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drm/i915: Pass down brightness values to enable/disable backlight callbacks 

Instead of using intel_panel->backlight.level, have the caller provide us
with the current panel backlight value. We'll need this for when we
separate PWM-related backlight callbacks from other means of backlight
control (like DPCD backlight controls), as the caller of each PWM callback
will be responsible for converting the current brightness value to it's
respective PWM level.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201204223603.249878-4-lyude@redhat.com
This commit is contained in:
Lyude Paul 2020-12-04 17:35:57 -05:00 committed by Jani Nikula
parent 390218ca9b
commit 6423cb7f92
4 changed files with 42 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/display/intel_display_types.h
View File

@ -230,9 +230,9 @@ struct intel_panel_bl_funcs {
int (*setup)(struct intel_connector *connector, enum pipe pipe);
u32 (*get)(struct intel_connector *connector);
void (*set)(const struct drm_connector_state *conn_state, u32 level);
void (*disable)(const struct drm_connector_state *conn_state);
void (*disable)(const struct drm_connector_state *conn_state, u32 level);
void (*enable)(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
const struct drm_connector_state *conn_state, u32 level);
u32 (*hz_to_pwm)(struct intel_connector *connector, u32 hz);
};

8
drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
View File

@ -174,7 +174,7 @@ static bool intel_dp_aux_set_pwm_freq(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)
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
struct intel_dp *intel_dp = intel_attached_dp(connector);
@ -225,12 +225,12 @@ static void intel_dp_aux_enable_backlight(const struct intel_crtc_state *crtc_st
}
}
intel_dp_aux_set_backlight(conn_state,
connector->panel.backlight.level);
intel_dp_aux_set_backlight(conn_state, level);
set_aux_backlight_enable(intel_dp, true);
}
static void intel_dp_aux_disable_backlight(const struct drm_connector_state *old_conn_state)
static void intel_dp_aux_disable_backlight(const struct drm_connector_state *old_conn_state,
u32 level)
{
set_aux_backlight_enable(enc_to_intel_dp(to_intel_encoder(old_conn_state->best_encoder)),
false);

7
drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c
View File

@ -77,7 +77,7 @@ static void dcs_set_backlight(const struct drm_connector_state *conn_state, u32
}
}
static void dcs_disable_backlight(const struct drm_connector_state *conn_state)
static void dcs_disable_backlight(const struct drm_connector_state *conn_state, u32 level)
{
struct intel_dsi *intel_dsi = enc_to_intel_dsi(to_intel_encoder(conn_state->best_encoder));
struct mipi_dsi_device *dsi_device;
@ -111,10 +111,9 @@ static void dcs_disable_backlight(const struct drm_connector_state *conn_state)
}
static void dcs_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_dsi *intel_dsi = enc_to_intel_dsi(to_intel_encoder(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 +141,7 @@ static void dcs_enable_backlight(const struct intel_crtc_state *crtc_state,
&cabc, sizeof(cabc));
}
dcs_set_backlight(conn_state, panel->backlight.level);
dcs_set_backlight(conn_state, level);
}
static int dcs_setup_backlight(struct intel_connector *connector,

67
drivers/gpu/drm/i915/display/intel_panel.c
View File

@ -726,13 +726,13 @@ void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state
mutex_unlock(&dev_priv->backlight_lock);
}
static void lpt_disable_backlight(const struct drm_connector_state *old_conn_state)
static void lpt_disable_backlight(const struct drm_connector_state *old_conn_state, u32 level)
{
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(old_conn_state, 0);
intel_panel_actually_set_backlight(old_conn_state, level);
/*
* Although we don't support or enable CPU PWM with LPT/SPT based
@ -754,13 +754,13 @@ static void lpt_disable_backlight(const struct drm_connector_state *old_conn_sta
intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
}
static void pch_disable_backlight(const struct drm_connector_state *old_conn_state)
static void pch_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
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(old_conn_state, 0);
intel_panel_actually_set_backlight(old_conn_state, val);
tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
@ -769,44 +769,44 @@ static void pch_disable_backlight(const struct drm_connector_state *old_conn_sta
intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
}
static void i9xx_disable_backlight(const struct drm_connector_state *old_conn_state)
static void i9xx_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
intel_panel_actually_set_backlight(old_conn_state, 0);
intel_panel_actually_set_backlight(old_conn_state, val);
}
static void i965_disable_backlight(const struct drm_connector_state *old_conn_state)
static void i965_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
struct drm_i915_private *dev_priv = to_i915(old_conn_state->connector->dev);
u32 tmp;
intel_panel_actually_set_backlight(old_conn_state, 0);
intel_panel_actually_set_backlight(old_conn_state, val);
tmp = intel_de_read(dev_priv, BLC_PWM_CTL2);
intel_de_write(dev_priv, BLC_PWM_CTL2, tmp & ~BLM_PWM_ENABLE);
}
static void vlv_disable_backlight(const struct drm_connector_state *old_conn_state)
static void vlv_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
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 = to_intel_crtc(old_conn_state->crtc)->pipe;
u32 tmp;
intel_panel_actually_set_backlight(old_conn_state, 0);
intel_panel_actually_set_backlight(old_conn_state, val);
tmp = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe),
tmp & ~BLM_PWM_ENABLE);
}
static void bxt_disable_backlight(const struct drm_connector_state *old_conn_state)
static void bxt_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
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;
u32 tmp;
intel_panel_actually_set_backlight(old_conn_state, 0);
intel_panel_actually_set_backlight(old_conn_state, val);
tmp = intel_de_read(dev_priv,
BXT_BLC_PWM_CTL(panel->backlight.controller));
@ -820,14 +820,14 @@ static void bxt_disable_backlight(const struct drm_connector_state *old_conn_sta
}
}
static void cnp_disable_backlight(const struct drm_connector_state *old_conn_state)
static void cnp_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
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(old_conn_state, 0);
intel_panel_actually_set_backlight(old_conn_state, val);
tmp = intel_de_read(dev_priv,
BXT_BLC_PWM_CTL(panel->backlight.controller));
@ -835,7 +835,7 @@ static void cnp_disable_backlight(const struct drm_connector_state *old_conn_sta
tmp & ~BXT_BLC_PWM_ENABLE);
}
static void ext_pwm_disable_backlight(const struct drm_connector_state *old_conn_state)
static void ext_pwm_disable_backlight(const struct drm_connector_state *old_conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
struct intel_panel *panel = &connector->panel;
@ -870,13 +870,13 @@ 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.funcs->disable(old_conn_state);
panel->backlight.funcs->disable(old_conn_state, 0);
mutex_unlock(&dev_priv->backlight_lock);
}
static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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);
@ -923,11 +923,11 @@ static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
pch_ctl1 | BLM_PCH_PWM_ENABLE);
/* This won't stick until the above enable. */
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
intel_panel_actually_set_backlight(conn_state, level);
}
static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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);
@ -958,7 +958,7 @@ static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
/* This won't stick until the above enable. */
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
intel_panel_actually_set_backlight(conn_state, level);
pch_ctl2 = panel->backlight.max << 16;
intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, pch_ctl2);
@ -974,7 +974,7 @@ static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
}
static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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);
@ -1001,7 +1001,7 @@ static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_posting_read(dev_priv, BLC_PWM_CTL);
/* XXX: combine this into above write? */
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
intel_panel_actually_set_backlight(conn_state, level);
/*
* Needed to enable backlight on some 855gm models. BLC_HIST_CTL is
@ -1013,7 +1013,7 @@ static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
}
static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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);
@ -1044,11 +1044,11 @@ static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_posting_read(dev_priv, BLC_PWM_CTL2);
intel_de_write(dev_priv, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
intel_panel_actually_set_backlight(conn_state, level);
}
static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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);
@ -1067,7 +1067,7 @@ static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
intel_de_write(dev_priv, VLV_BLC_PWM_CTL(pipe), ctl);
/* XXX: combine this into above write? */
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
intel_panel_actually_set_backlight(conn_state, level);
ctl2 = 0;
if (panel->backlight.active_low_pwm)
@ -1079,7 +1079,7 @@ static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
}
static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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);
@ -1118,7 +1118,7 @@ static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
BXT_BLC_PWM_FREQ(panel->backlight.controller),
panel->backlight.max);
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
intel_panel_actually_set_backlight(conn_state, level);
pwm_ctl = 0;
if (panel->backlight.active_low_pwm)
@ -1133,7 +1133,7 @@ static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
}
static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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);
@ -1154,7 +1154,7 @@ static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
BXT_BLC_PWM_FREQ(panel->backlight.controller),
panel->backlight.max);
intel_panel_actually_set_backlight(conn_state, panel->backlight.level);
intel_panel_actually_set_backlight(conn_state, level);
pwm_ctl = 0;
if (panel->backlight.active_low_pwm)
@ -1169,11 +1169,10 @@ static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
}
static void ext_pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
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;
int level = panel->backlight.level;
level = intel_panel_compute_brightness(connector, level);
pwm_set_relative_duty_cycle(&panel->backlight.pwm_state, level, 100);
@ -1198,7 +1197,7 @@ static void __intel_panel_enable_backlight(const struct intel_crtc_state *crtc_s
panel->backlight.device->props.max_brightness);
}
panel->backlight.funcs->enable(crtc_state, conn_state);
panel->backlight.funcs->enable(crtc_state, conn_state, panel->backlight.level);
panel->backlight.enabled = true;
if (panel->backlight.device)
panel->backlight.device->props.power = FB_BLANK_UNBLANK;