[U-Boot] Fwd: TI:OMAP: [PATCH 5/7] Add DSS driver for OMAP3

Khasim Syed Mohammed khasim at beagleboard.org
Mon Jan 25 15:05:52 CET 2010


On Sun, Jan 24, 2010 at 5:48 AM, Tom <Tom.Rix at windriver.com> wrote:
> Khasim Syed Mohammed wrote:
>>
>> From cf8fa28973de7609d27146730d9e019b7c919b51 Mon Sep 17 00:00:00 2001
>> From: Syed Mohammed Khasim <khasim at ti.com>
>> Date: Tue, 12 Jan 2010 23:57:28 +0530
>> Subject: [PATCH] Add DSS driver for OMAP3
>>
>> Supports dynamic panel configuration
>> Supports dynamic tv standard selection
>> Adds support for DSS register access through generic APIs
>>
>> Incorporated DSS register access using structures.
>>
>> Previous discussions are here
>> http://www.mail-archive.com/u-boot@lists.denx.de/msg27150.html
>>
>> Signed-off-by: Syed Mohammed Khasim <khasim at ti.com>
>> ---
>>  drivers/video/Makefile           |    1 +
>>  drivers/video/omap3_dss.c        |  130 ++++++++++++++++++++++++++++
>>  include/asm-arm/arch-omap3/dss.h |  173
>> ++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 304 insertions(+), 0 deletions(-)
>>  create mode 100644 drivers/video/omap3_dss.c
>>  create mode 100644 include/asm-arm/arch-omap3/dss.h
>>
>> diff --git a/drivers/video/Makefile b/drivers/video/Makefile
>> index bb6b5a0..cb15dc2 100644
>> --- a/drivers/video/Makefile
>> +++ b/drivers/video/Makefile
>> @@ -37,6 +37,7 @@ COBJS-$(CONFIG_SED156X) += sed156x.o
>>  COBJS-$(CONFIG_VIDEO_SM501) += sm501.o
>>  COBJS-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o
>>  COBJS-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o
>> +COBJS-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o
>
> Alphabetical order

Sure

>
>>  COBJS-y += videomodes.o
>>
>>  COBJS  := $(COBJS-y)
>> diff --git a/drivers/video/omap3_dss.c b/drivers/video/omap3_dss.c
>> new file mode 100644
>> index 0000000..69c705a
>> --- /dev/null
>> +++ b/drivers/video/omap3_dss.c
>> @@ -0,0 +1,130 @@
>> +/*
>> + * (C) Copyright 2010
>> + * Texas Instruments, <www.ti.com>
>> + * Syed Mohammed Khasim <khasim at ti.com>
>> + *
>> + * Referred to Linux DSS driver files for OMAP3
>> + *
>> + * See file CREDITS for list of people who contributed to this
>> + * project.
>> + *
>> + * This program is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License as
>> + * published by the Free Software Foundation's version 2 of
>> + * the License.
>
> This needs an - or later -
> http://www.denx.de/wiki/U-Boot/Patches
> Similar problem below.
>
>> + *
>> + * This program is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>> + * GNU General Public License for more details.
>> + *
>
> <snip>
Sure

>
>> + * You should have received a copy of the GNU General Public License
>> + * along with this program; if not, write to the Free Software
>> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
>> + * MA 02111-1307 USA
>> + */
>> +
>
>
>> +#include <common.h>
>> new file mode 100644
>> index 0000000..e5e3b0d
>> --- /dev/null
>> +++ b/include/asm-arm/arch-omap3/dss.h
>> @@ -0,0 +1,173 @@
>> +/*
>> + * (C) Copyright 2010
>> + * Texas Instruments, <www.ti.com>
>> + * Syed Mohammed Khasim <khasim at ti.com>
>> + *
>> + * Referred to Linux DSS driver files for OMAP3
>> + *
>> + * See file CREDITS for list of people who contributed to this
>> + * project.
>> + *
>> + * This program is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License as
>> + * published by the Free Software Foundation's version 2 of
>> + * the License.
>
> Similar license
> - or later -
Sure
>
>> + *
>> + * This program is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>> + * GNU General Public License for more details.
>> + *
>> + * You should have received a copy of the GNU General Public License
>> + * along with this program; if not, write to the Free Software
>> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
>> + * MA 02111-1307 USA
>> + */
>> +
>> +#ifndef DSS_H
>> +#define DSS_H
>> +
>> +/*
>> + * DSS Base Registers
>> + */
>> +#define OMAP3_DSS_BASE         0x48050040
>> +#define OMAP3_DISPC_BASE       0x48050440
>> +#define OMAP3_VENC_BASE                0x48050C00
>> +
>> +/* DSS Registers */
>> +struct dss_regs {
>> +       u32 control;                            /* 0x40 */
>
> Add a comment to explain why base starts at 0x40
> could also be handled with changing code
> OMAP3_DSS_BASE 0x48050000
> struct dss_regs {
> u8 reserved_1[0x40];
> ..
may be,.. let me try.

>
>> +       u32 sdi_control;                        /* 0x44 */
>> +       u32 pll_control;                        /* 0x48 */
>> +};
>> +
>> +/* DISPC Registers */
>> +struct dispc_regs {
>
> similar

ok
>
>> +       u32 control;                            /* 0x40 */
>
> Tom

Thanks for very detailed review. Mainly Licensing.

Regards,
Khasim


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