[PATCH 5/5] ARM: Tegra: Enable Harmony audio support

[Olof Johansson]

Stephen,

Since this depends on i2c, and registers one of the adapters to do it,
we should just get the adapters registered separately (all of them)
before this. I was holding off that part of board code since the i2c
driver went up that maintainer path instead, but if Colin pulls it
into tegra for-next, then I'll go ahead with those peices as well.

I'll pick up the board-side patches from this series (1, 4, 5), and
Colin will take the core patches (2, 3).


On Wed, Feb 23, 2011 at 10:58 AM, Stephen Warren <swarren at nvidia.com> wrote:

> +static struct wm8903_platform_data harmony_wm8903_pdata = {
> +       .irq_active_low = 0,
> +       .micdet_cfg = 0,
> +       .micdet_delay = 100,
> +       .gpio_base = GPIO_WM8903(0),
> +       .gpio_cfg = {
> +               WM8903_GPIO_NO_CONFIG,
> +               WM8903_GPIO_NO_CONFIG,
> +               0,
> +               WM8903_GPIO_NO_CONFIG,
> +               WM8903_GPIO_NO_CONFIG,
> +       },
> +};
[...]
> diff --git a/arch/arm/mach-tegra/board-harmony.h b/arch/arm/mach-tegra/board-harmony.h
> index 4fe33b8..fbf2304 100644
> --- a/arch/arm/mach-tegra/board-harmony.h
> +++ b/arch/arm/mach-tegra/board-harmony.h
> @@ -17,12 +17,19 @@
>  #ifndef _MACH_TEGRA_BOARD_HARMONY_H
>  #define _MACH_TEGRA_BOARD_HARMONY_H
>
> +#define GPIO_WM8903(_x_)               (TEGRA_NR_GPIOS + (_x_))


The above assumes that wm8903 is the GPIO controller that gets
allocated the numbers right after native tegra gpio. That might not be
the case on all boards, since the TPS PMIC has some as well, I
believe.

Does it need a hardcoded GPIO base, or can it use the dynamic one
(i.e. use -1 here)? I don't even see any reference to gpio_base in the
driver...


-Olof