static u8 twl6030_uv_to_vsel(unsigned long uv) { /* * In TWL6030 depending on the value of SMPS_OFFSET * efuse register the voltage range supported in * standard mode can be either between 0.6V - 1.3V or * 0.7V - 1.4V. In TWL6030 ES1.0 SMPS_OFFSET efuse * is programmed to all 0's where as starting from * TWL6030 ES1.1 the efuse is programmed to 1 */ if (!is_offset_valid) { twl_i2c_read_u8(TWL6030_MODULE_ID0, &smps_offset, REG_SMPS_OFFSET); is_offset_valid = true; } if (!uv) return 0x00; /* * There is no specific formula for voltage to vsel * conversion above 1.3V. There are special hardcoded * values for voltages above 1.3V. Currently we are * hardcoding only for 1.35 V which is used for 1GH OPP for * OMAP4430. */ if (uv > twl6030_vsel_to_uv(0x39)) { if (uv == 1350000) 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) return DIV_ROUND_UP(uv - 709000, 12660) + 1; else return DIV_ROUND_UP(uv - 607700, 12660) + 1; }
static u8 twl6030_uv_to_vsel(unsigned long uv) { /* * In TWL6030 depending on the value of SMPS_OFFSET * efuse register the voltage range supported in * standard mode can be either between 0.6V - 1.3V or * 0.7V - 1.4V. We should know the current state of * SMPS_OFFSET before performing any conversations. */ if (SMPS_OFFSET_UNINITIALIZED == smps_offset_state) pr_err("%s: smps offset is not initialized\n", __func__); /* Special case for 0 voltage */ if (!uv) return 0x00; /* * There is no specific formula for voltage to vsel * conversion above 1.3V. There are special hardcoded * values for voltages above 1.3V. Currently we are * hardcoding only for 1.35 V which is used for 1GH OPP for * OMAP4430. */ if (uv > twl6030_vsel_to_uv(0x39)) { if (uv == 1350000) 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 0x39; } if (SMPS_OFFSET_ENABLED == smps_offset_state) return DIV_ROUND_UP(uv - 709000, 12660) + 1; else return DIV_ROUND_UP(uv - 607700, 12660) + 1; }