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drm/amd/display: hpd rx irq not working with eDP interface

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commit eeefe7c4820b6baa0462a8b723ea0a3b5846ccae upstream.

[Why]
This is the fix for the defect of commit ab144f0b4a
("drm/amd/display: Allow individual control of eDP hotplug support").

[How]
To revise the default eDP hotplug setting and use the enum to git rid
of the magic number for different options.

Fixes: ab144f0b4a ("drm/amd/display: Allow individual control of eDP hotplug support")
Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Robin Chen <robin.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit eeefe7c4820b6baa0462a8b723ea0a3b5846ccae)
Hand modified for missing file rename changes and symbol moves in 6.1.y.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robin Chen 2023-02-17 20:47:57 +08:00 committed by Greg Kroah-Hartman
parent 7bfd4c0ebc
commit 28ee628fff
2 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/amd/display/dc/core/dc_link.c
View File

@ -1634,14 +1634,18 @@ static bool dc_link_construct_legacy(struct dc_link *link,
link->irq_source_hpd = DC_IRQ_SOURCE_INVALID;
switch (link->dc->config.allow_edp_hotplug_detection) {
case 1: // only the 1st eDP handles hotplug
case HPD_EN_FOR_ALL_EDP:
link->irq_source_hpd_rx =
dal_irq_get_rx_source(link->hpd_gpio);
break;
case HPD_EN_FOR_PRIMARY_EDP_ONLY:
if (link->link_index == 0)
link->irq_source_hpd_rx =
dal_irq_get_rx_source(link->hpd_gpio);
else
link->irq_source_hpd = DC_IRQ_SOURCE_INVALID;
break;
case 2: // only the 2nd eDP handles hotplug
case HPD_EN_FOR_SECONDARY_EDP_ONLY:
if (link->link_index == 1)
link->irq_source_hpd_rx =
dal_irq_get_rx_source(link->hpd_gpio);
@ -1649,6 +1653,7 @@ static bool dc_link_construct_legacy(struct dc_link *link,
link->irq_source_hpd = DC_IRQ_SOURCE_INVALID;
break;
default:
link->irq_source_hpd = DC_IRQ_SOURCE_INVALID;
break;
}
}

6
drivers/gpu/drm/amd/display/dc/dc_types.h
View File

@ -993,4 +993,10 @@ struct display_endpoint_id {
enum display_endpoint_type ep_type;
};
enum dc_hpd_enable_select {
HPD_EN_FOR_ALL_EDP = 0,
HPD_EN_FOR_PRIMARY_EDP_ONLY,
HPD_EN_FOR_SECONDARY_EDP_ONLY,
};
#endif /* DC_TYPES_H_ */