On Wed, Jan 4, 2023 at 6:05 PM Chris Morgan <macroalpha82@xxxxxxxxx> wrote: [...] > > > [ 0.989545] mmc2: new high speed SDIO card at address 0001 > > > [ 0.989993] rtw_8821cs mmc2:0001:1: Firmware version 24.8.0, H2C version 12 > > > [ 1.005684] rtw_8821cs mmc2:0001:1: sdio write32 failed (0x14): -110 > > > [ 1.005737] rtw_8821cs mmc2:0001:1: sdio read32 failed (0x1080): -110 > > > [ 1.005789] rtw_8821cs mmc2:0001:1: sdio write32 failed (0x11080): -110 > > > [ 1.005840] rtw_8821cs mmc2:0001:1: sdio read8 failed (0x3): -110 > > > [ 1.005920] rtw_8821cs mmc2:0001:1: sdio read8 failed (0x1103): -110 > > > [ 1.005998] rtw_8821cs mmc2:0001:1: sdio read32 failed (0x80): -110 > > > [ 1.006078] rtw_8821cs mmc2:0001:1: sdio read32 failed (0x1700): -110 > > The error starts with a write to register 0x14 (REG_SDIO_HIMR), which > > happens right after configuring RX aggregation. > > Can you please try two modifications inside > > drivers/net/wireless/realtek/rtw88/sdio.c: > > 1. inside the rtw_sdio_start() function: change > > "rtw_sdio_rx_aggregation(rtwdev, false);" to > > "rtw_sdio_rx_aggregation(rtwdev, true);" > > No change, still receive identical issue. > > > 2. if 1) does not work: remove the call to rtw_sdio_rx_aggregation() > > from rtw_sdio_start() > > > > Same here, still receive identical issue. Thanks for testing and for reporting back! Looking back at it again: I think I mis-interpreted your error output. I think it's actually failing in __rtw_mac_init_system_cfg() Can you please try the latest code from [0] (ignoring any changes I recommended previously)? There's two bug fixes in there (compared to this series) which may solve the issue that you are seeing: - fix typos to use "if (!*err_ret ..." (to read the error code) instead of "if (!err_ret ..." (which just checks if a non-null pointer was passed) in rtw_sdio_read_indirect{8,32} - change buf[0] to buf[i] in rtw_sdio_read_indirect_bytes These fixes will be part of v2 of this series anyways. Best regards, Martin [0] https://github.com/xdarklight/linux/tree/d115a8631d208996510822f0805df5dfc8dfb548