diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_fdi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fdi.c | 141 |
1 files changed, 40 insertions, 101 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fdi.c b/drivers/gpu/drm/i915/display/intel_fdi.c index dd2cf0c59921..3d6e22923601 100644 --- a/drivers/gpu/drm/i915/display/intel_fdi.c +++ b/drivers/gpu/drm/i915/display/intel_fdi.c @@ -4,11 +4,11 @@ */ #include "intel_atomic.h" +#include "intel_crtc.h" #include "intel_ddi.h" #include "intel_de.h" #include "intel_display_types.h" #include "intel_fdi.h" -#include "intel_sbi.h" static void assert_fdi_tx(struct drm_i915_private *dev_priv, enum pipe pipe, bool state) @@ -158,7 +158,7 @@ static int ilk_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, if (pipe_config->fdi_lanes <= 2) return 0; - other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_C); + other_crtc = intel_crtc_for_pipe(dev_priv, PIPE_C); other_crtc_state = intel_atomic_get_crtc_state(state, other_crtc); if (IS_ERR(other_crtc_state)) @@ -179,7 +179,7 @@ static int ilk_check_fdi_lanes(struct drm_device *dev, enum pipe pipe, return -EINVAL; } - other_crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_B); + other_crtc = intel_crtc_for_pipe(dev_priv, PIPE_B); other_crtc_state = intel_atomic_get_crtc_state(state, other_crtc); if (IS_ERR(other_crtc_state)) @@ -887,6 +887,43 @@ void hsw_fdi_link_train(struct intel_encoder *encoder, DP_TP_CTL_ENABLE); } +void hsw_fdi_disable(struct intel_encoder *encoder) +{ + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + u32 val; + + /* + * Bspec lists this as both step 13 (before DDI_BUF_CTL disable) + * and step 18 (after clearing PORT_CLK_SEL). Based on a BUN, + * step 13 is the correct place for it. Step 18 is where it was + * originally before the BUN. + */ + val = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A)); + val &= ~FDI_RX_ENABLE; + intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), val); + + val = intel_de_read(dev_priv, DDI_BUF_CTL(PORT_E)); + val &= ~DDI_BUF_CTL_ENABLE; + intel_de_write(dev_priv, DDI_BUF_CTL(PORT_E), val); + + intel_wait_ddi_buf_idle(dev_priv, PORT_E); + + intel_ddi_disable_clock(encoder); + + val = intel_de_read(dev_priv, FDI_RX_MISC(PIPE_A)); + val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); + val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); + intel_de_write(dev_priv, FDI_RX_MISC(PIPE_A), val); + + val = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A)); + val &= ~FDI_PCDCLK; + intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), val); + + val = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A)); + val &= ~FDI_RX_PLL_ENABLE; + intel_de_write(dev_priv, FDI_RX_CTL(PIPE_A), val); +} + void ilk_fdi_pll_enable(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); @@ -1006,104 +1043,6 @@ void ilk_fdi_disable(struct intel_crtc *crtc) udelay(100); } -static void lpt_fdi_reset_mphy(struct drm_i915_private *dev_priv) -{ - u32 tmp; - - tmp = intel_de_read(dev_priv, SOUTH_CHICKEN2); - tmp |= FDI_MPHY_IOSFSB_RESET_CTL; - intel_de_write(dev_priv, SOUTH_CHICKEN2, tmp); - - if (wait_for_us(intel_de_read(dev_priv, SOUTH_CHICKEN2) & - FDI_MPHY_IOSFSB_RESET_STATUS, 100)) - drm_err(&dev_priv->drm, "FDI mPHY reset assert timeout\n"); - - tmp = intel_de_read(dev_priv, SOUTH_CHICKEN2); - tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL; - intel_de_write(dev_priv, SOUTH_CHICKEN2, tmp); - - if (wait_for_us((intel_de_read(dev_priv, SOUTH_CHICKEN2) & - FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100)) - drm_err(&dev_priv->drm, "FDI mPHY reset de-assert timeout\n"); -} - -/* WaMPhyProgramming:hsw */ -void lpt_fdi_program_mphy(struct drm_i915_private *dev_priv) -{ - u32 tmp; - - lpt_fdi_reset_mphy(dev_priv); - - tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY); - tmp &= ~(0xFF << 24); - tmp |= (0x12 << 24); - intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY); - tmp |= (1 << 11); - intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY); - tmp |= (1 << 11); - intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY); - tmp |= (1 << 24) | (1 << 21) | (1 << 18); - intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY); - tmp |= (1 << 24) | (1 << 21) | (1 << 18); - intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY); - tmp &= ~(7 << 13); - tmp |= (5 << 13); - intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY); - tmp &= ~(7 << 13); - tmp |= (5 << 13); - intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY); - tmp &= ~0xFF; - tmp |= 0x1C; - intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY); - tmp &= ~0xFF; - tmp |= 0x1C; - intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY); - tmp &= ~(0xFF << 16); - tmp |= (0x1C << 16); - intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY); - tmp &= ~(0xFF << 16); - tmp |= (0x1C << 16); - intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY); - tmp |= (1 << 27); - intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY); - tmp |= (1 << 27); - intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY); - tmp &= ~(0xF << 28); - tmp |= (4 << 28); - intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY); - - tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY); - tmp &= ~(0xF << 28); - tmp |= (4 << 28); - intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); -} - static const struct intel_fdi_funcs ilk_funcs = { .fdi_link_train = ilk_fdi_link_train, }; |