linux-kernel - Re: [PATCH] drm/tidss: Add MIT license along with GPL-2.0

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Message-ID: <c501c5d3-d715-4ac5-98be-35d23ad1cfbe@kernel.org>
Date: Thu, 12 Sep 2024 22:47:31 +0200
From: Danilo Krummrich <dakr@...nel.org>
To: Devarsh Thakkar <devarsht@...com>
Cc: jyri.sarha@....fi, tomi.valkeinen@...asonboard.com, airlied@...il.com,
 daniel@...ll.ch, maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
 tzimmermann@...e.de, dri-devel@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org, praneeth@...com, nm@...com, vigneshr@...com,
 r-ravikumar@...com, j-choudhary@...com, grandmaster@...klimov.de,
 caihuoqing@...du.com, ahalaney@...hat.com, cai.huoqing@...ux.dev,
 colin.i.king@...il.com, javierm@...hat.com, dmitry.baryshkov@...aro.org,
 geert+renesas@...der.be, laurent.pinchart@...asonboard.com,
 u.kleine-koenig@...gutronix.de, robh@...nel.org, sam@...nborg.org,
 simona.vetter@...ll.ch, ville.syrjala@...ux.intel.com,
 wangxiaojun11@...wei.com, yuanjilin@...rlc.com, yuehaibing@...wei.com
Subject: Re: [PATCH] drm/tidss: Add MIT license along with GPL-2.0

On 9/12/24 7:11 PM, Devarsh Thakkar wrote:
> Modify license to include dual licensing as GPL-2.0-only OR MIT license for
> tidss display driver. This allows other operating system ecosystems such as
> Zephyr and also the commercial firmwares to refer and derive code from this
> display driver in a more permissive manner.
> 
> Signed-off-by: Devarsh Thakkar <devarsht@...com>

My only contribution to this driver was through DRM refactorings,
but anyways:

Acked-by: Danilo Krummrich <dakr@...nel.org>

> ---
>   drivers/gpu/drm/tidss/Makefile            | 2 +-
>   drivers/gpu/drm/tidss/tidss_crtc.c        | 2 +-
>   drivers/gpu/drm/tidss/tidss_crtc.h        | 2 +-
>   drivers/gpu/drm/tidss/tidss_dispc.c       | 2 +-
>   drivers/gpu/drm/tidss/tidss_dispc.h       | 2 +-
>   drivers/gpu/drm/tidss/tidss_dispc_regs.h  | 2 +-
>   drivers/gpu/drm/tidss/tidss_drv.c         | 2 +-
>   drivers/gpu/drm/tidss/tidss_drv.h         | 2 +-
>   drivers/gpu/drm/tidss/tidss_encoder.c     | 2 +-
>   drivers/gpu/drm/tidss/tidss_encoder.h     | 2 +-
>   drivers/gpu/drm/tidss/tidss_irq.c         | 2 +-
>   drivers/gpu/drm/tidss/tidss_irq.h         | 2 +-
>   drivers/gpu/drm/tidss/tidss_kms.c         | 2 +-
>   drivers/gpu/drm/tidss/tidss_kms.h         | 2 +-
>   drivers/gpu/drm/tidss/tidss_plane.c       | 2 +-
>   drivers/gpu/drm/tidss/tidss_plane.h       | 2 +-
>   drivers/gpu/drm/tidss/tidss_scale_coefs.c | 2 +-
>   drivers/gpu/drm/tidss/tidss_scale_coefs.h | 2 +-
>   18 files changed, 18 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tidss/Makefile b/drivers/gpu/drm/tidss/Makefile
> index 312645271014..c67ff32d02e1 100644
> --- a/drivers/gpu/drm/tidss/Makefile
> +++ b/drivers/gpu/drm/tidss/Makefile
> @@ -1,4 +1,4 @@
> -# SPDX-License-Identifier: GPL-2.0
> +# SPDX-License-Identifier: GPL-2.0 OR MIT
>   
>   tidss-y := tidss_crtc.o \
>   	tidss_drv.o \
> diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
> index 94f8e3178df5..43dfbead9fa9 100644
> --- a/drivers/gpu/drm/tidss/tidss_crtc.c
> +++ b/drivers/gpu/drm/tidss/tidss_crtc.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_crtc.h b/drivers/gpu/drm/tidss/tidss_crtc.h
> index 040d1205496b..da03873e2ef0 100644
> --- a/drivers/gpu/drm/tidss/tidss_crtc.h
> +++ b/drivers/gpu/drm/tidss/tidss_crtc.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_dispc.c b/drivers/gpu/drm/tidss/tidss_dispc.c
> index 1ad711f8d2a8..3321a1c731b1 100644
> --- a/drivers/gpu/drm/tidss/tidss_dispc.c
> +++ b/drivers/gpu/drm/tidss/tidss_dispc.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2016-2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Jyri Sarha <jsarha@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_dispc.h b/drivers/gpu/drm/tidss/tidss_dispc.h
> index 086327d51a90..e6e4396a0d63 100644
> --- a/drivers/gpu/drm/tidss/tidss_dispc.h
> +++ b/drivers/gpu/drm/tidss/tidss_dispc.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_dispc_regs.h b/drivers/gpu/drm/tidss/tidss_dispc_regs.h
> index 13feedfe5d6d..6e27b6d444ab 100644
> --- a/drivers/gpu/drm/tidss/tidss_dispc_regs.h
> +++ b/drivers/gpu/drm/tidss/tidss_dispc_regs.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2016-2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Jyri Sarha <jsarha@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
> index d15f836dca95..b060e420ddec 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.c
> +++ b/drivers/gpu/drm/tidss/tidss_drv.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
> index d7f27b0b0315..d4209234f59c 100644
> --- a/drivers/gpu/drm/tidss/tidss_drv.h
> +++ b/drivers/gpu/drm/tidss/tidss_drv.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_encoder.c b/drivers/gpu/drm/tidss/tidss_encoder.c
> index 17a86bed8054..9749fbc0e056 100644
> --- a/drivers/gpu/drm/tidss/tidss_encoder.c
> +++ b/drivers/gpu/drm/tidss/tidss_encoder.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_encoder.h b/drivers/gpu/drm/tidss/tidss_encoder.h
> index 3e561d6b1e83..85db3835a335 100644
> --- a/drivers/gpu/drm/tidss/tidss_encoder.h
> +++ b/drivers/gpu/drm/tidss/tidss_encoder.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_irq.c b/drivers/gpu/drm/tidss/tidss_irq.c
> index 604334ef526a..51939744695a 100644
> --- a/drivers/gpu/drm/tidss/tidss_irq.c
> +++ b/drivers/gpu/drm/tidss/tidss_irq.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_irq.h b/drivers/gpu/drm/tidss/tidss_irq.h
> index b512614d5863..cbfd684ecd26 100644
> --- a/drivers/gpu/drm/tidss/tidss_irq.h
> +++ b/drivers/gpu/drm/tidss/tidss_irq.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
> index f371518f8697..05afd57b9128 100644
> --- a/drivers/gpu/drm/tidss/tidss_kms.c
> +++ b/drivers/gpu/drm/tidss/tidss_kms.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_kms.h b/drivers/gpu/drm/tidss/tidss_kms.h
> index 632d79f5983f..69b6bca14550 100644
> --- a/drivers/gpu/drm/tidss/tidss_kms.h
> +++ b/drivers/gpu/drm/tidss/tidss_kms.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
> index a5d86822c9e3..37ffaea15c73 100644
> --- a/drivers/gpu/drm/tidss/tidss_plane.c
> +++ b/drivers/gpu/drm/tidss/tidss_plane.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_plane.h b/drivers/gpu/drm/tidss/tidss_plane.h
> index e933e158b617..3e00bc853813 100644
> --- a/drivers/gpu/drm/tidss/tidss_plane.h
> +++ b/drivers/gpu/drm/tidss/tidss_plane.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Tomi Valkeinen <tomi.valkeinen@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_scale_coefs.c b/drivers/gpu/drm/tidss/tidss_scale_coefs.c
> index c2b84fea89a5..686ea63e0f45 100644
> --- a/drivers/gpu/drm/tidss/tidss_scale_coefs.c
> +++ b/drivers/gpu/drm/tidss/tidss_scale_coefs.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Jyri Sarha <jsarha@...com>
> diff --git a/drivers/gpu/drm/tidss/tidss_scale_coefs.h b/drivers/gpu/drm/tidss/tidss_scale_coefs.h
> index 9c560d0fdac0..4689109fe560 100644
> --- a/drivers/gpu/drm/tidss/tidss_scale_coefs.h
> +++ b/drivers/gpu/drm/tidss/tidss_scale_coefs.h
> @@ -1,4 +1,4 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
>   /*
>    * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
>    * Author: Jyri Sarha <jsarha@...com>