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path: root/drivers/misc/cardreader/rts5228.c
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* misc: rtsx: Fix some platforms can not boot and move the l1ss judgment to probeRicky WU2023-09-251-40/+17
| | | | | | | | | | | | | | | | | | | | commit 101bd907b424 ("misc: rtsx: judge ASPM Mode to set PETXCFG Reg") some readers no longer force #CLKREQ to low when the system need to enter ASPM. But some platform maybe not implement complete ASPM? it causes some platforms can not boot Like in the past only the platform support L1ss we release the #CLKREQ. Move the judgment (L1ss) to probe, we think read config space one time when the driver start is enough Fixes: 101bd907b424 ("misc: rtsx: judge ASPM Mode to set PETXCFG Reg") Cc: stable <stable@kernel.org> Reported-by: Paul Grandperrin <paul.grandperrin@gmail.com> Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Tested-By: Jade Lovelace <lists@jade.fyi> Link: https://lore.kernel.org/r/37b1afb997f14946a8784c73d1f9a4f5@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: judge ASPM Mode to set PETXCFG RegRicky WU2023-08-041-18/+0
| | | | | | | | | | | ASPM Mode is ASPM_MODE_CFG need to judge the value of clkreq_0 to set HIGH or LOW, if the ASPM Mode is ASPM_MODE_REG always set to HIGH during the initialization. Cc: stable@vger.kernel.org Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/52906c6836374c8cb068225954c5543a@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: clean up one inconsistent indentingYang Li2022-03-181-1/+1
| | | | | | | | | | | Eliminate the follow smatch warning: drivers/misc/cardreader/rts5228.c:494 rts5228_extra_init_hw() warn: inconsistent indenting Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/20220303020206.98911-1-yang.lee@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: rts522a rts5228 rts5261 support Runtime PMRicky WU2022-02-251-2/+19
| | | | | | | | | | | | rts522a, rts5228, rts5261 add extra init flow for rtd3 add more power_down setting for avoid being woken up by plugging or unplugging card when system in S3 Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/dace32f573a445908fec0a10482c394c@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Quiesce rts5249 on system suspendKai-Heng Feng2022-01-261-1/+1
| | | | | | | | | | | | | | Set more registers in force_power_down callback to avoid S3 wakeup from hotplugging cards. This is originally written by Ricky WU. Link: https://lore.kernel.org/lkml/c4525b4738f94483b9b8f8571fc80646@realtek.com/ Cc: Ricky WU <ricky_wu@realtek.com> Tested-by: Ricky WU <ricky_wu@realtek.com> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20220125055010.1866563-4-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: separate aspm mode into MODE_REG and MODE_CFGRicky Wu2021-06-091-0/+1
| | | | | | | | | | | | | | | | | | aspm (Active State Power Management) rtsx_comm_set_aspm: this function is for driver to make sure not enter power saving when processing of init and card_detcct ASPM_MODE_CFG: 8411 5209 5227 5229 5249 5250 Change back to use original way to control aspm ASPM_MODE_REG: 5227A 524A 5250A 5260 5261 5228 Keep the new way to control aspm Fixes: 121e9c6b5c4c ("misc: rtsx: modify and fix init_hw function") Reported-by: Chris Chiu <chris.chiu@canonical.com> Tested-by: Gordon Lack <gordon.lack@dsl.pipex.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/20210607101634.4948-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Fix power down flowRicky Wu2020-09-161-3/+2
| | | | | | | | 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>
* misc: rtsx: Use standard PCI definitionsBjorn Helgaas2020-07-221-4/+4
| | | | | | | | | | | | When reading registers defined by the PCIe spec, use the names already defined by the PCI core. This makes maintenance of the PCI core and drivers easier. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200721212336.1159079-6-helgaas@kernel.org [ additional replacements due to changes in my tree - gregkh ] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Find L1 PM Substates capability instead of hard-codingBjorn Helgaas2020-07-221-1/+6
| | | | | | | | | | | | | | Instead of hard-coding the location of the L1 PM Substates capability based on the Device ID, search for it in the extended capabilities list. This works for any device, as long as it implements the L1 PM Substates capability correctly, so it doesn't require maintenance as new devices are added. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200721212336.1159079-5-helgaas@kernel.org [ minor addition due to differences in my tree - gregkh] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Remove rtsx_pci_read/write_config() wrappersBjorn Helgaas2020-07-221-3/+5
| | | | | | | | | | | | | | | | rtsx_pci_read_config_dword() and similar wrappers around the PCI config accessors add very little value, and they obscure the fact that often we are accessing standard PCI registers that should be coordinated with the PCI core. Remove the wrappers and use the PCI config accessors directly. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200721212336.1159079-4-helgaas@kernel.org [ fixed up some other instances as original patch was based on old tree - gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Add support new chip rts5228 mmc: rtsx: Add support MMC_CAP2_NO_MMCRicky Wu2020-07-101-0/+740
In order to support new chip rts5228, the definitions of some internal registers and workflow have to be modified. Added rts5228.c rts5228.h for independent functions of the new chip rts5228 Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/20200706070259.32565-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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