Hi, Adrian
On Wed, Apr 12, 2023 at 9:10 PM Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
>
> On 31/03/23 13:55, Victor Shih wrote:
> > This patch adds sdhci-uhs2.c as a module for UHS-II support.
> > This is a skelton for further development in this patch series.
> >
> > This kernel configuration, CONFIG_MMC_SDHCI_UHS2, will be used
> > in the following commits to indicate UHS-II specific code in sdhci
> > controllers.
> >
> > Signed-off-by: Ben Chuang <ben.chuang@xxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
> > Signed-off-by: Victor Shih <victor.shih@xxxxxxxxxxxxxxxxxxx>
> > ---
> > drivers/mmc/host/Kconfig | 9 +++++++
> > drivers/mmc/host/Makefile | 1 +
> > drivers/mmc/host/sdhci-uhs2.c | 46 +++++++++++++++++++++++++++++++++++
> > 3 files changed, 56 insertions(+)
> > create mode 100644 drivers/mmc/host/sdhci-uhs2.c
> >
> > diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> > index 4745fe217ade..06ab111eba3b 100644
> > --- a/drivers/mmc/host/Kconfig
> > +++ b/drivers/mmc/host/Kconfig
> > @@ -98,6 +98,15 @@ config MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
> >
> > This is the case for the Nintendo Wii SDHCI.
> >
> > +config MMC_SDHCI_UHS2
> > + tristate "UHS2 support on SDHCI controller"
> > + depends on MMC_SDHCI
> > + help
> > + This option is selected by SDHCI controller drivers that want to
> > + support UHS2-capable devices.
> > +
> > + If you have a controller with this feature, say Y or M here.
> > +
> > config MMC_SDHCI_PCI
> > tristate "SDHCI support on PCI bus"
> > depends on MMC_SDHCI && PCI
> > diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
> > index a693fa3d3f1c..799f21d1f81f 100644
> > --- a/drivers/mmc/host/Makefile
> > +++ b/drivers/mmc/host/Makefile
> > @@ -11,6 +11,7 @@ obj-$(CONFIG_MMC_PXA) += pxamci.o
> > obj-$(CONFIG_MMC_MXC) += mxcmmc.o
> > obj-$(CONFIG_MMC_MXS) += mxs-mmc.o
> > obj-$(CONFIG_MMC_SDHCI) += sdhci.o
> > +obj-$(CONFIG_MMC_SDHCI_UHS2) += sdhci-uhs2.o
> > obj-$(CONFIG_MMC_SDHCI_PCI) += sdhci-pci.o
> > sdhci-pci-y += sdhci-pci-core.o sdhci-pci-o2micro.o sdhci-pci-arasan.o \
> > sdhci-pci-dwc-mshc.o sdhci-pci-gli.o
> > diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc/host/sdhci-uhs2.c
> > new file mode 100644
> > index 000000000000..8e15bd0dadee
> > --- /dev/null
> > +++ b/drivers/mmc/host/sdhci-uhs2.c
> > @@ -0,0 +1,46 @@
> > +// SPDX-License-Identifier: GPL-2.0-or-later
> > +/*
> > + * linux/drivers/mmc/host/sdhci_uhs2.c - Secure Digital Host Controller
> > + * Interface driver
> > + *
> > + * Copyright (C) 2014 Intel Corp, All Rights Reserved.
> > + * Copyright (C) 2020 Genesys Logic, Inc.
> > + * Authors: Ben Chuang <ben.chuang@xxxxxxxxxxxxxxxxxxx>
> > + * Copyright (C) 2020 Linaro Limited
> > + * Author: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
> > + */
> > +
> > +#include <linux/module.h>
> > +
> > +#include "sdhci.h"
> > +#include "sdhci-uhs2.h"
> > +
> > +#define DRIVER_NAME "sdhci_uhs2"
> > +#define DBG(f, x...) \
> > + pr_debug(DRIVER_NAME " [%s()]: " f, __func__, ## x)
> > +
> > +/*****************************************************************************\
> > + * *
> > + * Driver init/exit *
> > + * *
> > +\*****************************************************************************/
> > +
> > +static int sdhci_uhs2_host_ops_init(struct sdhci_host *host)
> > +{
> > + return 0;
> > +}
> > +
> > +static int __init sdhci_uhs2_mod_init(void)
> > +{
> > + return 0;
> > +}
> > +module_init(sdhci_uhs2_mod_init);
> > +
> > +static void __exit sdhci_uhs2_mod_exit(void)
> > +{
> > +}
> > +module_exit(sdhci_uhs2_mod_exit);
> > +
> > +MODULE_AUTHOR("Intel, Genesys Logic, Linaro");
> > +MODULE_DESCRIPTION("MMC UHS-II Support");
> > +MODULE_LICENSE("GPL v2");
>
> Prefer "GPL" over "GPL v2" - see commit bf7fbeeae6db ("module: Cure the MODULE_LICENSE "GPL" vs. "GPL v2" bogosity")
>
>
I will update it to the V8 version.
Thanks, Victor Shih
