OMAP4 has module specific context lost registers which makes it now possible to have module level context loss count, instead of relying on the powerdomain level context count.
Add 2 private hwmod api's to update/clear the hwmod/module specific context lost counters/register. Signed-off-by: Rajendra Nayak <[email protected]> --- arch/arm/mach-omap2/omap_hwmod.c | 26 ++++++++++++++++++++++++++ arch/arm/plat-omap/include/plat/omap_hwmod.h | 2 ++ 2 files changed, 28 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index d713807..d7f9dd1 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1426,6 +1426,32 @@ static int _reset(struct omap_hwmod *oh) return ret; } +static void _update_context_lost(struct omap_hwmod *oh) +{ + if (oh->prcm.omap4.context_offs) + if (omap4_prminst_read_inst_reg( + oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.context_offs)) + oh->prcm.omap4.context_lost_counter++; +} + +static void _clear_context_lost(struct omap_hwmod *oh) +{ + u32 context_reg; + + if (oh->prcm.omap4.context_offs) { + context_reg = omap4_prminst_read_inst_reg( + oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.context_offs); + omap4_prminst_write_inst_reg(context_reg, + oh->clkdm->pwrdm.ptr->prcm_partition, + oh->clkdm->pwrdm.ptr->prcm_offs, + oh->prcm.omap4.context_offs); + } +} + /** * _enable - enable an omap_hwmod * @oh: struct omap_hwmod * diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index 5419f1a..540e424 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -363,12 +363,14 @@ struct omap_hwmod_omap2_prcm { * struct omap_hwmod_omap4_prcm - OMAP4-specific PRCM data * @clkctrl_reg: PRCM address of the clock control register * @rstctrl_reg: address of the XXX_RSTCTRL register located in the PRM + * context_lost_counter: Count of module level context lost * @submodule_wkdep_bit: bit shift of the WKDEP range */ struct omap_hwmod_omap4_prcm { u16 clkctrl_offs; u16 rstctrl_offs; u16 context_offs; + unsigned context_lost_counter; u8 submodule_wkdep_bit; u8 modulemode; }; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
