = { { 0x00006013, 0x000000C7, 0x0 }, { 0x00000018, 0x0000008A, 0x0 }, { 0x00003015, 0x000000C7, 0x0 }, /* Default */ - { 0x80003015, 0x000000C7, 0x7 }, /* Uses I_boost */ + { 0x80003015, 0x000000C7, 0x7 }, /* Uses I_boost level 0x7 */ { 0x00000018, 0x000000C7, 0x0 }, }; @@ -335,19 +335,11 @@ intel_dig_port_supports_hdmi(const struct intel_digital_port *intel_dig_port) static const struct ddi_buf_trans *skl_get_buf_trans_dp(struct drm_device *dev, int *n_entries) { - struct drm_i915_private *dev_priv = dev->dev_private; const struct ddi_buf_trans *ddi_translations; - static int is_095v = -1; - - if (is_095v == -1) { - u32 spr1 = I915_READ(UAIMI_SPR1); - - is_095v = spr1 & SKL_VCCIO_MASK; - } - if (IS_SKL_ULX(dev) && !is_095v) { - ddi_translations = skl_y_085v_ddi_translations_dp; - *n_entries = ARRAY_SIZE(skl_y_085v_ddi_translations_dp); + if (IS_SKL_ULX(dev)) { + ddi_translations = skl_y_ddi_translations_dp; + *n_entries = ARRAY_SIZE(skl_y_ddi_translations_dp); } else if (IS_SKL_ULT(dev)) { ddi_translations = skl_u_ddi_translations_dp; *n_entries = ARRAY_SIZE(skl_u_ddi_translations_dp); @@ -364,23 +356,14 @@ static const struct ddi_buf_trans *skl_get_buf_trans_edp(struct drm_device *dev, { struct drm_i915_private *dev_priv = dev->dev_private; const struct ddi_buf_trans *ddi_translations; - static int is_095v = -1; - - if (is_095v == -1) { - u32 spr1 = I915_READ(UAIMI_SPR1); - is_095v = spr1 & SKL_VCCIO_MASK; - } - - if (IS_SKL_ULX(dev) && !is_095v) { + if (IS_SKL_ULX(dev)) { if (dev_priv->edp_low_vswing) { - ddi_translations = skl_y_085v_ddi_translations_edp; - *n_entries = - ARRAY_SIZE(skl_y_085v_ddi_translations_edp); + ddi_translations = skl_y_ddi_translations_edp; + *n_entries = ARRAY_SIZE(skl_y_ddi_translations_edp); } else { - ddi_translations = skl_y_085v_ddi_translations_dp; - *n_entries = - ARRAY_SIZE(skl_y_085v_ddi_translations_dp); + ddi_translations = skl_y_ddi_translations_dp; + *n_entries = ARRAY_SIZE(skl_y_ddi_translations_dp); } } else if (IS_SKL_ULT(dev)) { if (dev_priv->edp_low_vswing) { @@ -407,19 +390,11 @@ static const struct ddi_buf_trans * skl_get_buf_trans_hdmi(struct drm_device *dev, int *n_entries) { - struct drm_i915_private *dev_priv = dev->dev_private; const struct ddi_buf_trans *ddi_translations; - static int is_095v = -1; - - if (is_095v == -1) { - u32 spr1 = I915_READ(UAIMI_SPR1); - - is_095v = spr1 & SKL_VCCIO_MASK; - } - if (IS_SKL_ULX(dev) && !is_095v) { - ddi_translations = skl_y_085v_ddi_translations_hdmi; - *n_entries = ARRAY_SIZE(skl_y_085v_ddi_translations_hdmi); + if (IS_SKL_ULX(dev)) { + ddi_translations = skl_y_ddi_translations_hdmi; + *n_entries = ARRAY_SIZE(skl_y_ddi_translations_hdmi); } else { ddi_translations = skl_ddi_translations_hdmi; *n_entries = ARRAY_SIZE(skl_ddi_translations_hdmi);