From 593e0622f4e415351f0a5148aaf0ce5abf667c05 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 23 Jan 2015 15:30:56 +0200 Subject: [PATCH] drm/i915/dsi: switch to drm_panel interface Replace intel_dsi_device and intel_dsi_dev_ops with drm_panel and drm_panel_funcs. They are adequate for what we have now, and if we end up needing more than this we should improve drm_panel. This will keep us better aligned with the drm core infrastructure. The panel driver initialization changes a bit. It still remains hideous, but fixing that is beyond the scope here. v2: extend mode config mutex to cover drm_panel_get_modes (Shobhit) vbt_panel->intel_dsi = intel_dsi in vbt panel init (Shobhit) Signed-off-by: Jani Nikula Reviewed-By: Shobhit Kumar Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/Kconfig | 1 + drivers/gpu/drm/i915/intel_dsi.c | 68 +++++++---- drivers/gpu/drm/i915/intel_dsi.h | 27 +---- drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 180 ++++++++++++++++++----------- 4 files changed, 157 insertions(+), 119 deletions(-) diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index 4e39ab3..da196cd 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -11,6 +11,7 @@ config DRM_I915 select SHMEM select TMPFS select DRM_KMS_HELPER + select DRM_PANEL # i915 depends on ACPI_VIDEO when ACPI is enabled # but for select to work, need to select ACPI_VIDEO's dependencies, ick select BACKLIGHT_LCD_SUPPORT if ACPI diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 317e633..1e151e0 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -28,18 +28,20 @@ #include #include #include +#include #include #include "i915_drv.h" #include "intel_drv.h" #include "intel_dsi.h" #include "intel_dsi_cmd.h" -/* the sub-encoders aka panel drivers */ -static const struct intel_dsi_device intel_dsi_devices[] = { +static const struct { + u16 panel_id; + struct drm_panel * (*init)(struct intel_dsi *intel_dsi, u16 panel_id); +} intel_dsi_drivers[] = { { .panel_id = MIPI_DSI_GENERIC_PANEL_ID, - .name = "vbt-generic-dsi-vid-mode-display", - .dev_ops = &vbt_generic_dsi_display_ops, + .init = vbt_panel_init, }, }; @@ -215,8 +217,7 @@ static void intel_dsi_enable(struct intel_encoder *encoder) dpi_send_cmd(intel_dsi, TURN_ON, DPI_LP_MODE_EN, port); msleep(100); - if (intel_dsi->dev.dev_ops->enable) - intel_dsi->dev.dev_ops->enable(&intel_dsi->dev); + drm_panel_enable(intel_dsi->panel); for_each_dsi_port(port, intel_dsi->ports) wait_for_dsi_fifo_empty(intel_dsi, port); @@ -256,8 +257,7 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder) msleep(intel_dsi->panel_on_delay); - if (intel_dsi->dev.dev_ops->panel_reset) - intel_dsi->dev.dev_ops->panel_reset(&intel_dsi->dev); + drm_panel_prepare(intel_dsi->panel); for_each_dsi_port(port, intel_dsi->ports) wait_for_dsi_fifo_empty(intel_dsi, port); @@ -330,8 +330,7 @@ static void intel_dsi_disable(struct intel_encoder *encoder) } /* if disable packets are sent before sending shutdown packet then in * some next enable sequence send turn on packet error is observed */ - if (intel_dsi->dev.dev_ops->disable) - intel_dsi->dev.dev_ops->disable(&intel_dsi->dev); + drm_panel_disable(intel_dsi->panel); for_each_dsi_port(port, intel_dsi->ports) wait_for_dsi_fifo_empty(intel_dsi, port); @@ -396,8 +395,7 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder) val &= ~DPOUNIT_CLOCK_GATE_DISABLE; I915_WRITE(DSPCLK_GATE_D, val); - if (intel_dsi->dev.dev_ops->disable_panel_power) - intel_dsi->dev.dev_ops->disable_panel_power(&intel_dsi->dev); + drm_panel_unprepare(intel_dsi->panel); msleep(intel_dsi->panel_off_delay); msleep(intel_dsi->panel_pwr_cycle_delay); @@ -761,7 +759,7 @@ static int intel_dsi_get_modes(struct drm_connector *connector) return 1; } -static void intel_dsi_destroy(struct drm_connector *connector) +static void intel_dsi_connector_destroy(struct drm_connector *connector) { struct intel_connector *intel_connector = to_intel_connector(connector); @@ -771,8 +769,20 @@ static void intel_dsi_destroy(struct drm_connector *connector) kfree(connector); } +static void intel_dsi_encoder_destroy(struct drm_encoder *encoder) +{ + struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); + + if (intel_dsi->panel) { + drm_panel_detach(intel_dsi->panel); + /* XXX: Logically this call belongs in the panel driver. */ + drm_panel_remove(intel_dsi->panel); + } + intel_encoder_destroy(encoder); +} + static const struct drm_encoder_funcs intel_dsi_funcs = { - .destroy = intel_encoder_destroy, + .destroy = intel_dsi_encoder_destroy, }; static const struct drm_connector_helper_funcs intel_dsi_connector_helper_funcs = { @@ -784,7 +794,7 @@ static const struct drm_connector_helper_funcs intel_dsi_connector_helper_funcs static const struct drm_connector_funcs intel_dsi_connector_funcs = { .dpms = intel_connector_dpms, .detect = intel_dsi_detect, - .destroy = intel_dsi_destroy, + .destroy = intel_dsi_connector_destroy, .fill_modes = drm_helper_probe_single_connector_modes, .atomic_get_property = intel_connector_atomic_get_property, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, @@ -797,9 +807,8 @@ void intel_dsi_init(struct drm_device *dev) struct drm_encoder *encoder; struct intel_connector *intel_connector; struct drm_connector *connector; - struct drm_display_mode *fixed_mode = NULL; + struct drm_display_mode *scan, *fixed_mode = NULL; struct drm_i915_private *dev_priv = dev->dev_private; - const struct intel_dsi_device *dsi; unsigned int i; DRM_DEBUG_KMS("\n"); @@ -856,15 +865,14 @@ void intel_dsi_init(struct drm_device *dev) intel_dsi->ports = (1 << PORT_C); } - for (i = 0; i < ARRAY_SIZE(intel_dsi_devices); i++) { - dsi = &intel_dsi_devices[i]; - intel_dsi->dev = *dsi; - - if (dsi->dev_ops->init(&intel_dsi->dev)) + for (i = 0; i < ARRAY_SIZE(intel_dsi_drivers); i++) { + intel_dsi->panel = intel_dsi_drivers[i].init(intel_dsi, + intel_dsi_drivers[i].panel_id); + if (intel_dsi->panel) break; } - if (i == ARRAY_SIZE(intel_dsi_devices)) { + if (!intel_dsi->panel) { DRM_DEBUG_KMS("no device found\n"); goto err; } @@ -884,13 +892,23 @@ void intel_dsi_init(struct drm_device *dev) drm_connector_register(connector); - fixed_mode = dsi->dev_ops->get_modes(&intel_dsi->dev); + drm_panel_attach(intel_dsi->panel, connector); + + mutex_lock(&dev->mode_config.mutex); + drm_panel_get_modes(intel_dsi->panel); + list_for_each_entry(scan, &connector->probed_modes, head) { + if ((scan->type & DRM_MODE_TYPE_PREFERRED)) { + fixed_mode = drm_mode_duplicate(dev, scan); + break; + } + } + mutex_unlock(&dev->mode_config.mutex); + if (!fixed_mode) { DRM_DEBUG_KMS("no fixed mode\n"); goto err; } - fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; intel_panel_init(&intel_connector->panel, fixed_mode, NULL); return; diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h index 22f8703..fc0b2b8 100644 --- a/drivers/gpu/drm/i915/intel_dsi.h +++ b/drivers/gpu/drm/i915/intel_dsi.h @@ -33,33 +33,10 @@ #define DSI_DUAL_LINK_FRONT_BACK 1 #define DSI_DUAL_LINK_PIXEL_ALT 2 -struct intel_dsi_device { - unsigned int panel_id; - const char *name; - const struct intel_dsi_dev_ops *dev_ops; - void *dev_priv; -}; - -struct intel_dsi_dev_ops { - bool (*init)(struct intel_dsi_device *dsi); - - void (*panel_reset)(struct intel_dsi_device *dsi); - - void (*disable_panel_power)(struct intel_dsi_device *dsi); - - /* This callback must be able to assume DSI commands can be sent */ - void (*enable)(struct intel_dsi_device *dsi); - - /* This callback must be able to assume DSI commands can be sent */ - void (*disable)(struct intel_dsi_device *dsi); - - struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi); -}; - struct intel_dsi { struct intel_encoder base; - struct intel_dsi_device dev; + struct drm_panel *panel; struct intel_connector *attached_connector; @@ -130,6 +107,6 @@ extern void vlv_enable_dsi_pll(struct intel_encoder *encoder); extern void vlv_disable_dsi_pll(struct intel_encoder *encoder); extern u32 vlv_get_dsi_pclk(struct intel_encoder *encoder, int pipe_bpp); -extern struct intel_dsi_dev_ops vbt_generic_dsi_display_ops; +struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id); #endif /* _INTEL_DSI_H */ diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c index 561ec29..ac7a24d 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 #include #include +#include #include #include