On Thu, Jul 11, 2019 at 02:35:17PM -0700, Lucas De Marchi wrote:
> Add port C to workaround to cover Tiger Lake.
>
> Cc: Rodrigo Vivi
> Signed-off-by: Lucas De Marchi
> Reviewed-by: Rodrigo Vivi
> Link:
> https://patchwork.freedesktop.org/patch/msgid/20190708231629.9296-22-lucas.demar...@intel.com
Reviewed-by: Matt Roper
> ---
> drivers/gpu/drm/i915/display/intel_display_power.c | 12 +---
> drivers/gpu/drm/i915/i915_reg.h| 4 +++-
> 2 files changed, 12 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c
> b/drivers/gpu/drm/i915/display/intel_display_power.c
> index 12aa9ce08d95..d25fd5a25199 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -453,6 +453,7 @@ icl_combo_phy_aux_power_well_enable(struct
> drm_i915_private *dev_priv,
> int pw_idx = power_well->desc->hsw.idx;
> enum phy phy = ICL_AUX_PW_TO_PHY(pw_idx);
> u32 val;
> + int wa_idx_max;
>
> val = I915_READ(regs->driver);
> I915_WRITE(regs->driver, val | HSW_PWR_WELL_CTL_REQ(pw_idx));
> @@ -462,9 +463,14 @@ icl_combo_phy_aux_power_well_enable(struct
> drm_i915_private *dev_priv,
>
> hsw_wait_for_power_well_enable(dev_priv, power_well);
>
> - /* Display WA #1178: icl */
> - if (IS_ICELAKE(dev_priv) &&
> - pw_idx >= ICL_PW_CTL_IDX_AUX_A && pw_idx <= ICL_PW_CTL_IDX_AUX_B &&
> + /* Display WA #1178: icl, tgl */
> + if (IS_TIGERLAKE(dev_priv))
> + wa_idx_max = ICL_PW_CTL_IDX_AUX_C;
> + else
> + wa_idx_max = ICL_PW_CTL_IDX_AUX_B;
> +
> + if (!IS_ELKHARTLAKE(dev_priv) &&
> + pw_idx >= ICL_PW_CTL_IDX_AUX_A && pw_idx <= wa_idx_max &&
> !intel_bios_is_port_edp(dev_priv, (enum port)phy)) {
> val = I915_READ(ICL_AUX_ANAOVRD1(pw_idx));
> val |= ICL_AUX_ANAOVRD1_ENABLE | ICL_AUX_ANAOVRD1_LDO_BYPASS;
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index b1a6628199e4..a8e2e05e7d7e 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -9274,9 +9274,11 @@ enum skl_power_gate {
> #define _ICL_AUX_REG_IDX(pw_idx) ((pw_idx) - ICL_PW_CTL_IDX_AUX_A)
> #define _ICL_AUX_ANAOVRD1_A 0x162398
> #define _ICL_AUX_ANAOVRD1_B 0x6C398
> +#define _TGL_AUX_ANAOVRD1_C 0x160398
> #define ICL_AUX_ANAOVRD1(pw_idx) _MMIO(_PICK(_ICL_AUX_REG_IDX(pw_idx), \
> _ICL_AUX_ANAOVRD1_A, \
> - _ICL_AUX_ANAOVRD1_B))
> + _ICL_AUX_ANAOVRD1_B, \
> + _TGL_AUX_ANAOVRD1_C))
> #define ICL_AUX_ANAOVRD1_LDO_BYPASS(1 << 7)
> #define ICL_AUX_ANAOVRD1_ENABLE(1 << 0)
>
> --
> 2.21.0
>
--
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
___
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
