diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi_panel_vbt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 180 |
1 files changed, 111 insertions, 69 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c index 561ec2981dfd..ac7a24dcf7f7 100644 --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c @@ -28,6 +28,7 @@ #include <drm/drm_crtc.h> #include <drm/drm_edid.h> #include <drm/i915_drm.h> +#include <drm/drm_panel.h> #include <linux/slab.h> #include <video/mipi_display.h> #include <asm/intel-mid.h> @@ -37,6 +38,16 @@ #include "intel_dsi.h" #include "intel_dsi_cmd.h" +struct vbt_panel { + struct drm_panel panel; + struct intel_dsi *intel_dsi; +}; + +static inline struct vbt_panel *to_vbt_panel(struct drm_panel *panel) +{ + return container_of(panel, struct vbt_panel, panel); +} + #define MIPI_TRANSFER_MODE_SHIFT 0 #define MIPI_VIRTUAL_CHANNEL_SHIFT 1 #define MIPI_PORT_SHIFT 3 @@ -272,14 +283,103 @@ static void generic_exec_sequence(struct intel_dsi *intel_dsi, const u8 *data) } } -static bool generic_init(struct intel_dsi_device *dsi) +static int vbt_panel_prepare(struct drm_panel *panel) +{ + struct vbt_panel *vbt_panel = to_vbt_panel(panel); + struct intel_dsi *intel_dsi = vbt_panel->intel_dsi; + struct drm_device *dev = intel_dsi->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + const u8 *sequence; + + sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_ASSERT_RESET]; + generic_exec_sequence(intel_dsi, sequence); + + sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_INIT_OTP]; + generic_exec_sequence(intel_dsi, sequence); + + return 0; +} + +static int vbt_panel_unprepare(struct drm_panel *panel) +{ + struct vbt_panel *vbt_panel = to_vbt_panel(panel); + struct intel_dsi *intel_dsi = vbt_panel->intel_dsi; + struct drm_device *dev = intel_dsi->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + const u8 *sequence; + + sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DEASSERT_RESET]; + generic_exec_sequence(intel_dsi, sequence); + + return 0; +} + +static int vbt_panel_enable(struct drm_panel *panel) +{ + struct vbt_panel *vbt_panel = to_vbt_panel(panel); + struct intel_dsi *intel_dsi = vbt_panel->intel_dsi; + struct drm_device *dev = intel_dsi->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + const u8 *sequence; + + sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DISPLAY_ON]; + generic_exec_sequence(intel_dsi, sequence); + + return 0; +} + +static int vbt_panel_disable(struct drm_panel *panel) +{ + struct vbt_panel *vbt_panel = to_vbt_panel(panel); + struct intel_dsi *intel_dsi = vbt_panel->intel_dsi; + struct drm_device *dev = intel_dsi->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + const u8 *sequence; + + sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DISPLAY_OFF]; + generic_exec_sequence(intel_dsi, sequence); + + return 0; +} + +static int vbt_panel_get_modes(struct drm_panel *panel) +{ + struct vbt_panel *vbt_panel = to_vbt_panel(panel); + struct intel_dsi *intel_dsi = vbt_panel->intel_dsi; + struct drm_device *dev = intel_dsi->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_display_mode *mode; + + if (!panel->connector) + return 0; + + mode = drm_mode_duplicate(dev, dev_priv->vbt.lfp_lvds_vbt_mode); + if (!mode) + return 0; + + mode->type |= DRM_MODE_TYPE_PREFERRED; + + drm_mode_probed_add(panel->connector, mode); + + return 1; +} + +static const struct drm_panel_funcs vbt_panel_funcs = { + .disable = vbt_panel_disable, + .unprepare = vbt_panel_unprepare, + .prepare = vbt_panel_prepare, + .enable = vbt_panel_enable, + .get_modes = vbt_panel_get_modes, +}; + +struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id) { - struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev); struct drm_device *dev = intel_dsi->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; struct mipi_config *mipi_config = dev_priv->vbt.dsi.config; struct mipi_pps_data *pps = dev_priv->vbt.dsi.pps; struct drm_display_mode *mode = dev_priv->vbt.lfp_lvds_vbt_mode; + struct vbt_panel *vbt_panel; u32 bits_per_pixel = 24; u32 tlpx_ns, extra_byte_count, bitrate, tlpx_ui; u32 ui_num, ui_den; @@ -346,7 +446,7 @@ static bool generic_init(struct intel_dsi_device *dsi) if (mipi_config->target_burst_mode_freq < computed_ddr) { DRM_ERROR("Burst mode freq is less than computed\n"); - return false; + return NULL; } burst_mode_ratio = DIV_ROUND_UP( @@ -356,7 +456,7 @@ static bool generic_init(struct intel_dsi_device *dsi) pclk = DIV_ROUND_UP(pclk * burst_mode_ratio, 100); } else { DRM_ERROR("Burst mode target is not set\n"); - return false; + return NULL; } } else burst_mode_ratio = 100; @@ -557,71 +657,13 @@ static bool generic_init(struct intel_dsi_device *dsi) intel_dsi->panel_off_delay = pps->panel_off_delay / 10; intel_dsi->panel_pwr_cycle_delay = pps->panel_power_cycle_delay / 10; - return true; -} - -static void generic_panel_reset(struct intel_dsi_device *dsi) -{ - struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev); - struct drm_device *dev = intel_dsi->base.base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - - char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_ASSERT_RESET]; - - generic_exec_sequence(intel_dsi, sequence); - - sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_INIT_OTP]; - generic_exec_sequence(intel_dsi, sequence); -} - -static void generic_disable_panel_power(struct intel_dsi_device *dsi) -{ - struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev); - struct drm_device *dev = intel_dsi->base.base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - - char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DEASSERT_RESET]; - - generic_exec_sequence(intel_dsi, sequence); -} - -static void generic_enable(struct intel_dsi_device *dsi) -{ - struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev); - struct drm_device *dev = intel_dsi->base.base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; + /* This is cheating a bit with the cleanup. */ + vbt_panel = devm_kzalloc(dev->dev, sizeof(*vbt_panel), GFP_KERNEL); - char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DISPLAY_ON]; + vbt_panel->intel_dsi = intel_dsi; + drm_panel_init(&vbt_panel->panel); + vbt_panel->panel.funcs = &vbt_panel_funcs; + drm_panel_add(&vbt_panel->panel); - generic_exec_sequence(intel_dsi, sequence); + return &vbt_panel->panel; } - -static void generic_disable(struct intel_dsi_device *dsi) -{ - struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev); - struct drm_device *dev = intel_dsi->base.base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - - char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DISPLAY_OFF]; - - generic_exec_sequence(intel_dsi, sequence); -} - -static struct drm_display_mode *generic_get_modes(struct intel_dsi_device *dsi) -{ - struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev); - struct drm_device *dev = intel_dsi->base.base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - - dev_priv->vbt.lfp_lvds_vbt_mode->type |= DRM_MODE_TYPE_PREFERRED; - return dev_priv->vbt.lfp_lvds_vbt_mode; -} - -struct intel_dsi_dev_ops vbt_generic_dsi_display_ops = { - .init = generic_init, - .panel_reset = generic_panel_reset, - .disable_panel_power = generic_disable_panel_power, - .enable = generic_enable, - .disable = generic_disable, - .get_modes = generic_get_modes, -}; 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