[alsa-devel] [PATCH v2 2/2] ASoC: samsung: i2s: Fix multiple "IIS multi" devices initialization

[Krzysztof Kozlowski]

On Tue, 19 Feb 2019 at 16:20, Sylwester Nawrocki <s.nawrocki at samsung.com> wrote:
>
> On some SoCs (e.g. Exynos5433) there are multiple "IIS multi audio
> interfaces" and the driver will try to register there multiple times
> same platform device for the secondary FIFO, which of course fails
> miserably.  To fix this we derive the secondary platform device name
> from the primary device name. The secondary device name will now
> be <primary_dev_name>-sec instead of fixed "samsung-i2s-sec".
>
> The fixed platform_device_id table entry is removed as the secondary
> device name is now dynamic and device/driver matching is done through
> driver_override.
>
> Reported-by: Marek Szyprowski <m.szyprowski at samsung.com>
> Suggested-by: Marek Szyprowski <m.szyprowski at samsung.com>
> Signed-off-by: Sylwester Nawrocki <s.nawrocki at samsung.com>
> ---
> Changes since v1:
>  - fixed pdev->driver_override assignment,
>  - ensure there is no need to release any resources claimed
>    in i2s_create_secondary_device() function when that function fails.
> ---
>  sound/soc/samsung/i2s.c    | 50 +++++++++++++++++++++++++-------------
>  sound/soc/samsung/odroid.c |  2 +-
>  2 files changed, 34 insertions(+), 18 deletions(-)

Acked-by: Krzysztof Kozlowski <krzk at kernel.org>

Best regards,
Krzysztof