Re: [PATCH v4 9/9] wifi: rtw88: Add support for the SDIO based RTL8821CS chipset

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Please disregard. I was building against linux main not wireless-next.
I have tested and it appears to be working well, even suspend works now.

On Tue, Apr 4, 2023 at 12:38 PM Chris Morgan <macroalpha82@xxxxxxxxx> wrote:
>
> On Mon, Apr 03, 2023 at 10:24:40PM +0200, Martin Blumenstingl wrote:
> > Wire up RTL8821CS chipset support using the new rtw88 SDIO HCI code as
> > well as the existing RTL8821C chipset code.
> >
> > Reviewed-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
> > Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
> > ---
>
> Unfortunately this version isn't working for me currently. When I try
> to probe the driver I get an error of "mac power on failed". After some
> debugging it looks like there are some SDIO bits in the
> rtw_pwr_seq_parser() function that are missing, causing it to return
> -EINVAL. I tried to add those specific bits back based on your latest
> github, but then I get additonal errors like "failed to read efuse map"
> and other errors. I'm wondering if there are bits that might be missing
> for the rtl8821cs in this revision.
>
> Thank you,
> Chris Morgan.
>
> > Changes since v3:
> > - add Ping-Ke's reviewed-by
> >
> > Changes since v2:
> > - sort includes alphabetically as suggested by Ping-Ke
> > - add missing #include "main.h" (after it has been removed from sdio.h
> >   in patch 2 from this series)
> >
> > Changes since v1:
> > - use /* ... */ style for copyright comments
> >
> >
> >  drivers/net/wireless/realtek/rtw88/Kconfig    | 11 ++++++
> >  drivers/net/wireless/realtek/rtw88/Makefile   |  3 ++
> >  .../net/wireless/realtek/rtw88/rtw8821cs.c    | 36 +++++++++++++++++++
> >  3 files changed, 50 insertions(+)
> >  create mode 100644 drivers/net/wireless/realtek/rtw88/rtw8821cs.c
> >
> > diff --git a/drivers/net/wireless/realtek/rtw88/Kconfig b/drivers/net/wireless/realtek/rtw88/Kconfig
> > index 6b65da81127f..29eb2f8e0eb7 100644
> > --- a/drivers/net/wireless/realtek/rtw88/Kconfig
> > +++ b/drivers/net/wireless/realtek/rtw88/Kconfig
> > @@ -133,6 +133,17 @@ config RTW88_8821CE
> >
> >         802.11ac PCIe wireless network adapter
> >
> > +config RTW88_8821CS
> > +     tristate "Realtek 8821CS SDIO wireless network adapter"
> > +     depends on MMC
> > +     select RTW88_CORE
> > +     select RTW88_SDIO
> > +     select RTW88_8821C
> > +     help
> > +       Select this option will enable support for 8821CS chipset
> > +
> > +       802.11ac SDIO wireless network adapter
> > +
> >  config RTW88_8821CU
> >       tristate "Realtek 8821CU USB wireless network adapter"
> >       depends on USB
> > diff --git a/drivers/net/wireless/realtek/rtw88/Makefile b/drivers/net/wireless/realtek/rtw88/Makefile
> > index 6105c2745bda..82979b30ae8d 100644
> > --- a/drivers/net/wireless/realtek/rtw88/Makefile
> > +++ b/drivers/net/wireless/realtek/rtw88/Makefile
> > @@ -59,6 +59,9 @@ rtw88_8821c-objs            := rtw8821c.o rtw8821c_table.o
> >  obj-$(CONFIG_RTW88_8821CE)   += rtw88_8821ce.o
> >  rtw88_8821ce-objs            := rtw8821ce.o
> >
> > +obj-$(CONFIG_RTW88_8821CS)   += rtw88_8821cs.o
> > +rtw88_8821cs-objs            := rtw8821cs.o
> > +
> >  obj-$(CONFIG_RTW88_8821CU)   += rtw88_8821cu.o
> >  rtw88_8821cu-objs            := rtw8821cu.o
> >
> > diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821cs.c b/drivers/net/wireless/realtek/rtw88/rtw8821cs.c
> > new file mode 100644
> > index 000000000000..a359413369a4
> > --- /dev/null
> > +++ b/drivers/net/wireless/realtek/rtw88/rtw8821cs.c
> > @@ -0,0 +1,36 @@
> > +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
> > +/* Copyright(c) Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
> > + */
> > +
> > +#include <linux/mmc/sdio_func.h>
> > +#include <linux/mmc/sdio_ids.h>
> > +#include <linux/module.h>
> > +#include "main.h"
> > +#include "rtw8821c.h"
> > +#include "sdio.h"
> > +
> > +static const struct sdio_device_id rtw_8821cs_id_table[] =  {
> > +     {
> > +             SDIO_DEVICE(SDIO_VENDOR_ID_REALTEK,
> > +                         SDIO_DEVICE_ID_REALTEK_RTW8821CS),
> > +             .driver_data = (kernel_ulong_t)&rtw8821c_hw_spec,
> > +     },
> > +     {}
> > +};
> > +MODULE_DEVICE_TABLE(sdio, rtw_8821cs_id_table);
> > +
> > +static struct sdio_driver rtw_8821cs_driver = {
> > +     .name = "rtw_8821cs",
> > +     .probe = rtw_sdio_probe,
> > +     .remove = rtw_sdio_remove,
> > +     .id_table = rtw_8821cs_id_table,
> > +     .drv = {
> > +             .pm = &rtw_sdio_pm_ops,
> > +             .shutdown = rtw_sdio_shutdown,
> > +     }
> > +};
> > +module_sdio_driver(rtw_8821cs_driver);
> > +
> > +MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>");
> > +MODULE_DESCRIPTION("Realtek 802.11ac wireless 8821cs driver");
> > +MODULE_LICENSE("Dual BSD/GPL");




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