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Date: Tue, 4 Jun 2013 08:57:02 -0400
From: Eduardo Valentin <eduardo.valentin@...com>
To: amit daniel kachhap <amit.daniel@...sung.com>
CC: Eduardo Valentin <eduardo.valentin@...com>,
<linux-pm@...r.kernel.org>, Zhang Rui <rui.zhang@...el.com>,
<linux-samsung-soc@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Kukjin Kim <kgene.kim@...sung.com>
Subject: Re: [PATCH V4 00/30] thermal: exynos: Add thermal driver for exynos5440
On 04-06-2013 00:55, amit daniel kachhap wrote:
> Hi Eduardo,
>
> On Wed, May 15, 2013 at 8:14 PM, Eduardo Valentin
> <eduardo.valentin@...com> wrote:
>> On 14-05-2013 05:58, Amit Daniel Kachhap wrote:
>>> Changes in V4:
>>> Almost all the changes in this version is as per suggestion from Eduardo.The
>>> major ones are listed below,
>>> * Added kconfig symbol ARCH_HAS_TMU which needs to be enabled by platform. With
>>> this change existing symbol EXYNOS_TMU_DATA is not needed.
>>
>> I was more thinking if we could have a single flag that we could use in
>> thermal drivers. Besides, my proposal for ARCH_HAS_BANDGAP is still not
>> merged yet.
>
> yes a single flag might be useful such as ARCH_HAS_THERMAL but this
> patch can work as an intermediate solution.
I think bandgap is a generic enough term IMO.
[1] - http://en.wikipedia.org/wiki/Bandgap_voltage_reference
[2] - http://en.wikipedia.org/wiki/Silicon_bandgap_temperature_sensor
>
> Thanks,
> Amit Daniel
>>
>>> * Movement of freq_clip_table from exynos_tmu.h to exynos_thermal_common.h is
>>> explained in the commit logs.
>>> * Wrote all register description documentation.
>>> * Split 5440 TMU support patch into controller change, configuration data and
>>> feature addition patches.
>>> * Remove all *LINUX_* in the header files.
>>> * Still regulator enable is kept optional but a TODO: comment is added to fix
>>> it later.
>>>
>>> Changes in V3:
>>> * Added proper dependency of different exynos thermal Kconfig symbols. Basically 3
>>> Kconfig can be enabled now and corresponds to tmu driver. exynos common part
>>> and exynos configuration data. This issue was raised by Rui Zhang.
>>>
>>> Changes in V2:
>>> * Separated SOC data from TMU driver. This is as per suggestion from Eduardo.
>>> * Merged the new file created for exynos5440 TMU controller with the existing
>>> TMU controller code.
>>> * Removed the DT parsing code as now the SOC specific data are cleanly put
>>> inside the data specific file.
>>> * Even the register definations/bitfields are treated as data as there is
>>> some variation across SOC's.
>>>
>>> This patchset adds TMU(Thermal management Unit) driver support for
>>> exynos5440 platform. There are 3 instances of the TMU controllers so
>>> necessary cleanup/re-structure is done to handle multiple thermal zone.
>>>
>>> Patch (exynos4: Add documentation for Exynos SoC thermal bindings) from
>>> Lukasz Majewski is already posted to mainline. Adding it here for completeness.
>>> (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg17817.html)
>>>
>>> Patch (thermal: exynos: Support thermal tripping ) from Jonghwan Choi is
>>> added here with some changes.
>>> (https://patchwork.kernel.org/patch/1668371/)
>>>
>>> Patch (thermal: exynos: Support for TMU regulator defined at device tree)
>>> is a repost of my earlier patch(https://patchwork-mail1.kernel.org/patch/2510771/)
>>> and adds regulator support.
>>>
>>> Patch (ARM: dts: Add device tree node for exynos5440 TMU controller) and
>>> patch (arm: exynos: enable ARCH_HAS_TMU) can be merged through exynos platform
>>> maintainer as this can cause merge conflict.
>>>
>>> All these patches are based on thermal maintainers git tree,
>>> git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git next.
>>>
>>> Amit Daniel Kachhap (29):
>>> thermal: exynos: Moving exynos thermal files into samsung directory
>>> thermal: exynos: Add ARCH_HAS_TMU config to know the supported soc's
>>> thermal: exynos: Remove CPU_THERMAL dependency for using TMU driver
>>> thermal: exynos: Bifurcate exynos thermal common and tmu controller
>>> code
>>> thermal: exynos: Rename exynos_thermal.c to exynos_tmu.c
>>> thermal: exynos: Move exynos_thermal.h from include/* to driver/*
>>> folder
>>> thermal: exynos: Bifurcate exynos tmu driver and configuration data
>>> thermal: exynos: Add missing definations and code cleanup
>>> thermal: exynos: Add extra entries in the tmu platform data
>>> thermal: exynos: Support thermal tripping
>>> thermal: exynos: Move register definitions from driver file to data
>>> file
>>> thermal: exynos: Fix to clear only the generated interrupts
>>> thermal: exynos: Add support for instance based register/unregister
>>> thermal: exynos: Modify private_data to appropriate name driver_data
>>> thermal: exynos: Return success even if no cooling data supplied
>>> thermal: exynos: Make the zone handling dependent on trip count
>>> thermal: exynos: Add support to handle many instances of TMU
>>> thermal: exynos: Add TMU features to check instead of using SOC type
>>> thermal: exynos: use device resource management infrastructure
>>> thermal: exynos: Add support to access common register for
>>> multistance
>>> thermal: exynos: Add support for exynos5440 TMU sensor.
>>> thermal: exynos: Fix to set the second point correction value
>>> properly
>>> thermal: exynos: Add thermal configuration data for exynos5440 TMU
>>> sensor
>>> thermal: exynos: Add a compensation logic on swapped e-fuse values
>>> thermal: exynos: Add hardware mode thermal calibration support
>>> Documentation: thermal: Explain the exynos thermal driver model
>>> thermal: exynos: Support for TMU regulator defined at device tree
>>> ARM: dts: Add device tree node for exynos5440 TMU controller
>>> arm: exynos: enable ARCH_HAS_TMU
>>>
>>> Lukasz Majewski (1):
>>> ARM: dts: thermal: exynos4: Add documentation for Exynos SoC thermal
>>> bindings
>>>
>>> .../devicetree/bindings/thermal/exynos-thermal.txt | 53 +
>>> Documentation/thermal/exynos_thermal | 43 +-
>>> arch/arm/boot/dts/exynos5440.dtsi | 30 +
>>> arch/arm/mach-exynos/Kconfig | 5 +
>>> drivers/thermal/Kconfig | 13 +-
>>> drivers/thermal/Makefile | 2 +-
>>> drivers/thermal/exynos_thermal.c | 1066 --------------------
>>> drivers/thermal/samsung/Kconfig | 21 +
>>> drivers/thermal/samsung/Makefile | 7 +
>>> drivers/thermal/samsung/exynos_thermal_common.c | 407 ++++++++
>>> drivers/thermal/samsung/exynos_thermal_common.h | 98 ++
>>> drivers/thermal/samsung/exynos_tmu.c | 741 ++++++++++++++
>>> drivers/thermal/samsung/exynos_tmu.h | 294 ++++++
>>> drivers/thermal/samsung/exynos_tmu_data.c | 225 ++++
>>> drivers/thermal/samsung/exynos_tmu_data.h | 155 +++
>>> include/linux/platform_data/exynos_thermal.h | 119 ---
>>> 16 files changed, 2076 insertions(+), 1203 deletions(-)
>>> create mode 100644 Documentation/devicetree/bindings/thermal/exynos-thermal.txt
>>> delete mode 100644 drivers/thermal/exynos_thermal.c
>>> create mode 100644 drivers/thermal/samsung/Kconfig
>>> create mode 100644 drivers/thermal/samsung/Makefile
>>> create mode 100644 drivers/thermal/samsung/exynos_thermal_common.c
>>> create mode 100644 drivers/thermal/samsung/exynos_thermal_common.h
>>> create mode 100644 drivers/thermal/samsung/exynos_tmu.c
>>> create mode 100644 drivers/thermal/samsung/exynos_tmu.h
>>> create mode 100644 drivers/thermal/samsung/exynos_tmu_data.c
>>> create mode 100644 drivers/thermal/samsung/exynos_tmu_data.h
>>> delete mode 100644 include/linux/platform_data/exynos_thermal.h
>>>
>>>
>>>
>>
>>
>
>
--
You have got to be excited about what you are doing. (L. Lamport)
Eduardo Valentin
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