r eDP on SC7280 platform.
Add the new compatible string to documentation.
Sankeerth Billakanti (2):
drm/msm/dp: Add support for SC7280 eDP
dt-bindings: Add SC7280 compatible string
.../bindings/display/msm/dp-controller.yaml| 3 ++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
backlight and pwm via pmic.
2. ASSR support programming on the sink.
3. SSC support programming on the sink.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 4 ++--
drivers/gpu/drm/msm/dp/dp_ctrl.c | 19 +++
drivers/gpu/drm/msm/dp
The Qualcomm SC7280 platform supports an eDP controller, add
compatible string for it to msm/binding.
Signed-off-by: Sankeerth Billakanti
---
Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings
This change will enable dpu encoder support for the native
eDP interface on next generation snapdragon platforms.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 7 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 33 +
2
interface on the next generation snapdragon platforms.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/Makefile |6 +
drivers/gpu/drm/msm/edp/edp_common.c |4 +
drivers/gpu/drm/msm/edp/edp_common.h |6 +
drivers/gpu/drm/msm/edp
generation eDP controller and phy driver implementation.
A common interface to choose enable the required eDP driver.
Sankeerth Billakanti (3):
drm/msm/edp: support multiple generations of edp hardware
drm/msm/edp: add support for next gen edp
drm/msm/disp/dpu1: add support for edp encoder
generation eDP controller and phy driver implementation.
A common interface to choose enable the required eDP driver.
Sankeerth Billakanti (3):
drm/msm/edp: support multiple generations of edp hardware
drm/msm/edp: add support for next gen edp
drm/msm/disp/dpu1: add support for edp encoder
interface on the next generation snapdragon platforms.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/Makefile |6 +
drivers/gpu/drm/msm/edp/edp_common.c |4 +
drivers/gpu/drm/msm/edp/edp_common.h |6 +
drivers/gpu/drm/msm/edp
This change will enable dpu encoder support for the native
eDP interface on next generation snapdragon platforms.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 7 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 33 +
2
=*
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=613654&state=*
Sankeerth Billakanti (9):
arm64: dts: qcom: sc7280: rename edp_out label to mdss_edp_out
arm64: dts: qcom: sc7280: Add support for eDP panel on CRD
arm64: dts: qcom: sc7280: Enable backlight for eDP panel
drm/pa
Rename the edp_out label in the sc7280 platform to mdss_edp_out
so that the nodes related to mdss are all grouped together in
the board specific files.
Signed-off-by: Sankeerth Billakanti
---
Changes in v5:
- Change the order of patches
- Modify commit text
arch/arm64/boot/dts/qcom/sc7280
Enable support for eDP interface via aux_bus on CRD platform.
Signed-off-by: Sankeerth Billakanti
---
Changes in v5:
- Change the order of patches
- Remove the backlight nodes
- Remove the bias setting
- Fix compilation issue
- Model VREG_EDP_BP for backlight power
Changes in v4
Enable backlight support for eDP panel on CRD platform for sc7280.
Signed-off-by: Sankeerth Billakanti
---
Changes in v5:
- Separate out backlight nodes
arch/arm64/boot/dts/qcom/sc7280-crd.dts | 18 ++
1 file changed, 18 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom
Add panel identification entry for the sharp LQ140M1JW46 eDP panel
with power sequencing delay information.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/panel/panel-edp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/panel/panel-edp.c
b/drivers/gpu/drm/panel
the regulator and clock votes for the controller
resources are balanced.
EV_HPD_INIT_SETUP needs to execute immediately to enable the
interrupts for the aux transactions from panel-edp to get the modes
supported.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_display.c
after the panel is powered on. The panel power will be
enabled from the panel-edp driver.
The controller driver needs to wait for the hpd line to be asserted
by the sink.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_aux.c | 6 ++
drivers/gpu/drm/msm/dp
reflect the connect and
disconnect interrupt status without generating an actual HW interrupt.
The controller driver should not handle those masked interrupts.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 9 +++--
drivers/gpu/drm/msm/dp/dp_display.c | 24
The panel-edp driver modes needs to be validated differently from DP
because the link capabilities are not available for EDP by that time.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_display.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/msm/dp
Some eDP sinks or platform boards will not support hpd.
This patch adds support for those cases.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c
b/drivers
> -Original Message-
> From: Doug Anderson
> Sent: Friday, March 25, 2022 9:36 PM
> To: Sankeerth Billakanti (QUIC)
> Cc: Stephen Boyd ; David Airlie ;
> dri-devel ; bjorn.anders...@linaro.org;
> Thierry Reding ; Sam Ravnborg
> ; Kuogee Hsieh (QUIC) ;
>
=*
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=613654&state=*
Sankeerth Billakanti (8):
drm/msm/dp: Add eDP support via aux_bus
drm/msm/dp: wait for hpd high before aux transaction
drm/msm/dp: Support only IRQ_HPD and REPLUG interrupts for eDP
drm/msm/dp: avoid handling maske
initialized. The generic panel probe needs the controller
resources to be enabled to support the aux transactions originating from
the panel probe.
Signed-off-by: Sankeerth Billakanti
---
Changes in v6:
- Remove initialization
- Fix aux_bus node leak
- Split the patches
drivers/gpu/drm/msm/dp
sink can be hotplugged and unplugged anytime. The hpd
line gets asserted to indicate the sink is connected and ready. Hence
there is no need to wait for the hpd line to be asserted for a DP sink.
Signed-off-by: Sankeerth Billakanti
---
Changes in v6:
- Wait for hpd high only for eDP
- Split
interrupts. Any disruption in the link status
will be indicated via the IRQ_HPD interrupts.
So, the eDP controller driver can just enable the IRQ_HPD and replug
interrupts. The DP controller driver still needs to enable all the
interrupts.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm
The interrupt register will still reflect the connect and disconnect
interrupt status without generating an actual HW interrupt.
The controller driver should not handle those masked interrupts.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 5 +++--
1 file changed
The aux_bus support with the dp_display driver will enable the dp
resources during msm_dp_modeset_init. The host_init has to return early
if the core is already initialized to prevent putting an additional vote
for the dp controller resources.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu
Remove the unnecessary delay in executing the EV_HPD_INIT_SETUP event.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c
b/drivers/gpu/drm/msm/dp/dp_display.c
index
Some eDP sinks or platform boards will not support hpd.
This patch adds support for those cases.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c
The panel-edp driver modes needs to be validated differently from DP
because the link capabilities are not available for EDP by that time.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_display.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/msm/dp
From: Sankeerth Billakanti
The Qualcomm SC7280 platform supports an eDP controller, add
compatible string for it to dp-controller.
Signed-off-by: Sankeerth Billakanti
---
Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a
ments
Changes in V1:
- Add support for eDP on SC7280 platform.
- Add the new compatible string to documentation.
Sankeerth Billakanti (2):
drm/msm/dp: Add support for SC7280 eDP
dt-bindings: Add SC7280 compatible string
.../bindings/display/msm/dp-controller.yaml | 1 +
drivers/gp
From: Sankeerth Billakanti
The eDP controller on SC7280 is similar to the eDP/DP controllers
supported by the current driver implementation.
SC7280 supports one EDP and one DP controller which can operate
concurrently.
The following are some required changes to support eDP on sc7280:
1. SC7280
amp;archive=both
Sankeerth Billakanti (2):
ARM64: dts: qcom: enable eDP panel support for sc7280
drm/panel-edp: Add sharp panel support for sc7280
arch/arm64/boot/dts/qcom/sc7280-crd.dts | 127
drivers/gpu/drm/panel/panel-edp.c | 11 +++
2 files changed
Enable the eDP display panel support with backlight on sc7280 platform.
Signed-off-by: Sankeerth Billakanti
---
arch/arm64/boot/dts/qcom/sc7280-crd.dts | 127
1 file changed, 127 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd.dts
b/arch/arm64
Add eDP panel support for sc7280 CRD platform.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/panel/panel-edp.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-edp.c
b/drivers/gpu/drm/panel/panel-edp.c
index 176ef0c..bb2e346 100644
--- a
The sc7280 eDP sink that supports downspread will fail link training
if source does not enable SSC / downspread. This change will set the
downspread bit in the DP sink if supported and indicate SSC support
to the DP PHY driver.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp
From: Sankeerth Billakanti
The Qualcomm SC7280 platform supports one eDP controller
and a DP controller. This change will add the compatible
string for both eDP and DP to msm dp-controller binding.
Signed-off-by: Sankeerth Billakanti
changes in v3:
- Modify the subject (Doug Anderson
Add a macro to check for the max_downspread capability in
drm_dp_helper.
Signed-off-by: Sankeerth Billakanti
---
include/drm/drm_dp_helper.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index afdf7f4..b39e7a0 100644
--- a
delay for eDP controller.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_display.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c
b/drivers/gpu/drm/msm/dp/dp_display.c
index 61385d6..de6a1fd 100644
--- a
The eDP controller on SC7280 is similar to the eDP/DP controllers
supported by the current driver implementation.
SC7280 supports one EDP and one DP controller which can operate
concurrently.
This change adds the support for eDP and DP controller on sc7280.
Signed-off-by: Sankeerth Billakanti
The eDP sink on sc7280 supports ASSR and dp driver will
enable ASSR in the source hardware. The driver needs to
enable the ASSR field in the DPCD configuration register
to avoid screen corruption. This change will enable ASSR
if supported in the sink device.
Signed-off-by: Sankeerth Billakanti
subsequent patch series.
This is based on Bjorn's changes in the below mentioned series
to support both eDP and DP programming through the same driver:
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=564841
Sankeerth Billakanti (6):
dt-bindings: msm/dp: Add DP compa
The sc7280 eDP sink that supports downspread will fail link training
if source does not enable SSC / downspread. This change will set the
downspread bit in the DP sink if supported and indicate SSC support
to the DP PHY driver.
Signed-off-by: Sankeerth Billakanti
Reviewed-by: Stephen Boyd
From: Sankeerth Billakanti
The Qualcomm SC7280 platform supports one eDP controller
and a DP controller. This change will add the compatible
string for both eDP and DP to msm dp-controller binding.
Signed-off-by: Sankeerth Billakanti
changes in v3:
- Modify the subject (Doug Anderson
subsequent patch series.
This is based on Bjorn's changes in the below mentioned series
to support both eDP and DP programming through the same driver:
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=564841
Sankeerth Billakanti (5):
dt-bindings: msm/dp: Add DP compa
The eDP controller on SC7280 is similar to the eDP/DP controllers
supported by the current driver implementation.
SC7280 supports one EDP and one DP controller which can operate
concurrently.
This change adds the support for eDP and DP controller on sc7280.
Signed-off-by: Sankeerth Billakanti
Add a macro to check for the max_downspread capability in
drm_dp_helper.
Signed-off-by: Sankeerth Billakanti
Reviewed-by: Stephen Boyd
changes in v4:
- Return 1 for DPCD version >= v1.1 (Stephen Boyd)
---
include/drm/drm_dp_helper.h | 7 +++
1 file changed, 7 insertions(+)
diff --
The eDP sink on sc7280 supports ASSR and dp driver will
enable ASSR in the source hardware. The driver needs to
enable the ASSR field in the DPCD configuration register
to avoid screen corruption. This change will enable ASSR
if supported in the sink device.
Signed-off-by: Sankeerth Billakanti
From: Krishna Manikandan
Add mdss and mdp DT nodes for sc7280.
Signed-off-by: Krishna Manikandan
Reported-by: kernel test robot
Reviewed-by: Stephen Boyd
Reported-by: kernel test robot
Signed-off-by: Sankeerth Billakanti
---
Changes in v3:
None
Changes in v2:
- Rename display dt
From: Krishna Manikandan
Add DSI controller and PHY nodes for sc7280.
Signed-off-by: Rajeev Nandan
Signed-off-by: Krishna Manikandan
Reviewed-by: Matthias Kaehlcke
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
Changes in v3:
- Add the dsi_phy clocks (Kuogee Hsieh
Add edp controller and phy DT nodes for sc7280.
Signed-off-by: Krishna Manikandan
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
Changes in v3:
- Add one clock cell per line (Stephen Boyd)
- Unit address should match first reg property (Stephen Boyd)
- Remove
The sc7280 platform supports native eDP controller and PHY.
This change will add support for the eDP PHY on sc7280.
Signed-off-by: Sankeerth Billakanti
---
drivers/phy/qualcomm/phy-qcom-edp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c
b/drivers/phy
This series adds support for the eDP PHY on Qualcomm SC7280 platform.
The changes are dependent on v4 of the new eDP PHY driver introduced by Bjorn:
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=575135
Sankeerth Billakanti (3):
dt-bindings: phy: Add eDP PHY compatible for
Add compatible string for the supported eDP PHY on sc7280 platform.
Signed-off-by: Sankeerth Billakanti
---
Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
b
Some legacy eDP sinks may not support SSC. The support for SSC is
indicated through an opts flag from the controller driver. This
change will enable SSC only if the sink supports it.
Signed-off-by: Sankeerth Billakanti
---
drivers/phy/qualcomm/phy-qcom-edp.c | 8 +---
1 file changed, 5
From: Krishna Manikandan
Add mdss and mdp DT nodes for sc7280.
Signed-off-by: Krishna Manikandan
Reported-by: kernel test robot
Reviewed-by: Stephen Boyd
Reported-by: kernel test robot
Signed-off-by: Sankeerth Billakanti
---
Changes in v4:
None
Changes in v3:
None
Changes in v2
From: Krishna Manikandan
Add DSI controller and PHY nodes for sc7280.
Signed-off-by: Rajeev Nandan
Signed-off-by: Krishna Manikandan
Reviewed-by: Matthias Kaehlcke
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
Changes in v4:
None
Changes in v3:
- Add the
Add edp controller and phy DT nodes for sc7280.
Signed-off-by: Krishna Manikandan
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
Changes in v4:
None
Changes in v3:
- Add one clock cell per line (Stephen Boyd)
- Unit address should match first reg property
From: Kuogee Hsieh
Signed-off-by: Kuogee Hsieh
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
Changes in v4:
- Add the patch to display DT change series (Bjorn Andersson)
- Remove the trailing whitespaces
arch/arm64/boot/dts/qcom/sc7280.dtsi | 90
Add display devicetree support for sc7280 platform.
Krishna Manikandan (1):
arm64: dts: qcom: sc7280: add display dt nodes
Kuogee Hsieh (1):
arm64: dts: qcom: sc7280: Add Display Port node
Rajeev Nandan (1):
arm64: dts: qcom: sc7280: Add DSI display nodes
Sankeerth Billakanti (1
From: Krishna Manikandan
Add mdss and mdp DT nodes for sc7280.
Signed-off-by: Krishna Manikandan
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
arch/arm64/boot/dts/qcom/sc7280.dtsi | 90
1 file changed, 90 insertions(+)
diff --git a
From: Rajeev Nandan
Add DSI controller and PHY nodes for sc7280.
Signed-off-by: Rajeev Nandan
Signed-off-by: Krishna Manikandan
Reviewed-by: Matthias Kaehlcke
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
arch/arm64/boot/dts/qcom/sc7280.dtsi | 111
Add edp controller and phy DT nodes for sc7280.
Signed-off-by: Sankeerth Billakanti
Signed-off-by: Krishna Manikandan
Reviewed-by: Stephen Boyd
---
arch/arm64/boot/dts/qcom/sc7280.dtsi | 107 ++-
1 file changed, 105 insertions(+), 2 deletions(-)
diff --git a
From: Kuogee Hsieh
Signed-off-by: Kuogee Hsieh
Reviewed-by: Stephen Boyd
Signed-off-by: Sankeerth Billakanti
---
arch/arm64/boot/dts/qcom/sc7280.dtsi | 90 +++-
1 file changed, 88 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi
e
>> sink.
>>
>> Signed-off-by: Sankeerth Billakanti
>>
>> Changes in v2:
>> - Use dp bridge to set psr entry/exit instead of dpu_enocder
>> - Don't modify whitespaces
>> - set self refresh aware from atomic_check
>> - set sel
Hi Bjorn,
>> Add support for basic panel self refresh (PSR) feature for eDP.
>> Add a new interface to set PSR state in the sink from DPU.
>> Program the eDP controller to issue PSR enter and exit SDP to the
>> sink.
>>
>> Signed-off-by: Sankeerth Billakanti
following series:
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=586263&archive=both&state=*
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=560587&state=%2A&archive=both
Sankeerth Billakanti (4):
dt-bindings: display: simple: Add sharp LQ140M1JW46 pa
Add support for sharp LQ140M1JW46 display panel. It is a 14" eDP panel
with 1920x1080 display resolution.
Signed-off-by: Sankeerth Billakanti
---
Documentation/devicetree/bindings/display/panel/panel-simple.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devic
Enable the eDP display panel support without HPD on sc7280 platform.
Signed-off-by: Sankeerth Billakanti
---
Changes in v2:
- sort node references alphabetically
- improve readability
- move the pwm pinctrl to pwm node
- move the regulators to root
- define backlight power
- remove
Add support for the 14" sharp,lq140m1jw46 eDP panel.
Signed-off-by: Sankeerth Billakanti
---
Changes in v2:
- add mode when not using hpd
- add delays
- put dt-bindings
drivers/gpu/drm/panel/panel-edp.c | 31 +++
1 file changed, 31 insertions(+)
diff --
completed.
The eDP driver needs to register for IRQ_HPD only.
This support will be added later.
Signed-off-by: Sankeerth Billakanti
---
drivers/gpu/drm/msm/dp/dp_display.c | 8 ++
drivers/gpu/drm/msm/dp/dp_drm.c | 54 +
drivers/gpu/drm/msm/dp/dp_parser.h
following series:
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=586263&archive=both&state=*
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=560587&state=%2A&archive=both
Sankeerth Billakanti (4):
dt-bindings: display: simple: Add sharp LQ140M1JW46 pa
Enable the eDP display panel support without HPD on sc7280 platform.
Signed-off-by: Sankeerth Billakanti
---
Changes in v3:
- Sort the nodes alphabetically
- Use - instead of _ as node names
- Place the backlight and panel nodes under root
- Change the name of edp_out to mdss_edp_out
Add support for the 14" sharp,lq140m1jw46 eDP panel.
Signed-off-by: Sankeerth Billakanti
---
Changes in v3:
None
drivers/gpu/drm/panel/panel-edp.c | 31 +++
1 file changed, 31 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-edp.c
b/drivers/gpu/drm/
completed.
Signed-off-by: Sankeerth Billakanti
---
Changes in v3:
None
drivers/gpu/drm/msm/dp/dp_display.c | 8 ++
drivers/gpu/drm/msm/dp/dp_drm.c | 54 +
drivers/gpu/drm/msm/dp/dp_parser.h | 3 +++
3 files changed, 60 insertions(+), 5 deletions
Add support for sharp LQ140M1JW46 display panel. It is a 14" eDP panel
with 1920x1080 display resolution.
Signed-off-by: Sankeerth Billakanti
---
Changes in v3:
None
Documentation/devicetree/bindings/display/panel/panel-simple.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --
following series:
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=586263&archive=both&state=*
https://patchwork.kernel.org/project/linux-arm-msm/list/?series=560587&state=%2A&archive=both
Sankeerth Billakanti (5):
dt-bindings: display: simple: Add sharp LQ140M1JW46 pa
Add support for sharp LQ140M1JW46 display panel. It is a 14" eDP panel
with 1920x1080 display resolution.
Signed-off-by: Sankeerth Billakanti
Acked-by: Rob Herring
Reviewed-by: Stephen Boyd
---
Changes in v4:
None
Changes in v3:
None
Documentation/devicetree/bindings/display/
Enable the eDP display panel support without HPD on sc7280 platform.
Signed-off-by: Sankeerth Billakanti
---
Changes in v4:
- Create new patch for name changes
- Remove output-low
Changes in v3:
- Sort the nodes alphabetically
- Use - instead of _ as node names
- Place the backlight
Rename the edp_out label in the sc7280 platform to mdss_edp_out.
Signed-off-by: Sankeerth Billakanti
---
arch/arm64/boot/dts/qcom/sc7280-crd.dts | 10 +-
arch/arm64/boot/dts/qcom/sc7280.dtsi| 2 +-
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/boot/dts
Add support for the 14" sharp,lq140m1jw46 eDP panel.
Signed-off-by: Sankeerth Billakanti
---
00 ff ff ff ff ff ff 00 4d 10 23 15 00 00 00 00
35 1e 01 04 a5 1f 11 78 07 de 50 a3 54 4c 99 26
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 5a 87 80 a0 70 38 4d 40 30 20
35 00
completed.
Signed-off-by: Sankeerth Billakanti
---
Changes in v4:
- Remove obvious comments
- Define separate connector_ops for eDP
- Remove unnecessary checks
Changes in v3:
None
drivers/gpu/drm/msm/dp/dp_display.c | 6
drivers/gpu/drm/msm/dp/dp_drm.c | 62
the dp driver and hence we
want to explore it as a separate task/feature after the basic PSR feature.
Thank you,
Sankeerth
-Original Message-
From: Dmitry Baryshkov
Sent: Thursday, February 10, 2022 5:55 PM
To: Sankeerth Billakanti (QUIC) ;
dri-devel@lists.freedesktop.org; linux-arm
/20220211224006.1797846-6-dmitry.barysh...@linaro.org/
Sankeerth Billakanti (4):
drm/msm/dp: Add eDP support via aux_bus
drm/msm/dp: Support only IRQ_HPD and REPLUG interrupts for eDP
drm/msm/dp: wait for hpd high before aux transaction
drm/msm/dp: Support the eDP modes given by panel
drivers/gpu/drm
initialized. The generic panel probe needs the controller
resources to be enabled to support the aux transactions originating from
the panel probe.
Signed-off-by: Sankeerth Billakanti
---
Changes in v8:
- handle corner cases
- add comment for the bridge ops
Changes in v7:
- aux_bus is mandatory for
disconnect interrupts. Any disruption in the link status
will be indicated via the IRQ_HPD interrupts.
So, the eDP controller driver can just enable the IRQ_HPD and replug
interrupts. The DP controller driver still needs to enable all the
interrupts.
Signed-off-by: Sankeerth Billakanti
---
Changes in v8
sink can be hotplugged and unplugged anytime. The hpd
line gets asserted to indicate the sink is connected and ready. Hence
there is no need to wait for the hpd line to be asserted for a DP sink.
Signed-off-by: Sankeerth Billakanti
Reviewed-by: Douglas Anderson
---
These changes may be handled in
The eDP controller does not have a reliable way keep panel
powered on to read the sink capabilities. So, the controller
driver cannot validate if a mode can be supported by the
source. We will rely on the panel driver to populate only
the supported modes for now.
Signed-off-by: Sankeerth
/20220211224006.1797846-6-dmitry.barysh...@linaro.org/
Sankeerth Billakanti (4):
drm/msm/dp: Add eDP support via aux_bus
drm/msm/dp: Support only IRQ_HPD and REPLUG interrupts for eDP
drm/msm/dp: wait for hpd high before aux transaction
drm/msm/dp: Support the eDP modes given by panel
drivers/gpu/drm
initialized. The generic panel probe needs the controller
resources to be enabled to support the aux transactions originating from
the panel probe.
Signed-off-by: Sankeerth Billakanti
---
Changes in v9:
- add comments for panel probe
- modify the error handling checks
Changes in v8:
- handle corner
disconnect interrupts. Any disruption in the link status
will be indicated via the IRQ_HPD interrupts.
So, the eDP controller driver can just enable the IRQ_HPD and replug
interrupts. The DP controller driver still needs to enable all the
interrupts.
Signed-off-by: Sankeerth Billakanti
---
Changes in v9
sink can be hotplugged and unplugged anytime. The hpd
line gets asserted to indicate the sink is connected and ready. Hence
there is no need to wait for the hpd line to be asserted for a DP sink.
Signed-off-by: Sankeerth Billakanti
Reviewed-by: Douglas Anderson
---
These changes may be handled in
The eDP controller does not have a reliable way keep panel
powered on to read the sink capabilities. So, the controller
driver cannot validate if a mode can be supported by the
source. We will rely on the panel driver to populate only
the supported modes for now.
Signed-off-by: Sankeerth
/20220211224006.1797846-6-dmitry.barysh...@linaro.org/
Sankeerth Billakanti (4):
drm/msm/dp: Add eDP support via aux_bus
drm/msm/dp: Support only IRQ_HPD and REPLUG interrupts for eDP
drm/msm/dp: wait for hpd high before aux transaction
drm/msm/dp: Support the eDP modes given by panel
drivers/gpu/drm
initialized. The generic panel probe needs the controller
resources to be enabled to support the aux transactions originating from
the panel probe.
Signed-off-by: Sankeerth Billakanti
Reviewed-by: Douglas Anderson
Reviewed-by: Stephen Boyd
---
Changes in v10:
- modify the error handling condition
disconnect interrupts. Any disruption in the link status
will be indicated via the IRQ_HPD interrupts.
So, the eDP controller driver can just enable the IRQ_HPD and replug
interrupts. The DP controller driver still needs to enable all the
interrupts.
Signed-off-by: Sankeerth Billakanti
Reviewed-by
sink can be hotplugged and unplugged anytime. The hpd
line gets asserted to indicate the sink is connected and ready. Hence
there is no need to wait for the hpd line to be asserted for a DP sink.
Signed-off-by: Sankeerth Billakanti
Reviewed-by: Douglas Anderson
Reviewed-by: Stephen Boyd
---
These
The eDP controller does not have a reliable way keep panel
powered on to read the sink capabilities. So, the controller
driver cannot validate if a mode can be supported by the
source. We will rely on the panel driver to populate only
the supported modes for now.
Signed-off-by: Sankeerth
load()
>> call to the phy driver if possible. Hopefully qcom folks can help
>> clarify here.
>
>Interesting. Oddly enough, the sc7280 datasheet doesn't list the "_A".
>It calls these "VDD_VREF_0P9" and "VDD_VREF_1P2". However, on the
>schematic in front of me someone labeled these pins on the sc7280 with the
>"A". ...and the driver looks for a supply with the "a". :-/
>
>It would be good to get clarification from someone with better information.
>
>-Doug
Our internal power grid documents list the regulators as VDD_A_*_1P2 and
VDD_A_*_0P9
for all the platforms.
So, as a practice, we put the same name in the DT files. Hence,
Reviewed-by: Sankeerth Billakanti
Thank you,
Sankeerth
Hi Dmitry,
> On 31/03/2022 08:53, Sankeerth Billakanti (QUIC) wrote:
> > Hi Dmitry,
> >
> >> On Wed, 30 Mar 2022 at 19:03, Sankeerth Billakanti
> >> wrote:
> >>>
> >>> The interrupt register will still reflect the connect and disconne
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