* Qualcomm Technologies, Inc. MSM EEPROM EEPROM is a one time programmed(OTP) device that stores the calibration data use for camera sensor. It may either be integrated in the sensor module or in the sensor itself. As a result, the power, clock and GPIOs may be the same as the camera sensor. The following describes the page block map, power supply, clock, GPIO and power on sequence properties of the EEPROM device. ======================================================= Required Node Structure if probe happens from userspace ======================================================= The EEPROM device is described in one level of the device node. ====================================== First Level Node - CAM EEPROM device ====================================== - compatible Usage: required Value type: Definition: Should be "qcom,eeprom". - cell-index Usage: required Value type: Definition: Should specify the hardware index id. - reg Usage: required Value type: Definition: Register values. - regulator-names Usage: required Value type: Definition: Name of the regulator resources for EEPROM HW. - xxxx-supply Usage: required Value type: Definition: Regulator reference corresponding to the names listed in "regulator-names". - rgltr-cntrl-support Usage: required Value type: Definition: This property specifies if the regulator control is supported e.g. rgltr-min-voltage. - rgltr-min-voltage Usage: required Value type: Definition: should contain minimum voltage level for regulators mentioned in regulator-names property. - rgltr-max-voltage Usage: required Value type: Definition: should contain maximum voltage level for regulators mentioned in regulator-names property. - rgltr-load-current Usage: required Value type: Definition: should contain the maximum current in microamps required for the regulators mentioned in regulator-names property. - gpio-no-mux Usage: required Value type: Definition: should specify the gpio mux type. - gpios Usage: required Value type: Definition: should specify the gpios to be used for the eeprom. - gpio-reset Usage: required Value type: Definition: should specify the reset gpio index. - gpio-standby Usage: required Value type: Definition: should specify the standby gpio index. - gpio-req-tbl-num Usage: required Value type: Definition: should specify the gpio table index. - gpio-req-tbl-flags Usage: required Value type: Definition: should specify the gpio functions. - gpio-req-tbl-label Usage: required Value type: Definition: should specify the gpio labels. - sensor-position Usage: required Value type: Definition: should contain the mount angle of the camera sensor. - cci-device Usage: required Value type: Definition: should contain i2c device id to be used for this camera sensor - cci-master Usage: required Value type: Definition: should contain i2c master id to be used for this camera sensor. - sensor-mode Usage: required Value type: Definition: should contain sensor mode supported. - clock-names Usage: required Value type: Definition: List of clock names required for EEPROM HW. - clocks Usage: required Value type: Definition: List of clocks used for EEPROM HW. - clock-cntl-level Usage: required Value type: Definition: says what all different clock levels eeprom node has. - clock-rates Usage: required Value type: Definition: List of clocks rates. Example: eeprom0: qcom,eeprom@0 { cell-index = <0>; reg = <0x0>; compatible = "qcom,eeprom"; cam_vdig-supply = <&pm8998_l5>; cam_vio-supply = <&pm8998_lvs1>; regulator-names = "cam_vdig", "cam_vio"; rgltr-cntrl-support; rgltr-min-voltage = <1200000 0>; rgltr-max-voltage = <1200000 0>; rgltr-load-current = <0 80000 105000 0>; gpio-no-mux = <0>; gpios = <&msmgpio 26 0>, <&msmgpio 37 0>, <&msmgpio 36 0>; gpio-reset = <1>; gpio-standby = <2>; gpio-req-tbl-num = <0 1 2>; gpio-req-tbl-flags = <1 0 0>; gpio-req-tbl-label = "CAMIF_MCLK", "CAM_RESET1", "CAM_STANDBY"; sensor-position = <0>; sensor-mode = <0>; cci-device = <0>; cci-master = <0>; status = "ok"; clocks = <&clock_camcc CAM_CC_MCLK0_CLK>; clock-names = "cam_clk"; clock-cntl-level = "turbo"; clock-rates = <24000000>; }; ======================================================= Required Node Structure if probe happens from kernel ======================================================= The EEPROM device is described in one level of the device node. ====================================== First Level Node - CAM EEPROM device ====================================== - compatible Usage: required Value type: Definition: Should be "qcom,eeprom". - cell-index Usage: required Value type: Definition: Should specify the hardware index id. - reg Usage: required Value type: Definition: Register values. - qcom,eeprom-name Usage: required Value type: Definition: Name of the EEPROM HW. - qcom,slave-addr Usage: required Value type: Definition: Slave address of the EEPROM HW. - qcom,num-blocks Usage: required Value type: Definition: Total block number that eeprom contains. - qcom,pageX Usage: required Value type: Definition: List of values specifying page size, start address, address type, data, data type, delay in ms. size 0 stand for non-paged. - qcom,pollX Usage: required Value type: Definition: List of values specifying poll size, poll reg address, address type, data, data type, delay in ms. size 0 stand for not used. - qcom,memX Usage: required Value type: Definition: List of values specifying memory size, start address, address type, data, data type, delay in ms. size 0 stand for not used. - qcom,saddrX Usage: required Value type: Definition: property should specify the slave address for block (%d). - regulator-names Usage: required Value type: Definition: Name of the regulator resources for EEPROM HW. - qcom,cmm-data-support Usage: required Value type: Definition: Camera MultiModule data capability flag.. - qcom,cmm-data-compressed Usage: required Value type: Definition: Camera MultiModule data compression flag. - qcom,cmm-data-offset Usage: required Value type: Definition: Camera MultiModule data start offset. - qcom,cmm-data-size Usage: required Value type: Definition: Camera MultiModule data size. - qcom,cam-power-seq-type Usage: required Value type: Definition: should specify the power on sequence types. - qcom,cam-power-seq-val Usage: required Value type: Definition: should specify the power on sequence values. - qcom,cam-power-seq-cfg-val Usage: required Value type: Definition: should specify the power on sequence config values. - qcom,cam-power-seq-delay Usage: required Value type: Definition: should specify the power on sequence delay time in ms. - spiop-read Usage: required Value type: Definition: this array provides SPI read operation related data. - spiop-readseq Usage: required Value type: Definition: this array provides SPI read sequence operation realted data. - spiop-queryid Usage: required Value type: Definition: this array provides SPI query eeprom id operation related data. - spiop-pprog: Usage: required Value type: Definition: this array provides SPI page program operation related data. - spiop-wenable Usage: required Value type: Definition: this array provides SPI write enable operation related data. - spiop-readst Usage: required Value type: Definition: this array provides SPI read destination operation related data. - spiop-erase Usage: required Value type: Definition: this array provides SPI erase operation related data. - eeprom-idx Usage: required Value type: Definition: this array provides eeprom id realted data. - xxxx-supply Usage: required Value type: Definition: Regulator reference corresponding to the names listed in "regulator-names". - rgltr-cntrl-support Usage: required Value type: Definition: This property specifies if the regulator control is supported e.g. rgltr-min-voltage. - rgltr-min-voltage Usage: required Value type: Definition: should contain minimum voltage level for regulators mentioned in regulator-names property. - rgltr-max-voltage Usage: required Value type: Definition: should contain maximum voltage level for regulators mentioned in regulator-names property. - rgltr-load-current Usage: required Value type: Definition: should contain the maximum current in microamps required for the regulators mentioned in regulator-names property. - gpio-no-mux Usage: required Value type: Definition: should specify the gpio mux type. - gpios Usage: required Value type: Definition: should specify the gpios to be used for the eeprom. - gpio-reset Usage: required Value type: Definition: should specify the reset gpio index. - gpio-standby Usage: required Value type: Definition: should specify the standby gpio index. - gpio-req-tbl-num Usage: required Value type: Definition: should specify the gpio table index. - gpio-req-tbl-flags Usage: required Value type: Definition: should specify the gpio functions. - gpio-req-tbl-label Usage: required Value type: Definition: should specify the gpio labels. - sensor-position Usage: required Value type: Definition: should contain the mount angle of the camera sensor. - cci-device Usage: required Value type: Definition: should contain i2c device id to be used for this camera sensor - cci-master Usage: required Value type: Definition: should contain i2c master id to be used for this camera sensor. - sensor-mode Usage: required Value type: Definition: should contain sensor mode supported. - clock-cntl-level Usage: required Value type: Definition: says what all different clock levels eeprom node has. - clock-names Usage: required Value type: Definition: List of clock names required for EEPROM HW. - clocks Usage: required Value type: Definition: List of clocks used for EEPROM HW. - clock-rates Usage: required Value type: Definition: List of clocks rates. Example: eeprom0: qcom,eeprom@0 { cell-index = <0>; reg = <0x0>; qcom,eeprom-name = "msm_eeprom"; eeprom-id0 = <0xF8 0x15>; eeprom-id1 = <0xEF 0x15>; eeprom-id2 = <0xC2 0x36>; eeprom-id3 = <0xC8 0x15>; compatible = "qcom,eeprom"; qcom,slave-addr = <0x60>; qcom,num-blocks = <2>; qcom,page0 = <1 0x100 2 0x01 1 1>; qcom,poll0 = <0 0x0 2 0 1 1>; qcom,mem0 = <0 0x0 2 0 1 0>; qcom,page1 = <1 0x0200 2 0x8 1 1>; qcom,pageen1 = <1 0x0202 2 0x01 1 10>; qcom,poll1 = <0 0x0 2 0 1 1>; qcom,mem1 = <32 0x3000 2 0 1 0>; qcom,saddr1 = <0x62>; qcom,cmm-data-support; qcom,cmm-data-compressed; qcom,cmm-data-offset = <0>; qcom,cmm-data-size = <0>; spiop-read = <0x03 3 0 0 0>; spiop-readseq = <0x03 3 0 0 0>; spiop-queryid = <0x90 3 0 0 0>; spiop-pprog = <0x02 3 0 3 100>; spiop-wenable = <0x06 0 0 0 0>; spiop-readst = <0x05 0 0 0 0>; spiop-erase = <0x20 3 0 10 100>; qcom,cam-power-seq-type = "sensor_vreg", "sensor_vreg", "sensor_clk", "sensor_gpio", "sensor_gpio"; qcom,cam-power-seq-val = "cam_vdig", "cam_vio", "sensor_cam_mclk", "sensor_gpio_reset", "sensor_gpio_standby"; qcom,cam-power-seq-cfg-val = <1 1 24000000 1 1>; qcom,cam-power-seq-delay = <1 1 5 5 10>; cam_vdig-supply = <&pm8998_l5>; cam_vio-supply = <&pm8998_lvs1>; regulator-names = "cam_vdig", "cam_vio"; rgltr-cntrl-support; rgltr-min-voltage = <1200000 0>; rgltr-max-voltage = <1200000 0>; rgltr-load-current = <0 80000 105000 0>; qcom,gpio-no-mux = <0>; gpios = <&msmgpio 26 0>, <&msmgpio 37 0>, <&msmgpio 36 0>; gpio-reset = <1>; gpio-standby = <2>; gpio-req-tbl-num = <0 1 2>; gpio-req-tbl-flags = <1 0 0>; gpio-req-tbl-label = "CAMIF_MCLK", "CAM_RESET1", "CAM_STANDBY"; sensor-position = <0>; sensor-mode = <0>; cci-device = <0>; cci-master = <0>; status = "ok"; clocks = <&clock_camcc CAM_CC_MCLK0_CLK>; clock-cntl-level = "turbo"; clock-names = "cam_clk"; clock-rates = <24000000>; };