Cleanup up imx5 idle code and enable imx5 low powe idle for imx53. Add common imx cpuidle initialization functionality and add a i.MX5 and i.MX6Q platform cpuidle implementation.
Based on v3.4 plus recently submitted/accepted MACHINE_INIT late_initcall patch series: http://www.spinics.net/lists/arm-kernel/msg171620.html and common clock patch series: http://comments.gmane.org/gmane.linux.ports.arm.kernel/161043 v5 changes: * rebase to v3.4 plus common clock patch series * various trivial changes/fixes from v4 submssion * Add separate pm_init patch for imx51 and imx53 v4 changes: * Added several imx5 idle cleanups to series. * Modified imx_io_p2v function to allow common imx5 AIPS2 bus virutal address * Added comment to tzic_wakeup_enable(). * Movied imx5 idle code from mm-imx5.c to pm-imx5.c. * Removed unnecessary time consuming code execution that ran on each idle instance. * modified imx5_pm_init to be a late_initcall * added late_initcall to all imx53 MACHINE_START entries. * enabled imx5 low power idle for imx53 * rebased cpuidle driver on top of imx5 cleanup changes. * modified cpuidle driver exit time to reflect removal of unnecessary code http://comments.gmane.org/gmane.linux.linaro.devel/11858 v3 changes: * removed file introduced in v1 no longer needed after v2 [per Shawn Guo] * re-ordered added #includes in alphabetical order [per Shawn Guo] * Remove if(!drv) check to allow handling by stack trace [per Sascha Hauer] * Added missing return value in error meesage [per Shawn Guo] * fixed (void *) casting problem pointed out Sasha Hauer. Used a different type of casting to properly give warning on improper casting: arm_pm_idle = (void (*)(void))imx5_idle; Used this casting instead of adding a dummy caller function because adding the dummy function appears to unnecessarily introduce the following additional operations: static void imx5_pm_idle(void) { a0: e1a0c00d mov ip, sp a4: e92dd800 push {fp, ip, lr, pc} a8: e24cb004 sub fp, ip, #4 imx5_idle(); ac: ebffffd3 bl 0 <imx5_idle> } b0: e89da800 ldm sp, {fp, sp, pc} http://permalink.gmane.org/gmane.linux.linaro.devel/11653 v2 changes: * Removed some unnecessary spaces [per Jess Juhl] * Added return value for an error message [per Sascha Hauer] * Reworked init scheme to use device tree late_initcall [per Sascha and Shawn] * Moved imx6q and imx5 cpuidle functionality to existing files. https://lkml.org/lkml/2012/5/1/363 v1 initial submission: https://lkml.org/lkml/2012/4/16/644 Robert Lee (7): ARM: imx: Modify IMX_IO_P2V macro ARM: imx: Add comments to tzic_enable_waker() ARM: imx: clean and consolidate imx5 suspend and idle code ARM: imx: Enable imx53 low power idle ARM: imx: Add common imx cpuidle init functionality. ARM: imx: Add imx5 cpuidle ARM: imx: Add imx6q cpuidle driver arch/arm/mach-imx/clk-imx51-imx53.c | 2 +- arch/arm/mach-imx/clock-mx51-mx53.c | 1 + arch/arm/mach-imx/imx53-dt.c | 1 + arch/arm/mach-imx/mach-imx6q.c | 19 +++++ arch/arm/mach-imx/mach-mx53_ard.c | 1 + arch/arm/mach-imx/mach-mx53_evk.c | 1 + arch/arm/mach-imx/mach-mx53_loco.c | 1 + arch/arm/mach-imx/mach-mx53_smd.c | 1 + arch/arm/mach-imx/mm-imx5.c | 26 ++----- arch/arm/mach-imx/pm-imx5.c | 111 ++++++++++++++++++++++------- arch/arm/plat-mxc/Makefile | 1 + arch/arm/plat-mxc/cpuidle.c | 80 +++++++++++++++++++++ arch/arm/plat-mxc/include/mach/common.h | 6 +- arch/arm/plat-mxc/include/mach/cpuidle.h | 22 ++++++ arch/arm/plat-mxc/include/mach/hardware.h | 25 ++++--- arch/arm/plat-mxc/tzic.c | 4 ++ 16 files changed, 243 insertions(+), 59 deletions(-) create mode 100644 arch/arm/plat-mxc/cpuidle.c create mode 100644 arch/arm/plat-mxc/include/mach/cpuidle.h -- 1.7.10 _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
