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| author | Noralf Trønnes <noralf@tronnes.org> | 2018-01-10 19:59:36 +0100 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2018-01-15 15:10:28 +0100 |
| commit | 22edc8d38ba5e912d0fd0d4d23ed268ae152c5ee (patch) | |
| tree | 3643c47c3aefd92e20f1b3cfa9fe52f90b1bad28 /drivers/gpu/drm/tinydrm/mipi-dbi.c | |
| parent | 24e05e7a82454019fbf3b20c3006c19939571acd (diff) | |
| download | linux-22edc8d38ba5e912d0fd0d4d23ed268ae152c5ee.tar.bz2 | |
drm/tinydrm/mipi-dbi: Add mipi_dbi_enable_flush()
Add and use a function for enabling, flushing and turning on backlight.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-4-noralf@tronnes.org
Diffstat (limited to 'drivers/gpu/drm/tinydrm/mipi-dbi.c')
| -rw-r--r-- | drivers/gpu/drm/tinydrm/mipi-dbi.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c index aa6b6ce56891..1c8ef0c4d6d4 100644 --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c @@ -271,6 +271,26 @@ static const struct drm_framebuffer_funcs mipi_dbi_fb_funcs = { }; /** + * mipi_dbi_enable_flush - MIPI DBI enable helper + * @mipi: MIPI DBI structure + * + * This function sets &mipi_dbi->enabled, flushes the whole framebuffer and + * enables the backlight. Drivers can use this in their + * &drm_simple_display_pipe_funcs->enable callback. + */ +void mipi_dbi_enable_flush(struct mipi_dbi *mipi) +{ + struct drm_framebuffer *fb = mipi->tinydrm.pipe.plane.fb; + + mipi->enabled = true; + if (fb) + fb->funcs->dirty(fb, NULL, 0, 0, NULL, 0); + + tinydrm_enable_backlight(mipi->backlight); +} +EXPORT_SYMBOL(mipi_dbi_enable_flush); + +/** * mipi_dbi_pipe_enable - MIPI DBI pipe enable helper * @pipe: Display pipe * @crtc_state: CRTC state |