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OMAP: VP: Explicitly mask VPVOLTAGE field 

Reading the VPVOLTAGE field of PRM_VP_*_VOLTAGE registers currently
relies on a u32 -> u8 conversion to mask off the FORCEUPDATEWAIT field
in the upper bits.  Make this explicit using the mask symbol
already defined, added as a new field in struct omap_vp_common.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Todd Poynor 2011-05-27 19:15:59 -07:00 committed by Kevin Hilman
parent 0f01565a35
commit bea30ed65f
4 changed files with 7 additions and 1 deletions
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3
arch/arm/mach-omap2/vp.c
View File

@ -227,7 +227,8 @@ unsigned long omap_vp_get_curr_volt(struct voltagedomain *voltdm)
return 0;
}
curr_vsel = voltdm->read(vp->voltage);
curr_vsel = (voltdm->read(vp->voltage) & vp->common->vpvoltage_mask)
>> __ffs(vp->common->vpvoltage_mask);
if (!voltdm->pmic || !voltdm->pmic->vsel_to_uv) {
pr_warning("%s: PMIC function to convert vsel to voltage"

2
arch/arm/mach-omap2/vp.h
View File

@ -63,6 +63,7 @@ struct omap_vp_ops {
* @vlimitto_vddmin_shift: VDDMIN field shift in PRM_VP*_VLIMITTO reg
* @vlimitto_vddmax_shift: VDDMAX field shift in PRM_VP*_VLIMITTO reg
* @vlimitto_timeout_shift: TIMEOUT field shift in PRM_VP*_VLIMITTO reg
* @vpvoltage_mask: VPVOLTAGE field mask in PRM_VP*_VOLTAGE reg
*/
struct omap_vp_common {
u32 vpconfig_erroroffset_mask;
@ -79,6 +80,7 @@ struct omap_vp_common {
u8 vlimitto_vddmin_shift;
u8 vlimitto_vddmax_shift;
u8 vlimitto_timeout_shift;
u8 vpvoltage_mask;
const struct omap_vp_ops *ops;
};

2
arch/arm/mach-omap2/vp3xxx_data.c
View File

@ -51,6 +51,8 @@ static const struct omap_vp_common omap3_vp_common = {
.vlimitto_vddmin_shift = OMAP3430_VDDMIN_SHIFT,
.vlimitto_vddmax_shift = OMAP3430_VDDMAX_SHIFT,
.vlimitto_timeout_shift = OMAP3430_TIMEOUT_SHIFT,
.vpvoltage_mask = OMAP3430_VPVOLTAGE_MASK,
.ops = &omap3_vp_ops,
};

1
arch/arm/mach-omap2/vp44xx_data.c
View File

@ -51,6 +51,7 @@ static const struct omap_vp_common omap4_vp_common = {
.vlimitto_vddmin_shift = OMAP4430_VDDMIN_SHIFT,
.vlimitto_vddmax_shift = OMAP4430_VDDMAX_SHIFT,
.vlimitto_timeout_shift = OMAP4430_TIMEOUT_SHIFT,
.vpvoltage_mask = OMAP4430_VPVOLTAGE_MASK,
.ops = &omap4_vp_ops,
};