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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-09 14:20:39 -0800 | 
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-09 14:20:39 -0800 | 
| commit | 57e964e1ae9bd4f699ae1074430bcf81a9a11377 (patch) | |
| tree | 8c1fc5199e18a55cece4aa72bbaf2ca909bd1453 /arch/arm/mach-omap2/omap_hwmod.c | |
| parent | 4dee6b64ee7cfef94b47733c6d9fef07f8051c7c (diff) | |
| parent | 39fbc76272225fb991ffdfac1e08974506cfa3eb (diff) | |
| download | olio-linux-3.10-57e964e1ae9bd4f699ae1074430bcf81a9a11377.tar.xz olio-linux-3.10-57e964e1ae9bd4f699ae1074430bcf81a9a11377.zip  | |
Merge tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Non-critical bug fixes
Simple bug fixes that were not considered important enough for inclusion
into 3.2.
* tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  MAINTAINERS: update pxa and mmp
  ARM: pxa: Include linux/export.h in balloon3.c
  ARM: OMAP4: clock: Add CPU local timer clock node
  ARM: OMAP4: hwmod: Don't wait for the idle status if modulemode is not supported
  ARM: OMAP: AM3517/3505: fix crash on boot due to incorrect voltagedomain data
  ARM: OMAP: hwmod data: fix the panic on Nokia RM-680 during boot
  ARM: OMAP2+: DMA: Workaround for invalid destination position
  ARM: OMAP2+: DMA: Workaround for invalid source position
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 98 | 
1 files changed, 49 insertions, 49 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 529142aff76..373d1f15c4e 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -706,27 +706,65 @@ static void _enable_module(struct omap_hwmod *oh)  }  /** - * _disable_module - enable CLKCTRL modulemode on OMAP4 + * _omap4_wait_target_disable - wait for a module to be disabled on OMAP4 + * @oh: struct omap_hwmod * + * + * Wait for a module @oh to enter slave idle.  Returns 0 if the module + * does not have an IDLEST bit or if the module successfully enters + * slave idle; otherwise, pass along the return value of the + * appropriate *_cm*_wait_module_idle() function. + */ +static int _omap4_wait_target_disable(struct omap_hwmod *oh) +{ +	if (!cpu_is_omap44xx()) +		return 0; + +	if (!oh) +		return -EINVAL; + +	if (oh->_int_flags & _HWMOD_NO_MPU_PORT) +		return 0; + +	if (oh->flags & HWMOD_NO_IDLEST) +		return 0; + +	return omap4_cminst_wait_module_idle(oh->clkdm->prcm_partition, +					     oh->clkdm->cm_inst, +					     oh->clkdm->clkdm_offs, +					     oh->prcm.omap4.clkctrl_offs); +} + +/** + * _omap4_disable_module - enable CLKCTRL modulemode on OMAP4   * @oh: struct omap_hwmod *   *   * Disable the PRCM module mode related to the hwmod @oh. - * No return value. + * Return EINVAL if the modulemode is not supported and 0 in case of success.   */ -static void _disable_module(struct omap_hwmod *oh) +static int _omap4_disable_module(struct omap_hwmod *oh)  { +	int v; +  	/* The module mode does not exist prior OMAP4 */ -	if (cpu_is_omap24xx() || cpu_is_omap34xx()) -		return; +	if (!cpu_is_omap44xx()) +		return -EINVAL;  	if (!oh->clkdm || !oh->prcm.omap4.modulemode) -		return; +		return -EINVAL; -	pr_debug("omap_hwmod: %s: _disable_module\n", oh->name); +	pr_debug("omap_hwmod: %s: %s\n", oh->name, __func__);  	omap4_cminst_module_disable(oh->clkdm->prcm_partition,  				    oh->clkdm->cm_inst,  				    oh->clkdm->clkdm_offs,  				    oh->prcm.omap4.clkctrl_offs); + +	v = _omap4_wait_target_disable(oh); +	if (v) +		pr_warn("omap_hwmod: %s: _wait_target_disable failed\n", +			oh->name); + +	return 0;  }  /** @@ -1153,36 +1191,6 @@ static int _wait_target_ready(struct omap_hwmod *oh)  }  /** - * _wait_target_disable - wait for a module to be disabled - * @oh: struct omap_hwmod * - * - * Wait for a module @oh to enter slave idle.  Returns 0 if the module - * does not have an IDLEST bit or if the module successfully enters - * slave idle; otherwise, pass along the return value of the - * appropriate *_cm*_wait_module_idle() function. - */ -static int _wait_target_disable(struct omap_hwmod *oh) -{ -	/* TODO: For now just handle OMAP4+ */ -	if (cpu_is_omap24xx() || cpu_is_omap34xx()) -		return 0; - -	if (!oh) -		return -EINVAL; - -	if (oh->_int_flags & _HWMOD_NO_MPU_PORT) -		return 0; - -	if (oh->flags & HWMOD_NO_IDLEST) -		return 0; - -	return omap4_cminst_wait_module_idle(oh->clkdm->prcm_partition, -					     oh->clkdm->cm_inst, -					     oh->clkdm->clkdm_offs, -					     oh->prcm.omap4.clkctrl_offs); -} - -/**   * _lookup_hardreset - fill register bit info for this hwmod/reset line   * @oh: struct omap_hwmod *   * @name: name of the reset line in the context of this hwmod @@ -1524,8 +1532,6 @@ static int _enable(struct omap_hwmod *oh)   */  static int _idle(struct omap_hwmod *oh)  { -	int ret; -  	pr_debug("omap_hwmod: %s: idling\n", oh->name);  	if (oh->_state != _HWMOD_STATE_ENABLED) { @@ -1537,11 +1543,9 @@ static int _idle(struct omap_hwmod *oh)  	if (oh->class->sysc)  		_idle_sysc(oh);  	_del_initiator_dep(oh, mpu_oh); -	_disable_module(oh); -	ret = _wait_target_disable(oh); -	if (ret) -		pr_warn("omap_hwmod: %s: _wait_target_disable failed\n", -			oh->name); + +	_omap4_disable_module(oh); +  	/*  	 * The module must be in idle mode before disabling any parents  	 * clocks. Otherwise, the parent clock might be disabled before @@ -1642,11 +1646,7 @@ static int _shutdown(struct omap_hwmod *oh)  	if (oh->_state == _HWMOD_STATE_ENABLED) {  		_del_initiator_dep(oh, mpu_oh);  		/* XXX what about the other system initiators here? dma, dsp */ -		_disable_module(oh); -		ret = _wait_target_disable(oh); -		if (ret) -			pr_warn("omap_hwmod: %s: _wait_target_disable failed\n", -				oh->name); +		_omap4_disable_module(oh);  		_disable_clocks(oh);  		if (oh->clkdm)  			clkdm_hwmod_disable(oh->clkdm, oh);  |