[Intel-gfx] [PATCH 04/26] drm/i915: update VLV PLL and DPIO code
Jani Nikula
jani.nikula at linux.intel.com
Tue Mar 5 16:05:01 CET 2013
On Sat, 02 Mar 2013, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> From: Pallavi G <pallavi.g at intel.com>
>
> In Valleyview voltage swing, pre-emphasis and lane control registers can
> be programmed only through the h/w side band fabric. Update
> vlv_update_pll, i9xx_crtc_enable, and intel_enable_pll with the
> appropriate programming.
>
> We need to make sure that the tx lane reset occurs in both the full mode
> set and DPMS paths, so factor things out to allow that.
>
> v2: use different DPIO_DIVISOR values for VGA and DisplayPort
> v3: Fix update pll logic to use same DPIO_DIVISOR & DPIO_REFSFR values
> for all display interfaces
> v4: collapse with various updates
> v5: squash with crtc enable/pll enable bits
>
> Signed-off-by: Pallavi G <pallavi.g at intel.com>
> Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman at intel.com>
> Signed-off-by: Gajanan Bhat <gajanan.bhat at intel.com>
> Signed-off-by: Ben Widawsky <benjamin.widawsky at intel.com>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 54 ++++++-
> drivers/gpu/drm/i915/intel_display.c | 266 ++++++++++++++++++++++++++--------
> drivers/gpu/drm/i915/intel_dp.c | 8 +-
> 3 files changed, 261 insertions(+), 67 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index fd55b20..b0124e3 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -388,14 +388,61 @@
> #define _DPIO_CORE_CLK_B 0x803c
> #define DPIO_CORE_CLK(pipe) _PIPE(pipe, _DPIO_CORE_CLK_A, _DPIO_CORE_CLK_B)
>
> +#define _DPIO_IREF_CTL_A 0x8040
> +#define _DPIO_IREF_CTL_B 0x8060
> +#define DPIO_IREF_CTL(pipe) _PIPE(pipe, _DPIO_IREF_CTL_A, _DPIO_IREF_CTL_B)
> +
> +#define _DPIO_IREF_A 0x8044
> +#define _DPIO_IREF_B 0x8064
> +#define DPIO_IREF(pipe) _PIPE(pipe, _DPIO_IREF_A, _DPIO_IREF_B)
> +
> +#define _DPIO_PLL_CML_A 0x804c
> +#define _DPIO_PLL_CML_B 0x806c
> +#define DPIO_PLL_CML(pipe) _PIPE(pipe, _DPIO_PLL_CML_A, _DPIO_PLL_CML_B)
> +
> #define _DPIO_LFP_COEFF_A 0x8048
> #define _DPIO_LFP_COEFF_B 0x8068
> #define DPIO_LFP_COEFF(pipe) _PIPE(pipe, _DPIO_LFP_COEFF_A, _DPIO_LFP_COEFF_B)
>
> +#define DPIO_CALIBRATION 0x80ac
> +
> #define DPIO_FASTCLK_DISABLE 0x8100
>
> -#define DPIO_DATA_CHANNEL1 0x8220
> -#define DPIO_DATA_CHANNEL2 0x8420
> +#define _DPIO_PCS_TX_0 0x8200
> +#define _DPIO_PCS_TX_1 0x8400
> +#define DPIO_PCS_TX(pipe) _PIPE(pipe, _DPIO_PCS_TX_0, _DPIO_PCS_TX_1)
> +
> +#define _DPIO_PCS_CLK_0 0x8204
> +#define _DPIO_PCS_CLK_1 0x8404
> +#define DPIO_PCS_CLK(pipe) _PIPE(pipe, _DPIO_PCS_CLK_0, _DPIO_PCS_CLK_1)
> +
> +#define _DPIO_PCS_STAGGER_0 0x8230
> +#define _DPIO_PCS_STAGGER_1 0x8430
> +#define DPIO_PCS_STAGGER(pipe) _PIPE(pipe, _DPIO_PCS_STAGGER_0, \
> + _DPIO_PCS_STAGGER_1)
> +
> +#define _DPIO_TX_CTL_0 0x82ac
> +#define _DPIO_TX_CTL_1 0x84ac
> +#define DPIO_TX_CTL(pipe) _PIPE(pipe, _DPIO_TX_CTL_0, _DPIO_TX_CTL_1)
> +
> +#define _DPIO_TX_LANE_0 0x82b8
> +#define _DPIO_TX_LANE_1 0x84b8
> +#define DPIO_TX_LANE(pipe) _PIPE(pipe, _DPIO_TX_LANE_0, _DPIO_TX_LANE_1)
> +
> +#define _DPIO_DATA_CHANNEL1 0x8220
> +#define _DPIO_DATA_CHANNEL2 0x8420
> +#define DPIO_DATA_CHANNEL(pipe) _PIPE(pipe, _DPIO_DATA_CHANNEL1, _DPIO_DATA_CHANNEL2)
> +
> +#define _DPIO_DATA_LANE0 0x0220
> +#define _DPIO_DATA_LANE1 0x0420
> +#define _DPIO_DATA_LANE2 0x2620
> +#define _DPIO_DATA_LANE3 0x2820
> +#define DPIO_DATA_LANE_A(pipe) _PIPE(pipe, _DPIO_DATA_LANE0, _DPIO_DATA_LANE2)
> +#define DPIO_DATA_LANE_B(pipe) _PIPE(pipe, _DPIO_DATA_LANE1, _DPIO_DATA_LANE3)
> +#define DPIO_DATA_CHANNEL1 0x8220
> +#define DPIO_DATA_CHANNEL2 0x8420
> +
> +#define DPIO_TX_BROADCAST 0xc044
>
> /*
> * Fence registers
> @@ -956,7 +1003,10 @@
> #define DPLL_FPA01_P1_POST_DIV_MASK 0x00ff0000 /* i915 */
> #define DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW 0x00ff8000 /* Pineview */
> #define DPLL_LOCK_VLV (1<<15)
> +#define DPLL_INTEGRATED_CRI_CLK_VLV (1<<14)
> #define DPLL_INTEGRATED_CLOCK_VLV (1<<13)
> +#define DPLL_PORTC_READY_MASK (0xf << 4)
> +#define DPLL_PORTB_READY_MASK (0xf)
>
> #define DPLL_FPA01_P1_POST_DIV_MASK_I830 0x001f0000
> /*
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 794c23e5..cb4ecad 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -3648,6 +3648,56 @@ static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
> */
> }
>
> +static void vlv_pll_enable_reset(struct drm_crtc *crtc)
> +{
> + struct drm_device *dev = crtc->dev;
> + struct drm_i915_private *dev_priv = dev->dev_private;
> + struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> + int pipe = intel_crtc->pipe;
> +
> + WARN_ON(!mutex_is_locked(&dev_priv->dpio_lock));
> +
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) {
> + u32 val;
> + val = intel_dpio_read(dev_priv, _DPIO_DATA_LANE0);
> + if (pipe)
> + val |= (1<<21);
> + val |= (1<<20);
> + intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL1, val);
> +
> + intel_dpio_write(dev_priv, 0x8238, 0x00760018);
> + intel_dpio_write(dev_priv, 0x825c, 0x00400888);
> +
> + intel_dpio_write(dev_priv, 0x8200, 0x10080);
> + intel_dpio_write(dev_priv, 0x8204, 0x00600060);
> +
> + intel_dpio_write(dev_priv, 0x8294, 0x00000000);
> + intel_dpio_write(dev_priv, 0x8290, 0x2b245f5f);
> + intel_dpio_write(dev_priv, 0x8288, 0x5578b83a);
> + intel_dpio_write(dev_priv, 0x828c, 0x0c782040);
> + intel_dpio_write(dev_priv, 0x690, 0x2b247878);
> + intel_dpio_write(dev_priv, 0x822c, 0x00030000);
> + intel_dpio_write(dev_priv, 0x8224, 0x00002000);
> + intel_dpio_write(dev_priv, 0x8294, 0x80000000);
> +
> + }
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> + intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
> + u32 val;
> + val = intel_dpio_read(dev_priv, _DPIO_DATA_LANE2);
> + if (pipe)
> + val |= (1<<21);
> + val |= (1<<20);
> + intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL2, val);
> +
> + intel_dpio_write(dev_priv, 0x8438, 0x00760018);
> + intel_dpio_write(dev_priv, 0x845c, 0x00400888);
> +
> + intel_dpio_write(dev_priv, 0x8400, 0x10080);
> + intel_dpio_write(dev_priv, 0x8404, 0x00600060);
> + }
> +}
> +
> static void i9xx_crtc_enable(struct drm_crtc *crtc)
> {
> struct drm_device *dev = crtc->dev;
> @@ -3656,6 +3706,7 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc)
> struct intel_encoder *encoder;
> int pipe = intel_crtc->pipe;
> int plane = intel_crtc->plane;
> + u32 port_mask;
>
> WARN_ON(!crtc->enabled);
>
> @@ -3667,10 +3718,26 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc)
>
> intel_enable_pll(dev_priv, pipe);
>
> + mutex_lock(&dev_priv->dpio_lock);
> + vlv_pll_enable_reset(crtc);
> + mutex_unlock(&dev_priv->dpio_lock);
Wrap that in IS_VALLEYVIEW?
> +
> for_each_encoder_on_crtc(dev, crtc, encoder)
> if (encoder->pre_enable)
> encoder->pre_enable(encoder);
>
> + for_each_encoder_on_crtc(dev, crtc, encoder)
> + encoder->enable(encoder);
> +
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
> + intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT))
> + port_mask = DPLL_PORTB_READY_MASK;
> + else
> + port_mask = DPLL_PORTC_READY_MASK; /* eDP on port C */
> +
> + if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 100))
> + DRM_ERROR("timed out waiting for port ready\n");
> +
> intel_enable_pipe(dev_priv, pipe, false);
> intel_enable_plane(dev_priv, plane, pipe);
>
> @@ -3680,9 +3747,6 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc)
> /* Give the overlay scaler a chance to enable if it's on this pipe */
> intel_crtc_dpms_overlay(intel_crtc, true);
> intel_crtc_update_cursor(crtc, true);
> -
> - for_each_encoder_on_crtc(dev, crtc, encoder)
> - encoder->enable(encoder);
> }
>
> static void i9xx_crtc_disable(struct drm_crtc *crtc)
> @@ -3720,6 +3784,26 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc)
> ((pctl & PFIT_PIPE_MASK) >> PFIT_PIPE_SHIFT) == pipe)
> I915_WRITE(PFIT_CONTROL, 0);
>
> + for_each_encoder_on_crtc(dev, crtc, encoder)
> + if (encoder->post_disable)
> + encoder->post_disable(encoder);
> +
> + /* Reset lane for VLV platform*/
> + if (IS_VALLEYVIEW(dev)) {
> + mutex_lock(&dev_priv->dpio_lock);
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) {
> + intel_dpio_write(dev_priv, 0x8200, 0x00000000);
> + intel_dpio_write(dev_priv, 0x8204, 0x00e00060);
> + } else {
> + intel_dpio_write(dev_priv, 0x8400, 0x00000000);
> + intel_dpio_write(dev_priv, 0x8404, 0x00e00060);
> + }
> +
> + if (pipe)
> + vlv_init_dpio(dev);
> + mutex_unlock(&dev_priv->dpio_lock);
> + }
> +
> intel_disable_pll(dev_priv, pipe);
>
> intel_crtc->active = false;
> @@ -4272,6 +4356,10 @@ static void i9xx_update_pll_dividers(struct drm_crtc *crtc,
> int pipe = intel_crtc->pipe;
> u32 fp, fp2 = 0;
>
> + /* Disable FP0 register programming for VLV X0 */
> + if (IS_VALLEYVIEW(dev))
> + return;
> +
The function isn't called on vlv, afaics.
Jani.
> if (IS_PINEVIEW(dev)) {
> fp = (1 << clock->n) << 16 | clock->m1 << 8 | clock->m2;
> if (reduced_clock)
> @@ -4296,6 +4384,31 @@ static void i9xx_update_pll_dividers(struct drm_crtc *crtc,
> }
> }
>
> +static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv)
> +{
> + u32 reg_val;
> +
> + /*
> + * PLLB opamp always calibrates to max value of 0x3f, force enable it
> + * and set it to a reasonable value instead.
> + */
> + reg_val = intel_dpio_read(dev_priv, 0x8064);
> + reg_val &= 0xffffff30;
> + intel_dpio_write(dev_priv, 0x8064, reg_val);
> +
> + reg_val = intel_dpio_read(dev_priv, 0x80ac);
> + reg_val &= 0x8cffffff;
> + intel_dpio_write(dev_priv, 0x80ac, reg_val);
> +
> + reg_val = intel_dpio_read(dev_priv, 0x8064);
> + reg_val &= 0xffffff00;
> + intel_dpio_write(dev_priv, 0x8064, reg_val);
> +
> + reg_val = intel_dpio_read(dev_priv, 0x80ac);
> + reg_val &= 0xb0ffffff;
> + intel_dpio_write(dev_priv, 0x80ac, reg_val);
> +}
> +
> static void vlv_update_pll(struct drm_crtc *crtc,
> struct drm_display_mode *mode,
> struct drm_display_mode *adjusted_mode,
> @@ -4306,23 +4419,14 @@ static void vlv_update_pll(struct drm_crtc *crtc,
> struct drm_i915_private *dev_priv = dev->dev_private;
> struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> int pipe = intel_crtc->pipe;
> - u32 dpll, mdiv, pdiv;
> + u32 dpll, mdiv;
> u32 bestn, bestm1, bestm2, bestp1, bestp2;
> - bool is_sdvo;
> - u32 temp;
> + bool is_hdmi;
> + u32 coreclk, reg_val;
>
> mutex_lock(&dev_priv->dpio_lock);
>
> - is_sdvo = intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO) ||
> - intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI);
> -
> - dpll = DPLL_VGA_MODE_DIS;
> - dpll |= DPLL_EXT_BUFFER_ENABLE_VLV;
> - dpll |= DPLL_REFA_CLK_ENABLE_VLV;
> - dpll |= DPLL_INTEGRATED_CLOCK_VLV;
> -
> - I915_WRITE(DPLL(pipe), dpll);
> - POSTING_READ(DPLL(pipe));
> + is_hdmi = intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI);
>
> bestn = clock->n;
> bestm1 = clock->m1;
> @@ -4330,71 +4434,99 @@ static void vlv_update_pll(struct drm_crtc *crtc,
> bestp1 = clock->p1;
> bestp2 = clock->p2;
>
> - /*
> - * In Valleyview PLL and program lane counter registers are exposed
> - * through DPIO interface
> - */
> + /* See eDP HDMI DPIO driver vbios notes doc */
> +
> + /* PLL B needs special handling */
> + if (pipe)
> + vlv_pllb_recal_opamp(dev_priv);
> +
> + /* Set up Tx target for periodic Rcomp update */
> + intel_dpio_write(dev_priv, 0xc044, 0x0100000f);
> +
> + /* Disable target IRef on PLL */
> + reg_val = intel_dpio_read(dev_priv, DPIO_IREF_CTL(pipe));
> + reg_val &= 0x00ffffff;
> + intel_dpio_write(dev_priv, DPIO_IREF_CTL(pipe), reg_val);
> +
> + intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x610);
> +
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> + intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
> + if (adjusted_mode->clock == 162000)
> + intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
> + 0x009f0003);
> + else
> + intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
> + 0x00d0000f);
> +
> + } else
> + intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe),
> + 0x009f0003);
> +
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> + intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
> + if (!pipe)
> + intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
> + 0x0df40000);
> + else
> + intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
> + 0x0df70000);
> + } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) {
> + if (!pipe)
> + intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
> + 0x0df70000);
> + else
> + intel_dpio_write(dev_priv, DPIO_REFSFR(pipe),
> + 0x0df40000);
> + }
> +
> mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
> mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
> mdiv |= ((bestn << DPIO_N_SHIFT));
> mdiv |= (1 << DPIO_POST_DIV_SHIFT);
> mdiv |= (1 << DPIO_K_SHIFT);
> + intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
> +
> mdiv |= DPIO_ENABLE_CALIBRATION;
> intel_dpio_write(dev_priv, DPIO_DIV(pipe), mdiv);
>
> - intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), 0x01000000);
> + coreclk = intel_dpio_read(dev_priv, DPIO_CORE_CLK(pipe));
> + coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
> + intel_dpio_write(dev_priv, DPIO_CORE_CLK(pipe), coreclk);
>
> - pdiv = (1 << DPIO_REFSEL_OVERRIDE) | (5 << DPIO_PLL_MODESEL_SHIFT) |
> - (3 << DPIO_BIAS_CURRENT_CTL_SHIFT) | (1<<20) |
> - (7 << DPIO_PLL_REFCLK_SEL_SHIFT) | (8 << DPIO_DRIVER_CTL_SHIFT) |
> - (5 << DPIO_CLK_BIAS_CTL_SHIFT);
> - intel_dpio_write(dev_priv, DPIO_REFSFR(pipe), pdiv);
> + intel_dpio_write(dev_priv, DPIO_PLL_CML(pipe), 0x87871000);
>
> - intel_dpio_write(dev_priv, DPIO_LFP_COEFF(pipe), 0x005f003b);
> + /* Enable DPIO clock input */
> + dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
> + DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
> + if (pipe)
> + dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
>
> dpll |= DPLL_VCO_ENABLE;
> I915_WRITE(DPLL(pipe), dpll);
> POSTING_READ(DPLL(pipe));
> + udelay(150);
> +
> if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
> DRM_ERROR("DPLL %d failed to lock\n", pipe);
>
> - intel_dpio_write(dev_priv, DPIO_FASTCLK_DISABLE, 0x620);
> + if (is_hdmi) {
> + u32 temp = intel_mode_get_pixel_multiplier(adjusted_mode);
>
> - if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT))
> - intel_dp_set_m_n(crtc, mode, adjusted_mode);
> -
> - I915_WRITE(DPLL(pipe), dpll);
> -
> - /* Wait for the clocks to stabilize. */
> - POSTING_READ(DPLL(pipe));
> - udelay(150);
> -
> - temp = 0;
> - if (is_sdvo) {
> - temp = intel_mode_get_pixel_multiplier(adjusted_mode);
> if (temp > 1)
> temp = (temp - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
> else
> temp = 0;
> - }
> - I915_WRITE(DPLL_MD(pipe), temp);
> - POSTING_READ(DPLL_MD(pipe));
>
> - /* Now program lane control registers */
> - if(intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)
> - || intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI))
> - {
> - temp = 0x1000C4;
> - if(pipe == 1)
> - temp |= (1 << 21);
> - intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL1, temp);
> + I915_WRITE(DPLL_MD(pipe), temp);
> + POSTING_READ(DPLL_MD(pipe));
> }
> - if(intel_pipe_has_type(crtc,INTEL_OUTPUT_EDP))
> - {
> - temp = 0x1000C4;
> - if(pipe == 1)
> - temp |= (1 << 21);
> - intel_dpio_write(dev_priv, DPIO_DATA_CHANNEL2, temp);
> +
> + vlv_pll_enable_reset(crtc);
> +
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> + intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
> + intel_dp_set_m_n(crtc, mode, adjusted_mode);
> }
>
> mutex_unlock(&dev_priv->dpio_lock);
> @@ -4710,11 +4842,12 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
> i8xx_update_pll(crtc, adjusted_mode, &clock,
> has_reduced_clock ? &reduced_clock : NULL,
> num_connectors);
> - else if (IS_VALLEYVIEW(dev))
> + else if (IS_VALLEYVIEW(dev)) {
> + refclk = i9xx_get_refclk(crtc, num_connectors);
> vlv_update_pll(crtc, mode, adjusted_mode, &clock,
> has_reduced_clock ? &reduced_clock : NULL,
> num_connectors);
> - else
> + } else
> i9xx_update_pll(crtc, mode, adjusted_mode, &clock,
> has_reduced_clock ? &reduced_clock : NULL,
> num_connectors);
> @@ -4805,6 +4938,17 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
>
> intel_update_watermarks(dev);
>
> + /* Wait for Phy status bits to go low */
> + for_each_encoder_on_crtc(dev, crtc, encoder) {
> + if (encoder->type == INTEL_OUTPUT_DISPLAYPORT) {
> + if (wait_for(((I915_READ(DPLL(0)) & 0xF0) == 0), 2000))
> + DRM_ERROR("port c phyready timeout\n");
> + } else if (encoder->type == INTEL_OUTPUT_HDMI) {
> + if (wait_for(((I915_READ(DPLL(0)) & 0x0F) == 0), 2000))
> + DRM_ERROR("port b phyready timeout\n");
> + }
> + }
> +
> return ret;
> }
>
> @@ -8410,7 +8554,6 @@ static void intel_setup_outputs(struct drm_device *dev)
>
> if (I915_READ(VLV_DISPLAY_BASE + SDVOC) & PORT_DETECTED)
> intel_hdmi_init(dev, VLV_DISPLAY_BASE + SDVOC, PORT_C);
> -
> } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
> bool found = false;
>
> @@ -9261,9 +9404,6 @@ void intel_modeset_cleanup(struct drm_device *dev)
>
> ironlake_teardown_rc6(dev);
>
> - if (IS_VALLEYVIEW(dev))
> - vlv_init_dpio(dev);
> -
> mutex_unlock(&dev->struct_mutex);
>
> /* Disable the irq before mode object teardown, for the irq might
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 0e2750c..2903380 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -1388,10 +1388,12 @@ static void intel_disable_dp(struct intel_encoder *encoder)
> static void intel_post_disable_dp(struct intel_encoder *encoder)
> {
> struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
> + struct drm_device *dev = encoder->base.dev;
>
> if (is_cpu_edp(intel_dp)) {
> intel_dp_link_down(intel_dp);
> - ironlake_edp_pll_off(intel_dp);
> + if (!IS_VALLEYVIEW(dev))
> + ironlake_edp_pll_off(intel_dp);
> }
> }
>
> @@ -1417,8 +1419,9 @@ static void intel_enable_dp(struct intel_encoder *encoder)
> static void intel_pre_enable_dp(struct intel_encoder *encoder)
> {
> struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
> + struct drm_device *dev = encoder->base.dev;
>
> - if (is_cpu_edp(intel_dp))
> + if (is_cpu_edp(intel_dp) && !IS_VALLEYVIEW(dev))
> ironlake_edp_pll_on(intel_dp);
> }
>
> @@ -2760,6 +2763,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
> if (IS_VALLEYVIEW(dev) && port == PORT_C) {
> type = DRM_MODE_CONNECTOR_eDP;
> intel_encoder->type = INTEL_OUTPUT_EDP;
> + intel_dp->is_pch_edp = true;
> } else if (port == PORT_A || is_pch_edp(intel_dp)) {
> type = DRM_MODE_CONNECTOR_eDP;
> intel_encoder->type = INTEL_OUTPUT_EDP;
> --
> 1.7.9.5
>
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