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drm/omap: hdmi4: Simplify EDID read

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Now that the omap_dss_device EDID read operation has been removed,
simplify the bridge-based EDID access by merging multiple functions
together.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-44-laurent.pinchart@ideasonboard.com
This commit is contained in:
Laurent Pinchart 2020-02-26 13:25:03 +02:00 committed by Tomi Valkeinen
parent 96b0a34d27
commit 7f113085af
1 changed files with 40 additions and 56 deletions
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96
drivers/gpu/drm/omapdrm/dss/hdmi4.c
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@ -309,55 +309,6 @@ void hdmi4_core_disable(struct hdmi_core_data *core)
mutex_unlock(&hdmi->lock);
}
static struct edid *
hdmi_do_read_edid(struct omap_hdmi *hdmi,
struct edid *(*read)(struct omap_hdmi *hdmi,
struct drm_connector *connector),
struct drm_connector *connector)
{
struct edid *edid = NULL;
unsigned int cec_addr;
bool need_enable;
int r;
need_enable = hdmi->core_enabled == false;
if (need_enable) {
r = hdmi4_core_enable(&hdmi->core);
if (r)
return NULL;
}
mutex_lock(&hdmi->lock);
r = hdmi_runtime_get(hdmi);
BUG_ON(r);
r = hdmi4_core_ddc_init(&hdmi->core);
if (r)
goto done;
edid = read(hdmi, connector);
done:
hdmi_runtime_put(hdmi);
mutex_unlock(&hdmi->lock);
if (edid && edid->extensions) {
unsigned int len = (edid->extensions + 1) * EDID_LENGTH;
cec_addr = cec_get_edid_phys_addr((u8 *)edid, len, NULL);
} else {
cec_addr = CEC_PHYS_ADDR_INVALID;
}
hdmi4_cec_set_phys_addr(&hdmi->core, cec_addr);
if (need_enable)
hdmi4_core_disable(&hdmi->core);
return edid;
}
/* -----------------------------------------------------------------------------
* DRM Bridge Operations
*/
@ -485,18 +436,51 @@ static void hdmi4_bridge_hpd_notify(struct drm_bridge *bridge,
hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID);
}
static struct edid *hdmi4_bridge_read_edid(struct omap_hdmi *hdmi,
struct drm_connector *connector)
{
return drm_do_get_edid(connector, hdmi4_core_ddc_read, &hdmi->core);
}
static struct edid *hdmi4_bridge_get_edid(struct drm_bridge *bridge,
struct drm_connector *connector)
{
struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
struct edid *edid = NULL;
unsigned int cec_addr;
bool need_enable;
int r;
return hdmi_do_read_edid(hdmi, hdmi4_bridge_read_edid, connector);
need_enable = hdmi->core_enabled == false;
if (need_enable) {
r = hdmi4_core_enable(&hdmi->core);
if (r)
return NULL;
}
mutex_lock(&hdmi->lock);
r = hdmi_runtime_get(hdmi);
BUG_ON(r);
r = hdmi4_core_ddc_init(&hdmi->core);
if (r)
goto done;
edid = drm_do_get_edid(connector, hdmi4_core_ddc_read, &hdmi->core);
done:
hdmi_runtime_put(hdmi);
mutex_unlock(&hdmi->lock);
if (edid && edid->extensions) {
unsigned int len = (edid->extensions + 1) * EDID_LENGTH;
cec_addr = cec_get_edid_phys_addr((u8 *)edid, len, NULL);
} else {
cec_addr = CEC_PHYS_ADDR_INVALID;
}
hdmi4_cec_set_phys_addr(&hdmi->core, cec_addr);
if (need_enable)
hdmi4_core_disable(&hdmi->core);
return edid;
}
static const struct drm_bridge_funcs hdmi4_bridge_funcs = {