This is a note to let you know that I've just added the patch titled
drm/amd/display: hpd rx irq not working with eDP interface
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-hpd-rx-irq-not-working-with-edp-interface.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From eeefe7c4820b6baa0462a8b723ea0a3b5846ccae Mon Sep 17 00:00:00 2001
From: Robin Chen <robin.chen@xxxxxxx>
Date: Fri, 17 Feb 2023 20:47:57 +0800
Subject: drm/amd/display: hpd rx irq not working with eDP interface
From: Robin Chen <robin.chen@xxxxxxx>
commit eeefe7c4820b6baa0462a8b723ea0a3b5846ccae upstream.
[Why]
This is the fix for the defect of commit ab144f0b4ad6
("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: ab144f0b4ad6 ("drm/amd/display: Allow individual control of eDP hotplug support")
Cc: stable@xxxxxxxxxxxxxxx
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Reviewed-by: Wenjing Liu <Wenjing.Liu@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Robin Chen <robin.chen@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
(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@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 9 +++++++--
drivers/gpu/drm/amd/display/dc/dc_types.h | 6 ++++++
2 files changed, 13 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1634,14 +1634,18 @@ static bool dc_link_construct_legacy(str
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(str
link->irq_source_hpd = DC_IRQ_SOURCE_INVALID;
break;
default:
+ link->irq_source_hpd = DC_IRQ_SOURCE_INVALID;
break;
}
}
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -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_ */
Patches currently in stable-queue which might be from robin.chen@xxxxxxx are
queue-6.1/drm-amd-display-hpd-rx-irq-not-working-with-edp-interface.patch
