mmcsd driver - stupid question

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From: Wojciech Puchar <wojtek_at_puchar.net>
Date: Sat, 07 Oct 2023 14:45:29 UTC

i have SD card reader builtin in my laptop. Works, but detects cards only 
at boot.

sdhci_acpi0: <Intel Bay Trail/Braswell SDXC Controller> iomem 
0x81420000-0x81420fff irq 47 on acpi0
mmc0: <MMC/SD bus> on sdhci_acpi0
mmcsd0: 16GB <SDHC SS16G 8.0 SN CF7A1E1C MFG 02/2007 by 3 SD> at mmc0 50.0MHz/4bit/65535-block

how to force rescan of mmc bus without reboot?