[Intel-gfx] [PATCH 3/3] drm/i915: Pass atomic state to backlight enable/disable/set callbacks.
Ville Syrjälä
ville.syrjala at linux.intel.com
Mon Jun 12 14:31:17 UTC 2017
On Mon, Jun 12, 2017 at 03:48:04PM +0300, Ville Syrjälä wrote:
> On Mon, Jun 12, 2017 at 12:21:15PM +0200, Maarten Lankhorst wrote:
> > Pass crtc_state to the enable callback, and connector_state to all callbacks.
> > This will eliminate the need to guess for the correct pipe in these
> > callbacks.
> >
> > The crtc state is required for pch_enable_backlight to obtain the correct
> > cpu_transcoder.
> >
> > intel_dp_aux_backlight's setup function is called before hw readout, so
> > crtc_state and connector_state->best_encoder are NULL in the enable()
> > and set() callbacks.
>
> This looks like a bug in the code. Massaging the backlight during setup
> doesn't seem like the right thing to do. It should read the current
> state instead of modifying it. So this is something that the relevant
> people should take a look at. Cc:ing some people...
Now really cc:ing!
>
> Anyways, the series looks good to me, so
> Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> >
> > This fixes the following series of warns from intel_get_pipe_from_connector:
> > [ 219.968428] ------------[ cut here ]------------
> > [ 219.968481] WARNING: CPU: 3 PID: 2457 at
> > drivers/gpu/drm/i915/intel_display.c:13881
> > intel_get_pipe_from_connector+0x62/0x90 [i915]
> > [ 219.968483]
> > WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex))
> > [ 219.968485] Modules linked in: nls_iso8859_1 snd_hda_codec_hdmi
> > snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec
> > snd_hda_core snd_hwdep snd_pcm intel_rapl x86_pkg_temp_thermal coretemp
> > kvm_intel snd_seq_midi snd_seq_midi_event kvm snd_rawmidi irqbypass
> > crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc snd_seq
> > snd_seq_device serio_raw snd_timer aesni_intel aes_x86_64 crypto_simd
> > glue_helper cryptd lpc_ich snd mei_me shpchp soundcore mei rfkill_gpio
> > mac_hid intel_pmc_ipc parport_pc ppdev lp parport ip_tables x_tables
> > autofs4 hid_generic usbhid igb ahci i915 xhci_pci dca xhci_hcd ptp
> > sdhci_pci sdhci libahci pps_core i2c_hid hid video
> > [ 219.968573] CPU: 3 PID: 2457 Comm: kworker/u8:3 Tainted: G W
> > 4.10.0-tip-201703010159+ #2
> > [ 219.968575] Hardware name: Intel Corp. Broxton P/NOTEBOOK, BIOS
> > APLKRVPA.X64.0144.B10.1606270006 06/27/2016
> > [ 219.968627] Workqueue: events_unbound intel_atomic_commit_work [i915]
> > [ 219.968629] Call Trace:
> > [ 219.968640] dump_stack+0x63/0x87
> > [ 219.968646] __warn+0xd1/0xf0
> > [ 219.968651] warn_slowpath_fmt+0x4f/0x60
> > [ 219.968657] ? drm_printk+0x97/0xa0
> > [ 219.968708] intel_get_pipe_from_connector+0x62/0x90 [i915]
> > [ 219.968756] intel_panel_enable_backlight+0x19/0xf0 [i915]
> > [ 219.968804] intel_edp_backlight_on.part.22+0x33/0x40 [i915]
> > [ 219.968852] intel_edp_backlight_on+0x18/0x20 [i915]
> > [ 219.968900] intel_enable_ddi+0x94/0xc0 [i915]
> > [ 219.968950] intel_encoders_enable.isra.93+0x77/0x90 [i915]
> > [ 219.969000] haswell_crtc_enable+0x310/0x7f0 [i915]
> > [ 219.969051] intel_update_crtc+0x58/0x100 [i915]
> > [ 219.969101] skl_update_crtcs+0x218/0x240 [i915]
> > [ 219.969153] intel_atomic_commit_tail+0x350/0x1000 [i915]
> > [ 219.969159] ? vtime_account_idle+0xe/0x50
> > [ 219.969164] ? finish_task_switch+0x107/0x250
> > [ 219.969214] intel_atomic_commit_work+0x12/0x20 [i915]
> > [ 219.969219] process_one_work+0x153/0x3f0
> > [ 219.969223] worker_thread+0x12b/0x4b0
> > [ 219.969227] kthread+0x101/0x140
> > [ 219.969230] ? rescuer_thread+0x340/0x340
> > [ 219.969233] ? kthread_park+0x90/0x90
> > [ 219.969237] ? do_syscall_64+0x6e/0x180
> > [ 219.969243] ret_from_fork+0x2c/0x40
> > [ 219.969246] ---[ end trace 0a8fa19387b9ad6d ]---
> >
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100022
> > Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> > ---
> > drivers/gpu/drm/i915/intel_dp_aux_backlight.c | 25 ++--
> > drivers/gpu/drm/i915/intel_drv.h | 7 +-
> > drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c | 22 ++--
> > drivers/gpu/drm/i915/intel_panel.c | 157 +++++++++++++------------
> > 4 files changed, 115 insertions(+), 96 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/intel_dp_aux_backlight.c
> > index a0995c00fc84..6cc62980d0da 100644
> > --- a/drivers/gpu/drm/i915/intel_dp_aux_backlight.c
> > +++ b/drivers/gpu/drm/i915/intel_dp_aux_backlight.c
> > @@ -78,8 +78,13 @@ static uint32_t intel_dp_aux_get_backlight(struct intel_connector *connector)
> > * 8-bit or 16 bit value (MSB and LSB)
> > */
> > static void
> > -intel_dp_aux_set_backlight(struct intel_connector *connector, u32 level)
> > +intel_dp_aux_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > + /*
> > + * conn_state->best_encoder is likely NULL when called from
> > + * intel_dp_aux_setup_backlight()
> > + */
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct intel_dp *intel_dp = enc_to_intel_dp(&connector->encoder->base);
> > uint8_t vals[2] = { 0x0 };
> >
> > @@ -97,8 +102,14 @@ intel_dp_aux_set_backlight(struct intel_connector *connector, u32 level)
> > }
> > }
> >
> > -static void intel_dp_aux_enable_backlight(struct intel_connector *connector)
> > +static void intel_dp_aux_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > + /*
> > + * conn_state->best_encoder (and crtc_state) are NULL when called from
> > + * intel_dp_aux_setup_backlight()
> > + */
> > struct intel_dp *intel_dp = enc_to_intel_dp(&connector->encoder->base);
> > uint8_t dpcd_buf = 0;
> > uint8_t edp_backlight_mode = 0;
> > @@ -131,12 +142,12 @@ static void intel_dp_aux_enable_backlight(struct intel_connector *connector)
> > }
> >
> > set_aux_backlight_enable(intel_dp, true);
> > - intel_dp_aux_set_backlight(connector, connector->panel.backlight.level);
> > + intel_dp_aux_set_backlight(conn_state, connector->panel.backlight.level);
> > }
> >
> > -static void intel_dp_aux_disable_backlight(struct intel_connector *connector)
> > +static void intel_dp_aux_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > - set_aux_backlight_enable(enc_to_intel_dp(&connector->encoder->base), false);
> > + set_aux_backlight_enable(enc_to_intel_dp(old_conn_state->best_encoder), false);
> > }
> >
> > static int intel_dp_aux_setup_backlight(struct intel_connector *connector,
> > @@ -145,7 +156,7 @@ static int intel_dp_aux_setup_backlight(struct intel_connector *connector,
> > struct intel_dp *intel_dp = enc_to_intel_dp(&connector->encoder->base);
> > struct intel_panel *panel = &connector->panel;
> >
> > - intel_dp_aux_enable_backlight(connector);
> > + intel_dp_aux_enable_backlight(NULL, connector->base.state);
> >
> > if (intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_BYTE_COUNT)
> > panel->backlight.max = 0xFFFF;
> > @@ -165,7 +176,7 @@ intel_dp_aux_display_control_capable(struct intel_connector *connector)
> > {
> > struct intel_dp *intel_dp = enc_to_intel_dp(&connector->encoder->base);
> >
> > - /* Check the eDP Display control capabilities registers to determine if
> > + /* Check the eDP Display control capabilities registers to determine if
> > * the panel can support backlight control over the aux channel
> > */
> > if (intel_dp->edp_dpcd[1] & DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP &&
> > diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> > index db2042a75d42..18528a477cf6 100644
> > --- a/drivers/gpu/drm/i915/intel_drv.h
> > +++ b/drivers/gpu/drm/i915/intel_drv.h
> > @@ -288,9 +288,10 @@ struct intel_panel {
> > /* Connector and platform specific backlight functions */
> > int (*setup)(struct intel_connector *connector, enum pipe pipe);
> > uint32_t (*get)(struct intel_connector *connector);
> > - void (*set)(struct intel_connector *connector, uint32_t level);
> > - void (*disable)(struct intel_connector *connector);
> > - void (*enable)(struct intel_connector *connector);
> > + void (*set)(const struct drm_connector_state *conn_state, uint32_t level);
> > + void (*disable)(const struct drm_connector_state *conn_state);
> > + void (*enable)(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state);
> > uint32_t (*hz_to_pwm)(struct intel_connector *connector,
> > uint32_t hz);
> > void (*power)(struct intel_connector *, bool enable);
> > diff --git a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
> > index ac7c6020c443..6e09ceb71500 100644
> > --- a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
> > +++ b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
> > @@ -60,10 +60,9 @@ static u32 dcs_get_backlight(struct intel_connector *connector)
> > return data;
> > }
> >
> > -static void dcs_set_backlight(struct intel_connector *connector, u32 level)
> > +static void dcs_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > - struct intel_encoder *encoder = connector->encoder;
> > - struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
> > + struct intel_dsi *intel_dsi = enc_to_intel_dsi(conn_state->best_encoder);
> > struct mipi_dsi_device *dsi_device;
> > u8 data = level;
> > enum port port;
> > @@ -76,14 +75,13 @@ static void dcs_set_backlight(struct intel_connector *connector, u32 level)
> > }
> > }
> >
> > -static void dcs_disable_backlight(struct intel_connector *connector)
> > +static void dcs_disable_backlight(const struct drm_connector_state *conn_state)
> > {
> > - struct intel_encoder *encoder = connector->encoder;
> > - struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
> > + struct intel_dsi *intel_dsi = enc_to_intel_dsi(conn_state->best_encoder);
> > struct mipi_dsi_device *dsi_device;
> > enum port port;
> >
> > - dcs_set_backlight(connector, 0);
> > + dcs_set_backlight(conn_state, 0);
> >
> > for_each_dsi_port(port, intel_dsi->dcs_cabc_ports) {
> > u8 cabc = POWER_SAVE_OFF;
> > @@ -110,11 +108,11 @@ static void dcs_disable_backlight(struct intel_connector *connector)
> > }
> > }
> >
> > -static void dcs_enable_backlight(struct intel_connector *connector)
> > +static void dcs_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > - struct intel_encoder *encoder = connector->encoder;
> > - struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
> > - struct intel_panel *panel = &connector->panel;
> > + struct intel_dsi *intel_dsi = enc_to_intel_dsi(conn_state->best_encoder);
> > + struct intel_panel *panel = &to_intel_connector(conn_state->connector)->panel;
> > struct mipi_dsi_device *dsi_device;
> > enum port port;
> >
> > @@ -142,7 +140,7 @@ static void dcs_enable_backlight(struct intel_connector *connector)
> > &cabc, sizeof(cabc));
> > }
> >
> > - dcs_set_backlight(connector, panel->backlight.level);
> > + dcs_set_backlight(conn_state, panel->backlight.level);
> > }
> >
> > static int dcs_setup_backlight(struct intel_connector *connector,
> > diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
> > index 8cb573166421..96c2cbd81869 100644
> > --- a/drivers/gpu/drm/i915/intel_panel.c
> > +++ b/drivers/gpu/drm/i915/intel_panel.c
> > @@ -561,15 +561,18 @@ static u32 intel_panel_get_backlight(struct intel_connector *connector)
> > return val;
> > }
> >
> > -static void lpt_set_backlight(struct intel_connector *connector, u32 level)
> > +static void lpt_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > +
> > u32 val = I915_READ(BLC_PWM_PCH_CTL2) & ~BACKLIGHT_DUTY_CYCLE_MASK;
> > I915_WRITE(BLC_PWM_PCH_CTL2, val | level);
> > }
> >
> > -static void pch_set_backlight(struct intel_connector *connector, u32 level)
> > +static void pch_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > u32 tmp;
> >
> > @@ -577,8 +580,9 @@ static void pch_set_backlight(struct intel_connector *connector, u32 level)
> > I915_WRITE(BLC_PWM_CPU_CTL, tmp | level);
> > }
> >
> > -static void i9xx_set_backlight(struct intel_connector *connector, u32 level)
> > +static void i9xx_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > u32 tmp, mask;
> > @@ -604,50 +608,51 @@ static void i9xx_set_backlight(struct intel_connector *connector, u32 level)
> > I915_WRITE(BLC_PWM_CTL, tmp | level);
> > }
> >
> > -static void vlv_set_backlight(struct intel_connector *connector, u32 level)
> > +static void vlv_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > - enum pipe pipe = intel_get_pipe_from_connector(connector);
> > + enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
> > u32 tmp;
> >
> > - if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
> > - return;
> > -
> > tmp = I915_READ(VLV_BLC_PWM_CTL(pipe)) & ~BACKLIGHT_DUTY_CYCLE_MASK;
> > I915_WRITE(VLV_BLC_PWM_CTL(pipe), tmp | level);
> > }
> >
> > -static void bxt_set_backlight(struct intel_connector *connector, u32 level)
> > +static void bxt_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> >
> > I915_WRITE(BXT_BLC_PWM_DUTY(panel->backlight.controller), level);
> > }
> >
> > -static void pwm_set_backlight(struct intel_connector *connector, u32 level)
> > +static void pwm_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > - struct intel_panel *panel = &connector->panel;
> > + struct intel_panel *panel = &to_intel_connector(conn_state->connector)->panel;
> > int duty_ns = DIV_ROUND_UP(level * CRC_PMIC_PWM_PERIOD_NS, 100);
> >
> > pwm_config(panel->backlight.pwm, duty_ns, CRC_PMIC_PWM_PERIOD_NS);
> > }
> >
> > static void
> > -intel_panel_actually_set_backlight(struct intel_connector *connector, u32 level)
> > +intel_panel_actually_set_backlight(const struct drm_connector_state *conn_state, u32 level)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct intel_panel *panel = &connector->panel;
> >
> > DRM_DEBUG_DRIVER("set backlight PWM = %d\n", level);
> >
> > level = intel_panel_compute_brightness(connector, level);
> > - panel->backlight.set(connector, level);
> > + panel->backlight.set(conn_state, level);
> > }
> >
> > /* set backlight brightness to level in range [0..max], scaling wrt hw min */
> > -static void intel_panel_set_backlight(struct intel_connector *connector,
> > +static void intel_panel_set_backlight(const struct drm_connector_state *conn_state,
> > u32 user_level, u32 user_max)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > u32 hw_level;
> > @@ -663,7 +668,7 @@ static void intel_panel_set_backlight(struct intel_connector *connector,
> > panel->backlight.level = hw_level;
> >
> > if (panel->backlight.enabled)
> > - intel_panel_actually_set_backlight(connector, hw_level);
> > + intel_panel_actually_set_backlight(conn_state, hw_level);
> >
> > mutex_unlock(&dev_priv->backlight_lock);
> > }
> > @@ -702,17 +707,18 @@ void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state
> > panel->backlight.device->props.max_brightness);
> >
> > if (panel->backlight.enabled)
> > - intel_panel_actually_set_backlight(connector, hw_level);
> > + intel_panel_actually_set_backlight(conn_state, hw_level);
> >
> > mutex_unlock(&dev_priv->backlight_lock);
> > }
> >
> > -static void lpt_disable_backlight(struct intel_connector *connector)
> > +static void lpt_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > u32 tmp;
> >
> > - intel_panel_actually_set_backlight(connector, 0);
> > + intel_panel_actually_set_backlight(old_conn_state, 0);
> >
> > /*
> > * Although we don't support or enable CPU PWM with LPT/SPT based
> > @@ -732,12 +738,13 @@ static void lpt_disable_backlight(struct intel_connector *connector)
> > I915_WRITE(BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
> > }
> >
> > -static void pch_disable_backlight(struct intel_connector *connector)
> > +static void pch_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > u32 tmp;
> >
> > - intel_panel_actually_set_backlight(connector, 0);
> > + intel_panel_actually_set_backlight(old_conn_state, 0);
> >
> > tmp = I915_READ(BLC_PWM_CPU_CTL2);
> > I915_WRITE(BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
> > @@ -746,44 +753,43 @@ static void pch_disable_backlight(struct intel_connector *connector)
> > I915_WRITE(BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
> > }
> >
> > -static void i9xx_disable_backlight(struct intel_connector *connector)
> > +static void i9xx_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > - intel_panel_actually_set_backlight(connector, 0);
> > + intel_panel_actually_set_backlight(old_conn_state, 0);
> > }
> >
> > -static void i965_disable_backlight(struct intel_connector *connector)
> > +static void i965_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > - struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > + struct drm_i915_private *dev_priv = to_i915(old_conn_state->connector->dev);
> > u32 tmp;
> >
> > - intel_panel_actually_set_backlight(connector, 0);
> > + intel_panel_actually_set_backlight(old_conn_state, 0);
> >
> > tmp = I915_READ(BLC_PWM_CTL2);
> > I915_WRITE(BLC_PWM_CTL2, tmp & ~BLM_PWM_ENABLE);
> > }
> >
> > -static void vlv_disable_backlight(struct intel_connector *connector)
> > +static void vlv_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > - enum pipe pipe = intel_get_pipe_from_connector(connector);
> > + enum pipe pipe = to_intel_crtc(old_conn_state->crtc)->pipe;
> > u32 tmp;
> >
> > - if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
> > - return;
> > -
> > - intel_panel_actually_set_backlight(connector, 0);
> > + intel_panel_actually_set_backlight(old_conn_state, 0);
> >
> > tmp = I915_READ(VLV_BLC_PWM_CTL2(pipe));
> > I915_WRITE(VLV_BLC_PWM_CTL2(pipe), tmp & ~BLM_PWM_ENABLE);
> > }
> >
> > -static void bxt_disable_backlight(struct intel_connector *connector)
> > +static void bxt_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > u32 tmp, val;
> >
> > - intel_panel_actually_set_backlight(connector, 0);
> > + intel_panel_actually_set_backlight(old_conn_state, 0);
> >
> > tmp = I915_READ(BXT_BLC_PWM_CTL(panel->backlight.controller));
> > I915_WRITE(BXT_BLC_PWM_CTL(panel->backlight.controller),
> > @@ -796,21 +802,23 @@ static void bxt_disable_backlight(struct intel_connector *connector)
> > }
> > }
> >
> > -static void cnp_disable_backlight(struct intel_connector *connector)
> > +static void cnp_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > u32 tmp;
> >
> > - intel_panel_actually_set_backlight(connector, 0);
> > + intel_panel_actually_set_backlight(old_conn_state, 0);
> >
> > tmp = I915_READ(BXT_BLC_PWM_CTL(panel->backlight.controller));
> > I915_WRITE(BXT_BLC_PWM_CTL(panel->backlight.controller),
> > tmp & ~BXT_BLC_PWM_ENABLE);
> > }
> >
> > -static void pwm_disable_backlight(struct intel_connector *connector)
> > +static void pwm_disable_backlight(const struct drm_connector_state *old_conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
> > struct intel_panel *panel = &connector->panel;
> >
> > /* Disable the backlight */
> > @@ -844,13 +852,15 @@ void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_st
> > if (panel->backlight.device)
> > panel->backlight.device->props.power = FB_BLANK_POWERDOWN;
> > panel->backlight.enabled = false;
> > - panel->backlight.disable(connector);
> > + panel->backlight.disable(old_conn_state);
> >
> > mutex_unlock(&dev_priv->backlight_lock);
> > }
> >
> > -static void lpt_enable_backlight(struct intel_connector *connector)
> > +static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > u32 pch_ctl1, pch_ctl2, schicken;
> > @@ -894,22 +904,18 @@ static void lpt_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
> >
> > /* This won't stick until the above enable. */
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> > }
> >
> > -static void pch_enable_backlight(struct intel_connector *connector)
> > +static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > - enum pipe pipe = intel_get_pipe_from_connector(connector);
> > - enum transcoder cpu_transcoder;
> > + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
> > u32 cpu_ctl2, pch_ctl1, pch_ctl2;
> >
> > - if (!WARN_ON_ONCE(pipe == INVALID_PIPE))
> > - cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, pipe);
> > - else
> > - cpu_transcoder = TRANSCODER_EDP;
> > -
> > cpu_ctl2 = I915_READ(BLC_PWM_CPU_CTL2);
> > if (cpu_ctl2 & BLM_PWM_ENABLE) {
> > DRM_DEBUG_KMS("cpu backlight already enabled\n");
> > @@ -933,7 +939,7 @@ static void pch_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
> >
> > /* This won't stick until the above enable. */
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> >
> > pch_ctl2 = panel->backlight.max << 16;
> > I915_WRITE(BLC_PWM_PCH_CTL2, pch_ctl2);
> > @@ -947,8 +953,10 @@ static void pch_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
> > }
> >
> > -static void i9xx_enable_backlight(struct intel_connector *connector)
> > +static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > u32 ctl, freq;
> > @@ -973,7 +981,7 @@ static void i9xx_enable_backlight(struct intel_connector *connector)
> > POSTING_READ(BLC_PWM_CTL);
> >
> > /* XXX: combine this into above write? */
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> >
> > /*
> > * Needed to enable backlight on some 855gm models. BLC_HIST_CTL is
> > @@ -984,16 +992,15 @@ static void i9xx_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(BLC_HIST_CTL, BLM_HISTOGRAM_ENABLE);
> > }
> >
> > -static void i965_enable_backlight(struct intel_connector *connector)
> > +static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > - enum pipe pipe = intel_get_pipe_from_connector(connector);
> > + enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
> > u32 ctl, ctl2, freq;
> >
> > - if (WARN_ON_ONCE(pipe == INVALID_PIPE))
> > - pipe = PIPE_A;
> > -
> > ctl2 = I915_READ(BLC_PWM_CTL2);
> > if (ctl2 & BLM_PWM_ENABLE) {
> > DRM_DEBUG_KMS("backlight already enabled\n");
> > @@ -1017,19 +1024,18 @@ static void i965_enable_backlight(struct intel_connector *connector)
> > POSTING_READ(BLC_PWM_CTL2);
> > I915_WRITE(BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
> >
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> > }
> >
> > -static void vlv_enable_backlight(struct intel_connector *connector)
> > +static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > - enum pipe pipe = intel_get_pipe_from_connector(connector);
> > + enum pipe pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
> > u32 ctl, ctl2;
> >
> > - if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
> > - return;
> > -
> > ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe));
> > if (ctl2 & BLM_PWM_ENABLE) {
> > DRM_DEBUG_KMS("backlight already enabled\n");
> > @@ -1041,7 +1047,7 @@ static void vlv_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(VLV_BLC_PWM_CTL(pipe), ctl);
> >
> > /* XXX: combine this into above write? */
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> >
> > ctl2 = 0;
> > if (panel->backlight.active_low_pwm)
> > @@ -1051,16 +1057,15 @@ static void vlv_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);
> > }
> >
> > -static void bxt_enable_backlight(struct intel_connector *connector)
> > +static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > - enum pipe pipe = intel_get_pipe_from_connector(connector);
> > + enum pipe pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
> > u32 pwm_ctl, val;
> >
> > - if (WARN_ON_ONCE(pipe == INVALID_PIPE))
> > - pipe = PIPE_A;
> > -
> > /* Controller 1 uses the utility pin. */
> > if (panel->backlight.controller == 1) {
> > val = I915_READ(UTIL_PIN_CTL);
> > @@ -1088,7 +1093,7 @@ static void bxt_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(BXT_BLC_PWM_FREQ(panel->backlight.controller),
> > panel->backlight.max);
> >
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> >
> > pwm_ctl = 0;
> > if (panel->backlight.active_low_pwm)
> > @@ -1100,8 +1105,10 @@ static void bxt_enable_backlight(struct intel_connector *connector)
> > pwm_ctl | BXT_BLC_PWM_ENABLE);
> > }
> >
> > -static void cnp_enable_backlight(struct intel_connector *connector)
> > +static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
> > struct intel_panel *panel = &connector->panel;
> > u32 pwm_ctl;
> > @@ -1117,7 +1124,7 @@ static void cnp_enable_backlight(struct intel_connector *connector)
> > I915_WRITE(BXT_BLC_PWM_FREQ(panel->backlight.controller),
> > panel->backlight.max);
> >
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> >
> > pwm_ctl = 0;
> > if (panel->backlight.active_low_pwm)
> > @@ -1129,12 +1136,14 @@ static void cnp_enable_backlight(struct intel_connector *connector)
> > pwm_ctl | BXT_BLC_PWM_ENABLE);
> > }
> >
> > -static void pwm_enable_backlight(struct intel_connector *connector)
> > +static void pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
> > + const struct drm_connector_state *conn_state)
> > {
> > + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> > struct intel_panel *panel = &connector->panel;
> >
> > pwm_enable(panel->backlight.pwm);
> > - intel_panel_actually_set_backlight(connector, panel->backlight.level);
> > + intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
> > }
> >
> > void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
> > @@ -1163,7 +1172,7 @@ void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
> > panel->backlight.device->props.max_brightness);
> > }
> >
> > - panel->backlight.enable(connector);
> > + panel->backlight.enable(crtc_state, conn_state);
> > panel->backlight.enabled = true;
> > if (panel->backlight.device)
> > panel->backlight.device->props.power = FB_BLANK_UNBLANK;
> > @@ -1181,7 +1190,7 @@ static int intel_backlight_device_update_status(struct backlight_device *bd)
> > drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
> > DRM_DEBUG_KMS("updating intel_backlight, brightness=%d/%d\n",
> > bd->props.brightness, bd->props.max_brightness);
> > - intel_panel_set_backlight(connector, bd->props.brightness,
> > + intel_panel_set_backlight(connector->base.state, bd->props.brightness,
> > bd->props.max_brightness);
> >
> > /*
> > --
> > 2.11.0
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Ville Syrjälä
> Intel OTC
--
Ville Syrjälä
Intel OTC
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