diff --git a/i2c-vr/isl69269/isl69269.cpp b/i2c-vr/isl69269/isl69269.cpp
new file mode 100644
index 0000000..dc9cd9e
--- /dev/null
+++ b/i2c-vr/isl69269/isl69269.cpp
@@ -0,0 +1,636 @@
+#include "isl69269.hpp"
+
+#include "common/include/i2c/i2c.hpp"
+
+#include <phosphor-logging/lg2.hpp>
+
+#include <string>
+
+PHOSPHOR_LOG2_USING;
+
+namespace phosphor::software::VR
+{
+
+constexpr uint8_t regProgStatus = 0x7E;
+constexpr uint8_t regHexModeCFG0 = 0x87;
+constexpr uint8_t regCRC = 0x94;
+constexpr uint8_t regHexModeCFG1 = 0xBD;
+constexpr uint8_t regDMAData = 0xC5;
+constexpr uint8_t regDMAAddr = 0xC7;
+constexpr uint8_t regRestoreCfg = 0xF2;
+
+constexpr uint8_t regRemainginWrites = 0x35;
+
+constexpr uint8_t gen3SWRevMin = 0x06;
+constexpr uint8_t deviceIdLength = 4;
+
+constexpr uint8_t gen3Legacy = 1;
+constexpr uint8_t gen3Production = 2;
+
+constexpr uint16_t cfgId = 7;
+constexpr uint16_t gen3FileHead = 5;
+constexpr uint16_t gen3LegacyCRC = 276 - gen3FileHead;
+constexpr uint16_t gen3ProductionCRC = 290 - gen3FileHead;
+constexpr uint8_t checksumLen = 4;
+constexpr uint8_t deviceRevisionLen = 4;
+
+// Common pmBus Command codes
+constexpr uint8_t pmBusDeviceId = 0xAD;
+constexpr uint8_t pmBusDeviceRev = 0xAE;
+
+// Config file constants
+constexpr char recordTypeData = 0x00;
+constexpr char recordTypeHeader = 0x49;
+
+constexpr uint8_t defaultBufferSize = 16;
+constexpr uint8_t programBufferSize = 32;
+
+constexpr uint8_t zeroByteLen = 0;
+constexpr uint8_t oneByteLen = 1;
+constexpr uint8_t threeByteLen = 3;
+constexpr uint8_t fourByteLen = 4;
+
+ISL69269::ISL69269(sdbusplus::async::context& ctx, uint16_t bus,
+                   uint16_t address) :
+    VoltageRegulator(ctx), i2cInterface(phosphor::i2c::I2C(bus, address))
+{}
+
+inline void shiftLeftFromLSB(const uint8_t* data, uint32_t* result)
+{
+    *result = (static_cast<uint32_t>(data[3]) << 24) |
+              (static_cast<uint32_t>(data[2]) << 16) |
+              (static_cast<uint32_t>(data[1]) << 8) |
+              (static_cast<uint32_t>(data[0]));
+}
+
+inline void shiftLeftFromMSB(const uint8_t* data, uint32_t* result)
+{
+    *result = (static_cast<uint32_t>(data[0]) << 24) |
+              (static_cast<uint32_t>(data[1]) << 16) |
+              (static_cast<uint32_t>(data[2]) << 8) |
+              (static_cast<uint32_t>(data[3]));
+}
+
+static uint8_t calcCRC8(const uint8_t* data, uint8_t len)
+{
+    uint8_t crc = 0x00;
+    int i = 0;
+    int b = 0;
+
+    for (i = 0; i < len; i++)
+    {
+        crc ^= data[i];
+        for (b = 0; b < 8; b++)
+        {
+            if (crc & 0x80)
+            {
+                crc = (crc << 1) ^ 0x07; // polynomial 0x07
+            }
+            else
+            {
+                crc = (crc << 1);
+            }
+        }
+    }
+
+    return crc;
+}
+
+sdbusplus::async::task<bool> ISL69269::dmaReadWrite(uint8_t* reg, uint8_t* resp)
+{
+    uint8_t tbuf[defaultBufferSize] = {0};
+    uint8_t tlen = threeByteLen;
+    uint8_t rbuf[defaultBufferSize] = {0};
+    uint8_t rlen = zeroByteLen;
+
+    tbuf[0] = regDMAAddr;
+    std::memcpy(&tbuf[1], reg, 2);
+
+    // NOLINTBEGIN(clang-analyzer-core.uninitialized.Branch)
+    if (!(co_await i2cInterface.sendReceive(tbuf, tlen, rbuf, rlen)))
+    // NOLINTEND(clang-analyzer-core.uninitialized.Branch)
+    {
+        error("dmaReadWrite failed with {CMD}", "CMD",
+              std::string("_REG_DMA_ADDR"));
+        co_return false;
+    }
+
+    tlen = oneByteLen;
+    rlen = fourByteLen;
+
+    tbuf[0] = regDMAData;
+    if (!(co_await i2cInterface.sendReceive(tbuf, tlen, resp, rlen)))
+    {
+        error("dmaReadWrite failed with {CMD}", "CMD",
+              std::string("_REG_DMA_DATA"));
+        co_return false;
+    }
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::getRemainingWrites(uint8_t* remain)
+{
+    uint8_t tbuf[defaultBufferSize] = {0};
+    uint8_t rbuf[defaultBufferSize] = {0};
+
+    tbuf[0] = regRemainginWrites;
+    tbuf[1] = 0x00;
+    if (!(co_await dmaReadWrite(tbuf, rbuf)))
+    {
+        error("getRemainingWrites failed");
+        co_return false;
+    }
+
+    *remain = rbuf[0];
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::getHexMode(uint8_t* mode)
+{
+    uint8_t tbuf[defaultBufferSize] = {0};
+    uint8_t rbuf[defaultBufferSize] = {0};
+
+    tbuf[0] = regHexModeCFG0;
+    tbuf[1] = regHexModeCFG1;
+    if (!(co_await dmaReadWrite(tbuf, rbuf)))
+    {
+        error("getHexMode failed");
+        co_return false;
+    }
+
+    *mode = (rbuf[0] == 0) ? gen3Legacy : gen3Production;
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::getDeviceId(uint32_t* deviceId)
+{
+    uint8_t tbuf[defaultBufferSize] = {0};
+    uint8_t tLen = oneByteLen;
+    uint8_t rbuf[defaultBufferSize] = {0};
+    uint8_t rLen = deviceIdLength + 1;
+
+    tbuf[0] = pmBusDeviceId;
+
+    if (!(co_await i2cInterface.sendReceive(tbuf, tLen, rbuf, rLen)))
+    {
+        error("getDeviceId failed");
+        co_return false;
+    }
+
+    std::memcpy(deviceId, &rbuf[1], deviceIdLength);
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::getDeviceRevision(uint32_t* revision)
+{
+    uint8_t tbuf[defaultBufferSize] = {0};
+    uint8_t tlen = oneByteLen;
+    uint8_t rbuf[defaultBufferSize] = {0};
+    uint8_t rlen = deviceRevisionLen + 1;
+
+    tbuf[0] = pmBusDeviceRev;
+    if (!(co_await i2cInterface.sendReceive(tbuf, tlen, rbuf, rlen)))
+    {
+        error("getDeviceRevision failed with sendreceive");
+        co_return false;
+    }
+
+    if (mode == gen3Legacy)
+    {
+        std::memcpy(revision, &rbuf[1], deviceRevisionLen);
+    }
+    else
+    {
+        shiftLeftFromLSB(rbuf + 1, revision);
+    }
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::getCRC(uint32_t* sum)
+{
+    uint8_t tbuf[defaultBufferSize] = {0};
+    uint8_t rbuf[defaultBufferSize] = {0};
+
+    tbuf[0] = regCRC;
+    if (!(co_await dmaReadWrite(tbuf, rbuf)))
+    {
+        error("getCRC failed");
+        co_return false;
+    }
+    std::memcpy(sum, rbuf, sizeof(uint32_t));
+
+    co_return true;
+}
+
+bool ISL69269::parseImage(const uint8_t* image, size_t imageSize)
+{
+    size_t nextLineStart = 0;
+    int dcnt = 0;
+
+    for (size_t i = 0; i < imageSize; i++)
+    {
+        if (image[i] == '\n') // We have a hex file, so we check new line.
+        {
+            char line[40];
+            char xdigit[8] = {0};
+            uint8_t sepLine[32] = {0};
+
+            size_t lineLen = i - nextLineStart;
+            std::memcpy(line, image + nextLineStart, lineLen);
+            int k = 0;
+            size_t j = 0;
+            for (k = 0, j = 0; j < lineLen; k++, j += 2)
+            {
+                // Convert two chars into a array of single values
+                std::memcpy(xdigit, &line[j], 2);
+                sepLine[k] = (uint8_t)std::strtol(xdigit, NULL, 16);
+            }
+
+            if (sepLine[0] == recordTypeHeader)
+            {
+                if (sepLine[3] == pmBusDeviceId)
+                {
+                    shiftLeftFromMSB(sepLine + 4, &configuration.devIdExp);
+                    debug("device id from configuration: {ID}", "ID", lg2::hex,
+                          configuration.devIdExp);
+                }
+                else if (sepLine[3] == pmBusDeviceRev)
+                {
+                    shiftLeftFromMSB(sepLine + 4, &configuration.devRevExp);
+                    debug("device revision from config: {ID}", "ID", lg2::hex,
+                          configuration.devRevExp);
+
+                    // According to programing guide:
+                    // If legacy hex file
+                    // MSB device revision == 0x00 | 0x01
+                    if (configuration.devRevExp < (gen3SWRevMin << 24))
+                    {
+                        debug("Legacy hex file format recognized");
+                        configuration.mode = gen3Legacy;
+                    }
+                    else
+                    {
+                        debug("Production hex file format recognized");
+                        configuration.mode = gen3Production;
+                    }
+                }
+            }
+            else if (sepLine[0] == recordTypeData)
+            {
+                if (((sepLine[1] + 2) >= (uint8_t)sizeof(sepLine)))
+                {
+                    dcnt = 0;
+                    break;
+                }
+                // According to documentation:
+                // 00 05 C2 E7 08 00 F6
+                //  |  |  |  |  |  |  |
+                //  |  |  |  |  |  |  - Packet Error Code (CRC8)
+                //  |  |  |  |  -  - Data
+                //  |  |  |  - Command Code
+                //  |  |  - Address
+                //  |  - Size of data (including Addr, Cmd, CRC8)
+                //  - Line type (0x00 - Data, 0x49 header information)
+                configuration.pData[dcnt].len = sepLine[1] - 2;
+                configuration.pData[dcnt].pec =
+                    sepLine[3 + configuration.pData[dcnt].len];
+                configuration.pData[dcnt].addr = sepLine[2];
+                configuration.pData[dcnt].cmd = sepLine[3];
+                std::memcpy(configuration.pData[dcnt].data, sepLine + 2,
+                            configuration.pData[dcnt].len + 1);
+                switch (dcnt)
+                {
+                    case cfgId:
+                        configuration.cfgId = sepLine[4] & 0x0F;
+                        debug("Config ID: {ID}", "ID", lg2::hex,
+                              configuration.cfgId);
+                        break;
+                    case gen3LegacyCRC:
+                        if (configuration.mode == gen3Legacy)
+                        {
+                            std::memcpy(&configuration.crcExp, &sepLine[4],
+                                        checksumLen);
+                            debug("Config Legacy CRC: {CRC}", "CRC", lg2::hex,
+                                  configuration.crcExp);
+                        }
+                        break;
+                    case gen3ProductionCRC:
+                        if (configuration.mode == gen3Production)
+                        {
+                            std::memcpy(&configuration.crcExp, &sepLine[4],
+                                        checksumLen);
+                            debug("Config Production CRC: {CRC}", "CRC",
+                                  lg2::hex, configuration.crcExp);
+                        }
+                        break;
+                }
+                dcnt++;
+            }
+            else
+            {
+                error("parseImage failed. Unknown recordType");
+                return false;
+            }
+
+            nextLineStart = i + 1;
+        }
+    }
+    configuration.wrCnt = dcnt;
+    return true;
+}
+
+bool ISL69269::checkImage()
+{
+    uint8_t crc8 = 0;
+
+    for (int i = 0; i < configuration.wrCnt; i++)
+    {
+        crc8 = calcCRC8(configuration.pData[i].data,
+                        configuration.pData[i].len + 1);
+        if (crc8 != configuration.pData[i].pec)
+        {
+            debug(
+                "Config line: {LINE}, failed to calculate CRC. Have {HAVE}, Want: {WANT}",
+                "LINE", i, "HAVE", lg2::hex, crc8, "WANT", lg2::hex,
+                configuration.pData[i].pec);
+            return false;
+        }
+    }
+
+    return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::program()
+{
+    uint8_t tbuf[programBufferSize] = {0};
+    uint8_t rbuf[programBufferSize] = {0};
+    uint8_t rlen = zeroByteLen;
+
+    for (int i = 0; i < configuration.wrCnt; i++)
+    {
+        tbuf[0] = configuration.pData[i].cmd;
+        std::memcpy(tbuf + 1, &configuration.pData[i].data,
+                    configuration.pData[i].len - 1);
+
+        if (!(co_await i2cInterface.sendReceive(
+                tbuf, configuration.pData[i].len, rbuf, rlen)))
+        {
+            error("program failed at writing data to voltage regulator");
+        }
+    }
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::getProgStatus()
+{
+    uint8_t tbuf[programBufferSize] = {0};
+    uint8_t rbuf[programBufferSize] = {0};
+    int retry = 3;
+
+    tbuf[0] = regProgStatus;
+    tbuf[1] = 0x00;
+
+    do
+    {
+        // NOLINTBEGIN(clang-analyzer-core.uninitialized.Branch)
+        if (!(co_await dmaReadWrite(tbuf, rbuf)))
+        // NOLINTEND(clang-analyzer-core.uninitialized.Branch)
+        {
+            error("getProgStatus failed on dmaReadWrite");
+            co_return false;
+        }
+
+        if (rbuf[0] & 0x01)
+        {
+            debug("Programming succesful");
+            break;
+        }
+        if (--retry == 0)
+        {
+            if ((!(rbuf[1] & 0x1)) || (rbuf[1] & 0x2))
+            {
+                error("programming the device failed");
+            }
+            if (!(rbuf[1] & 0x4))
+            {
+                error(
+                    "HEX file contains more configurations than are available");
+            }
+            if (!(rbuf[1] & 0x8))
+            {
+                error(
+                    "A CRC mismatch exists within the configuration data. Programming failed before  TP banks are consumed");
+            }
+            if (!(rbuf[1] & 0x10))
+            {
+                error(
+                    "CRC check fails on the OTP memory. Programming fails after OTP banks are consumed");
+            }
+            if (!(rbuf[1] & 0x20))
+            {
+                error("Programming fails after OTP banks are consumed.");
+            }
+
+            error("failed to program the device after exceeding retries");
+            co_return false;
+        }
+        co_await sdbusplus::async::sleep_for(ctx, std::chrono::seconds(1));
+    } while (retry > 0);
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::restoreCfg()
+{
+    uint8_t tbuf[defaultBufferSize] = {0};
+    uint8_t rbuf[defaultBufferSize] = {0};
+
+    tbuf[0] = regRestoreCfg;
+    tbuf[1] = configuration.cfgId;
+
+    debug("Restore configurtion ID: {ID}", "ID", lg2::hex, configuration.cfgId);
+
+    if (!(co_await dmaReadWrite(tbuf, rbuf)))
+    {
+        error("restoreCfg failed at dmaReadWrite");
+        co_return false;
+    }
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::verifyImage(const uint8_t* image,
+                                                   size_t imageSize)
+{
+    uint8_t mode = 0xFF;
+    uint8_t remain = 0;
+    uint32_t devID = 0;
+    uint32_t devRev = 0;
+    uint32_t crc = 0;
+
+    if (!(co_await getHexMode(&mode)))
+    {
+        error("program failed at getHexMode");
+        co_return false;
+    }
+
+    if (!parseImage(image, imageSize))
+    {
+        error("verifyImage failed at parseImage");
+        co_return false;
+    }
+
+    if (!checkImage())
+    {
+        error("verifyImage failed at checkImage");
+        co_return false;
+    }
+
+    if (mode != configuration.mode)
+    {
+        error(
+            "program failed with mode of device and configuration are not equal");
+        co_return false;
+    }
+
+    if (!(co_await getRemainingWrites(&remain)))
+    {
+        error("program failed at getRemainingWrites");
+        co_return false;
+    }
+
+    if (!remain)
+    {
+        error("program failed with no remaining writes left on device");
+        co_return false;
+    }
+
+    if (!(co_await getDeviceId(&devID)))
+    {
+        error("program failed at getDeviceId");
+        co_return false;
+    }
+
+    if (devID != configuration.devIdExp)
+    {
+        error(
+            "program failed with not matching device id of device and config");
+        co_return false;
+    }
+
+    if (!(co_await getDeviceRevision(&devRev)))
+    {
+        error("program failed at getDeviceRevision");
+        co_return false;
+    }
+    debug("Device revision read from device: {REV}", "REV", lg2::hex, devRev);
+
+    switch (mode)
+    {
+        case gen3Legacy:
+            if (((devRev >> 24) >= gen3SWRevMin) &&
+                (configuration.devRevExp <= 0x1))
+            {
+                debug("Legacy mode revision checks out");
+            }
+            else
+            {
+                error(
+                    "revision requirements for legacy mode device not fulfilled");
+            }
+            break;
+        case gen3Production:
+            if (((devRev >> 24) >= gen3SWRevMin) &&
+                (configuration.devRevExp >= gen3SWRevMin))
+            {
+                debug("Production mode revision checks out");
+            }
+            else
+            {
+                error(
+                    "revision requirements for production mode device not fulfilled");
+            }
+            break;
+    }
+
+    if (!(co_await getCRC(&crc)))
+    {
+        error("program failed at getCRC");
+        co_return false;
+    }
+
+    debug("CRC from device: {CRC}", "CRC", lg2::hex, crc);
+    debug("CRC from config: {CRC}", "CRC", lg2::hex, configuration.crcExp);
+
+    if (crc == configuration.crcExp)
+    {
+        error("program failed with same CRC value at device and configuration");
+        co_return false;
+    }
+
+    co_return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::reset()
+{
+    bool ret = true;
+    // NOLINTBEGIN(clang-analyzer-core.uninitialized.Branch)
+    ret = co_await getProgStatus();
+    // NOLINTEND(clang-analyzer-core.uninitialized.Branch)
+    if (!ret)
+    {
+        error("reset failed at getProgStatus");
+    }
+
+    ret = co_await restoreCfg();
+    if (!ret)
+    {
+        error("reset failed at restoreCfg");
+    }
+
+    // Reset configuration for next update.
+    configuration.addr = 0;
+    configuration.mode = 0;
+    configuration.cfgId = 0;
+    configuration.devIdExp = 0;
+    configuration.devRevExp = 0;
+    configuration.crcExp = 0x00;
+    for (int i = 0; i < configuration.wrCnt; i++)
+    {
+        configuration.pData[i].pec = 0x00;
+        configuration.pData[i].addr = 0x00;
+        configuration.pData[i].cmd = 0x00;
+        for (int j = 0; j < configuration.pData[i].len; j++)
+        {
+            configuration.pData[i].data[j] = 0x00;
+        }
+        configuration.pData[i].len = 0x00;
+    }
+    configuration.wrCnt = 0;
+
+    co_return ret;
+}
+
+bool ISL69269::forcedUpdateAllowed()
+{
+    return true;
+}
+
+sdbusplus::async::task<bool> ISL69269::updateFirmware(bool force)
+{
+    (void)force;
+    if (!(co_await program()))
+    {
+        error("programing ISL69269 failed");
+        co_return false;
+    }
+
+    co_return true;
+}
+
+} // namespace phosphor::software::VR