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| author | Ricky Wu <ricky_wu@realtek.com> | 2020-09-07 18:07:18 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-16 17:30:37 +0200 |
| commit | 0268eed10f12f785a618880920d90ee306fb2a50 (patch) | |
| tree | 36bdfcec1a115f68db61609f756e175616c33c41 /drivers/misc/cardreader/rtsx_pcr.c | |
| parent | bc28369c6189009b66d9619dd9f09bd8c684bb98 (diff) | |
| download | lwn-0268eed10f12f785a618880920d90ee306fb2a50.tar.gz lwn-0268eed10f12f785a618880920d90ee306fb2a50.zip | |
misc: rtsx: Fix power down flow
Fix and sort out rtsx driver power down flow
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20200907100718.7672-1-ricky_wu@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/cardreader/rtsx_pcr.c')
| -rw-r--r-- | drivers/misc/cardreader/rtsx_pcr.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c index c089eae71ccc..5d15607027e9 100644 --- a/drivers/misc/cardreader/rtsx_pcr.c +++ b/drivers/misc/cardreader/rtsx_pcr.c @@ -1096,6 +1096,20 @@ static void rtsx_pci_idle_work(struct work_struct *work) mutex_unlock(&pcr->pcr_mutex); } +static void rtsx_base_force_power_down(struct rtsx_pcr *pcr, u8 pm_state) +{ + /* Set relink_time to 0 */ + rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, MASK_8_BIT_DEF, 0); + rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, MASK_8_BIT_DEF, 0); + rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, + RELINK_TIME_MASK, 0); + + rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, + D3_DELINK_MODE_EN, D3_DELINK_MODE_EN); + + rtsx_pci_write_register(pcr, FPDCTL, ALL_POWER_DOWN, ALL_POWER_DOWN); +} + static void __maybe_unused rtsx_pci_power_off(struct rtsx_pcr *pcr, u8 pm_state) { if (pcr->ops->turn_off_led) @@ -1109,6 +1123,8 @@ static void __maybe_unused rtsx_pci_power_off(struct rtsx_pcr *pcr, u8 pm_state) if (pcr->ops->force_power_down) pcr->ops->force_power_down(pcr, pm_state); + else + rtsx_base_force_power_down(pcr, pm_state); } void rtsx_pci_enable_ocp(struct rtsx_pcr *pcr) |