diff options
| author | Nishanth Menon <nm@ti.com> | 2012-09-25 19:33:33 +0300 |
|---|---|---|
| committer | Kevin Hilman <khilman@ti.com> | 2012-11-05 15:03:34 -0800 |
| commit | f2a0dfefec5fac797a5c6defa7e29db933a67a80 (patch) | |
| tree | 070d2d3befa2b0ad2be900e5fee478a7245cc3b9 /arch/arm/mach-omap2/voltage.h | |
| parent | 3d70f8c617a436c7146ecb81df2265b4626dfe89 (diff) | |
ARM: OMAP3+: PM: VP: use uV for max and min voltage limits
Every PMIC has it's own eccentricities, For example, one of the
PMIC has MSB set to 1 for a specific function - voltage enable!
using an hardcoded value specific for TWL when copied over to
such an implementation causes the system to crash as the MSB bit
was 0 and the voltage got disabled!.
Instead we use actual values and depend on the convertion routines
to abstract out the eccentricities of each PMIC.
With this, we can now move the voltages to a common location in
voltage.h as they are no longer dependent on PMICs and expect the
PMIC's conversion routines to set a cap if the voltage is out of
reach for the PMIC.
Reported-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/voltage.h')
| -rw-r--r-- | arch/arm/mach-omap2/voltage.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/voltage.h b/arch/arm/mach-omap2/voltage.h index 7283b7ed7de8..700469561b4d 100644 --- a/arch/arm/mach-omap2/voltage.h +++ b/arch/arm/mach-omap2/voltage.h @@ -92,6 +92,24 @@ struct voltagedomain { struct omap_volt_data *volt_data; }; +/* Min and max voltages from OMAP perspective */ +#define OMAP3430_VP1_VLIMITTO_VDDMIN 850000 +#define OMAP3430_VP1_VLIMITTO_VDDMAX 1425000 +#define OMAP3430_VP2_VLIMITTO_VDDMIN 900000 +#define OMAP3430_VP2_VLIMITTO_VDDMAX 1150000 + +#define OMAP3630_VP1_VLIMITTO_VDDMIN 900000 +#define OMAP3630_VP1_VLIMITTO_VDDMAX 1350000 +#define OMAP3630_VP2_VLIMITTO_VDDMIN 900000 +#define OMAP3630_VP2_VLIMITTO_VDDMAX 1200000 + +#define OMAP4_VP_MPU_VLIMITTO_VDDMIN 830000 +#define OMAP4_VP_MPU_VLIMITTO_VDDMAX 1410000 +#define OMAP4_VP_IVA_VLIMITTO_VDDMIN 830000 +#define OMAP4_VP_IVA_VLIMITTO_VDDMAX 1260000 +#define OMAP4_VP_CORE_VLIMITTO_VDDMIN 830000 +#define OMAP4_VP_CORE_VLIMITTO_VDDMAX 1200000 + /** * struct omap_voltdm_pmic - PMIC specific data required by voltage driver. * @slew_rate: PMIC slew rate (in uv/us) @@ -118,8 +136,8 @@ struct omap_voltdm_pmic { u8 vp_erroroffset; u8 vp_vstepmin; u8 vp_vstepmax; - u8 vp_vddmin; - u8 vp_vddmax; + u32 vp_vddmin; + u32 vp_vddmax; u8 vp_timeout_us; bool i2c_high_speed; u8 i2c_mcode; |