brain-hackers_pepepper-mirror
/
linux-brain
mirror of https://github.com/brain-hackers/linux-brain.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

misc: rtsx: init of rts522a add OCP power off when no card is present 

commit 920fd8a70619074eac7687352c8f1c6f3c2a64a5 upstream.

Power down OCP for power consumption
when no SD/MMC card is present

Cc: stable@vger.kernel.org
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20210204083115.9471-1-ricky_wu@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ricky Wu 2021-02-04 16:31:15 +08:00 committed by Greg Kroah-Hartman
parent aa00c2d60a
commit d82d5a77f0
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/misc/cardreader/rts5227.c
View File

@ -338,6 +338,11 @@ static int rts522a_extra_init_hw(struct rtsx_pcr *pcr)
{
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);