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* misc: rtsx: rts522a rts5228 rts5261 support Runtime PMRicky WU2022-02-251-3/+30
| | | | | | | | | | | | 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 clock timing for RTS5261Rui Feng2020-11-161-2/+2
| | | | | | | | | | This patch fix clock timing for RTS5261, using 256 divide for the version higher than version C. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397321-3026-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* misc: rtsx: Add hardware auto power off for RTS5261Rui Feng2020-11-161-0/+9
| | | | | | | | | This patch enable hardware auto power off when card is removed. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397312-2991-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* misc: rtsx: Add CD & WP reverse support for RTS5261Rui Feng2020-11-161-0/+5
| | | | | | | | | This patch add CD & WP reverse support for RTS5261 Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397305-2956-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* misc: rtsx: Check mmc support for RTS5261Rui Feng2020-11-161-0/+8
| | | | | | | | | | This patch check mmc support when RTS5261 initialize, and not support mmc default. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397298-2921-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* misc: rtsx: Fix PAD driving for RTS5261Rui Feng2020-11-161-9/+6
| | | | | | | | | This patch fix PAD driving for RTS5261 Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397291-2885-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* misc: rtsx: Fix aspm for RTS5261Rui Feng2020-11-161-1/+9
| | | | | | | | | This patch fix the bug that LDO is off when aspm is enabled. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397285-2850-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* misc: rtsx: Fix OCP function for RTS5261Rui Feng2020-11-161-2/+6
| | | | | | | | | | This patch fix the bug that when there is over current but reader can't enable OCP. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1604397278-2815-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* misc: rtsx: Add SD Express mode support for RTS5261Rui Feng2020-11-161-0/+4
| | | | | | | | | | | | | | | RTS5261 support SD mode and PCIe/NVMe mode. The workflow is as follows. 1.RTS5261 work in SD mode and set MMC_CAPS2_SD_EXP flag. 2.If card is plugged in, Host send CMD8 to ask card's PCIe availability. 3.If the card has PCIe availability and WP is not set, init_sd_express() will be invoked, RTS5261 switch to PCIe/NVMe mode. 4.Mmc driver handover it to NVMe driver. 5.If card is unplugged, RTS5261 will switch to SD mode. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/1603936668-3363-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Ulf Hansson <ulf.hansson@linaro.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 Helgaas2020-07-221-8/+11
| | | | | | | | | | | | | | | | 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: Use pcie_capability_clear_and_set_word() for PCI_EXP_LNKCTLBjorn Helgaas2020-05-221-10/+4
| | | | | | | | | | | | | | | | 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 <bhelgaas@google.com> Link: https://lore.kernel.org/r/20200521180545.1159896-5-helgaas@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Removed unused dev_aspm_modeBjorn Helgaas2020-05-221-30/+6
| | | | | | | | | | The struct rtsx_cr_option.dev_aspm_mode member is never set to anything other than DEV_ASPM_DYNAMIC (0). Remove it and code that tests it. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20200521180545.1159896-3-helgaas@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Improve compatibility for rts5261Rui Feng2020-04-231-2/+7
| | | | | | | | Change initial clock to improve compatibility for rts5261 Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Link: https://lore.kernel.org/r/1586918237-3016-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mmc: rtsx_pci: Fix support for speed-modes that relies on tuningRicky Wu2020-03-181-1/+1
| | | | | | | | | | | | The TX/RX register should not be treated the same way to allow for better support of tuning. Fix this by using a default initial value for TX. Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200316025232.1167-1-ricky_wu@realtek.com [Ulf: Updated changelog] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Fix impossible conditionRui Feng2020-01-141-5/+6
| | | | | | | | | A u8 can only go up to 255, condition n > 396 is impossible, so change u8 to u16. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Link: https://lore.kernel.org/r/1574214006-13540-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* misc: rtsx: Add support for RTS5261Rui Feng2019-11-141-0/+792
Add support for new chip rts5261. In order to support rts5261, the definitions of some internal registers and workflow have to be modified and are different from its predecessors. So we need this patch to ensure RTS5261 can work. Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> Link: https://lore.kernel.org/r/1571645105-5028-1-git-send-email-rui_feng@realsil.com.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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