diff options
| author | Ricky Wu <ricky_wu@realtek.com> | 2021-02-04 11:31:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 11:39:54 +0300 |
| commit | 83494054fd635d21936ed112a96a1d9cbc0472d2 (patch) | |
| tree | 029c4d63bfa1cb654d202de38cfce9b9c1805afe /drivers | |
| parent | d03e908480dd1f2c092db45e467c508dad44ce48 (diff) | |
| download | linux-83494054fd635d21936ed112a96a1d9cbc0472d2.tar.xz | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/cardreader/rts5227.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/cardreader/rts5227.c b/drivers/misc/cardreader/rts5227.c index f0e845c8e6a7..d3ce9fe08eaf 100644 --- a/drivers/misc/cardreader/rts5227.c +++ b/drivers/misc/cardreader/rts5227.c @@ -339,6 +339,11 @@ 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); |