From 6c9547ff354d867318d78094aa8e9cf5218851e2 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 25 Aug 2010 10:05:17 +0100 Subject: [PATCH] drm/i915/sdvo: Preserve pixel-multiplier Store the pixel-multiplier on the adjusted mode and avoid modifying the requested mode. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/intel_display.c | 25 ++++--- drivers/gpu/drm/i915/intel_drv.h | 18 +++++ drivers/gpu/drm/i915/intel_sdvo.c | 99 ++++++++++++---------------- 3 files changed, 75 insertions(+), 67 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index adce19304eee..120a9c0c2da6 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3519,7 +3519,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, int trans_dpll_sel = (pipe == 0) ? 0 : 1; int lvds_reg = LVDS; u32 temp; - int sdvo_pixel_multiply; int target_clock; drm_vblank_pre_modeset(dev, pipe); @@ -3770,12 +3769,14 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, else dpll |= DPLLB_MODE_DAC_SERIAL; if (is_sdvo) { + int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); + if (pixel_multiplier > 1) { + if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) + dpll |= (pixel_multiplier - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; + else if (HAS_PCH_SPLIT(dev)) + dpll |= (pixel_multiplier - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; + } dpll |= DPLL_DVO_HIGH_SPEED; - sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; - if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) - dpll |= (sdvo_pixel_multiply - 1) << SDVO_MULTIPLIER_SHIFT_HIRES; - else if (HAS_PCH_SPLIT(dev)) - dpll |= (sdvo_pixel_multiply - 1) << PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT; } if (is_dp) dpll |= DPLL_DVO_HIGH_SPEED; @@ -3982,9 +3983,15 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) { if (is_sdvo) { - sdvo_pixel_multiply = adjusted_mode->clock / mode->clock; - I915_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | - ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT)); + int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); + if (pixel_multiplier > 1) + pixel_multiplier = (pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT; + else + pixel_multiplier = 0; + + I915_WRITE(dpll_md_reg, + (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | + pixel_multiplier); } else I915_WRITE(dpll_md_reg, 0); } else { diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 1ca3c9e2667a..64a7c87817d7 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -99,6 +99,24 @@ #define INTEL_DVO_CHIP_TMDS 2 #define INTEL_DVO_CHIP_TVOUT 4 +/* drm_display_mode->private_flags */ +#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0) +#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT) + +static inline void +intel_mode_set_pixel_multiplier(struct drm_display_mode *mode, + int multiplier) +{ + mode->clock *= multiplier; + mode->private_flags |= multiplier; +} + +static inline int +intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode) +{ + return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT; +} + struct intel_i2c_chan { struct drm_device *drm_dev; /* for getting at dev. private (mmio etc.) */ u32 reg; /* GPIO reg */ diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index e3b7a7ee39cb..1c1aeea81e56 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -106,15 +106,11 @@ struct intel_sdvo { bool is_hdmi; /** - * This is set if we detect output of sdvo device as LVDS. + * This is set if we detect output of sdvo device as LVDS and + * have a valid fixed mode to use with the panel. */ bool is_lvds; - /** - * This is sdvo flags for input timing. - */ - uint8_t sdvo_flags; - /** * This is sdvo fixed pannel mode pointer */ @@ -132,6 +128,8 @@ struct intel_sdvo { /* Mac mini hack -- use the same DDC as the analog connector */ struct i2c_adapter *analog_ddc_bus; + /* Input timings for adjusted_mode */ + struct intel_sdvo_dtd input_dtd; }; struct intel_sdvo_connector { @@ -1022,8 +1020,6 @@ intel_sdvo_set_input_timings_for_mode(struct intel_sdvo *intel_sdvo, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { - struct intel_sdvo_dtd input_dtd; - /* Reset the input timing to the screen. Assume always input 0. */ if (!intel_sdvo_set_target_input(intel_sdvo)) return false; @@ -1035,14 +1031,12 @@ intel_sdvo_set_input_timings_for_mode(struct intel_sdvo *intel_sdvo, return false; if (!intel_sdvo_get_preferred_input_timing(intel_sdvo, - &input_dtd)) + &intel_sdvo->input_dtd)) return false; - intel_sdvo_get_mode_from_dtd(adjusted_mode, &input_dtd); - intel_sdvo->sdvo_flags = input_dtd.part2.sdvo_flags; + intel_sdvo_get_mode_from_dtd(adjusted_mode, &intel_sdvo->input_dtd); drm_mode_set_crtcinfo(adjusted_mode, 0); - mode->clock = adjusted_mode->clock; return true; } @@ -1051,6 +1045,7 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *adjusted_mode) { struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder); + int multiplier; /* We need to construct preferred input timings based on our * output timings. To do that, we have to set the output @@ -1065,10 +1060,8 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder, mode, adjusted_mode); } else if (intel_sdvo->is_lvds) { - drm_mode_set_crtcinfo(intel_sdvo->sdvo_lvds_fixed_mode, 0); - if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, - intel_sdvo->sdvo_lvds_fixed_mode)) + intel_sdvo->sdvo_lvds_fixed_mode)) return false; (void) intel_sdvo_set_input_timings_for_mode(intel_sdvo, @@ -1077,9 +1070,10 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder, } /* Make the CRTC code factor in the SDVO pixel multiplier. The - * SDVO device will be told of the multiplier during mode_set. + * SDVO device will factor out the multiplier during mode_set. */ - adjusted_mode->clock *= intel_sdvo_get_pixel_multiplier(mode); + multiplier = intel_sdvo_get_pixel_multiplier(adjusted_mode); + intel_mode_set_pixel_multiplier(adjusted_mode, multiplier); return true; } @@ -1093,10 +1087,11 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, struct drm_crtc *crtc = encoder->crtc; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct intel_sdvo *intel_sdvo = enc_to_intel_sdvo(encoder); - u32 sdvox = 0; - int sdvo_pixel_multiply, rate; + u32 sdvox; struct intel_sdvo_in_out_map in_out; struct intel_sdvo_dtd input_dtd; + int pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode); + int rate; if (!mode) return; @@ -1114,28 +1109,23 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, SDVO_CMD_SET_IN_OUT_MAP, &in_out, sizeof(in_out)); - if (intel_sdvo->is_hdmi) { - if (!intel_sdvo_set_avi_infoframe(intel_sdvo, mode)) - return; - - sdvox |= SDVO_AUDIO_ENABLE; - } + /* Set the output timings to the screen */ + if (!intel_sdvo_set_target_output(intel_sdvo, + intel_sdvo->attached_output)) + return; /* We have tried to get input timing in mode_fixup, and filled into - adjusted_mode */ - intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); - if (intel_sdvo->is_tv || intel_sdvo->is_lvds) - input_dtd.part2.sdvo_flags = intel_sdvo->sdvo_flags; - - /* If it's a TV, we already set the output timing in mode_fixup. - * Otherwise, the output timing is equal to the input timing. + * adjusted_mode. */ - if (!intel_sdvo->is_tv && !intel_sdvo->is_lvds) { + if (intel_sdvo->is_tv || intel_sdvo->is_lvds) { + input_dtd = intel_sdvo->input_dtd; + } else { /* Set the output timing to the screen */ if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output)) return; + intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode); (void) intel_sdvo_set_output_timing(intel_sdvo, &input_dtd); } @@ -1143,31 +1133,18 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, if (!intel_sdvo_set_target_input(intel_sdvo)) return; - if (intel_sdvo->is_tv) { - if (!intel_sdvo_set_tv_format(intel_sdvo)) - return; - } + if (intel_sdvo->is_hdmi && + !intel_sdvo_set_avi_infoframe(intel_sdvo, mode)) + return; - /* We would like to use intel_sdvo_create_preferred_input_timing() to - * provide the device with a timing it can support, if it supports that - * feature. However, presumably we would need to adjust the CRTC to - * output the preferred timing, and we don't support that currently. - */ -#if 0 - success = intel_sdvo_create_preferred_input_timing(encoder, clock, - width, height); - if (success) { - struct intel_sdvo_dtd *input_dtd; + if (intel_sdvo->is_tv && + !intel_sdvo_set_tv_format(intel_sdvo)) + return; - intel_sdvo_get_preferred_input_timing(encoder, &input_dtd); - intel_sdvo_set_input_timing(encoder, &input_dtd); - } -#else (void) intel_sdvo_set_input_timing(intel_sdvo, &input_dtd); -#endif - sdvo_pixel_multiply = intel_sdvo_get_pixel_multiplier(mode); - switch (sdvo_pixel_multiply) { + switch (pixel_multiplier) { + default: case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break; case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break; case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break; @@ -1177,13 +1154,13 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, /* Set the SDVO control regs. */ if (IS_I965G(dev)) { - sdvox |= SDVO_BORDER_ENABLE; + sdvox = SDVO_BORDER_ENABLE; if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) sdvox |= SDVO_VSYNC_ACTIVE_HIGH; if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) sdvox |= SDVO_HSYNC_ACTIVE_HIGH; } else { - sdvox |= I915_READ(intel_sdvo->sdvo_reg); + sdvox = I915_READ(intel_sdvo->sdvo_reg); switch (intel_sdvo->sdvo_reg) { case SDVOB: sdvox &= SDVOB_PRESERVE_MASK; @@ -1196,16 +1173,18 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder, } if (intel_crtc->pipe == 1) sdvox |= SDVO_PIPE_B_SELECT; + if (intel_sdvo->is_hdmi) + sdvox |= SDVO_AUDIO_ENABLE; if (IS_I965G(dev)) { /* done in crtc_mode_set as the dpll_md reg must be written early */ } else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) { /* done in crtc_mode_set as it lives inside the dpll register */ } else { - sdvox |= (sdvo_pixel_multiply - 1) << SDVO_PORT_MULTIPLY_SHIFT; + sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT; } - if (intel_sdvo->sdvo_flags & SDVO_NEED_TO_STALL) + if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL) sdvox |= SDVO_STALL_SELECT; intel_sdvo_write_sdvox(intel_sdvo, sdvox); } @@ -1692,6 +1671,10 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector) if (newmode->type & DRM_MODE_TYPE_PREFERRED) { intel_sdvo->sdvo_lvds_fixed_mode = drm_mode_duplicate(connector->dev, newmode); + + drm_mode_set_crtcinfo(intel_sdvo->sdvo_lvds_fixed_mode, + 0); + intel_sdvo->is_lvds = true; break; } -- GitLab