2022-09-15 10:51:56

by Robert Foss

Subject: [PATCH v1 0/2] Fix chrontel-ch7033 reversion

When the chrontel-ch7033 series from Chris Morgan was reverted[1], I made mistake.

Patch 2/2 in this[1] series reverts [2] when it should have reverted [3].

This series fixes this mistake.


[1] https://lore.kernel.org/all/[email protected]/
[2] c312b0df3b13 - drm/bridge: ti-sn65dsi86: Implement bridge connector operations for DP
[3] ce9564cfc9ae - drm/bridge: chrontel-ch7033: Add byteswap order setting

Robert Foss (2):
Revert "Revert "drm/bridge: ti-sn65dsi86: Implement bridge connector
operations for DP""
Revert "drm/bridge: chrontel-ch7033: Add byteswap order setting"

drivers/gpu/drm/bridge/chrontel-ch7033.c | 15 ++-----------
drivers/gpu/drm/bridge/ti-sn65dsi86.c | 28 ++++++++++++++++++++++++
2 files changed, 30 insertions(+), 13 deletions(-)

--
2.34.1

2022-09-15 10:56:24

by Robert Foss

Subject: [PATCH v1 1/2] Revert "Revert "drm/bridge: ti-sn65dsi86: Implement bridge connector operations for DP""

This commit was accidentally reverted instead of another commit, and
therefore needs to be reinstated.

This reverts commit 8c9c40ec83445b188fb6b59e119bf5c2de81b02d.

Signed-off-by: Robert Foss <[email protected]>
---
drivers/gpu/drm/bridge/ti-sn65dsi86.c | 28 +++++++++++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 6e053e2af229..3c3561942eb6 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -29,6 +29,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
#include <drm/drm_bridge_connector.h>
+#include <drm/drm_edid.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_of.h>
#include <drm/drm_panel.h>
@@ -68,6 +69,7 @@
#define BPP_18_RGB BIT(0)
#define SN_HPD_DISABLE_REG 0x5C
#define HPD_DISABLE BIT(0)
+#define HPD_DEBOUNCED_STATE BIT(4)
#define SN_GPIO_IO_REG 0x5E
#define SN_GPIO_INPUT_SHIFT 4
#define SN_GPIO_OUTPUT_SHIFT 0
@@ -1158,10 +1160,33 @@ static void ti_sn_bridge_atomic_post_disable(struct drm_bridge *bridge,
pm_runtime_put_sync(pdata->dev);
}

+static enum drm_connector_status ti_sn_bridge_detect(struct drm_bridge *bridge)
+{
+ struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge);
+ int val = 0;
+
+ pm_runtime_get_sync(pdata->dev);
+ regmap_read(pdata->regmap, SN_HPD_DISABLE_REG, &val);
+ pm_runtime_put_autosuspend(pdata->dev);
+
+ return val & HPD_DEBOUNCED_STATE ? connector_status_connected
+ : connector_status_disconnected;
+}
+
+static struct edid *ti_sn_bridge_get_edid(struct drm_bridge *bridge,
+ struct drm_connector *connector)
+{
+ struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge);
+
+ return drm_get_edid(connector, &pdata->aux.ddc);
+}
+
static const struct drm_bridge_funcs ti_sn_bridge_funcs = {
.attach = ti_sn_bridge_attach,
.detach = ti_sn_bridge_detach,
.mode_valid = ti_sn_bridge_mode_valid,
+ .get_edid = ti_sn_bridge_get_edid,
+ .detect = ti_sn_bridge_detect,
.atomic_pre_enable = ti_sn_bridge_atomic_pre_enable,
.atomic_enable = ti_sn_bridge_atomic_enable,
.atomic_disable = ti_sn_bridge_atomic_disable,
@@ -1257,6 +1282,9 @@ static int ti_sn_bridge_probe(struct auxiliary_device *adev,
pdata->bridge.type = pdata->next_bridge->type == DRM_MODE_CONNECTOR_DisplayPort
? DRM_MODE_CONNECTOR_DisplayPort : DRM_MODE_CONNECTOR_eDP;

+ if (pdata->bridge.type == DRM_MODE_CONNECTOR_DisplayPort)
+ pdata->bridge.ops = DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_DETECT;
+
drm_bridge_add(&pdata->bridge);

ret = ti_sn_attach_host(pdata);
--
2.34.1