Commit 8bc67f67 authored by John Stultz's avatar John Stultz Committed by Greg Kroah-Hartman

drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()

commit 6d5104c5 upstream.

In chasing down a previous issue with EDID probing from calling
drm_helper_hpd_irq_event() from irq context, Laurent noticed
that the DRM documentation suggests that
drm_kms_helper_hotplug_event() should be used instead.

Thus this patch replaces drm_helper_hpd_irq_event() with
drm_kms_helper_hotplug_event(), which requires we update the
connector.status entry and only call _hotplug_event() when the
status changes.

Cc: David Airlie <airlied@linux.ie>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarArchit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1484614372-15342-3-git-send-email-john.stultz@linaro.orgSigned-off-by: default avatarThong Ho <thong.ho.px@rvc.renesas.com>
Signed-off-by: default avatarNhan Nguyen <nhan.nguyen.yb@renesas.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8b5a7e44
...@@ -405,8 +405,22 @@ static bool adv7511_hpd(struct adv7511 *adv7511) ...@@ -405,8 +405,22 @@ static bool adv7511_hpd(struct adv7511 *adv7511)
static void adv7511_hpd_work(struct work_struct *work) static void adv7511_hpd_work(struct work_struct *work)
{ {
struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work); struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
enum drm_connector_status status;
unsigned int val;
int ret;
drm_helper_hpd_irq_event(adv7511->connector.dev); ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
if (ret < 0)
status = connector_status_disconnected;
else if (val & ADV7511_STATUS_HPD)
status = connector_status_connected;
else
status = connector_status_disconnected;
if (adv7511->connector.status != status) {
adv7511->connector.status = status;
drm_kms_helper_hotplug_event(adv7511->connector.dev);
}
} }
static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd) static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
......
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