From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grygorii Strashko Subject: [PATCH 0/2] OMAP: fix boot sequence Date: Tue, 23 Apr 2013 16:19:08 +0300 Message-ID: <1366723151-23209-1-git-send-email-grygorii.strashko@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tony Lindgren , Samuel Ortiz Cc: Grygorii Strashko , Wolfram Sang , "Ben Dooks (embedded platforms)" , Santosh Shilimkar , linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-i2c@vger.kernel.org Hi There are two public discussions now related to OMAP boot and drivers initialization issues: "Multiple issues with omap4 panda es in linux next" http://www.spinics.net/lists/linux-omap/msg90241.html "[BUG] omap: mfd/regulator: twl/core: init order" http://www.spinics.net/lists/linux-omap/msg89980.html In both cases there are pinctrl-single/I2C/MFD/Regulators initailization issue: - regulators are not initialized because of twl, - twl is not initialized because of I2C, - I2C is not initialized because of pinctrl-single, - pinctrl-single is initialized at mudule/device init time. So, most everything will be shifted at late_initcall time. This may cause boot delay (more over, it can broken initialization of drivers which are not ready to use deferred probe mechanism yet, for example DSS). Introduced pathes shift I2C and TWL iniialization to module/device init layer instead of subsys init layer where initialization dependencies resolved indirectly in drivers/Makefile now. Grygorii Strashko (2): i2c: omap: convert to module_platform_driver() mfd: twl-core: convert to module_i2c_driver() drivers/i2c/busses/i2c-omap.c | 14 +------------- drivers/mfd/twl-core.c | 12 +----------- 2 files changed, 2 insertions(+), 24 deletions(-) Regards, -grygorii Cc: Wolfram Sang Cc: "Ben Dooks (embedded platforms)" Cc: Santosh Shilimkar Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org -- 1.7.9.5