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 5.11-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-5.11 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-5.11/misc-rtsx-init-of-rts522a-add-ocp-power-off-when-no-card-is-present.patch
