diff options
Diffstat (limited to 'arch/arm/mach-omap2/vp.c')
-rw-r--r-- | arch/arm/mach-omap2/vp.c | 70 |
1 files changed, 31 insertions, 39 deletions
diff --git a/arch/arm/mach-omap2/vp.c b/arch/arm/mach-omap2/vp.c index f68a6db27111..e7d38f67db87 100644 --- a/arch/arm/mach-omap2/vp.c +++ b/arch/arm/mach-omap2/vp.c @@ -49,8 +49,8 @@ static void vp_latch_vsel(struct voltagedomain *voltdm) void __init omap_vp_init(struct voltagedomain *voltdm) { struct omap_vp_instance *vp = voltdm->vp; - struct omap_vdd_info *vdd = voltdm->vdd; - u32 vp_val, sys_clk_rate, timeout_val, waittime; + u32 val, sys_clk_rate, timeout, waittime; + u32 vddmin, vddmax, vstepmin, vstepmax; if (!voltdm->read || !voltdm->write) { pr_err("%s: No read/write API for accessing vdd_%s regs\n", @@ -63,47 +63,39 @@ void __init omap_vp_init(struct voltagedomain *voltdm) /* Divide to avoid overflow */ sys_clk_rate = voltdm->sys_clk.rate / 1000; - vdd->vp_rt_data.vpconfig_erroroffset = - (voltdm->pmic->vp_erroroffset << - __ffs(voltdm->vp->common->vpconfig_erroroffset_mask)); - - timeout_val = (sys_clk_rate * voltdm->pmic->vp_timeout_us) / 1000; - vdd->vp_rt_data.vlimitto_timeout = timeout_val; - vdd->vp_rt_data.vlimitto_vddmin = voltdm->pmic->vp_vddmin; - vdd->vp_rt_data.vlimitto_vddmax = voltdm->pmic->vp_vddmax; + timeout = (sys_clk_rate * voltdm->pmic->vp_timeout_us) / 1000; + vddmin = voltdm->pmic->vp_vddmin; + vddmax = voltdm->pmic->vp_vddmax; waittime = ((voltdm->pmic->step_size / voltdm->pmic->slew_rate) * sys_clk_rate) / 1000; - vdd->vp_rt_data.vstepmin_smpswaittimemin = waittime; - vdd->vp_rt_data.vstepmax_smpswaittimemax = waittime; - vdd->vp_rt_data.vstepmin_stepmin = voltdm->pmic->vp_vstepmin; - vdd->vp_rt_data.vstepmax_stepmax = voltdm->pmic->vp_vstepmax; - - vp_val = vdd->vp_rt_data.vpconfig_erroroffset | - (vdd->vp_rt_data.vpconfig_errorgain << - __ffs(vp->common->vpconfig_errorgain_mask)) | + vstepmin = voltdm->pmic->vp_vstepmin; + vstepmax = voltdm->pmic->vp_vstepmax; + + /* + * VP_CONFIG: error gain is not set here, it will be updated + * on each scale, based on OPP. + */ + val = (voltdm->pmic->vp_erroroffset << + __ffs(voltdm->vp->common->vpconfig_erroroffset_mask)) | vp->common->vpconfig_timeouten; - voltdm->write(vp_val, vp->vpconfig); - - vp_val = ((vdd->vp_rt_data.vstepmin_smpswaittimemin << - vp->common->vstepmin_smpswaittimemin_shift) | - (vdd->vp_rt_data.vstepmin_stepmin << - vp->common->vstepmin_stepmin_shift)); - voltdm->write(vp_val, vp->vstepmin); - - vp_val = ((vdd->vp_rt_data.vstepmax_smpswaittimemax << - vp->common->vstepmax_smpswaittimemax_shift) | - (vdd->vp_rt_data.vstepmax_stepmax << - vp->common->vstepmax_stepmax_shift)); - voltdm->write(vp_val, vp->vstepmax); - - vp_val = ((vdd->vp_rt_data.vlimitto_vddmax << - vp->common->vlimitto_vddmax_shift) | - (vdd->vp_rt_data.vlimitto_vddmin << - vp->common->vlimitto_vddmin_shift) | - (vdd->vp_rt_data.vlimitto_timeout << - vp->common->vlimitto_timeout_shift)); - voltdm->write(vp_val, vp->vlimitto); + voltdm->write(val, vp->vpconfig); + + /* VSTEPMIN */ + val = (waittime << vp->common->vstepmin_smpswaittimemin_shift) | + (vstepmin << vp->common->vstepmin_stepmin_shift); + voltdm->write(val, vp->vstepmin); + + /* VSTEPMAX */ + val = (vstepmax << vp->common->vstepmax_stepmax_shift) | + (waittime << vp->common->vstepmax_smpswaittimemax_shift); + voltdm->write(val, vp->vstepmax); + + /* VLIMITTO */ + val = (vddmax << vp->common->vlimitto_vddmax_shift) | + (vddmin << vp->common->vlimitto_vddmin_shift) | + (timeout << vp->common->vlimitto_timeout_shift); + voltdm->write(val, vp->vlimitto); } int omap_vp_update_errorgain(struct voltagedomain *voltdm, |