linux-kernel - Re: [linux-sunxi] [PATCH 11/19] drm: sun4i: Add composite output

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Message-ID: <CANwerB0tva90mj7Anits0gfecQuLcDZ-BEctc0VNAY+Oq0dLbA@mail.gmail.com>
Date:	Mon, 2 Nov 2015 13:53:20 +1100
From:	Jonathan Liu <net147@...il.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Mike Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	David Airlie <airlied@...ux.ie>,
	Thierry Reding <thierry.reding@...il.com>,
	devicetree <devicetree@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linux-sunxi@...glegroups.com,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Chen-Yu Tsai <wens@...e.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Alexander Kaplan <alex@...tthing.co>,
	Wynter Woods <wynter@...tthing.co>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Rob Clark <robdclark@...il.com>,
	Daniel Vetter <daniel@...ll.ch>
Subject: Re: [linux-sunxi] [PATCH 11/19] drm: sun4i: Add composite output

On 31 October 2015 at 01:20, Maxime Ripard
<maxime.ripard@...e-electrons.com> wrote:
> Some Allwinner SoCs have an IP called the TV encoder that is used to output
> composite and VGA signals. In such a case, we need to use the second TCON
> channel.
>
> Add support for that TV encoder.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> ---
>  drivers/gpu/drm/sun4i/Makefile    |   1 +
>  drivers/gpu/drm/sun4i/sun4i_drv.c |  10 +-
>  drivers/gpu/drm/sun4i/sun4i_tv.c  | 532 ++++++++++++++++++++++++++++++++++++++
>  drivers/gpu/drm/sun4i/sun4i_tv.h  |  18 ++
>  4 files changed, 560 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/gpu/drm/sun4i/sun4i_tv.c
>  create mode 100644 drivers/gpu/drm/sun4i/sun4i_tv.h
>
> diff --git a/drivers/gpu/drm/sun4i/Makefile b/drivers/gpu/drm/sun4i/Makefile
> index 4d230b658a05..fc0dc8be82d9 100644
> --- a/drivers/gpu/drm/sun4i/Makefile
> +++ b/drivers/gpu/drm/sun4i/Makefile
> @@ -6,5 +6,6 @@ sun4i-drm-y += sun4i_layer.o
>  sun4i-drm-y += sun4i_tcon.o
>
>  sun4i-drm-y += sun4i_rgb.o
> +sun4i-drm-y += sun4i_tv.o
>
>  obj-$(CONFIG_DRM_SUN4I)                += sun4i-drm.o
> diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
> index f2c9c8a2eb75..3cf7a9e89afa 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_drv.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
> @@ -22,6 +22,7 @@
>  #include "sun4i_layer.h"
>  #include "sun4i_rgb.h"
>  #include "sun4i_tcon.h"
> +#include "sun4i_tv.h"
>
>  static void sun4i_drv_preclose(struct drm_device *drm,
>                                struct drm_file *file_priv)
> @@ -134,12 +135,18 @@ static int sun4i_drv_load(struct drm_device *drm, unsigned long flags)
>                 goto err_free_crtc;
>         }
>
> +       ret = sun4i_tv_init(drm);
> +       if (ret) {
> +               dev_err(drm->dev, "Couldn't create our RGB output\n");

RGB should be composite. Seems like a copy-paste error.

> +               goto err_free_rgb;
> +       }
> +
>         /* Create our framebuffer */
>         drv->fbdev = sun4i_framebuffer_init(drm);
>         if (IS_ERR(drv->fbdev)) {
>                 dev_err(drm->dev, "Couldn't create our framebuffer\n");
>                 ret = PTR_ERR(drv->fbdev);
> -               goto err_free_rgb;
> +               goto err_free_tv;
>         }
>
>         /* Enable connectors polling */

Regards,
Jonathan
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