From ff7fb44d00e5dac1fb31170a9d08ccd352f5114f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Roberto=20de=20Souza?= Date: Fri, 8 Jan 2021 05:48:02 -0800 Subject: [PATCH] drm/i915: Fix HTI port checking MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit There was some misinterpretation of specification, when DDIX_USED is set, the next bit means 0 for DP and 1 for HDMI. Anyways this misinterpretation is not causing any issues, this change is just to comply with specification. Also as for us it do not matters if it is HDMI or DP, not checking the port type that HTI is using. Cc: Anusha Srivatsa Cc: Matt Roper Signed-off-by: José Roberto de Souza Reviewed-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20210108134802.21280-1-jose.souza@intel.com --- drivers/gpu/drm/i915/display/intel_ddi.c | 3 +-- drivers/gpu/drm/i915/i915_reg.h | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 3df6913..e90d1af 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -5321,8 +5321,7 @@ intel_ddi_max_lanes(struct intel_digital_port *dig_port) static bool hti_uses_phy(struct drm_i915_private *i915, enum phy phy) { return i915->hti_state & HDPORT_ENABLED && - (i915->hti_state & HDPORT_PHY_USED_DP(phy) || - i915->hti_state & HDPORT_PHY_USED_HDMI(phy)); + i915->hti_state & HDPORT_DDI_USED(phy); } static enum hpd_pin dg1_hpd_pin(struct drm_i915_private *dev_priv, diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 0023c02..1d8ba10 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2928,8 +2928,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define HDPORT_STATE _MMIO(0x45050) #define HDPORT_DPLL_USED_MASK REG_GENMASK(14, 12) -#define HDPORT_PHY_USED_DP(phy) REG_BIT(2 * (phy) + 2) -#define HDPORT_PHY_USED_HDMI(phy) REG_BIT(2 * (phy) + 1) +#define HDPORT_DDI_USED(phy) REG_BIT(2 * (phy) + 1) #define HDPORT_ENABLED REG_BIT(0) /* Make render/texture TLB fetches lower priorty than associated data -- 2.7.4