kernel/drivers/misc/cardreader/rts5260.c, branch linux-rolling-stable

misc: rtsx: Fix some platforms can not boot and move the l1ss judgment to probe

2023-10-06T11:16:20Z

commit 0e4cac557531a4c93de108d9ff11329fcad482ff upstream. 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 Reported-by: Paul Grandperrin Signed-off-by: Ricky Wu Tested-By: Jade Lovelace Link: https://lore.kernel.org/r/37b1afb997f14946a8784c73d1f9a4f5@realtek.com Signed-off-by: Greg Kroah-Hartman

misc: rtsx: judge ASPM Mode to set PETXCFG Reg

2023-08-04T13:52:43Z

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 Link: https://lore.kernel.org/r/52906c6836374c8cb068225954c5543a@realtek.com Signed-off-by: Greg Kroah-Hartman

misc: rtsx: separate aspm mode into MODE_REG and MODE_CFG

2021-06-09T17:10:22Z

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 Tested-by: Gordon Lack Cc: stable Signed-off-by: Ricky Wu Link: https://lore.kernel.org/r/20210607101634.4948-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman

misc: rtsx: Add power saving functions and fix driving parameter

2020-09-16T15:30:37Z

v4: split power down flow and power saving function to two patch v5: fix up modified change under the --- line Add rts522a L1 sub-state support Save more power on rts5227 rts5249 rts525a rts5260 Fix rts5260 driving parameter Signed-off-by: Ricky Wu Link: https://lore.kernel.org/r/20200907100731.7722-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman

misc: rtsx: Fix power down flow

2020-09-16T15:30:37Z

Fix and sort out rtsx driver power down flow Signed-off-by: Ricky Wu Link: https://lore.kernel.org/r/20200907100718.7672-1-ricky_wu@realtek.com Signed-off-by: Greg Kroah-Hartman

misc: rtsx: Use standard PCI definitions

2020-07-22T11:39:31Z

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 Acked-by: Arnd Bergmann 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

misc: rtsx: Find L1 PM Substates capability instead of hard-coding

2020-07-22T11:34:27Z

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 Acked-by: Arnd Bergmann 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

misc: rtsx: Remove rtsx_pci_read/write_config() wrappers

2020-07-22T11:29:44Z

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 Acked-by: Arnd Bergmann 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

misc: rtsx: Remove unnecessary rts5249_set_aspm(), rts5260_set_aspm()

2020-05-22T07:38:14Z

rts5249_set_aspm() and rts5260_set_aspm() do nothing more than the default rtsx_comm_set_aspm() does, so remove them and use the default. No functional change intended. Signed-off-by: Bjorn Helgaas Link: https://lore.kernel.org/r/20200521180545.1159896-7-helgaas@kernel.org Signed-off-by: Greg Kroah-Hartman

misc: rtsx: Use pcie_capability_clear_and_set_word() for PCI_EXP_LNKCTL

2020-05-22T07:38:13Z

Instead of using the driver-specific rtsx_pci_update_cfg_byte() to update the PCIe Link Control Register, use pcie_capability_clear_and_set_word() like the rest of the kernel does. This makes it easier to maintain ASPM across the PCI core and drivers. Remove the now-unused rtsx_pci_update_cfg_byte() and ASPM_MASK_NEG definitions. No functional change intended. Signed-off-by: Bjorn Helgaas Link: https://lore.kernel.org/r/20200521180545.1159896-5-helgaas@kernel.org Signed-off-by: Greg Kroah-Hartman