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* [PATCH 00/16] i2c: drop class based instantiaion for selected drivers
@ 2014-07-10 11:46 ` Wolfram Sang
  0 siblings, 0 replies; 75+ messages in thread
From: Wolfram Sang @ 2014-07-10 11:46 UTC (permalink / raw)
  To: linux-i2c-u79uwXL29TY76Z2rM5mHXA
  Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Wolfram Sang,
	adi-buildroot-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f,
	davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	linux-omap-u79uwXL29TY76Z2rM5mHXA,
	linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA,
	linux-tegra-u79uwXL29TY76Z2rM5mHXA

Some drivers were flagged to remove class based instantiation soon to improve
boot-up time. Originally, I was planning for a longer deprecation time so users
could switch over to some other kind of instantiation. However, the demand for
the speed up is high enough and class based instantiation is used rarely, so
the removal takes place now. To make up for the deprecation time, another
warning is added to the i2c core pointing out that the behaviour has now
changed:

+	/* Warn that the adapter lost class based instantiation */
+	if (adapter->class == I2C_CLASS_DEPRECATED) {
+		dev_dbg(&adapter->dev,
+			"This adapter dropped support for I2C classes and "
+			"won't auto-detect %s devices anymore. If you need it, check "
+			"'Documentation/i2c/instantiating-devices' for alternatives.\n",
+			driver->driver.name);
+		return 0;
+	}

A branch can be found here (with two other cleanups -> driver removals):
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/deprecate_stuff

I hope this meets all the needs. Please comment, ack, test...

Thanks,

   Wolfram


Wolfram Sang (16):
  i2c: add debug info when class instantiation was dropped
  i2c: i2c-at91: Drop class based scanning to improve bootup time
  i2c: i2c-bcm2835: Drop class based scanning to improve bootup time
  i2c: i2c-bfin-twi: Drop class based scanning to improve bootup time
  i2c: i2c-davinci: Drop class based scanning to improve bootup time
  i2c: i2c-designware-platdrv: Drop class based scanning to improve
    bootup time
  i2c: i2c-mv64xxx: Drop class based scanning to improve bootup time
  i2c: i2c-nomadik: Drop class based scanning to improve bootup time
  i2c: i2c-ocores: Drop class based scanning to improve bootup time
  i2c: i2c-omap: Drop class based scanning to improve bootup time
  i2c: i2c-rcar: Drop class based scanning to improve bootup time
  i2c: i2c-s3c2410: Drop class based scanning to improve bootup time
  i2c: i2c-sirf: Drop class based scanning to improve bootup time
  i2c: i2c-stu300: Drop class based scanning to improve bootup time
  i2c: i2c-tegra: Drop class based scanning to improve bootup time
  i2c: i2c-xiic: Drop class based scanning to improve bootup time

 drivers/i2c/busses/i2c-at91.c               |  2 +-
 drivers/i2c/busses/i2c-bcm2835.c            |  2 +-
 drivers/i2c/busses/i2c-bfin-twi.c           |  2 +-
 drivers/i2c/busses/i2c-davinci.c            |  2 +-
 drivers/i2c/busses/i2c-designware-platdrv.c |  2 +-
 drivers/i2c/busses/i2c-mv64xxx.c            |  2 +-
 drivers/i2c/busses/i2c-nomadik.c            |  8 ++++----
 drivers/i2c/busses/i2c-ocores.c             | 12 ++++++------
 drivers/i2c/busses/i2c-omap.c               |  2 +-
 drivers/i2c/busses/i2c-rcar.c               | 14 +++++++-------
 drivers/i2c/busses/i2c-s3c2410.c            |  8 ++++----
 drivers/i2c/busses/i2c-sirf.c               |  2 +-
 drivers/i2c/busses/i2c-stu300.c             |  2 +-
 drivers/i2c/busses/i2c-tegra.c              |  2 +-
 drivers/i2c/busses/i2c-xiic.c               | 12 ++++++------
 drivers/i2c/i2c-core.c                      | 10 ++++++++++
 16 files changed, 47 insertions(+), 37 deletions(-)

-- 
2.0.0

^ permalink raw reply	[flat|nested] 75+ messages in thread

end of thread, other threads:[~2014-07-21 13:38 UTC | newest]

Thread overview: 75+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-07-10 11:46 [PATCH 00/16] i2c: drop class based instantiaion for selected drivers Wolfram Sang
2014-07-10 11:46 ` Wolfram Sang
2014-07-10 11:46 ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 01/16] i2c: add debug info when class instantiation was dropped Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 02/16] i2c: i2c-at91: Drop class based scanning to improve bootup time Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-17 15:27   ` Ludovic Desroches
2014-07-17 15:27     ` Ludovic Desroches
2014-07-17 15:27     ` Ludovic Desroches
2014-07-10 11:46 ` [PATCH 03/16] i2c: i2c-bcm2835: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 04/16] i2c: i2c-bfin-twi: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 05/16] i2c: i2c-davinci: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 06/16] i2c: i2c-designware-platdrv: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 07/16] i2c: i2c-mv64xxx: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-21 13:33   ` Andrew Lunn
2014-07-21 13:33     ` Andrew Lunn
2014-07-10 11:46 ` [PATCH 08/16] i2c: i2c-nomadik: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 14:35   ` Linus Walleij
2014-07-10 14:35     ` Linus Walleij
2014-07-10 14:35     ` Linus Walleij
2014-07-10 11:46 ` [PATCH 09/16] i2c: i2c-ocores: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 14:32   ` Peter Korsgaard
2014-07-10 14:32     ` Peter Korsgaard
2014-07-10 14:32     ` Peter Korsgaard
2014-07-10 11:46 ` [PATCH 10/16] i2c: i2c-omap: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 11/16] i2c: i2c-rcar: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 12/16] i2c: i2c-s3c2410: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-11  5:59   ` Sachin Kamat
2014-07-11  5:59     ` Sachin Kamat
2014-07-11  5:59     ` Sachin Kamat
2014-07-10 11:46 ` [PATCH 13/16] i2c: i2c-sirf: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 11:46 ` [PATCH 14/16] i2c: i2c-stu300: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
2014-07-10 14:35   ` Linus Walleij
2014-07-10 14:35     ` Linus Walleij
2014-07-10 14:35     ` Linus Walleij
2014-07-10 11:46 ` [PATCH 15/16] i2c: i2c-tegra: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
     [not found]   ` <1404992799-3705-16-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
2014-07-10 12:34     ` Mikko Perttunen
2014-07-10 12:34       ` Mikko Perttunen
2014-07-10 12:34       ` Mikko Perttunen
2014-07-10 13:43     ` Thierry Reding
2014-07-10 13:43       ` Thierry Reding
2014-07-10 13:43       ` Thierry Reding
2014-07-10 11:46 ` [PATCH 16/16] i2c: i2c-xiic: " Wolfram Sang
2014-07-10 11:46   ` Wolfram Sang
     [not found] ` <1404992799-3705-1-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
2014-07-10 12:38   ` [PATCH 00/16] i2c: drop class based instantiaion for selected drivers Lothar Waßmann
2014-07-10 12:38     ` Lothar Waßmann
2014-07-10 12:38     ` Lothar Waßmann
     [not found]     ` <20140710143837.558c1d07-VjFSrY7JcPWvSplVBqRQBQ@public.gmane.org>
2014-07-10 13:13       ` Wolfram Sang
2014-07-10 13:13         ` Wolfram Sang
2014-07-10 13:13         ` Wolfram Sang
2014-07-16 17:46 ` Wolfram Sang
2014-07-16 17:46   ` Wolfram Sang
2014-07-16 17:46   ` Wolfram Sang

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