lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Thu, 19 Jun 2014 09:40:19 +0200
From:	Boris BREZILLON <>
To:	Bo Shen <>
CC:	Thierry Reding <>,
	Nicolas Ferre <>,
	David Airlie <>,
	Samuel Ortiz <>,
	Lee Jones <>,,
	Jean-Jacques Hiblot <>,,,,,
	Alexandre Belloni <>,
	Laurent Pinchart <>,
	Jean-Christophe Plagniol-Villard <>,
Subject: Re: [PATCH v2 4/7] ARM: at91/dt: split sama5d3 lcd pin definitions
 to match RGB mode configs

Hello Bo,

On 19/06/2014 09:07, Bo Shen wrote:
> Hi Boris,
> On 06/10/2014 12:04 AM, Boris BREZILLON wrote:
>> The HLCDC (High LCD Controller) IP supports 4 different output mode
>> (RGB444, RGB565, RGB666 and RGB888) and the pin muxing depends on the
>> chosen RGB mode.
>> Split the pin definition to be able to set the pin config according
>> to the
>> selected mode.
>> Signed-off-by: Boris BREZILLON <>
>> ---
>>   arch/arm/boot/dts/sama5d3_lcd.dtsi | 127
>> ++++++++++++++++++++++++++++---------
>>   1 file changed, 96 insertions(+), 31 deletions(-)
> On sama5d3xek board, it only works in 24bits output mode. And it
> depends on the hardware design. So, I think only keep only one pinctrl
> configuration.

I'm not describing a specific board design but rather SoC capabilities
(this dtsi is SoC related not board related), and the sama5d3 SoC
supports 4 different RGB output modes through the RGB connector.

If you take a look at patch 7, you'll see that I chose mode 3 (which is
RGB888), and given this mode the HLCDC driver (atmel_hlcdc_panel.c) will
request the appropriate pin state:

atmel,panel = <&panel 3 0>;

Best Regards,


Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists