diff options
Diffstat (limited to 'drivers/gpu/drm/i915/dvo_ivch.c')
| -rw-r--r-- | drivers/gpu/drm/i915/dvo_ivch.c | 61 |
1 files changed, 38 insertions, 23 deletions
diff --git a/drivers/gpu/drm/i915/dvo_ivch.c b/drivers/gpu/drm/i915/dvo_ivch.c index a12ed9414cc..0f2587ff347 100644 --- a/drivers/gpu/drm/i915/dvo_ivch.c +++ b/drivers/gpu/drm/i915/dvo_ivch.c @@ -195,7 +195,7 @@ static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data) if (i2c_transfer(adapter, msgs, 3) == 3) { *data = (in_buf[1] << 8) | in_buf[0]; return true; - }; + } if (!priv->quiet) { DRM_DEBUG_KMS("Unable to read register 0x%02x from " @@ -288,7 +288,7 @@ static enum drm_mode_status ivch_mode_valid(struct intel_dvo_device *dvo, } /** Sets the power state of the panel connected to the ivch */ -static void ivch_dpms(struct intel_dvo_device *dvo, int mode) +static void ivch_dpms(struct intel_dvo_device *dvo, bool enable) { int i; uint16_t vr01, vr30, backlight; @@ -297,13 +297,13 @@ static void ivch_dpms(struct intel_dvo_device *dvo, int mode) if (!ivch_read(dvo, VR01, &vr01)) return; - if (mode == DRM_MODE_DPMS_ON) + if (enable) backlight = 1; else backlight = 0; ivch_write(dvo, VR80, backlight); - if (mode == DRM_MODE_DPMS_ON) + if (enable) vr01 |= VR01_LCD_ENABLE | VR01_DVO_ENABLE; else vr01 &= ~(VR01_LCD_ENABLE | VR01_DVO_ENABLE); @@ -315,7 +315,7 @@ static void ivch_dpms(struct intel_dvo_device *dvo, int mode) if (!ivch_read(dvo, VR30, &vr30)) break; - if (((vr30 & VR30_PANEL_ON) != 0) == (mode == DRM_MODE_DPMS_ON)) + if (((vr30 & VR30_PANEL_ON) != 0) == enable) break; udelay(1000); } @@ -323,6 +323,20 @@ static void ivch_dpms(struct intel_dvo_device *dvo, int mode) udelay(16 * 1000); } +static bool ivch_get_hw_state(struct intel_dvo_device *dvo) +{ + uint16_t vr01; + + /* Set the new power state of the panel. */ + if (!ivch_read(dvo, VR01, &vr01)) + return false; + + if (vr01 & VR01_LCD_ENABLE) + return true; + else + return false; +} + static void ivch_mode_set(struct intel_dvo_device *dvo, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) @@ -344,8 +358,8 @@ static void ivch_mode_set(struct intel_dvo_device *dvo, (adjusted_mode->hdisplay - 1)) >> 2; y_ratio = (((mode->vdisplay - 1) << 16) / (adjusted_mode->vdisplay - 1)) >> 2; - ivch_write (dvo, VR42, x_ratio); - ivch_write (dvo, VR41, y_ratio); + ivch_write(dvo, VR42, x_ratio); + ivch_write(dvo, VR41, y_ratio); } else { vr01 &= ~VR01_PANEL_FIT_ENABLE; vr40 &= ~VR40_CLOCK_GATING_ENABLE; @@ -363,41 +377,41 @@ static void ivch_dump_regs(struct intel_dvo_device *dvo) uint16_t val; ivch_read(dvo, VR00, &val); - DRM_LOG_KMS("VR00: 0x%04x\n", val); + DRM_DEBUG_KMS("VR00: 0x%04x\n", val); ivch_read(dvo, VR01, &val); - DRM_LOG_KMS("VR01: 0x%04x\n", val); + DRM_DEBUG_KMS("VR01: 0x%04x\n", val); ivch_read(dvo, VR30, &val); - DRM_LOG_KMS("VR30: 0x%04x\n", val); + DRM_DEBUG_KMS("VR30: 0x%04x\n", val); ivch_read(dvo, VR40, &val); - DRM_LOG_KMS("VR40: 0x%04x\n", val); + DRM_DEBUG_KMS("VR40: 0x%04x\n", val); /* GPIO registers */ ivch_read(dvo, VR80, &val); - DRM_LOG_KMS("VR80: 0x%04x\n", val); + DRM_DEBUG_KMS("VR80: 0x%04x\n", val); ivch_read(dvo, VR81, &val); - DRM_LOG_KMS("VR81: 0x%04x\n", val); + DRM_DEBUG_KMS("VR81: 0x%04x\n", val); ivch_read(dvo, VR82, &val); - DRM_LOG_KMS("VR82: 0x%04x\n", val); + DRM_DEBUG_KMS("VR82: 0x%04x\n", val); ivch_read(dvo, VR83, &val); - DRM_LOG_KMS("VR83: 0x%04x\n", val); + DRM_DEBUG_KMS("VR83: 0x%04x\n", val); ivch_read(dvo, VR84, &val); - DRM_LOG_KMS("VR84: 0x%04x\n", val); + DRM_DEBUG_KMS("VR84: 0x%04x\n", val); ivch_read(dvo, VR85, &val); - DRM_LOG_KMS("VR85: 0x%04x\n", val); + DRM_DEBUG_KMS("VR85: 0x%04x\n", val); ivch_read(dvo, VR86, &val); - DRM_LOG_KMS("VR86: 0x%04x\n", val); + DRM_DEBUG_KMS("VR86: 0x%04x\n", val); ivch_read(dvo, VR87, &val); - DRM_LOG_KMS("VR87: 0x%04x\n", val); + DRM_DEBUG_KMS("VR87: 0x%04x\n", val); ivch_read(dvo, VR88, &val); - DRM_LOG_KMS("VR88: 0x%04x\n", val); + DRM_DEBUG_KMS("VR88: 0x%04x\n", val); /* Scratch register 0 - AIM Panel type */ ivch_read(dvo, VR8E, &val); - DRM_LOG_KMS("VR8E: 0x%04x\n", val); + DRM_DEBUG_KMS("VR8E: 0x%04x\n", val); /* Scratch register 1 - Status register */ ivch_read(dvo, VR8F, &val); - DRM_LOG_KMS("VR8F: 0x%04x\n", val); + DRM_DEBUG_KMS("VR8F: 0x%04x\n", val); } static void ivch_destroy(struct intel_dvo_device *dvo) @@ -410,9 +424,10 @@ static void ivch_destroy(struct intel_dvo_device *dvo) } } -struct intel_dvo_dev_ops ivch_ops= { +struct intel_dvo_dev_ops ivch_ops = { .init = ivch_init, .dpms = ivch_dpms, + .get_hw_state = ivch_get_hw_state, .mode_valid = ivch_mode_valid, .mode_set = ivch_mode_set, .detect = ivch_detect, |