[Intel-gfx] [PATCH 10/10] drm/i915: Add privacy-screen support (v3)
Hans de Goede
hdegoede at redhat.com
Thu Nov 4 08:56:42 UTC 2021
Hi,
On 11/4/21 00:16, Rajat Jain wrote:
> Hello Hans,
>
> Thanks a lot for working on this diligently and getting almost all of
> it finally merged!
>
> On Wed, Oct 13, 2021 at 2:59 PM Ville Syrjälä
> <ville.syrjala at linux.intel.com> wrote:
>>
>> On Tue, Oct 05, 2021 at 10:23:22PM +0200, Hans de Goede wrote:
>>> Add support for eDP panels with a built-in privacy screen using the
>>> new drm_privacy_screen class.
>>>
>>> Changes in v3:
>>> - Move drm_privacy_screen_get() call to intel_ddi_init_dp_connector()
>>>
>>> Changes in v2:
>>> - Call drm_connector_update_privacy_screen() from
>>> intel_enable_ddi_dp() / intel_ddi_update_pipe_dp() instead of adding a
>>> for_each_new_connector_in_state() loop to intel_atomic_commit_tail()
>>> - Move the probe-deferral check to the intel_modeset_probe_defer() helper
>>>
>>> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
>>> ---
>>> drivers/gpu/drm/i915/display/intel_atomic.c | 1 +
>>> drivers/gpu/drm/i915/display/intel_ddi.c | 16 ++++++++++++++++
>>> drivers/gpu/drm/i915/display/intel_display.c | 10 ++++++++++
>>> 3 files changed, 27 insertions(+)
>>>
>>> diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
>>> index b4e7ac51aa31..a62550711e98 100644
>>> --- a/drivers/gpu/drm/i915/display/intel_atomic.c
>>> +++ b/drivers/gpu/drm/i915/display/intel_atomic.c
>>> @@ -139,6 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
>>> new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
>>> new_conn_state->base.content_type != old_conn_state->base.content_type ||
>>> new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
>>> + new_conn_state->base.privacy_screen_sw_state != old_conn_state->base.privacy_screen_sw_state ||
>>> !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
>>> crtc_state->mode_changed = true;
>>>
>>> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
>>> index 0d4cf7fa8720..272714e07cc6 100644
>>> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
>>> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
>>> @@ -25,6 +25,7 @@
>>> *
>>> */
>>>
>>> +#include <drm/drm_privacy_screen_consumer.h>
>>> #include <drm/drm_scdc_helper.h>
>>>
>>> #include "i915_drv.h"
>>> @@ -2946,6 +2947,7 @@ static void intel_enable_ddi_dp(struct intel_atomic_state *state,
>>> if (port == PORT_A && DISPLAY_VER(dev_priv) < 9)
>>> intel_dp_stop_link_train(intel_dp, crtc_state);
>>>
>>> + drm_connector_update_privacy_screen(conn_state);
>>> intel_edp_backlight_on(crtc_state, conn_state);
>>>
>>> if (!dig_port->lspcon.active || dig_port->dp.has_hdmi_sink)
>>> @@ -3161,6 +3163,7 @@ static void intel_ddi_update_pipe_dp(struct intel_atomic_state *state,
>>> intel_drrs_update(intel_dp, crtc_state);
>>>
>>> intel_backlight_update(state, encoder, crtc_state, conn_state);
>>> + drm_connector_update_privacy_screen(conn_state);
>>> }
>>>
>>> void intel_ddi_update_pipe(struct intel_atomic_state *state,
>>> @@ -3979,6 +3982,19 @@ intel_ddi_init_dp_connector(struct intel_digital_port *dig_port)
>>> return NULL;
>>> }
>>>
>>> + if (dig_port->base.type == INTEL_OUTPUT_EDP) {
>>
>> Connector type check would be a bit more consistent with what this is
>> about I think. But there's is 1:1 correspondence with the encoder type
>> for eDP so not a particularly important point.
>>
>> Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> I see only 8 out of 10 patches in this series were applied to drm-tip.
> I'm curious if there is any reason for which the last 2 patches were
> not applied:
>
> [Patch 9/10]: drm/i915: Add intel_modeset_probe_defer() helper
> [Patch 10/10]: drm/i915: Add privacy-screen support (v3)
>
> I look forward to getting them merged so that I can use them.
The main-parts of the patch-set were merged through drm-misc-next,
the 2 i915 patches had a conflict there since the series was
based on drm-tip and some of the surrounding i915 code had some
small changes in drm-intel-next which was not in drm-misc-next yet.
Once drm-intel-next merges in recent drm-misc-next changes
(after the merge window closes) I will push the remaining 2 patches
through drm-intel-next and then everything will be in drm-tip and
on its way to 5.17 .
Regards,
Hans
>>> + struct drm_device *dev = dig_port->base.base.dev;
>>> + struct drm_privacy_screen *privacy_screen;
>>> +
>>> + privacy_screen = drm_privacy_screen_get(dev->dev, NULL);
>>> + if (!IS_ERR(privacy_screen)) {
>>> + drm_connector_attach_privacy_screen_provider(&connector->base,
>>> + privacy_screen);
>>> + } else if (PTR_ERR(privacy_screen) != -ENODEV) {
>>> + drm_warn(dev, "Error getting privacy-screen\n");
>>> + }
>>> + }
>>> +
>>> return connector;
>>> }
>>>
>>> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
>>> index 86dbe366a907..84715a779d9d 100644
>>> --- a/drivers/gpu/drm/i915/display/intel_display.c
>>> +++ b/drivers/gpu/drm/i915/display/intel_display.c
>>> @@ -42,6 +42,7 @@
>>> #include <drm/drm_edid.h>
>>> #include <drm/drm_fourcc.h>
>>> #include <drm/drm_plane_helper.h>
>>> +#include <drm/drm_privacy_screen_consumer.h>
>>> #include <drm/drm_probe_helper.h>
>>> #include <drm/drm_rect.h>
>>>
>>> @@ -12769,6 +12770,8 @@ void intel_modeset_driver_remove_nogem(struct drm_i915_private *i915)
>>>
>>> bool intel_modeset_probe_defer(struct pci_dev *pdev)
>>> {
>>> + struct drm_privacy_screen *privacy_screen;
>>> +
>>> /*
>>> * apple-gmux is needed on dual GPU MacBook Pro
>>> * to probe the panel if we're the inactive GPU.
>>> @@ -12776,6 +12779,13 @@ bool intel_modeset_probe_defer(struct pci_dev *pdev)
>>> if (vga_switcheroo_client_probe_defer(pdev))
>>> return true;
>>>
>>> + /* If the LCD panel has a privacy-screen, wait for it */
>>> + privacy_screen = drm_privacy_screen_get(&pdev->dev, NULL);
>>> + if (IS_ERR(privacy_screen) && PTR_ERR(privacy_screen) == -EPROBE_DEFER)
>>> + return true;
>>> +
>>> + drm_privacy_screen_put(privacy_screen);
>>> +
>>> return false;
>>> }
>>>
>>> --
>>> 2.31.1
>>
>> --
>> Ville Syrjälä
>> Intel
>
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