Re: [PATCH v8 RESEND 0/2] Add DSI display support for SA8775P target

2025-06-05 Thread Pengyu Luo
On Wed, 4 Jun 2025 12:48:49 +0530 Ayushi Makhija wrote: > This series enables the support for DSI to DP bridge ports > (labled as DSI0 and DSI1) of the Qualcomm's SA8775P Ride platform. > > SA8775P SoC has DSI controller v2.5.1 and DSI PHY v4.2. > The Ride platform is having ANX7625 DSI to DP br

Re: [RFC PATCH 1/2] backlight: Rename duplicated devices to support dual-backlight setups

2025-06-02 Thread Pengyu Luo
On Mon, May 26, 2025 at 4:53 PM Jani Nikula wrote: > On Sun, 25 May 2025, Pengyu Luo wrote: > > When registering a backlight device, if a device with the same name > > already exists, append "-secondary" to the new device's name. This is > > useful for platfo

[RFC PATCH 2/2] backlight: Improve support for dual backlight with primary/secondary linkage

2025-05-25 Thread Pengyu Luo
secondary devices) It also update `backlight_update_status()` to ensure that both primary and secondary devices are updated together during brightness changes. This provides a consistent update mechanism in dual-backlight case. Suggested-by: Daniel Thompson Signed-off-by: Pengyu Luo --- drivers

[RFC PATCH 1/2] backlight: Rename duplicated devices to support dual-backlight setups

2025-05-25 Thread Pengyu Luo
y one secondary instance is supported. If more instances are needed, this logic can be extended with auto-increment or a more flexible naming scheme. Suggested-by: Daniel Thompson Signed-off-by: Pengyu Luo --- drivers/video/backlight/backlight.c | 20 ++-- 1 file changed, 18 insertions(

Re: [PATCH v8 00/15] drm/msm/dpu: Support quad pipe with dual-DSI

2025-04-24 Thread Pengyu Luo
On Wed, Apr 23, 2025 at 10:50 AM Jun Nie wrote: > Pengyu Luo 于2025年4月19日周六 02:34写道: > > > > On Mon, 03 Mar 2025 23:14:29 +0800 Jun Nie wrote: > > > 2 or more SSPPs and dual-DSI interface are need for super wide panel. > > > And 4 DSC are preferred for power

Re: [PATCH v8 00/15] drm/msm/dpu: Support quad pipe with dual-DSI

2025-04-18 Thread Pengyu Luo
On Mon, 03 Mar 2025 23:14:29 +0800 Jun Nie wrote: > 2 or more SSPPs and dual-DSI interface are need for super wide panel. > And 4 DSC are preferred for power optimal in this case due to width > limitation of SSPP and MDP clock rate constrain. This patch set > extends number of pipes to 4 and revis

Re: [PATCH 2/4] backlight: ktz8866: add slave handler

2025-04-18 Thread Pengyu Luo
On Tue, Apr 8, 2025 at 12:27 AM Daniel Thompson wrote: > On Mon, Apr 07, 2025 at 05:51:17PM +0800, Pengyu Luo wrote: > > Kinetic ktz8866, found in many android devices, nowadays, some oem use > > dual ktz8866 to support a larger panel and higher brightness, original > > dri

Re: [PATCH 2/4] backlight: ktz8866: add slave handler

2025-04-18 Thread Pengyu Luo
On Tue, Apr 8, 2025 at 12:27 AM Daniel Thompson wrote: > On Mon, Apr 07, 2025 at 05:51:17PM +0800, Pengyu Luo wrote: > > Kinetic ktz8866, found in many android devices, nowadays, some oem use > > dual ktz8866 to support a larger panel and higher brightness, original > > dri

Re: [PATCH 2/4] backlight: ktz8866: add slave handler

2025-04-18 Thread Pengyu Luo
On Mon, Apr 7, 2025 at 6:00 PM Krzysztof Kozlowski wrote: > On 07/04/2025 11:51, Pengyu Luo wrote: > > Kinetic ktz8866, found in many android devices, nowadays, some oem use > > dual ktz8866 to support a larger panel and higher brightness, original > > driver would only

[PATCH 0/4] backlight: ktz8866: improve it and support slave

2025-04-07 Thread Pengyu Luo
-bindings, so adding new support. and improve original driver. Details in every commit log. Pengyu Luo (4): dt-bindings: backlight: kinetic,ktz8866: add ktz8866 slave compatible backlight: ktz8866: add slave handler backlight: ktz8866: improve current sinks setting backlight: ktz8866: add

[PATCH 2/4] backlight: ktz8866: add slave handler

2025-04-07 Thread Pengyu Luo
that, none of the devices supported by upstream require this, the devices using this is porting. Signed-off-by: Pengyu Luo --- drivers/video/backlight/ktz8866.c | 68 +++ 1 file changed, 59 insertions(+), 9 deletions(-) diff --git a/drivers/video/backlight/ktz8866.c b

[PATCH 1/4] dt-bindings: backlight: kinetic, ktz8866: add ktz8866 slave compatible

2025-04-07 Thread Pengyu Luo
Kinetic ktz8866, found in many android devices, nowadays, some oem use dual ktz8866 to support a larger panel and higher brightness, add the binding for slave case. Signed-off-by: Pengyu Luo --- .../leds/backlight/kinetic,ktz8866.yaml | 29 +++ 1 file changed, 24

[PATCH 4/4] backlight: ktz8866: add definitions to make it more readable

2025-04-07 Thread Pengyu Luo
LSB, MSB and their handling are slightly confused, so improve it. Signed-off-by: Pengyu Luo --- drivers/video/backlight/ktz8866.c | 8 ++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/ktz8866.c b/drivers/video/backlight/ktz8866.c index b67ca136d

[PATCH 3/4] backlight: ktz8866: improve current sinks setting

2025-04-07 Thread Pengyu Luo
I polled all registers when the module was loading, found that current sinks have already been configured. Bootloader would set when booting. So checking it before setting the all channels. Signed-off-by: Pengyu Luo --- drivers/video/backlight/ktz8866.c | 23 +++ 1 file