Re: [Intel-gfx] [PATCH v3 2/2] drm/i915/edp/jsl: Update vswing table for HBR and HBR2

Ville Syrjälä
2020-10-02T10:43:59Z

On Fri, Oct 02, 2020 at 02:54:35AM +0530, Tejas Upadhyay wrote:
> JSL has update in vswing table for eDP.
>
> BSpec: 21257
>
> Changes since V2 :
> - Added IS_EHL_JSL to replace IS_ELKHARTLAKE
> - EHL/JSL PCI ids split added
> - Changes rebased as per new drm top commit
>
> Changes since V1 :
> - IS_ELKHARTLAKE and IS_JASPERLAKE is replaced with
> HAS_PCH_MCC(EHL) and HAS_PCH_JSP(JSL) respectively
> - Reverted EHL/JSL PCI ids split change
>
> Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_ddi.c | 95 ++++++++++++++++++++++--
> 1 file changed, 89 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index b4c520348b3b..6c67232247ec 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -582,6 +582,34 @@ static const struct cnl_ddi_buf_trans ehl_combo_phy_ddi_translations_dp[] = {
> { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
> };
>
> +static const struct cnl_ddi_buf_trans jsl_combo_phy_ddi_translations_edp_hbr[] = {
> + /* NT mV Trans mV db */
> + { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 200 0.0 */
> + { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 200 250 1.9 */
> + { 0x1, 0x7F, 0x33, 0x00, 0x0C }, /* 200 300 3.5 */
> + { 0xA, 0x35, 0x36, 0x00, 0x09 }, /* 200 350 4.9 */
> + { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 250 0.0 */
> + { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 250 300 1.6 */
> + { 0xA, 0x35, 0x35, 0x00, 0x0A }, /* 250 350 2.9 */
> + { 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 300 300 0.0 */
> + { 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 300 350 1.3 */
> + { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
> +};
> +
> +static const struct cnl_ddi_buf_trans jsl_combo_phy_ddi_translations_edp_hbr2[] = {
> + /* NT mV Trans mV db */
> + { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 200 0.0 */
> + { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 250 1.9 */
> + { 0x1, 0x7F, 0x3D, 0x00, 0x02 }, /* 200 300 3.5 */
> + { 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 200 350 4.9 */
> + { 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 250 0.0 */
> + { 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 300 1.6 */
> + { 0xA, 0x35, 0x3A, 0x00, 0x05 }, /* 250 350 2.9 */
> + { 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 300 300 0.0 */
> + { 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 300 350 1.3 */
> + { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
> +};
> +
> struct icl_mg_phy_ddi_buf_trans {
> u32 cri_txdeemph_override_11_6;
> u32 cri_txdeemph_override_5_0;
> @@ -1167,6 +1195,57 @@ ehl_get_combo_buf_trans(struct intel_encoder *encoder,
> return ehl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
> }
>
> +static const struct cnl_ddi_buf_trans *
> +jsl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + int *n_entries)
> +{
> + *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
> + return icl_combo_phy_ddi_translations_hdmi;
> +}
> +
> +static const struct cnl_ddi_buf_trans *
> +jsl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + int *n_entries)
> +{
> + *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hbr2);
> + return icl_combo_phy_ddi_translations_dp_hbr2;
> +}
> +
> +static const struct cnl_ddi_buf_trans *
> +jsl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + int *n_entries)
> +{
> + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> +
> + if (dev_priv->vbt.edp.low_vswing) {
> + if (crtc_state->port_clock > 270000) {
> + *n_entries = ARRAY_SIZE(jsl_combo_phy_ddi_translations_edp_hbr2);
> + return jsl_combo_phy_ddi_translations_edp_hbr2;
> + } else {
> + *n_entries = ARRAY_SIZE(jsl_combo_phy_ddi_translations_edp_hbr);
> + return jsl_combo_phy_ddi_translations_edp_hbr;
> + }
> + }
> +
> + return jsl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
> +}
> +
> +static const struct cnl_ddi_buf_trans *
> +jsl_get_combo_buf_trans(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + int *n_entries)
> +{
> + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
> + return jsl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries);
> + else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
> + return jsl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries);
> + else
> + return jsl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries);
> +}
> +
> static const struct cnl_ddi_buf_trans *
> tgl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
> const struct intel_crtc_state *crtc_state,
> @@ -2368,8 +2447,10 @@ static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp,
> else
> tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries);
> } else if (INTEL_GEN(dev_priv) == 11) {
> - if (IS_ELKHARTLAKE(dev_priv))

Your first patch seems to have missed a bunch of things. Did you not use
eg. sed or cocci to do the conversion?

> + if (IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
> ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> + else if (IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
> + jsl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> else if (intel_phy_is_combo(dev_priv, phy))
> icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> else
> @@ -2549,8 +2630,10 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
>
> if (INTEL_GEN(dev_priv) >= 12)
> ddi_translations = tgl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> - else if (IS_ELKHARTLAKE(dev_priv))
> + else if (IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
> ddi_translations = ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> + else if (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE))
> + ddi_translations = jsl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> else
> ddi_translations = icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> if (!ddi_translations)
> @@ -3140,7 +3223,7 @@ static void intel_ddi_clk_select(struct intel_encoder *encoder,
> if (!intel_phy_is_combo(dev_priv, phy))
> intel_de_write(dev_priv, DDI_CLK_SEL(port),
> icl_pll_to_ddi_clk_sel(encoder, crtc_state));
> - else if (IS_ELKHARTLAKE(dev_priv) && port >= PORT_C)
> + else if (IS_EHL_JSL(dev_priv) && port >= PORT_C)
> /*
> * MG does not exist but the programming is required
> * to ungate DDIC and DDID
> @@ -3189,7 +3272,7 @@ static void intel_ddi_clk_disable(struct intel_encoder *encoder)
>
> if (INTEL_GEN(dev_priv) >= 11) {
> if (!intel_phy_is_combo(dev_priv, phy) ||
> - (IS_ELKHARTLAKE(dev_priv) && port >= PORT_C))
> + (IS_EHL_JSL(dev_priv) && port >= PORT_C))
> intel_de_write(dev_priv, DDI_CLK_SEL(port),
> DDI_CLK_SEL_NONE);
> } else if (IS_CANNONLAKE(dev_priv)) {
> @@ -4334,7 +4417,7 @@ void intel_ddi_compute_min_voltage_level(struct drm_i915_private *dev_priv,
> {
> if (INTEL_GEN(dev_priv) >= 12 && crtc_state->port_clock > 594000)
> crtc_state->min_voltage_level = 2;
> - else if (IS_ELKHARTLAKE(dev_priv) && crtc_state->port_clock > 594000)
> + else if (IS_EHL_JSL(dev_priv) && crtc_state->port_clock > 594000)
> crtc_state->min_voltage_level = 3;
> else if (INTEL_GEN(dev_priv) >= 11 && crtc_state->port_clock > 594000)
> crtc_state->min_voltage_level = 1;
> @@ -5186,7 +5269,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
> encoder->hpd_pin = rkl_hpd_pin(dev_priv, port);
> else if (INTEL_GEN(dev_priv) >= 12)
> encoder->hpd_pin = tgl_hpd_pin(dev_priv, port);
> - else if (IS_ELKHARTLAKE(dev_priv))
> + else if (IS_EHL_JSL(dev_priv))
> encoder->hpd_pin = ehl_hpd_pin(dev_priv, port);
> else if (IS_GEN(dev_priv, 11))
> encoder->hpd_pin = icl_hpd_pin(dev_priv, port);
> --
> 2.28.0

--
Ville Syrjälä
Intel