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authorPi-Hsun Shih <pihsun@chromium.org>2020-06-12 12:05:19 +0800
committerMark Brown <broonie@kernel.org>2020-06-15 22:40:14 +0100
commitdff08caf35ecef4f7647f8b1e40877a254852a2b (patch)
treea49e67536d4b11a18252e6749a92c4ae5204fd0c /include/linux/platform_data
parent54bd53b9c11ed856abeedbf1ce92a19b546f56cf (diff)
platform/chrome: cros_ec: Add command for regulator control.
Add host commands for voltage regulator control through ChromeOS EC. Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org> Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Link: https://lore.kernel.org/r/20200612040526.192878-3-pihsun@chromium.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/platform_data')
-rw-r--r--include/linux/platform_data/cros_ec_commands.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index 69210881ebac..a417b51b5764 100644
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -5431,6 +5431,88 @@ struct ec_response_rollback_info {
#define EC_CMD_AP_RESET 0x0125
/*****************************************************************************/
+/* Voltage regulator controls */
+
+/*
+ * Get basic info of voltage regulator for given index.
+ *
+ * Returns the regulator name and supported voltage list in mV.
+ */
+#define EC_CMD_REGULATOR_GET_INFO 0x012B
+
+/* Maximum length of regulator name */
+#define EC_REGULATOR_NAME_MAX_LEN 16
+
+/* Maximum length of the supported voltage list. */
+#define EC_REGULATOR_VOLTAGE_MAX_COUNT 16
+
+struct ec_params_regulator_get_info {
+ uint32_t index;
+} __ec_align4;
+
+struct ec_response_regulator_get_info {
+ char name[EC_REGULATOR_NAME_MAX_LEN];
+ uint16_t num_voltages;
+ uint16_t voltages_mv[EC_REGULATOR_VOLTAGE_MAX_COUNT];
+} __ec_align1;
+
+/*
+ * Configure the regulator as enabled / disabled.
+ */
+#define EC_CMD_REGULATOR_ENABLE 0x012C
+
+struct ec_params_regulator_enable {
+ uint32_t index;
+ uint8_t enable;
+} __ec_align4;
+
+/*
+ * Query if the regulator is enabled.
+ *
+ * Returns 1 if the regulator is enabled, 0 if not.
+ */
+#define EC_CMD_REGULATOR_IS_ENABLED 0x012D
+
+struct ec_params_regulator_is_enabled {
+ uint32_t index;
+} __ec_align4;
+
+struct ec_response_regulator_is_enabled {
+ uint8_t enabled;
+} __ec_align1;
+
+/*
+ * Set voltage for the voltage regulator within the range specified.
+ *
+ * The driver should select the voltage in range closest to min_mv.
+ *
+ * Also note that this might be called before the regulator is enabled, and the
+ * setting should be in effect after the regulator is enabled.
+ */
+#define EC_CMD_REGULATOR_SET_VOLTAGE 0x012E
+
+struct ec_params_regulator_set_voltage {
+ uint32_t index;
+ uint32_t min_mv;
+ uint32_t max_mv;
+} __ec_align4;
+
+/*
+ * Get the currently configured voltage for the voltage regulator.
+ *
+ * Note that this might be called before the regulator is enabled.
+ */
+#define EC_CMD_REGULATOR_GET_VOLTAGE 0x012F
+
+struct ec_params_regulator_get_voltage {
+ uint32_t index;
+} __ec_align4;
+
+struct ec_response_regulator_get_voltage {
+ uint32_t voltage_mv;
+} __ec_align4;
+
+/*****************************************************************************/
/* The command range 0x200-0x2FF is reserved for Rotor. */
/*****************************************************************************/