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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
This commit is contained in:
Noralf Trønnes 2018-01-10 19:59:36 +01:00
parent 24e05e7a82
commit 22edc8d38b
5 changed files with 24 additions and 11 deletions
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6
drivers/gpu/drm/tinydrm/ili9225.c
View File

@ -180,7 +180,6 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
{
struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
struct drm_framebuffer *fb = pipe->plane.fb;
struct device *dev = tdev->drm->dev;
int ret;
u8 am_id;
@ -269,10 +268,7 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
ili9225_command(mipi, ILI9225_DISPLAY_CONTROL_1, 0x1017);
mipi->enabled = true;
if (fb)
fb->funcs->dirty(fb, NULL, 0, 0, NULL, 0);
mipi_dbi_enable_flush(mipi);
}
static void ili9225_pipe_disable(struct drm_simple_display_pipe *pipe)

20
drivers/gpu/drm/tinydrm/mipi-dbi.c
View File

@ -270,6 +270,26 @@ static const struct drm_framebuffer_funcs mipi_dbi_fb_funcs = {
.dirty = mipi_dbi_fb_dirty,
};
/**
* 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

6
drivers/gpu/drm/tinydrm/st7586.c
View File

@ -179,7 +179,6 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
{
struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
struct drm_framebuffer *fb = pipe->plane.fb;
struct device *dev = tdev->drm->dev;
int ret;
u8 addr_mode;
@ -241,10 +240,7 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON);
mipi->enabled = true;
if (fb)
fb->funcs->dirty(fb, NULL, 0, 0, NULL, 0);
mipi_dbi_enable_flush(mipi);
}
static void st7586_pipe_disable(struct drm_simple_display_pipe *pipe)

2
drivers/gpu/drm/tinydrm/st7735r.c
View File

@ -102,7 +102,7 @@ static void jd_t18003_t01_pipe_enable(struct drm_simple_display_pipe *pipe,
msleep(20);
mipi_dbi_pipe_enable(pipe, crtc_state);
mipi_dbi_enable_flush(mipi);
}
static const struct drm_simple_display_pipe_funcs jd_t18003_t01_pipe_funcs = {

1
include/drm/tinydrm/mipi-dbi.h
View File

@ -67,6 +67,7 @@ int mipi_dbi_init(struct device *dev, struct mipi_dbi *mipi,
const struct drm_simple_display_pipe_funcs *pipe_funcs,
struct drm_driver *driver,
const struct drm_display_mode *mode, unsigned int rotation);
void mipi_dbi_enable_flush(struct mipi_dbi *mipi);
void mipi_dbi_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state);
void mipi_dbi_pipe_disable(struct drm_simple_display_pipe *pipe);