linux-kernel - Re: [PATCH 11/11] platform/x86: intel_cht_int33fe: Add mux mappings for the Type-C port

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Date:   Sat, 2 Sep 2017 13:42:59 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Peter Rosin <peda@...ntia.se>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        devel@...verdev.osuosl.org,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Sathyanarayanan Kuppuswamy Natarajan <sathyaosid@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        USB <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 11/11] platform/x86: intel_cht_int33fe: Add mux mappings
 for the Type-C port

On Sat, Sep 2, 2017 at 12:48 AM, Hans de Goede <hdegoede@...hat.com> wrote:
> We need to add mappings for the mux subsys to be able to find the
> muxes for the fusb302 driver to be able to control the PI3USB30532
> Type-C mux and the device/host mux integrated in the CHT SoC.
>

I suppose it will go via not PDx86 tree, so

Acked-by: Andy Shevchenko <andy.shevchenko@...il.com>

> Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> ---
>  drivers/platform/x86/Kconfig             |  1 +
>  drivers/platform/x86/intel_cht_int33fe.c | 23 +++++++++++++++++++++++
>  2 files changed, 24 insertions(+)
>
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index c5554577681a..4256e05ee584 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -794,6 +794,7 @@ config ACPI_CMPC
>  config INTEL_CHT_INT33FE
>         tristate "Intel Cherry Trail ACPI INT33FE Driver"
>         depends on X86 && ACPI && I2C && REGULATOR
> +       select MULTIPLEXER
>         ---help---
>           This driver add support for the INT33FE ACPI device found on
>           some Intel Cherry Trail devices.
> diff --git a/drivers/platform/x86/intel_cht_int33fe.c b/drivers/platform/x86/intel_cht_int33fe.c
> index 24a1662be81d..611b8af9cefd 100644
> --- a/drivers/platform/x86/intel_cht_int33fe.c
> +++ b/drivers/platform/x86/intel_cht_int33fe.c
> @@ -24,6 +24,7 @@
>  #include <linux/i2c.h>
>  #include <linux/interrupt.h>
>  #include <linux/module.h>
> +#include <linux/mux/consumer.h>
>  #include <linux/regulator/consumer.h>
>  #include <linux/slab.h>
>
> @@ -35,6 +36,19 @@ struct cht_int33fe_data {
>         struct i2c_client *pi3usb30532;
>  };
>
> +static struct mux_lookup cht_int33fe_mux_lookup[] = {
> +       {
> +               .provider = "i2c-pi3usb30532",
> +               .dev_id   = "i2c-fusb302",
> +               .mux_name = "type-c-mode-mux",
> +       },
> +       {
> +               .provider = "intel_cht_usb_mux",
> +               .dev_id   = "i2c-fusb302",
> +               .mux_name = "usb-role-mux",
> +       },
> +};
> +
>  /*
>   * Grrr I severly dislike buggy BIOS-es. At least one BIOS enumerates
>   * the max17047 both through the INT33FE ACPI device (it is right there
> @@ -170,6 +184,9 @@ static int cht_int33fe_probe(struct i2c_client *client)
>         board_info.properties = fusb302_props;
>         board_info.irq = fusb302_irq;
>
> +       mux_add_table(cht_int33fe_mux_lookup,
> +                     ARRAY_SIZE(cht_int33fe_mux_lookup));
> +
>         data->fusb302 = i2c_acpi_new_device(dev, 2, &board_info);
>         if (!data->fusb302)
>                 goto out_unregister_max17047;
> @@ -193,6 +210,9 @@ static int cht_int33fe_probe(struct i2c_client *client)
>         if (data->max17047)
>                 i2c_unregister_device(data->max17047);
>
> +       mux_remove_table(cht_int33fe_mux_lookup,
> +                     ARRAY_SIZE(cht_int33fe_mux_lookup));
> +
>         return -EPROBE_DEFER; /* Wait for the i2c-adapter to load */
>  }
>
> @@ -205,6 +225,9 @@ static int cht_int33fe_remove(struct i2c_client *i2c)
>         if (data->max17047)
>                 i2c_unregister_device(data->max17047);
>
> +       mux_remove_table(cht_int33fe_mux_lookup,
> +                     ARRAY_SIZE(cht_int33fe_mux_lookup));
> +
>         return 0;
>  }
>
> --
> 2.13.5
>



-- 
With Best Regards,
Andy Shevchenko