On Wed, Aug 23, 2023 at 10:07:38AM -0700, Lucas De Marchi wrote:
> From: Ravi Kumar Vodapalli <ravi.kumar.vodapalli@xxxxxxxxx>
>
> Add support to check c10 phy link rate for LNL in
> intel_c10_phy_check_hdmi_link_rate() function.
If it turns out the LNL tables from the previous patch aren't necessary,
then we should be able to drop this one as well.
Matt
>
> BSpec: 68862
> Signed-off-by: Ravi Kumar Vodapalli <ravi.kumar.vodapalli@xxxxxxxxx>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_cx0_phy.c | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> index c8da6985c179..d9c43f3b4f34 100644
> --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> @@ -2137,11 +2137,16 @@ static const struct intel_c20pll_state * const mtl_c20_hdmi_tables[] = {
> NULL,
> };
>
> -static int intel_c10_phy_check_hdmi_link_rate(int clock)
> +static int intel_c10_phy_check_hdmi_link_rate(struct drm_i915_private *i915, int clock)
> {
> - const struct intel_c10pll_state * const *tables = mtl_c10_hdmi_tables;
> + const struct intel_c10pll_state * const *tables;
> int i;
>
> + if (DISPLAY_VER(i915) >= 20)
> + tables = lnl_c10_hdmi_tables;
> + else
> + tables = mtl_c10_hdmi_tables;
> +
> for (i = 0; tables[i]; i++) {
> if (clock == tables[i]->clock)
> return MODE_OK;
> @@ -2414,7 +2419,7 @@ int intel_cx0_phy_check_hdmi_link_rate(struct intel_hdmi *hdmi, int clock)
> enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
>
> if (intel_is_c10phy(i915, phy))
> - return intel_c10_phy_check_hdmi_link_rate(clock);
> + return intel_c10_phy_check_hdmi_link_rate(i915, clock);
> return intel_c20_phy_check_hdmi_link_rate(clock);
> }
>
> --
> 2.40.1
>
--
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation
