diff options
author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-09-05 17:16:46 +0300 |
---|---|---|
committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-09-12 10:14:26 +0300 |
commit | 216b9bbaeaea96b7f05c220f61855d174be972d8 (patch) | |
tree | 89e0c2bc96f351183fcff9fabab3b7ea442bfc25 /drivers/gpu | |
parent | d25654b3fad9906ca80912701fd4bd6e2419f54d (diff) | |
download | linux-216b9bbaeaea96b7f05c220f61855d174be972d8.tar.xz |
drm/probe-helper: Add drm_crtc_helper_mode_valid_fixed()
Add drm_crtc_helper_mode_valid_fixed(), which validates a given mode
against a display hardware's mode. Convert simpledrm and use it in a
few other drivers with static modes.
v4:
* remove empty line after opening brace
v2:
* rename 'static' and 'hw' to 'fixed' everywhere
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-3-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/drm_mipi_dbi.c | 18 | ||||
-rw-r--r-- | drivers/gpu/drm/drm_probe_helper.c | 24 | ||||
-rw-r--r-- | drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/hx8357d.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/ili9163.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/ili9341.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/ili9486.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/mi0283qt.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/panel-mipi-dbi.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/repaper.c | 10 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/simpledrm.c | 10 | ||||
-rw-r--r-- | drivers/gpu/drm/tiny/st7735r.c | 1 |
12 files changed, 61 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c index de2a5be67415..a6ac56580876 100644 --- a/drivers/gpu/drm/drm_mipi_dbi.c +++ b/drivers/gpu/drm/drm_mipi_dbi.c @@ -310,6 +310,24 @@ err_drm_dev_exit: } /** + * mipi_dbi_pipe_mode_valid - MIPI DBI mode-valid helper + * @pipe: Simple display pipe + * @mode: The mode to test + * + * This function validates a given display mode against the MIPI DBI's hardware + * display. Drivers can use this as their &drm_simple_display_pipe_funcs->mode_valid + * callback. + */ +enum drm_mode_status mipi_dbi_pipe_mode_valid(struct drm_simple_display_pipe *pipe, + const struct drm_display_mode *mode) +{ + struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); + + return drm_crtc_helper_mode_valid_fixed(&pipe->crtc, mode, &dbidev->mode); +} +EXPORT_SYMBOL(mipi_dbi_pipe_mode_valid); + +/** * mipi_dbi_pipe_update - Display pipe update helper * @pipe: Simple display pipe * @old_state: Old plane state diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index 818150a1b3b0..69b0b2b9cc1c 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -1015,6 +1015,30 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev) EXPORT_SYMBOL(drm_helper_hpd_irq_event); /** + * drm_crtc_helper_mode_valid_fixed - Validates a display mode + * @crtc: the crtc + * @mode: the mode to validate + * @fixed_mode: the display hardware's mode + * + * Returns: + * MODE_OK on success, or another mode-status code otherwise. + */ +enum drm_mode_status drm_crtc_helper_mode_valid_fixed(struct drm_crtc *crtc, + const struct drm_display_mode *mode, + const struct drm_display_mode *fixed_mode) +{ + if (mode->hdisplay != fixed_mode->hdisplay && mode->vdisplay != fixed_mode->vdisplay) + return MODE_ONE_SIZE; + else if (mode->hdisplay != fixed_mode->hdisplay) + return MODE_ONE_WIDTH; + else if (mode->vdisplay != fixed_mode->vdisplay) + return MODE_ONE_HEIGHT; + + return MODE_OK; +} +EXPORT_SYMBOL(drm_crtc_helper_mode_valid_fixed); + +/** * drm_connector_helper_get_modes_from_ddc - Updates the connector's EDID * property from the connector's * DDC channel diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c index 7da09e34385d..39dc40cf681f 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9341.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9341.c @@ -576,6 +576,7 @@ out_exit: } static const struct drm_simple_display_pipe_funcs ili9341_dbi_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = ili9341_dbi_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c index 57f229a785bf..48c24aa8c28a 100644 --- a/drivers/gpu/drm/tiny/hx8357d.c +++ b/drivers/gpu/drm/tiny/hx8357d.c @@ -181,6 +181,7 @@ out_exit: } static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = yx240qv29_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, diff --git a/drivers/gpu/drm/tiny/ili9163.c b/drivers/gpu/drm/tiny/ili9163.c index 86439e50e304..9a1a5943bee0 100644 --- a/drivers/gpu/drm/tiny/ili9163.c +++ b/drivers/gpu/drm/tiny/ili9163.c @@ -100,6 +100,7 @@ out_exit: } static const struct drm_simple_display_pipe_funcs ili9163_pipe_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = yx240qv29_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c index b8826a0b086b..69b265e78096 100644 --- a/drivers/gpu/drm/tiny/ili9341.c +++ b/drivers/gpu/drm/tiny/ili9341.c @@ -137,6 +137,7 @@ out_exit: } static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = yx240qv29_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c index a5b433a8e0d8..c80028bb1d11 100644 --- a/drivers/gpu/drm/tiny/ili9486.c +++ b/drivers/gpu/drm/tiny/ili9486.c @@ -150,6 +150,7 @@ static void waveshare_enable(struct drm_simple_display_pipe *pipe, } static const struct drm_simple_display_pipe_funcs waveshare_pipe_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = waveshare_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c index 27f1bd4da2f4..bc522fb3d94d 100644 --- a/drivers/gpu/drm/tiny/mi0283qt.c +++ b/drivers/gpu/drm/tiny/mi0283qt.c @@ -141,6 +141,7 @@ out_exit: } static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = mi0283qt_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, diff --git a/drivers/gpu/drm/tiny/panel-mipi-dbi.c b/drivers/gpu/drm/tiny/panel-mipi-dbi.c index a76fefa8adbc..955a61d628e7 100644 --- a/drivers/gpu/drm/tiny/panel-mipi-dbi.c +++ b/drivers/gpu/drm/tiny/panel-mipi-dbi.c @@ -212,6 +212,7 @@ out_exit: } static const struct drm_simple_display_pipe_funcs panel_mipi_dbi_pipe_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = panel_mipi_dbi_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c index 01fbd00411fc..e62f4d16b2c6 100644 --- a/drivers/gpu/drm/tiny/repaper.c +++ b/drivers/gpu/drm/tiny/repaper.c @@ -621,6 +621,15 @@ static void power_off(struct repaper_epd *epd) gpiod_set_value_cansleep(epd->discharge, 0); } +static enum drm_mode_status repaper_pipe_mode_valid(struct drm_simple_display_pipe *pipe, + const struct drm_display_mode *mode) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct repaper_epd *epd = drm_to_epd(crtc->dev); + + return drm_crtc_helper_mode_valid_fixed(crtc, mode, epd->mode); +} + static void repaper_pipe_enable(struct drm_simple_display_pipe *pipe, struct drm_crtc_state *crtc_state, struct drm_plane_state *plane_state) @@ -831,6 +840,7 @@ static void repaper_pipe_update(struct drm_simple_display_pipe *pipe, } static const struct drm_simple_display_pipe_funcs repaper_pipe_funcs = { + .mode_valid = repaper_pipe_mode_valid, .enable = repaper_pipe_enable, .disable = repaper_pipe_disable, .update = repaper_pipe_update, diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index c79576844ec0..5bed4d564104 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -570,15 +570,7 @@ static enum drm_mode_status simpledrm_crtc_helper_mode_valid(struct drm_crtc *cr { struct simpledrm_device *sdev = simpledrm_device_of_dev(crtc->dev); - if (mode->hdisplay != sdev->mode.hdisplay && - mode->vdisplay != sdev->mode.vdisplay) - return MODE_ONE_SIZE; - else if (mode->hdisplay != sdev->mode.hdisplay) - return MODE_ONE_WIDTH; - else if (mode->vdisplay != sdev->mode.vdisplay) - return MODE_ONE_HEIGHT; - - return MODE_OK; + return drm_crtc_helper_mode_valid_fixed(crtc, mode, &sdev->mode); } static int simpledrm_crtc_helper_atomic_check(struct drm_crtc *crtc, diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c index d2042a0f02dd..c36ba08acda1 100644 --- a/drivers/gpu/drm/tiny/st7735r.c +++ b/drivers/gpu/drm/tiny/st7735r.c @@ -133,6 +133,7 @@ out_exit: } static const struct drm_simple_display_pipe_funcs st7735r_pipe_funcs = { + .mode_valid = mipi_dbi_pipe_mode_valid, .enable = st7735r_pipe_enable, .disable = mipi_dbi_pipe_disable, .update = mipi_dbi_pipe_update, |