linux-kernel - Re: [PATCH 0/8 v4] ARM OMAP2+ GPMC: fixes and bus children

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Date:	Fri, 6 Mar 2015 14:15:01 +0200
From:	Roger Quadros <rogerq@...com>
To:	Tony Lindgren <tony@...mide.com>,
	Robert ABEL <rabel@...-ec.uni-bielefeld.de>
CC:	<balbi@...com>, <linux-omap@...r.kernel.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux@....linux.org.uk>
Subject: Re: [PATCH 0/8 v4] ARM OMAP2+ GPMC: fixes and bus children

On 06/03/15 02:58, Tony Lindgren wrote:
> * Robert ABEL <rabel@...-ec.uni-bielefeld.de> [150227 08:00]:
>> These are the changes I proposed in these patch series: [1], [2], [3], [4]
>> rebased to 3.19 as well as new changes for little bugs I noticed while
>> preparing this patch series as well as changes introduced via comments.
>>
>> 1. DEBUG was undefined in source code --> remove offending lines
>> 2. add capability to have busses as children of the GPMC and multiple
>>    devices on a bus. See [2] for an example DTS syntax.
>> 3. debug output was unaligned --> align it
>> 4. output for copy-pasting to DTS had erroneous timing outputs and
>>    made it hard to copy-paste --> correct timing values, add comments
>>    as DTS comments.
>> 5. WAITMONITORINGTIME is expressed as GPMC_CLK cycles for all accesses.
>>    GPMCFCLKDIVIDER is used as a divider, so it must always be programmed.
>> 6. GPMCFCLKDIVIDER is calculated according to WAITMONITORINGTIME for
>>    asynchronous accesses inside the driver --> asynchronous accesses now
>>    completely decoupled from gpmc,sync-clk-ps.
>> 7. WAITMONITORINGTIME was being programmed/shown in GPMC_FCLK cycles instead
>>    of GPMC_CLK cycles --> add clock domain information where necessary.
>> 8. Calculated values for WAITMONITORINGTIME and CLKACTIVATIONTIME that were
>>    outside the defined range would not raise an error.
>>    DEVICESIZE, ATTACHEDDEVICEPAGELENGTH, WAITMONITORINGTIME and
>>    CLKACTIVATIONTIME would not be marked as incorrect on DTS output.
>>    --> Fix all of these.
> 
> Thanks for fixing all these issues:
> 
> Acked-by: Tony Lindgren <tony@...mide.com>

Thanks. Patches are added to my git tree at
	git@...hub.com:rogerq/linux.git
in the branch
	for-v4.1/gpmc-omap

cheers,
-roger
> 
>  
>> [1]: https://lkml.org/lkml/2015/2/12/495
>> [2]: https://lkml.org/lkml/2015/2/16/337
>> [3]: https://lkml.org/lkml/2015/2/24/609
>> [4]: https://lkml.org/lkml/2015/2/26/387
>>
>> Robert ABEL (9):
>>   ARM OMAP2+ GPMC: don't undef DEBUG
>>   ARM OMAP2+ GPMC: add bus children
>>   ARM OMAP2+ GPMC: fix debug output alignment
>>   ARM OMAP2+ GPMC: change get_gpmc_timing_reg output for DTS
>>   ARM OMAP2+ GPMC: always program GPMCFCLKDIVIDER
>>   ARM OMAP2+ GPMC: calculate GPMCFCLKDIVIDER based on WAITMONITORINGTIME
>>   ARM OMAP2+ GPMC: fix WAITMONITORINGTIME divider bug
>>   ARM OMAP2+ GPMC: fix programming/showing reserved timing parameters
>>
>>  arch/arm/mach-omap2/gpmc-nand.c    |  17 +-
>>  arch/arm/mach-omap2/gpmc-onenand.c |   4 +-
>>  arch/arm/mach-omap2/usb-tusb6010.c |   4 +-
>>  drivers/memory/Makefile            |   2 +
>>  drivers/memory/omap-gpmc.c         | 313 +++++++++++++++++++++++++++++--------
>>  include/linux/omap-gpmc.h          |   2 +-
>>  6 files changed, 265 insertions(+), 77 deletions(-)
>>
>> -- 
>> 2.3.0
>>

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