From: Paulo Zanoni Date: Mon, 18 Feb 2013 22:00:27 +0000 (-0300) Subject: drm/i915: clarify confusion between SDVO and HDMI registers X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e2debe919a859a350a542a361705a51e4567b6db;p=openwrt%2Fstaging%2Fblogic.git drm/i915: clarify confusion between SDVO and HDMI registers Some HDMI registers can be used for SDVO, so saying "HDMIB" should be the same as saying "SDVOB" for a given HW generation. This was not true and led to confusions and even a regression. Previously we had: - SDVO{B,C} defined as the Gen3+ registers - HDMI{B,C,D} and PCH_SDVOB defined as the PCH registers But now: - SDVO{B,C} became GEN3_SDVO{B,C} on SDVO code - SDVO{B,C} became GEN4_HDMI{B,C} on HDMI code - HDMI{B,C,D} became PCH_HDMI{B,C,D} - PCH_SDVOB is still the same thing v2: Rebase (v1 was sent in May 2012). Signed-off-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c6d482fdf89b..448e13c26c87 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1681,8 +1681,9 @@ #define SDVOB_HOTPLUG_INT_STATUS_I915 (1 << 6) /* SDVO port control */ -#define SDVOB 0x61140 -#define SDVOC 0x61160 +#define GEN3_SDVOB 0x61140 +#define GEN3_SDVOC 0x61160 +#define PCH_SDVOB 0xe1140 #define SDVO_ENABLE (1 << 31) #define SDVO_PIPE_B_SELECT (1 << 30) #define SDVO_STALL_SELECT (1 << 29) @@ -3982,8 +3983,12 @@ #define FDI_PLL_CTL_1 0xfe000 #define FDI_PLL_CTL_2 0xfe004 -/* or SDVOB */ -#define HDMIB 0xe1140 +/* The same register may be used for SDVO or HDMI */ +#define GEN4_HDMIB GEN3_SDVOB +#define GEN4_HDMIC GEN3_SDVOC +#define PCH_HDMIB PCH_SDVOB +#define PCH_HDMIC 0xe1150 +#define PCH_HDMID 0xe1160 #define PORT_ENABLE (1 << 31) #define TRANSCODER(pipe) ((pipe) << 30) #define TRANSCODER_CPT(pipe) ((pipe) << 29) @@ -4004,12 +4009,6 @@ #define HSYNC_ACTIVE_HIGH (1 << 3) #define PORT_DETECTED (1 << 2) -/* PCH SDVOB multiplex with HDMIB */ -#define PCH_SDVOB HDMIB - -#define HDMIC 0xe1150 -#define HDMID 0xe1160 - #define PCH_LVDS 0xe1180 #define LVDS_DETECTED (1 << 1) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9c9716ac7ede..1048046fcb6e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1432,9 +1432,9 @@ static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, "PCH LVDS enabled on transcoder %c, should be disabled\n", pipe_name(pipe)); - assert_pch_hdmi_disabled(dev_priv, pipe, HDMIB); - assert_pch_hdmi_disabled(dev_priv, pipe, HDMIC); - assert_pch_hdmi_disabled(dev_priv, pipe, HDMID); + assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); + assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); + assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); } /** @@ -8352,20 +8352,20 @@ static void intel_setup_outputs(struct drm_device *dev) if (has_edp_a(dev)) intel_dp_init(dev, DP_A, PORT_A); - if (I915_READ(HDMIB) & PORT_DETECTED) { + if (I915_READ(PCH_HDMIB) & PORT_DETECTED) { /* PCH SDVOB multiplex with HDMIB */ found = intel_sdvo_init(dev, PCH_SDVOB, true); if (!found) - intel_hdmi_init(dev, HDMIB, PORT_B); + intel_hdmi_init(dev, PCH_HDMIB, PORT_B); if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED)) intel_dp_init(dev, PCH_DP_B, PORT_B); } - if (I915_READ(HDMIC) & PORT_DETECTED) - intel_hdmi_init(dev, HDMIC, PORT_C); + if (I915_READ(PCH_HDMIC) & PORT_DETECTED) + intel_hdmi_init(dev, PCH_HDMIC, PORT_C); - if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) - intel_hdmi_init(dev, HDMID, PORT_D); + if (!dpd_is_edp && I915_READ(PCH_HDMID) & PORT_DETECTED) + intel_hdmi_init(dev, PCH_HDMID, PORT_D); if (I915_READ(PCH_DP_C) & DP_DETECTED) intel_dp_init(dev, PCH_DP_C, PORT_C); @@ -8377,24 +8377,26 @@ static void intel_setup_outputs(struct drm_device *dev) if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED) intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C); - if (I915_READ(VLV_DISPLAY_BASE + SDVOB) & PORT_DETECTED) { - intel_hdmi_init(dev, VLV_DISPLAY_BASE + SDVOB, PORT_B); + if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & PORT_DETECTED) { + intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB, + PORT_B); if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED) intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B); } - if (I915_READ(VLV_DISPLAY_BASE + SDVOC) & PORT_DETECTED) - intel_hdmi_init(dev, VLV_DISPLAY_BASE + SDVOC, PORT_C); + if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & PORT_DETECTED) + intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC, + PORT_C); } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) { bool found = false; - if (I915_READ(SDVOB) & SDVO_DETECTED) { + if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { DRM_DEBUG_KMS("probing SDVOB\n"); - found = intel_sdvo_init(dev, SDVOB, true); + found = intel_sdvo_init(dev, GEN3_SDVOB, true); if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); - intel_hdmi_init(dev, SDVOB, PORT_B); + intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); } if (!found && SUPPORTS_INTEGRATED_DP(dev)) { @@ -8405,16 +8407,16 @@ static void intel_setup_outputs(struct drm_device *dev) /* Before G4X SDVOC doesn't have its own detect register */ - if (I915_READ(SDVOB) & SDVO_DETECTED) { + if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { DRM_DEBUG_KMS("probing SDVOC\n"); - found = intel_sdvo_init(dev, SDVOC, false); + found = intel_sdvo_init(dev, GEN3_SDVOC, false); } - if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) { + if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) { if (SUPPORTS_INTEGRATED_HDMI(dev)) { DRM_DEBUG_KMS("probing HDMI on SDVOC\n"); - intel_hdmi_init(dev, SDVOC, PORT_C); + intel_hdmi_init(dev, GEN4_HDMIC, PORT_C); } if (SUPPORTS_INTEGRATED_DP(dev)) { DRM_DEBUG_KMS("probing DP_C\n"); diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index f01063a2323a..7d94db8559ee 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -246,11 +246,11 @@ static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val) return; } - if (intel_sdvo->sdvo_reg == SDVOB) { - cval = I915_READ(SDVOC); - } else { - bval = I915_READ(SDVOB); - } + if (intel_sdvo->sdvo_reg == GEN3_SDVOB) + cval = I915_READ(GEN3_SDVOC); + else + bval = I915_READ(GEN3_SDVOB); + /* * Write the registers twice for luck. Sometimes, * writing them only once doesn't appear to 'stick'. @@ -258,10 +258,10 @@ static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val) */ for (i = 0; i < 2; i++) { - I915_WRITE(SDVOB, bval); - I915_READ(SDVOB); - I915_WRITE(SDVOC, cval); - I915_READ(SDVOC); + I915_WRITE(GEN3_SDVOB, bval); + I915_READ(GEN3_SDVOB); + I915_WRITE(GEN3_SDVOC, cval); + I915_READ(GEN3_SDVOC); } } @@ -1182,10 +1182,10 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, } else { sdvox = I915_READ(intel_sdvo->sdvo_reg); switch (intel_sdvo->sdvo_reg) { - case SDVOB: + case GEN3_SDVOB: sdvox &= SDVOB_PRESERVE_MASK; break; - case SDVOC: + case GEN3_SDVOC: sdvox &= SDVOC_PRESERVE_MASK; break; }