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Commit 36649425 authored by Nishanth Menon's avatar Nishanth Menon Committed by Kevin Hilman
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OMAP4: PM: TWL6030: fix uv to voltage for >0x39 



using 1.35V as a check is not correct, we know that beyond 0x39,
voltages are non linear - hence use the conversion iff uV greater
than that for 0x39. For example, with  709mV as the smps offset,
the max linear is actually 1.41V(0x39vsel)!

Signed-off-by: default avatarNishanth Menon <nm@ti.com>
parent 58e241f7

arch/arm/mach-omap2/omap_twl.c

+6 −1
Original line number Original line Diff line number Diff line
@@ -134,8 +134,13 @@ static u8 twl6030_uv_to_vsel(unsigned long uv) 
	 * hardcoding only for 1.35 V which is used for 1GH OPP for

	 * hardcoding only for 1.35 V which is used for 1GH OPP for

	 * OMAP4430.

	 * OMAP4430.

	 */

	 */

	if (uv > twl6030_vsel_to_uv(0x39)) {

		if (uv == 1350000)

		if (uv == 1350000)

			return 0x3A;

			return 0x3A;

		pr_err("%s:OUT OF RANGE! non mapped vsel for %ld Vs max %ld\n",

			__func__, uv, twl6030_vsel_to_uv(0x39));

		return 0x3A;

	}





	if (smps_offset & 0x8)

	if (smps_offset & 0x8)

		return DIV_ROUND_UP(uv - 709000, 12660) + 1;

		return DIV_ROUND_UP(uv - 709000, 12660) + 1;