From: Ronald Claveau Date: Fri, 24 Apr 2026 15:45:11 +0000 (+0200) Subject: firmware: meson: sm: Add thermal calibration SMC call X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1c5cb7391ef5f869ef333c04d6422c0e0859a870;p=thirdparty%2Fkernel%2Flinux.git firmware: meson: sm: Add thermal calibration SMC call Add SM_THERMAL_CALIB_READ at SMC ID 0x82000047 in the command table and implement meson_sm_get_thermal_calib(), which forwards the tsensor_id argument to the secure monitor and returns the calibration data. Also realign the CMD() column to improve readability. Signed-off-by: Ronald Claveau Signed-off-by: Daniel Lezcano [ dlezcano: Fixed kernel-doc format warning ] Reviewed-by: Neil Armstrong Link: https://patch.msgid.link/20260424-add-thermal-t7-vim4-v5-3-9040ca36afe2@aliel.fr --- diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c index 3ab67aaa9e5da..ab9751a59b552 100644 --- a/drivers/firmware/meson/meson_sm.c +++ b/drivers/firmware/meson/meson_sm.c @@ -41,12 +41,13 @@ static const struct meson_sm_chip gxbb_chip = { .cmd_shmem_in_base = 0x82000020, .cmd_shmem_out_base = 0x82000021, .cmd = { - CMD(SM_EFUSE_READ, 0x82000030), - CMD(SM_EFUSE_WRITE, 0x82000031), + CMD(SM_EFUSE_READ, 0x82000030), + CMD(SM_EFUSE_WRITE, 0x82000031), CMD(SM_EFUSE_USER_MAX, 0x82000033), - CMD(SM_GET_CHIP_ID, 0x82000044), - CMD(SM_A1_PWRC_SET, 0x82000093), - CMD(SM_A1_PWRC_GET, 0x82000095), + CMD(SM_GET_CHIP_ID, 0x82000044), + CMD(SM_THERMAL_CALIB_READ, 0x82000047), + CMD(SM_A1_PWRC_SET, 0x82000093), + CMD(SM_A1_PWRC_GET, 0x82000095), { /* sentinel */ }, }, }; @@ -245,6 +246,23 @@ struct meson_sm_firmware *meson_sm_get(struct device_node *sm_node) } EXPORT_SYMBOL_GPL(meson_sm_get); +/** + * meson_sm_get_thermal_calib - Read thermal sensor calibration data. + * @fw: Pointer to secure-monitor firmware. + * @trim_info: Pointer to store the returned calibration data. + * @tsensor_id: Sensor index to identify which sensor's calibration data + * to retrieve + * + * Return: 0 on success, negative error code on failure. + */ +int meson_sm_get_thermal_calib(struct meson_sm_firmware *fw, u32 *trim_info, + u32 tsensor_id) +{ + return meson_sm_call(fw, SM_THERMAL_CALIB_READ, trim_info, tsensor_id, + 0, 0, 0, 0); +} +EXPORT_SYMBOL_GPL(meson_sm_get_thermal_calib); + #define SM_CHIP_ID_LENGTH 119 #define SM_CHIP_ID_OFFSET 4 #define SM_CHIP_ID_SIZE 12