diff mbox series

[04/11] drm/tinydrm: Remove tinydrm_display_pipe_init()

Message ID 20190120114318.49199-5-noralf@tronnes.org (mailing list archive)
State New, archived
Headers show
Series drm/tinydrm: Remove tinydrm_device | expand

Commit Message

Noralf Trønnes Jan. 20, 2019, 11:43 a.m. UTC
Further strip down tinydrm.ko and switch to drm_simple_connector_create().

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
---
 Documentation/gpu/tinydrm.rst               |   3 -
 drivers/gpu/drm/tinydrm/core/Makefile       |   2 +-
 drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c | 183 --------------------
 drivers/gpu/drm/tinydrm/mipi-dbi.c          |  24 ++-
 drivers/gpu/drm/tinydrm/repaper.c           |  16 +-
 drivers/gpu/drm/tinydrm/st7586.c            |  19 +-
 include/drm/tinydrm/tinydrm.h               |   9 -
 7 files changed, 43 insertions(+), 213 deletions(-)
 delete mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c

Comments

Sam Ravnborg Jan. 21, 2019, 6:30 a.m. UTC | #1
Hi Noralf.

On Sun, Jan 20, 2019 at 12:43:11PM +0100, Noralf Trønnes wrote:
> Further strip down tinydrm.ko and switch to drm_simple_connector_create().

It is nice how the tinydrm drivers goes from special drivers to small
drivers with a little added to the core.

Two minor comments below. With that addressed/processed it has:
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>

> 
> Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
> ---
>  Documentation/gpu/tinydrm.rst               |   3 -
>  drivers/gpu/drm/tinydrm/core/Makefile       |   2 +-
>  drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c | 183 --------------------
>  drivers/gpu/drm/tinydrm/mipi-dbi.c          |  24 ++-
>  drivers/gpu/drm/tinydrm/repaper.c           |  16 +-
>  drivers/gpu/drm/tinydrm/st7586.c            |  19 +-
>  include/drm/tinydrm/tinydrm.h               |   9 -
>  7 files changed, 43 insertions(+), 213 deletions(-)
>  delete mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
> 
> diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> index 918f77c7de34..d1d546f3a664 100644
> --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
> +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> @@ -391,7 +391,13 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
>  {
>  	size_t bufsize = mode->vdisplay * mode->hdisplay * sizeof(u16);
>  	struct tinydrm_device *tdev = &mipi->tinydrm;
> +	struct drm_connector *connector;
> +	struct drm_device *drm;
>  	int ret;
> +	static const uint64_t modifiers[] = {
> +		DRM_FORMAT_MOD_LINEAR,
> +		DRM_FORMAT_MOD_INVALID
> +	};
>  
>  	if (!mipi->command)
>  		return -EINVAL;
> @@ -406,18 +412,22 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
>  	if (ret)
>  		return ret;
>  
> -	/* TODO: Maybe add DRM_MODE_CONNECTOR_SPI */
> -	ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
> -					DRM_MODE_CONNECTOR_VIRTUAL,
> -					mipi_dbi_formats,
> -					ARRAY_SIZE(mipi_dbi_formats), mode,
> -					rotation);
> +	drm = tdev->drm;
> +
> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, rotation);
Line length too long.
This goes for all calls to drm_simple_connector_create() in this patch.

We are loosing the comment:
"TODO: Maybe add DRM_MODE_CONNECTOR_SPI"
On purpose?

> +	if (IS_ERR(connector))
> +		return PTR_ERR(connector);
> +
> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, pipe_funcs,
> +					   mipi_dbi_formats, ARRAY_SIZE(mipi_dbi_formats),
> +					   modifiers, connector);
>  	if (ret)
>  		return ret;
>  
>  	drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
>  
> -	tdev->drm->mode_config.preferred_depth = 16;
> +	drm_simple_connector_set_mode_config(connector);
> +	drm->mode_config.preferred_depth = 16;
>  	mipi->rotation = rotation;
>  
>  	drm_mode_config_reset(tdev->drm);
> diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c
> index 72d30151ecd8..1d551744cc9b 100644
> --- a/drivers/gpu/drm/tinydrm/repaper.c
> +++ b/drivers/gpu/drm/tinydrm/repaper.c
> @@ -924,12 +924,14 @@ static int repaper_probe(struct spi_device *spi)
>  	const struct drm_display_mode *mode;
>  	const struct spi_device_id *spi_id;
>  	const struct of_device_id *match;
> +	struct drm_connector *connector;
>  	struct device *dev = &spi->dev;
>  	struct tinydrm_device *tdev;
>  	enum repaper_model model;
>  	const char *thermal_zone;
>  	struct repaper_epd *epd;
>  	size_t line_buffer_size;
> +	struct drm_device *drm;
>  	int ret;
>  
>  	match = of_match_device(repaper_of_match, dev);
> @@ -1069,13 +1071,19 @@ static int repaper_probe(struct spi_device *spi)
>  	if (ret)
>  		return ret;
>  
> -	ret = tinydrm_display_pipe_init(tdev, &repaper_pipe_funcs,
> -					DRM_MODE_CONNECTOR_VIRTUAL,
> -					repaper_formats,
> -					ARRAY_SIZE(repaper_formats), mode, 0);
> +	drm = tdev->drm;
> +
> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, 0);
> +	if (IS_ERR(connector))
> +		return PTR_ERR(connector);
> +
> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, &repaper_pipe_funcs,
> +					   repaper_formats, ARRAY_SIZE(repaper_formats),
> +					   NULL, connector);
In mipi-dbi modifiers are specified, like done in tiny-core.
But this, and the other drivers, do not specify any modifiers.

Any specific reason why it is needed in one place but not the others?
Note: I do not really know the purpose, and the comment is alone triggered
because there was a difference in the calls to drm_simple_display_pipe_init()

>  	if (ret)
>  		return ret;
>  
> +	drm_simple_connector_set_mode_config(connector);

No need to set preferred_depth here?
(It is not in the original driver, so it seems to work without it)

>  	drm_mode_config_reset(tdev->drm);
>  	spi_set_drvdata(spi, tdev);
>
Daniel Vetter Jan. 21, 2019, 9:15 a.m. UTC | #2
On Sun, Jan 20, 2019 at 12:43:11PM +0100, Noralf Trønnes wrote:
> Further strip down tinydrm.ko and switch to drm_simple_connector_create().
> 
> Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
> ---
>  Documentation/gpu/tinydrm.rst               |   3 -
>  drivers/gpu/drm/tinydrm/core/Makefile       |   2 +-
>  drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c | 183 --------------------
>  drivers/gpu/drm/tinydrm/mipi-dbi.c          |  24 ++-
>  drivers/gpu/drm/tinydrm/repaper.c           |  16 +-
>  drivers/gpu/drm/tinydrm/st7586.c            |  19 +-
>  include/drm/tinydrm/tinydrm.h               |   9 -
>  7 files changed, 43 insertions(+), 213 deletions(-)
>  delete mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
> 
> diff --git a/Documentation/gpu/tinydrm.rst b/Documentation/gpu/tinydrm.rst
> index a913644bfc19..1ca726474af4 100644
> --- a/Documentation/gpu/tinydrm.rst
> +++ b/Documentation/gpu/tinydrm.rst
> @@ -17,9 +17,6 @@ Core functionality
>  .. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-core.c
>     :export:
>  
> -.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
> -   :export:
> -
>  Additional helpers
>  ==================
>  
> diff --git a/drivers/gpu/drm/tinydrm/core/Makefile b/drivers/gpu/drm/tinydrm/core/Makefile
> index fb221e6f8885..bf2df7326df7 100644
> --- a/drivers/gpu/drm/tinydrm/core/Makefile
> +++ b/drivers/gpu/drm/tinydrm/core/Makefile
> @@ -1,3 +1,3 @@
> -tinydrm-y := tinydrm-core.o tinydrm-pipe.o tinydrm-helpers.o
> +tinydrm-y := tinydrm-core.o tinydrm-helpers.o
>  
>  obj-$(CONFIG_DRM_TINYDRM) += tinydrm.o
> diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c b/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
> deleted file mode 100644
> index 323564329535..000000000000
> --- a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
> +++ /dev/null
> @@ -1,183 +0,0 @@
> -/*
> - * Copyright (C) 2016 Noralf Trønnes
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.
> - */
> -
> -#include <drm/drm_atomic_helper.h>
> -#include <drm/drm_crtc_helper.h>
> -#include <drm/drm_drv.h>
> -#include <drm/drm_gem_framebuffer_helper.h>
> -#include <drm/drm_modes.h>
> -#include <drm/drm_print.h>
> -#include <drm/tinydrm/tinydrm.h>
> -
> -struct tinydrm_connector {
> -	struct drm_connector base;
> -	struct drm_display_mode mode;
> -};
> -
> -static inline struct tinydrm_connector *
> -to_tinydrm_connector(struct drm_connector *connector)
> -{
> -	return container_of(connector, struct tinydrm_connector, base);
> -}
> -
> -static int tinydrm_connector_get_modes(struct drm_connector *connector)
> -{
> -	struct tinydrm_connector *tconn = to_tinydrm_connector(connector);
> -	struct drm_display_mode *mode;
> -
> -	mode = drm_mode_duplicate(connector->dev, &tconn->mode);
> -	if (!mode) {
> -		DRM_ERROR("Failed to duplicate mode\n");
> -		return 0;
> -	}
> -
> -	if (mode->name[0] == '\0')
> -		drm_mode_set_name(mode);
> -
> -	mode->type |= DRM_MODE_TYPE_PREFERRED;
> -	drm_mode_probed_add(connector, mode);
> -
> -	if (mode->width_mm) {
> -		connector->display_info.width_mm = mode->width_mm;
> -		connector->display_info.height_mm = mode->height_mm;
> -	}
> -
> -	return 1;
> -}
> -
> -static const struct drm_connector_helper_funcs tinydrm_connector_hfuncs = {
> -	.get_modes = tinydrm_connector_get_modes,
> -};
> -
> -static enum drm_connector_status
> -tinydrm_connector_detect(struct drm_connector *connector, bool force)
> -{
> -	if (drm_dev_is_unplugged(connector->dev))
> -		return connector_status_disconnected;
> -
> -	return connector->status;
> -}
> -
> -static void tinydrm_connector_destroy(struct drm_connector *connector)
> -{
> -	struct tinydrm_connector *tconn = to_tinydrm_connector(connector);
> -
> -	drm_connector_cleanup(connector);
> -	kfree(tconn);
> -}
> -
> -static const struct drm_connector_funcs tinydrm_connector_funcs = {
> -	.reset = drm_atomic_helper_connector_reset,
> -	.detect = tinydrm_connector_detect,
> -	.fill_modes = drm_helper_probe_single_connector_modes,
> -	.destroy = tinydrm_connector_destroy,
> -	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
> -	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
> -};
> -
> -struct drm_connector *
> -tinydrm_connector_create(struct drm_device *drm,
> -			 const struct drm_display_mode *mode,
> -			 int connector_type)
> -{
> -	struct tinydrm_connector *tconn;
> -	struct drm_connector *connector;
> -	int ret;
> -
> -	tconn = kzalloc(sizeof(*tconn), GFP_KERNEL);
> -	if (!tconn)
> -		return ERR_PTR(-ENOMEM);
> -
> -	drm_mode_copy(&tconn->mode, mode);
> -	connector = &tconn->base;
> -
> -	drm_connector_helper_add(connector, &tinydrm_connector_hfuncs);
> -	ret = drm_connector_init(drm, connector, &tinydrm_connector_funcs,
> -				 connector_type);
> -	if (ret) {
> -		kfree(tconn);
> -		return ERR_PTR(ret);
> -	}
> -
> -	connector->status = connector_status_connected;
> -
> -	return connector;
> -}
> -
> -static int tinydrm_rotate_mode(struct drm_display_mode *mode,
> -			       unsigned int rotation)
> -{
> -	if (rotation == 0 || rotation == 180) {
> -		return 0;
> -	} else if (rotation == 90 || rotation == 270) {
> -		swap(mode->hdisplay, mode->vdisplay);
> -		swap(mode->hsync_start, mode->vsync_start);
> -		swap(mode->hsync_end, mode->vsync_end);
> -		swap(mode->htotal, mode->vtotal);
> -		swap(mode->width_mm, mode->height_mm);
> -		return 0;
> -	} else {
> -		return -EINVAL;
> -	}
> -}
> -
> -/**
> - * tinydrm_display_pipe_init - Initialize display pipe
> - * @tdev: tinydrm device
> - * @funcs: Display pipe functions
> - * @connector_type: Connector type
> - * @formats: Array of supported formats (DRM_FORMAT\_\*)
> - * @format_count: Number of elements in @formats
> - * @mode: Supported mode
> - * @rotation: Initial @mode rotation in degrees Counter Clock Wise
> - *
> - * This function sets up a &drm_simple_display_pipe with a &drm_connector that
> - * has one fixed &drm_display_mode which is rotated according to @rotation.
> - *
> - * Returns:
> - * Zero on success, negative error code on failure.
> - */
> -int
> -tinydrm_display_pipe_init(struct tinydrm_device *tdev,
> -			  const struct drm_simple_display_pipe_funcs *funcs,
> -			  int connector_type,
> -			  const uint32_t *formats,
> -			  unsigned int format_count,
> -			  const struct drm_display_mode *mode,
> -			  unsigned int rotation)
> -{
> -	struct drm_device *drm = tdev->drm;
> -	struct drm_display_mode mode_copy;
> -	struct drm_connector *connector;
> -	int ret;
> -	static const uint64_t modifiers[] = {
> -		DRM_FORMAT_MOD_LINEAR,
> -		DRM_FORMAT_MOD_INVALID
> -	};
> -
> -	drm_mode_copy(&mode_copy, mode);
> -	ret = tinydrm_rotate_mode(&mode_copy, rotation);
> -	if (ret) {
> -		DRM_ERROR("Illegal rotation value %u\n", rotation);
> -		return -EINVAL;
> -	}
> -
> -	drm->mode_config.min_width = mode_copy.hdisplay;
> -	drm->mode_config.max_width = mode_copy.hdisplay;
> -	drm->mode_config.min_height = mode_copy.vdisplay;
> -	drm->mode_config.max_height = mode_copy.vdisplay;
> -
> -	connector = tinydrm_connector_create(drm, &mode_copy, connector_type);
> -	if (IS_ERR(connector))
> -		return PTR_ERR(connector);
> -
> -	return drm_simple_display_pipe_init(drm, &tdev->pipe, funcs, formats,
> -					    format_count, modifiers, connector);
> -}
> -EXPORT_SYMBOL(tinydrm_display_pipe_init);
> diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> index 918f77c7de34..d1d546f3a664 100644
> --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
> +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> @@ -391,7 +391,13 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
>  {
>  	size_t bufsize = mode->vdisplay * mode->hdisplay * sizeof(u16);
>  	struct tinydrm_device *tdev = &mipi->tinydrm;
> +	struct drm_connector *connector;
> +	struct drm_device *drm;
>  	int ret;
> +	static const uint64_t modifiers[] = {
> +		DRM_FORMAT_MOD_LINEAR,
> +		DRM_FORMAT_MOD_INVALID
> +	};
>  
>  	if (!mipi->command)
>  		return -EINVAL;
> @@ -406,18 +412,22 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
>  	if (ret)
>  		return ret;
>  
> -	/* TODO: Maybe add DRM_MODE_CONNECTOR_SPI */
> -	ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
> -					DRM_MODE_CONNECTOR_VIRTUAL,
> -					mipi_dbi_formats,
> -					ARRAY_SIZE(mipi_dbi_formats), mode,
> -					rotation);
> +	drm = tdev->drm;
> +
> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, rotation);

You lost the todo here ... _VIRTUAL is kinda a pretty good lie, since this
is definitely not virtual hw :-)
-Daniel

> +	if (IS_ERR(connector))
> +		return PTR_ERR(connector);
> +
> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, pipe_funcs,
> +					   mipi_dbi_formats, ARRAY_SIZE(mipi_dbi_formats),
> +					   modifiers, connector);
>  	if (ret)
>  		return ret;
>  
>  	drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
>  
> -	tdev->drm->mode_config.preferred_depth = 16;
> +	drm_simple_connector_set_mode_config(connector);
> +	drm->mode_config.preferred_depth = 16;
>  	mipi->rotation = rotation;
>  
>  	drm_mode_config_reset(tdev->drm);
> diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c
> index 72d30151ecd8..1d551744cc9b 100644
> --- a/drivers/gpu/drm/tinydrm/repaper.c
> +++ b/drivers/gpu/drm/tinydrm/repaper.c
> @@ -924,12 +924,14 @@ static int repaper_probe(struct spi_device *spi)
>  	const struct drm_display_mode *mode;
>  	const struct spi_device_id *spi_id;
>  	const struct of_device_id *match;
> +	struct drm_connector *connector;
>  	struct device *dev = &spi->dev;
>  	struct tinydrm_device *tdev;
>  	enum repaper_model model;
>  	const char *thermal_zone;
>  	struct repaper_epd *epd;
>  	size_t line_buffer_size;
> +	struct drm_device *drm;
>  	int ret;
>  
>  	match = of_match_device(repaper_of_match, dev);
> @@ -1069,13 +1071,19 @@ static int repaper_probe(struct spi_device *spi)
>  	if (ret)
>  		return ret;
>  
> -	ret = tinydrm_display_pipe_init(tdev, &repaper_pipe_funcs,
> -					DRM_MODE_CONNECTOR_VIRTUAL,
> -					repaper_formats,
> -					ARRAY_SIZE(repaper_formats), mode, 0);
> +	drm = tdev->drm;
> +
> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, 0);
> +	if (IS_ERR(connector))
> +		return PTR_ERR(connector);
> +
> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, &repaper_pipe_funcs,
> +					   repaper_formats, ARRAY_SIZE(repaper_formats),
> +					   NULL, connector);
>  	if (ret)
>  		return ret;
>  
> +	drm_simple_connector_set_mode_config(connector);
>  	drm_mode_config_reset(tdev->drm);
>  	spi_set_drvdata(spi, tdev);
>  
> diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c
> index 5ee7db561349..6cb68dd7e7b6 100644
> --- a/drivers/gpu/drm/tinydrm/st7586.c
> +++ b/drivers/gpu/drm/tinydrm/st7586.c
> @@ -271,6 +271,8 @@ static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
>  {
>  	size_t bufsize = (mode->vdisplay + 2) / 3 * mode->hdisplay;
>  	struct tinydrm_device *tdev = &mipi->tinydrm;
> +	struct drm_connector *connector;
> +	struct drm_device *drm;
>  	int ret;
>  
>  	mutex_init(&mipi->cmdlock);
> @@ -283,17 +285,22 @@ static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
>  	if (ret)
>  		return ret;
>  
> -	ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
> -					DRM_MODE_CONNECTOR_VIRTUAL,
> -					st7586_formats,
> -					ARRAY_SIZE(st7586_formats),
> -					mode, rotation);
> +	drm = tdev->drm;
> +
> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, rotation);
> +	if (IS_ERR(connector))
> +		return PTR_ERR(connector);
> +
> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, pipe_funcs,
> +					   st7586_formats, ARRAY_SIZE(st7586_formats),
> +					   NULL, connector);
>  	if (ret)
>  		return ret;
>  
>  	drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
>  
> -	tdev->drm->mode_config.preferred_depth = 32;
> +	drm_simple_connector_set_mode_config(connector);
> +	drm->mode_config.preferred_depth = 32;
>  	mipi->rotation = rotation;
>  
>  	drm_mode_config_reset(tdev->drm);
> diff --git a/include/drm/tinydrm/tinydrm.h b/include/drm/tinydrm/tinydrm.h
> index 87e7f9b93a37..69c4363fd88e 100644
> --- a/include/drm/tinydrm/tinydrm.h
> +++ b/include/drm/tinydrm/tinydrm.h
> @@ -40,13 +40,4 @@ int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
>  int devm_tinydrm_register(struct tinydrm_device *tdev);
>  void tinydrm_shutdown(struct tinydrm_device *tdev);
>  
> -int
> -tinydrm_display_pipe_init(struct tinydrm_device *tdev,
> -			  const struct drm_simple_display_pipe_funcs *funcs,
> -			  int connector_type,
> -			  const uint32_t *formats,
> -			  unsigned int format_count,
> -			  const struct drm_display_mode *mode,
> -			  unsigned int rotation);
> -
>  #endif /* __LINUX_TINYDRM_H */
> -- 
> 2.20.1
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
Noralf Trønnes Jan. 28, 2019, 2:46 p.m. UTC | #3
Den 21.01.2019 10.15, skrev Daniel Vetter:
> On Sun, Jan 20, 2019 at 12:43:11PM +0100, Noralf Trønnes wrote:
>> Further strip down tinydrm.ko and switch to drm_simple_connector_create().
>>
>> Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
>> ---
>>  Documentation/gpu/tinydrm.rst               |   3 -
>>  drivers/gpu/drm/tinydrm/core/Makefile       |   2 +-
>>  drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c | 183 --------------------
>>  drivers/gpu/drm/tinydrm/mipi-dbi.c          |  24 ++-
>>  drivers/gpu/drm/tinydrm/repaper.c           |  16 +-
>>  drivers/gpu/drm/tinydrm/st7586.c            |  19 +-
>>  include/drm/tinydrm/tinydrm.h               |   9 -
>>  7 files changed, 43 insertions(+), 213 deletions(-)
>>  delete mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
>>
>> diff --git a/Documentation/gpu/tinydrm.rst b/Documentation/gpu/tinydrm.rst
>> index a913644bfc19..1ca726474af4 100644
>> --- a/Documentation/gpu/tinydrm.rst
>> +++ b/Documentation/gpu/tinydrm.rst
>> @@ -17,9 +17,6 @@ Core functionality
>>  .. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-core.c
>>     :export:
>>  
>> -.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
>> -   :export:
>> -
>>  Additional helpers
>>  ==================
>>  
>> diff --git a/drivers/gpu/drm/tinydrm/core/Makefile b/drivers/gpu/drm/tinydrm/core/Makefile
>> index fb221e6f8885..bf2df7326df7 100644
>> --- a/drivers/gpu/drm/tinydrm/core/Makefile
>> +++ b/drivers/gpu/drm/tinydrm/core/Makefile
>> @@ -1,3 +1,3 @@
>> -tinydrm-y := tinydrm-core.o tinydrm-pipe.o tinydrm-helpers.o
>> +tinydrm-y := tinydrm-core.o tinydrm-helpers.o
>>  
>>  obj-$(CONFIG_DRM_TINYDRM) += tinydrm.o
>> diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c b/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
>> deleted file mode 100644
>> index 323564329535..000000000000
>> --- a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
>> +++ /dev/null
>> @@ -1,183 +0,0 @@
>> -/*
>> - * Copyright (C) 2016 Noralf Trønnes
>> - *
>> - * This program is free software; you can redistribute it and/or modify
>> - * it under the terms of the GNU General Public License as published by
>> - * the Free Software Foundation; either version 2 of the License, or
>> - * (at your option) any later version.
>> - */
>> -
>> -#include <drm/drm_atomic_helper.h>
>> -#include <drm/drm_crtc_helper.h>
>> -#include <drm/drm_drv.h>
>> -#include <drm/drm_gem_framebuffer_helper.h>
>> -#include <drm/drm_modes.h>
>> -#include <drm/drm_print.h>
>> -#include <drm/tinydrm/tinydrm.h>
>> -
>> -struct tinydrm_connector {
>> -	struct drm_connector base;
>> -	struct drm_display_mode mode;
>> -};
>> -
>> -static inline struct tinydrm_connector *
>> -to_tinydrm_connector(struct drm_connector *connector)
>> -{
>> -	return container_of(connector, struct tinydrm_connector, base);
>> -}
>> -
>> -static int tinydrm_connector_get_modes(struct drm_connector *connector)
>> -{
>> -	struct tinydrm_connector *tconn = to_tinydrm_connector(connector);
>> -	struct drm_display_mode *mode;
>> -
>> -	mode = drm_mode_duplicate(connector->dev, &tconn->mode);
>> -	if (!mode) {
>> -		DRM_ERROR("Failed to duplicate mode\n");
>> -		return 0;
>> -	}
>> -
>> -	if (mode->name[0] == '\0')
>> -		drm_mode_set_name(mode);
>> -
>> -	mode->type |= DRM_MODE_TYPE_PREFERRED;
>> -	drm_mode_probed_add(connector, mode);
>> -
>> -	if (mode->width_mm) {
>> -		connector->display_info.width_mm = mode->width_mm;
>> -		connector->display_info.height_mm = mode->height_mm;
>> -	}
>> -
>> -	return 1;
>> -}
>> -
>> -static const struct drm_connector_helper_funcs tinydrm_connector_hfuncs = {
>> -	.get_modes = tinydrm_connector_get_modes,
>> -};
>> -
>> -static enum drm_connector_status
>> -tinydrm_connector_detect(struct drm_connector *connector, bool force)
>> -{
>> -	if (drm_dev_is_unplugged(connector->dev))
>> -		return connector_status_disconnected;
>> -
>> -	return connector->status;
>> -}
>> -
>> -static void tinydrm_connector_destroy(struct drm_connector *connector)
>> -{
>> -	struct tinydrm_connector *tconn = to_tinydrm_connector(connector);
>> -
>> -	drm_connector_cleanup(connector);
>> -	kfree(tconn);
>> -}
>> -
>> -static const struct drm_connector_funcs tinydrm_connector_funcs = {
>> -	.reset = drm_atomic_helper_connector_reset,
>> -	.detect = tinydrm_connector_detect,
>> -	.fill_modes = drm_helper_probe_single_connector_modes,
>> -	.destroy = tinydrm_connector_destroy,
>> -	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
>> -	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
>> -};
>> -
>> -struct drm_connector *
>> -tinydrm_connector_create(struct drm_device *drm,
>> -			 const struct drm_display_mode *mode,
>> -			 int connector_type)
>> -{
>> -	struct tinydrm_connector *tconn;
>> -	struct drm_connector *connector;
>> -	int ret;
>> -
>> -	tconn = kzalloc(sizeof(*tconn), GFP_KERNEL);
>> -	if (!tconn)
>> -		return ERR_PTR(-ENOMEM);
>> -
>> -	drm_mode_copy(&tconn->mode, mode);
>> -	connector = &tconn->base;
>> -
>> -	drm_connector_helper_add(connector, &tinydrm_connector_hfuncs);
>> -	ret = drm_connector_init(drm, connector, &tinydrm_connector_funcs,
>> -				 connector_type);
>> -	if (ret) {
>> -		kfree(tconn);
>> -		return ERR_PTR(ret);
>> -	}
>> -
>> -	connector->status = connector_status_connected;
>> -
>> -	return connector;
>> -}
>> -
>> -static int tinydrm_rotate_mode(struct drm_display_mode *mode,
>> -			       unsigned int rotation)
>> -{
>> -	if (rotation == 0 || rotation == 180) {
>> -		return 0;
>> -	} else if (rotation == 90 || rotation == 270) {
>> -		swap(mode->hdisplay, mode->vdisplay);
>> -		swap(mode->hsync_start, mode->vsync_start);
>> -		swap(mode->hsync_end, mode->vsync_end);
>> -		swap(mode->htotal, mode->vtotal);
>> -		swap(mode->width_mm, mode->height_mm);
>> -		return 0;
>> -	} else {
>> -		return -EINVAL;
>> -	}
>> -}
>> -
>> -/**
>> - * tinydrm_display_pipe_init - Initialize display pipe
>> - * @tdev: tinydrm device
>> - * @funcs: Display pipe functions
>> - * @connector_type: Connector type
>> - * @formats: Array of supported formats (DRM_FORMAT\_\*)
>> - * @format_count: Number of elements in @formats
>> - * @mode: Supported mode
>> - * @rotation: Initial @mode rotation in degrees Counter Clock Wise
>> - *
>> - * This function sets up a &drm_simple_display_pipe with a &drm_connector that
>> - * has one fixed &drm_display_mode which is rotated according to @rotation.
>> - *
>> - * Returns:
>> - * Zero on success, negative error code on failure.
>> - */
>> -int
>> -tinydrm_display_pipe_init(struct tinydrm_device *tdev,
>> -			  const struct drm_simple_display_pipe_funcs *funcs,
>> -			  int connector_type,
>> -			  const uint32_t *formats,
>> -			  unsigned int format_count,
>> -			  const struct drm_display_mode *mode,
>> -			  unsigned int rotation)
>> -{
>> -	struct drm_device *drm = tdev->drm;
>> -	struct drm_display_mode mode_copy;
>> -	struct drm_connector *connector;
>> -	int ret;
>> -	static const uint64_t modifiers[] = {
>> -		DRM_FORMAT_MOD_LINEAR,
>> -		DRM_FORMAT_MOD_INVALID
>> -	};
>> -
>> -	drm_mode_copy(&mode_copy, mode);
>> -	ret = tinydrm_rotate_mode(&mode_copy, rotation);
>> -	if (ret) {
>> -		DRM_ERROR("Illegal rotation value %u\n", rotation);
>> -		return -EINVAL;
>> -	}
>> -
>> -	drm->mode_config.min_width = mode_copy.hdisplay;
>> -	drm->mode_config.max_width = mode_copy.hdisplay;
>> -	drm->mode_config.min_height = mode_copy.vdisplay;
>> -	drm->mode_config.max_height = mode_copy.vdisplay;
>> -
>> -	connector = tinydrm_connector_create(drm, &mode_copy, connector_type);
>> -	if (IS_ERR(connector))
>> -		return PTR_ERR(connector);
>> -
>> -	return drm_simple_display_pipe_init(drm, &tdev->pipe, funcs, formats,
>> -					    format_count, modifiers, connector);
>> -}
>> -EXPORT_SYMBOL(tinydrm_display_pipe_init);
>> diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
>> index 918f77c7de34..d1d546f3a664 100644
>> --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
>> +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
>> @@ -391,7 +391,13 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
>>  {
>>  	size_t bufsize = mode->vdisplay * mode->hdisplay * sizeof(u16);
>>  	struct tinydrm_device *tdev = &mipi->tinydrm;
>> +	struct drm_connector *connector;
>> +	struct drm_device *drm;
>>  	int ret;
>> +	static const uint64_t modifiers[] = {
>> +		DRM_FORMAT_MOD_LINEAR,
>> +		DRM_FORMAT_MOD_INVALID
>> +	};
>>  
>>  	if (!mipi->command)
>>  		return -EINVAL;
>> @@ -406,18 +412,22 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
>>  	if (ret)
>>  		return ret;
>>  
>> -	/* TODO: Maybe add DRM_MODE_CONNECTOR_SPI */
>> -	ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
>> -					DRM_MODE_CONNECTOR_VIRTUAL,
>> -					mipi_dbi_formats,
>> -					ARRAY_SIZE(mipi_dbi_formats), mode,
>> -					rotation);
>> +	drm = tdev->drm;
>> +
>> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, rotation);
> 
> You lost the todo here ... _VIRTUAL is kinda a pretty good lie, since this
> is definitely not virtual hw :-)

I suspect that if I added DRM_MODE_CONNECTOR_SPI, it would mean that I
had to update various userspace libraries as well?
I have zero experience with all that that, hence why I've never tackled
this.

Noralf.

> -Daniel
> 
>> +	if (IS_ERR(connector))
>> +		return PTR_ERR(connector);
>> +
>> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, pipe_funcs,
>> +					   mipi_dbi_formats, ARRAY_SIZE(mipi_dbi_formats),
>> +					   modifiers, connector);
>>  	if (ret)
>>  		return ret;
>>  
>>  	drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
>>  
>> -	tdev->drm->mode_config.preferred_depth = 16;
>> +	drm_simple_connector_set_mode_config(connector);
>> +	drm->mode_config.preferred_depth = 16;
>>  	mipi->rotation = rotation;
>>  
>>  	drm_mode_config_reset(tdev->drm);
>> diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c
>> index 72d30151ecd8..1d551744cc9b 100644
>> --- a/drivers/gpu/drm/tinydrm/repaper.c
>> +++ b/drivers/gpu/drm/tinydrm/repaper.c
>> @@ -924,12 +924,14 @@ static int repaper_probe(struct spi_device *spi)
>>  	const struct drm_display_mode *mode;
>>  	const struct spi_device_id *spi_id;
>>  	const struct of_device_id *match;
>> +	struct drm_connector *connector;
>>  	struct device *dev = &spi->dev;
>>  	struct tinydrm_device *tdev;
>>  	enum repaper_model model;
>>  	const char *thermal_zone;
>>  	struct repaper_epd *epd;
>>  	size_t line_buffer_size;
>> +	struct drm_device *drm;
>>  	int ret;
>>  
>>  	match = of_match_device(repaper_of_match, dev);
>> @@ -1069,13 +1071,19 @@ static int repaper_probe(struct spi_device *spi)
>>  	if (ret)
>>  		return ret;
>>  
>> -	ret = tinydrm_display_pipe_init(tdev, &repaper_pipe_funcs,
>> -					DRM_MODE_CONNECTOR_VIRTUAL,
>> -					repaper_formats,
>> -					ARRAY_SIZE(repaper_formats), mode, 0);
>> +	drm = tdev->drm;
>> +
>> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, 0);
>> +	if (IS_ERR(connector))
>> +		return PTR_ERR(connector);
>> +
>> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, &repaper_pipe_funcs,
>> +					   repaper_formats, ARRAY_SIZE(repaper_formats),
>> +					   NULL, connector);
>>  	if (ret)
>>  		return ret;
>>  
>> +	drm_simple_connector_set_mode_config(connector);
>>  	drm_mode_config_reset(tdev->drm);
>>  	spi_set_drvdata(spi, tdev);
>>  
>> diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c
>> index 5ee7db561349..6cb68dd7e7b6 100644
>> --- a/drivers/gpu/drm/tinydrm/st7586.c
>> +++ b/drivers/gpu/drm/tinydrm/st7586.c
>> @@ -271,6 +271,8 @@ static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
>>  {
>>  	size_t bufsize = (mode->vdisplay + 2) / 3 * mode->hdisplay;
>>  	struct tinydrm_device *tdev = &mipi->tinydrm;
>> +	struct drm_connector *connector;
>> +	struct drm_device *drm;
>>  	int ret;
>>  
>>  	mutex_init(&mipi->cmdlock);
>> @@ -283,17 +285,22 @@ static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
>>  	if (ret)
>>  		return ret;
>>  
>> -	ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
>> -					DRM_MODE_CONNECTOR_VIRTUAL,
>> -					st7586_formats,
>> -					ARRAY_SIZE(st7586_formats),
>> -					mode, rotation);
>> +	drm = tdev->drm;
>> +
>> +	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, rotation);
>> +	if (IS_ERR(connector))
>> +		return PTR_ERR(connector);
>> +
>> +	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, pipe_funcs,
>> +					   st7586_formats, ARRAY_SIZE(st7586_formats),
>> +					   NULL, connector);
>>  	if (ret)
>>  		return ret;
>>  
>>  	drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
>>  
>> -	tdev->drm->mode_config.preferred_depth = 32;
>> +	drm_simple_connector_set_mode_config(connector);
>> +	drm->mode_config.preferred_depth = 32;
>>  	mipi->rotation = rotation;
>>  
>>  	drm_mode_config_reset(tdev->drm);
>> diff --git a/include/drm/tinydrm/tinydrm.h b/include/drm/tinydrm/tinydrm.h
>> index 87e7f9b93a37..69c4363fd88e 100644
>> --- a/include/drm/tinydrm/tinydrm.h
>> +++ b/include/drm/tinydrm/tinydrm.h
>> @@ -40,13 +40,4 @@ int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
>>  int devm_tinydrm_register(struct tinydrm_device *tdev);
>>  void tinydrm_shutdown(struct tinydrm_device *tdev);
>>  
>> -int
>> -tinydrm_display_pipe_init(struct tinydrm_device *tdev,
>> -			  const struct drm_simple_display_pipe_funcs *funcs,
>> -			  int connector_type,
>> -			  const uint32_t *formats,
>> -			  unsigned int format_count,
>> -			  const struct drm_display_mode *mode,
>> -			  unsigned int rotation);
>> -
>>  #endif /* __LINUX_TINYDRM_H */
>> -- 
>> 2.20.1
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
diff mbox series

Patch

diff --git a/Documentation/gpu/tinydrm.rst b/Documentation/gpu/tinydrm.rst
index a913644bfc19..1ca726474af4 100644
--- a/Documentation/gpu/tinydrm.rst
+++ b/Documentation/gpu/tinydrm.rst
@@ -17,9 +17,6 @@  Core functionality
 .. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-core.c
    :export:
 
-.. kernel-doc:: drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
-   :export:
-
 Additional helpers
 ==================
 
diff --git a/drivers/gpu/drm/tinydrm/core/Makefile b/drivers/gpu/drm/tinydrm/core/Makefile
index fb221e6f8885..bf2df7326df7 100644
--- a/drivers/gpu/drm/tinydrm/core/Makefile
+++ b/drivers/gpu/drm/tinydrm/core/Makefile
@@ -1,3 +1,3 @@ 
-tinydrm-y := tinydrm-core.o tinydrm-pipe.o tinydrm-helpers.o
+tinydrm-y := tinydrm-core.o tinydrm-helpers.o
 
 obj-$(CONFIG_DRM_TINYDRM) += tinydrm.o
diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c b/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
deleted file mode 100644
index 323564329535..000000000000
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c
+++ /dev/null
@@ -1,183 +0,0 @@ 
-/*
- * Copyright (C) 2016 Noralf Trønnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_drv.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-#include <drm/drm_modes.h>
-#include <drm/drm_print.h>
-#include <drm/tinydrm/tinydrm.h>
-
-struct tinydrm_connector {
-	struct drm_connector base;
-	struct drm_display_mode mode;
-};
-
-static inline struct tinydrm_connector *
-to_tinydrm_connector(struct drm_connector *connector)
-{
-	return container_of(connector, struct tinydrm_connector, base);
-}
-
-static int tinydrm_connector_get_modes(struct drm_connector *connector)
-{
-	struct tinydrm_connector *tconn = to_tinydrm_connector(connector);
-	struct drm_display_mode *mode;
-
-	mode = drm_mode_duplicate(connector->dev, &tconn->mode);
-	if (!mode) {
-		DRM_ERROR("Failed to duplicate mode\n");
-		return 0;
-	}
-
-	if (mode->name[0] == '\0')
-		drm_mode_set_name(mode);
-
-	mode->type |= DRM_MODE_TYPE_PREFERRED;
-	drm_mode_probed_add(connector, mode);
-
-	if (mode->width_mm) {
-		connector->display_info.width_mm = mode->width_mm;
-		connector->display_info.height_mm = mode->height_mm;
-	}
-
-	return 1;
-}
-
-static const struct drm_connector_helper_funcs tinydrm_connector_hfuncs = {
-	.get_modes = tinydrm_connector_get_modes,
-};
-
-static enum drm_connector_status
-tinydrm_connector_detect(struct drm_connector *connector, bool force)
-{
-	if (drm_dev_is_unplugged(connector->dev))
-		return connector_status_disconnected;
-
-	return connector->status;
-}
-
-static void tinydrm_connector_destroy(struct drm_connector *connector)
-{
-	struct tinydrm_connector *tconn = to_tinydrm_connector(connector);
-
-	drm_connector_cleanup(connector);
-	kfree(tconn);
-}
-
-static const struct drm_connector_funcs tinydrm_connector_funcs = {
-	.reset = drm_atomic_helper_connector_reset,
-	.detect = tinydrm_connector_detect,
-	.fill_modes = drm_helper_probe_single_connector_modes,
-	.destroy = tinydrm_connector_destroy,
-	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-struct drm_connector *
-tinydrm_connector_create(struct drm_device *drm,
-			 const struct drm_display_mode *mode,
-			 int connector_type)
-{
-	struct tinydrm_connector *tconn;
-	struct drm_connector *connector;
-	int ret;
-
-	tconn = kzalloc(sizeof(*tconn), GFP_KERNEL);
-	if (!tconn)
-		return ERR_PTR(-ENOMEM);
-
-	drm_mode_copy(&tconn->mode, mode);
-	connector = &tconn->base;
-
-	drm_connector_helper_add(connector, &tinydrm_connector_hfuncs);
-	ret = drm_connector_init(drm, connector, &tinydrm_connector_funcs,
-				 connector_type);
-	if (ret) {
-		kfree(tconn);
-		return ERR_PTR(ret);
-	}
-
-	connector->status = connector_status_connected;
-
-	return connector;
-}
-
-static int tinydrm_rotate_mode(struct drm_display_mode *mode,
-			       unsigned int rotation)
-{
-	if (rotation == 0 || rotation == 180) {
-		return 0;
-	} else if (rotation == 90 || rotation == 270) {
-		swap(mode->hdisplay, mode->vdisplay);
-		swap(mode->hsync_start, mode->vsync_start);
-		swap(mode->hsync_end, mode->vsync_end);
-		swap(mode->htotal, mode->vtotal);
-		swap(mode->width_mm, mode->height_mm);
-		return 0;
-	} else {
-		return -EINVAL;
-	}
-}
-
-/**
- * tinydrm_display_pipe_init - Initialize display pipe
- * @tdev: tinydrm device
- * @funcs: Display pipe functions
- * @connector_type: Connector type
- * @formats: Array of supported formats (DRM_FORMAT\_\*)
- * @format_count: Number of elements in @formats
- * @mode: Supported mode
- * @rotation: Initial @mode rotation in degrees Counter Clock Wise
- *
- * This function sets up a &drm_simple_display_pipe with a &drm_connector that
- * has one fixed &drm_display_mode which is rotated according to @rotation.
- *
- * Returns:
- * Zero on success, negative error code on failure.
- */
-int
-tinydrm_display_pipe_init(struct tinydrm_device *tdev,
-			  const struct drm_simple_display_pipe_funcs *funcs,
-			  int connector_type,
-			  const uint32_t *formats,
-			  unsigned int format_count,
-			  const struct drm_display_mode *mode,
-			  unsigned int rotation)
-{
-	struct drm_device *drm = tdev->drm;
-	struct drm_display_mode mode_copy;
-	struct drm_connector *connector;
-	int ret;
-	static const uint64_t modifiers[] = {
-		DRM_FORMAT_MOD_LINEAR,
-		DRM_FORMAT_MOD_INVALID
-	};
-
-	drm_mode_copy(&mode_copy, mode);
-	ret = tinydrm_rotate_mode(&mode_copy, rotation);
-	if (ret) {
-		DRM_ERROR("Illegal rotation value %u\n", rotation);
-		return -EINVAL;
-	}
-
-	drm->mode_config.min_width = mode_copy.hdisplay;
-	drm->mode_config.max_width = mode_copy.hdisplay;
-	drm->mode_config.min_height = mode_copy.vdisplay;
-	drm->mode_config.max_height = mode_copy.vdisplay;
-
-	connector = tinydrm_connector_create(drm, &mode_copy, connector_type);
-	if (IS_ERR(connector))
-		return PTR_ERR(connector);
-
-	return drm_simple_display_pipe_init(drm, &tdev->pipe, funcs, formats,
-					    format_count, modifiers, connector);
-}
-EXPORT_SYMBOL(tinydrm_display_pipe_init);
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
index 918f77c7de34..d1d546f3a664 100644
--- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
+++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
@@ -391,7 +391,13 @@  int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
 {
 	size_t bufsize = mode->vdisplay * mode->hdisplay * sizeof(u16);
 	struct tinydrm_device *tdev = &mipi->tinydrm;
+	struct drm_connector *connector;
+	struct drm_device *drm;
 	int ret;
+	static const uint64_t modifiers[] = {
+		DRM_FORMAT_MOD_LINEAR,
+		DRM_FORMAT_MOD_INVALID
+	};
 
 	if (!mipi->command)
 		return -EINVAL;
@@ -406,18 +412,22 @@  int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
 	if (ret)
 		return ret;
 
-	/* TODO: Maybe add DRM_MODE_CONNECTOR_SPI */
-	ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
-					DRM_MODE_CONNECTOR_VIRTUAL,
-					mipi_dbi_formats,
-					ARRAY_SIZE(mipi_dbi_formats), mode,
-					rotation);
+	drm = tdev->drm;
+
+	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, rotation);
+	if (IS_ERR(connector))
+		return PTR_ERR(connector);
+
+	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, pipe_funcs,
+					   mipi_dbi_formats, ARRAY_SIZE(mipi_dbi_formats),
+					   modifiers, connector);
 	if (ret)
 		return ret;
 
 	drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
 
-	tdev->drm->mode_config.preferred_depth = 16;
+	drm_simple_connector_set_mode_config(connector);
+	drm->mode_config.preferred_depth = 16;
 	mipi->rotation = rotation;
 
 	drm_mode_config_reset(tdev->drm);
diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c
index 72d30151ecd8..1d551744cc9b 100644
--- a/drivers/gpu/drm/tinydrm/repaper.c
+++ b/drivers/gpu/drm/tinydrm/repaper.c
@@ -924,12 +924,14 @@  static int repaper_probe(struct spi_device *spi)
 	const struct drm_display_mode *mode;
 	const struct spi_device_id *spi_id;
 	const struct of_device_id *match;
+	struct drm_connector *connector;
 	struct device *dev = &spi->dev;
 	struct tinydrm_device *tdev;
 	enum repaper_model model;
 	const char *thermal_zone;
 	struct repaper_epd *epd;
 	size_t line_buffer_size;
+	struct drm_device *drm;
 	int ret;
 
 	match = of_match_device(repaper_of_match, dev);
@@ -1069,13 +1071,19 @@  static int repaper_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = tinydrm_display_pipe_init(tdev, &repaper_pipe_funcs,
-					DRM_MODE_CONNECTOR_VIRTUAL,
-					repaper_formats,
-					ARRAY_SIZE(repaper_formats), mode, 0);
+	drm = tdev->drm;
+
+	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, 0);
+	if (IS_ERR(connector))
+		return PTR_ERR(connector);
+
+	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, &repaper_pipe_funcs,
+					   repaper_formats, ARRAY_SIZE(repaper_formats),
+					   NULL, connector);
 	if (ret)
 		return ret;
 
+	drm_simple_connector_set_mode_config(connector);
 	drm_mode_config_reset(tdev->drm);
 	spi_set_drvdata(spi, tdev);
 
diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c
index 5ee7db561349..6cb68dd7e7b6 100644
--- a/drivers/gpu/drm/tinydrm/st7586.c
+++ b/drivers/gpu/drm/tinydrm/st7586.c
@@ -271,6 +271,8 @@  static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
 {
 	size_t bufsize = (mode->vdisplay + 2) / 3 * mode->hdisplay;
 	struct tinydrm_device *tdev = &mipi->tinydrm;
+	struct drm_connector *connector;
+	struct drm_device *drm;
 	int ret;
 
 	mutex_init(&mipi->cmdlock);
@@ -283,17 +285,22 @@  static int st7586_init(struct device *dev, struct mipi_dbi *mipi,
 	if (ret)
 		return ret;
 
-	ret = tinydrm_display_pipe_init(tdev, pipe_funcs,
-					DRM_MODE_CONNECTOR_VIRTUAL,
-					st7586_formats,
-					ARRAY_SIZE(st7586_formats),
-					mode, rotation);
+	drm = tdev->drm;
+
+	connector = drm_simple_connector_create(drm, DRM_MODE_CONNECTOR_VIRTUAL, mode, rotation);
+	if (IS_ERR(connector))
+		return PTR_ERR(connector);
+
+	ret = drm_simple_display_pipe_init(drm, &tdev->pipe, pipe_funcs,
+					   st7586_formats, ARRAY_SIZE(st7586_formats),
+					   NULL, connector);
 	if (ret)
 		return ret;
 
 	drm_plane_enable_fb_damage_clips(&tdev->pipe.plane);
 
-	tdev->drm->mode_config.preferred_depth = 32;
+	drm_simple_connector_set_mode_config(connector);
+	drm->mode_config.preferred_depth = 32;
 	mipi->rotation = rotation;
 
 	drm_mode_config_reset(tdev->drm);
diff --git a/include/drm/tinydrm/tinydrm.h b/include/drm/tinydrm/tinydrm.h
index 87e7f9b93a37..69c4363fd88e 100644
--- a/include/drm/tinydrm/tinydrm.h
+++ b/include/drm/tinydrm/tinydrm.h
@@ -40,13 +40,4 @@  int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
 int devm_tinydrm_register(struct tinydrm_device *tdev);
 void tinydrm_shutdown(struct tinydrm_device *tdev);
 
-int
-tinydrm_display_pipe_init(struct tinydrm_device *tdev,
-			  const struct drm_simple_display_pipe_funcs *funcs,
-			  int connector_type,
-			  const uint32_t *formats,
-			  unsigned int format_count,
-			  const struct drm_display_mode *mode,
-			  unsigned int rotation);
-
 #endif /* __LINUX_TINYDRM_H */