This is a note to let you know that I've just added the patch titled misc: rtsx: init of rts522a add OCP power off when no card is present to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: misc-rtsx-init-of-rts522a-add-ocp-power-off-when-no-card-is-present.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 920fd8a70619074eac7687352c8f1c6f3c2a64a5 Mon Sep 17 00:00:00 2001 From: Ricky Wu <ricky_wu@xxxxxxxxxxx> Date: Thu, 4 Feb 2021 16:31:15 +0800 Subject: misc: rtsx: init of rts522a add OCP power off when no card is present From: Ricky Wu <ricky_wu@xxxxxxxxxxx> commit 920fd8a70619074eac7687352c8f1c6f3c2a64a5 upstream. Power down OCP for power consumption when no SD/MMC card is present Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Ricky Wu <ricky_wu@xxxxxxxxxxx> Link: https://lore.kernel.org/r/20210204083115.9471-1-ricky_wu@xxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/misc/cardreader/rts5227.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/misc/cardreader/rts5227.c +++ b/drivers/misc/cardreader/rts5227.c @@ -398,6 +398,11 @@ static int rts522a_extra_init_hw(struct { rts5227_extra_init_hw(pcr); + /* Power down OCP for power consumption */ + if (!pcr->card_exist) + rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN, + OC_POWER_DOWN); + rtsx_pci_write_register(pcr, FUNC_FORCE_CTL, FUNC_FORCE_UPME_XMT_DBG, FUNC_FORCE_UPME_XMT_DBG); rtsx_pci_write_register(pcr, PCLK_CTL, 0x04, 0x04); Patches currently in stable-queue which might be from ricky_wu@xxxxxxxxxxx are queue-5.10/misc-rtsx-init-of-rts522a-add-ocp-power-off-when-no-card-is-present.patch