[PATCH 05/10] drm/fb-helper: Remove preferred_bpp parameter from fbdev internals

Thomas Zimmermann
2023-01-23T10:06:13Z

Store the console's preferred BPP value in struct drm_fb_helper
and remove the respective function parameters from the internal
fbdev code.

The BPP value is only required as a fallback and will now always
be available in the fb-helper instance.

No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/drm_fb_helper.c | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 4379bcd7718b..258103d317ac 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1786,7 +1786,7 @@ static uint32_t drm_fb_helper_find_color_mode_format(struct drm_fb_helper *fb_he
return drm_fb_helper_find_format(fb_helper, formats, format_count, bpp, depth);
}

-static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferred_bpp,
+static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_client_dev *client = &fb_helper->client;
@@ -1831,7 +1831,7 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int prefe
surface_format = drm_fb_helper_find_color_mode_format(fb_helper,
plane->format_types,
plane->format_count,
- preferred_bpp);
+ fb_helper->preferred_bpp);
if (surface_format != DRM_FORMAT_INVALID)
break; /* found supported format */
}
@@ -1903,7 +1903,7 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int prefe
return 0;
}

-static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferred_bpp,
+static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_client_dev *client = &fb_helper->client;
@@ -1912,7 +1912,7 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferr
int ret;

mutex_lock(&client->modeset_mutex);
- ret = __drm_fb_helper_find_sizes(fb_helper, preferred_bpp, sizes);
+ ret = __drm_fb_helper_find_sizes(fb_helper, sizes);
mutex_unlock(&client->modeset_mutex);

if (ret)
@@ -1934,15 +1934,14 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, int preferr
* Allocates the backing storage and sets up the fbdev info structure through
* the ->fb_probe callback.
*/
-static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
- int preferred_bpp)
+static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper)
{
struct drm_client_dev *client = &fb_helper->client;
struct drm_device *dev = fb_helper->dev;
struct drm_fb_helper_surface_size sizes;
int ret;

- ret = drm_fb_helper_find_sizes(fb_helper, preferred_bpp, &sizes);
+ ret = drm_fb_helper_find_sizes(fb_helper, &sizes);
if (ret) {
/* First time: disable all crtc's.. */
if (!fb_helper->deferred_setup)
@@ -2125,8 +2124,7 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)

/* Note: Drops fb_helper->lock before returning. */
static int
-__drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper,
- int bpp_sel)
+__drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper)
{
struct drm_device *dev = fb_helper->dev;
struct fb_info *info;
@@ -2137,10 +2135,9 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper,
height = dev->mode_config.max_height;

drm_client_modeset_probe(&fb_helper->client, width, height);
- ret = drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);
+ ret = drm_fb_helper_single_fb_probe(fb_helper);
if (ret < 0) {
if (ret == -EAGAIN) {
- fb_helper->preferred_bpp = bpp_sel;
fb_helper->deferred_setup = true;
ret = 0;
}
@@ -2231,8 +2228,10 @@ int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel)
if (!drm_fbdev_emulation)
return 0;

+ fb_helper->preferred_bpp = bpp_sel;
+
mutex_lock(&fb_helper->lock);
- ret = __drm_fb_helper_initial_config_and_unlock(fb_helper, bpp_sel);
+ ret = __drm_fb_helper_initial_config_and_unlock(fb_helper);

return ret;
}
@@ -2268,8 +2267,7 @@ int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)

mutex_lock(&fb_helper->lock);
if (fb_helper->deferred_setup) {
- err = __drm_fb_helper_initial_config_and_unlock(fb_helper,
- fb_helper->preferred_bpp);
+ err = __drm_fb_helper_initial_config_and_unlock(fb_helper);
return err;
}

--
2.39.0