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Groups > linux.kernel > #1285032
| From | Yakir Yang <ykk@rock-chips.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v10 16/17] drm: bridge: analogix/dp: add edid modes parse in get_modes method |
| Date | 2015-12-07 07:50 +0100 |
| Message-ID | <qCXMt-Wu-13@gated-at.bofh.it> (permalink) |
| References | <qCXCN-T6-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Display Port monitor could support kinds of mode which indicate
in monitor edid, not just one single display resolution which
defined in panel or devivetree property display timing.
Note: Gustavo Padovan try to remove the controller and phy
power on function in bind time at bellow commit:
drm/exynos: do not start enabling DP at bind() phase
But for now driver need to read edid message in .get_modes()
function, so controller must be inited in bind time, so we
need to add controller init back.
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
---
Changes in v10: None
Changes in v9: None
Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4:
- Call drm_panel_prepare() in .get_modes function, ensure panel should
power on before driver try to read edid message.
Changes in v3:
- Add edid modes parse support
Changes in v2: None
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 26 ++++++++----
drivers/gpu/drm/bridge/analogix/analogix_dp_core.h | 46 +++++++++++-----------
2 files changed, 42 insertions(+), 30 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 0f42d73..aa1a9be 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -107,7 +107,7 @@ static unsigned char analogix_dp_calc_edid_check_sum(unsigned char *edid_data)
static int analogix_dp_read_edid(struct analogix_dp_device *dp)
{
- unsigned char edid[EDID_BLOCK_LENGTH * 2];
+ unsigned char *edid = dp->edid;
unsigned int extend_block = 0;
unsigned char sum;
unsigned char test_vector;
@@ -901,12 +901,6 @@ static void analogix_dp_commit(struct analogix_dp_device *dp)
DRM_ERROR("failed to disable the panel\n");
}
- ret = analogix_dp_handle_edid(dp);
- if (ret) {
- dev_err(dp->dev, "unable to handle edid\n");
- return;
- }
-
ret = analogix_dp_set_link_train(dp, dp->video_info.max_lane_count,
dp->video_info.max_link_rate);
if (ret) {
@@ -947,8 +941,24 @@ EXPORT_SYMBOL_GPL(analogix_dp_detect);
int analogix_dp_get_modes(struct device *dev)
{
struct analogix_dp_device *dp = dev_get_drvdata(dev);
+ struct edid *edid = (struct edid *)dp->edid;
int num_modes = 0;
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_prepare(dp->plat_data->panel)) {
+ DRM_ERROR("failed to setup the panel\n");
+ return -EINVAL;
+ }
+ }
+
+ if (analogix_dp_handle_edid(dp)) {
+ dev_err(dp->dev, "unable to handle edid\n");
+ return -EINVAL;
+ }
+
+ drm_mode_connector_update_edid_property(dp->connector, edid);
+ num_modes += drm_add_edid_modes(dp->connector, edid);
+
if (dp->plat_data->panel)
num_modes += drm_panel_get_modes(dp->plat_data->panel);
@@ -1309,6 +1319,8 @@ int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
phy_power_on(dp->phy);
+ analogix_dp_init_dp(dp);
+
ret = devm_request_irq(&pdev->dev, dp->irq, analogix_dp_irq_handler,
irq_flags, "analogix-dp", dp);
if (ret) {
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
index d3c7e0a..2bd2e0d 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
@@ -20,6 +20,28 @@
#define MAX_CR_LOOP 5
#define MAX_EQ_LOOP 5
+/* I2C EDID Chip ID, Slave Address */
+#define I2C_EDID_DEVICE_ADDR 0x50
+#define I2C_E_EDID_DEVICE_ADDR 0x30
+
+#define EDID_BLOCK_LENGTH 0x80
+#define EDID_HEADER_PATTERN 0x00
+#define EDID_EXTENSION_FLAG 0x7e
+#define EDID_CHECKSUM 0x7f
+
+/* DP_MAX_LANE_COUNT */
+#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
+#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
+
+/* DP_LANE_COUNT_SET */
+#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
+
+/* DP_TRAINING_LANE0_SET */
+#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
+#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
+#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
+#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
+
enum link_rate_type {
LINK_RATE_1_62GBPS = DP_LINK_BW_1_62,
LINK_RATE_2_70GBPS = DP_LINK_BW_2_7,
@@ -161,6 +183,7 @@ struct analogix_dp_device {
int dpms_mode;
int hpd_gpio;
bool need_force_hpd;
+ unsigned char edid[EDID_BLOCK_LENGTH * 2];
struct analogix_dp_plat_data *plat_data;
};
@@ -260,27 +283,4 @@ int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp);
void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp);
void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
-
-/* I2C EDID Chip ID, Slave Address */
-#define I2C_EDID_DEVICE_ADDR 0x50
-#define I2C_E_EDID_DEVICE_ADDR 0x30
-
-#define EDID_BLOCK_LENGTH 0x80
-#define EDID_HEADER_PATTERN 0x00
-#define EDID_EXTENSION_FLAG 0x7e
-#define EDID_CHECKSUM 0x7f
-
-/* DP_MAX_LANE_COUNT */
-#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
-#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
-
-/* DP_LANE_COUNT_SET */
-#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
-
-/* DP_TRAINING_LANE0_SET */
-#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
-#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
-#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
-#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
-
#endif /* _ANALOGIX_DP_CORE_H */
--
1.9.1
--
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[PATCH v10 0/17] Add Analogix Core Display Port Driver Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:40 +0100
[PATCH v10 06/17] ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:40 +0100
[PATCH v10 10/17] dt-bindings: add document for rockchip dp phy Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
Re: [PATCH v10 10/17] dt-bindings: add document for rockchip dp phy Rob Herring <robh@kernel.org> - 2015-12-08 16:10 +0100
Re: [PATCH v10 10/17] dt-bindings: add document for rockchip dp phy Yakir Yang <ykk@rock-chips.com> - 2015-12-09 02:20 +0100
[PATCH v10 09/17] phy: Add driver for rockchip Display Port PHY Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 11/17] drm: rockchip: vop: add bpc and color mode setting Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 05/17] dt-bindings: add document for analogix display port driver Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
Re: [PATCH v10 05/17] dt-bindings: add document for analogix display port driver Rob Herring <robh@kernel.org> - 2015-12-08 16:10 +0100
Re: [PATCH v10 05/17] dt-bindings: add document for analogix display port driver Yakir Yang <ykk@rock-chips.com> - 2015-12-09 02:10 +0100
[PATCH v10 13/17] drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288 Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 16/17] drm: bridge: analogix/dp: add edid modes parse in get_modes method Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 17/17] drm: bridge: analogix/dp: expand the look time for waiting AUX CH reply Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 08/17] dt-bindings: add document for rockchip variant of analogix_dp Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
Re: [PATCH v10 08/17] dt-bindings: add document for rockchip variant of analogix_dp Rob Herring <robh@kernel.org> - 2015-12-08 16:10 +0100
Re: [PATCH v10 08/17] dt-bindings: add document for rockchip variant of analogix_dp Yakir Yang <ykk@rock-chips.com> - 2015-12-09 02:10 +0100
[PATCH v10 03/17] drm: bridge: analogix/dp: remove duplicate configuration of link rate and link count Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 12/17] drm: bridge: analogix/dp: add some rk3288 special registers setting Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 15/17] drm: bridge: analogix/dp: move hpd detect to connector detect function Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 04/17] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 02/17] drm: bridge: analogix/dp: fix some obvious code style Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
[PATCH v10 14/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-12-07 07:50 +0100
Re: [PATCH v10 14/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Rob Herring <robh@kernel.org> - 2015-12-08 16:20 +0100
Re: [PATCH v10 14/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-12-09 02:30 +0100
Re: [PATCH v10 01/17] drm: bridge: analogix/dp: split exynos dp driver to bridge directory Yakir Yang <ykk@rock-chips.com> - 2015-12-07 08:40 +0100
Re: [PATCH v10 0/17] Add Analogix Core Display Port Driver Heiko Stübner <heiko@sntech.de> - 2015-12-08 16:40 +0100
Re: [PATCH v10 0/17] Add Analogix Core Display Port Driver Heiko Stübner <heiko@sntech.de> - 2015-12-09 16:00 +0100
[PATCH v10.1 08/17] dt-bindings: add document for rockchip variant of analogix_dp Yakir Yang <ykk@rock-chips.com> - 2015-12-09 03:10 +0100
[PATCH v10.1 05/17] dt-bindings: add document for analogix display port driver Yakir Yang <ykk@rock-chips.com> - 2015-12-09 03:10 +0100
[PATCH v10.1 14/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-12-09 03:20 +0100
Re: [PATCH v10.1 14/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Rob Herring <robh@kernel.org> - 2015-12-09 05:30 +0100
Re: [PATCH v10.1 14/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-12-09 07:00 +0100
[PATCH v10.1 10/17] dt-bindings: add document for rockchip dp phy Yakir Yang <ykk@rock-chips.com> - 2015-12-09 03:20 +0100
[PATCH v10.2 14/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-12-09 07:30 +0100
[PATCH v10 19/19] drm: bridge: analogix/dp: Fix the possible dead lock in bridge disable time Yakir Yang <ykk@rock-chips.com> - 2015-12-10 10:00 +0100
[PATCH v10 18/19] drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time Yakir Yang <ykk@rock-chips.com> - 2015-12-10 10:00 +0100
[PATCH v10.1 15/19] drm: bridge: analogix/dp: move hpd detect to connector detect function Yakir Yang <ykk@rock-chips.com> - 2015-12-10 10:00 +0100
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