[PATCH 2/4] drm/probe-helper: Add drm_crtc_helper_mode_valid_static()
Thomas Zimmermann
tzimmermann at suse.de
Fri Aug 12 16:37:17 UTC 2022
Hi Sam
Am 10.08.22 um 21:26 schrieb Sam Ravnborg:
> Hi Thomas,
>
> On Wed, Aug 10, 2022 at 01:20:51PM +0200, Thomas Zimmermann wrote:
>> Add drm_crtc_helper_mode_valid_static(), which validates a given mode
>> against a display hardware's mode. Convert simpledrm and use it in a
>> few other drivers with static modes.
>>
>> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
>
> With the header file fixed,
The include statement is required for enum drm_mode_status.
Best regards
Thomas
> Reviewed-by: Sam Ravnborg <sam at ravnborg.org>
>
>> ---
>> drivers/gpu/drm/drm_mipi_dbi.c | 18 ++++++++++++++
>> drivers/gpu/drm/drm_probe_helper.c | 25 ++++++++++++++++++++
>> drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 1 +
>> drivers/gpu/drm/tiny/hx8357d.c | 1 +
>> drivers/gpu/drm/tiny/ili9163.c | 1 +
>> drivers/gpu/drm/tiny/ili9341.c | 1 +
>> drivers/gpu/drm/tiny/ili9486.c | 1 +
>> drivers/gpu/drm/tiny/mi0283qt.c | 1 +
>> drivers/gpu/drm/tiny/panel-mipi-dbi.c | 1 +
>> drivers/gpu/drm/tiny/repaper.c | 10 ++++++++
>> drivers/gpu/drm/tiny/simpledrm.c | 10 +-------
>> drivers/gpu/drm/tiny/st7735r.c | 1 +
>> include/drm/drm_mipi_dbi.h | 2 ++
>> include/drm/drm_probe_helper.h | 8 +++++--
>> 14 files changed, 70 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
>> index b67ec9a5cda9..d544a99df9df 100644
>> --- a/drivers/gpu/drm/drm_mipi_dbi.c
>> +++ b/drivers/gpu/drm/drm_mipi_dbi.c
>> @@ -309,6 +309,24 @@ static void mipi_dbi_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)
>> drm_dev_exit(idx);
>> }
>>
>> +/**
>> + * 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_static(&pipe->crtc, mode, &dbidev->mode);
>> +}
>> +EXPORT_SYMBOL(mipi_dbi_pipe_mode_valid);
>> +
>> /**
>> * mipi_dbi_pipe_update - Display pipe update helper
>> * @pipe: Simple display pipe
>> diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
>> index 809187377e4e..bc3876853fca 100644
>> --- a/drivers/gpu/drm/drm_probe_helper.c
>> +++ b/drivers/gpu/drm/drm_probe_helper.c
>> @@ -1014,6 +1014,31 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev)
>> }
>> EXPORT_SYMBOL(drm_helper_hpd_irq_event);
>>
>> +/**
>> + * drm_crtc_helper_mode_valid_static - Validates a display mode
>> + * @crtc: the crtc
>> + * @mode: the mode to validate
>> + * @hw_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_static(struct drm_crtc *crtc,
>> + const struct drm_display_mode *mode,
>> + const struct drm_display_mode *hw_mode)
>> +{
>> +
>> + if (mode->hdisplay != hw_mode->hdisplay && mode->vdisplay != hw_mode->vdisplay)
>> + return MODE_ONE_SIZE;
>> + else if (mode->hdisplay != hw_mode->hdisplay)
>> + return MODE_ONE_WIDTH;
>> + else if (mode->vdisplay != hw_mode->vdisplay)
>> + return MODE_ONE_HEIGHT;
>> +
>> + return MODE_OK;
>> +}
>> +EXPORT_SYMBOL(drm_crtc_helper_mode_valid_static);
>> +
>> /**
>> * drm_connector_helper_get_modes_from_ddc - Updates the connector's EDID
>> * property from the connector's
>> 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 @@ static void ili9341_dbi_enable(struct drm_simple_display_pipe *pipe,
>> }
>>
>> 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 @@ static void yx240qv29_enable(struct drm_simple_display_pipe *pipe,
>> }
>>
>> 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 @@ static void yx240qv29_enable(struct drm_simple_display_pipe *pipe,
>> }
>>
>> 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 @@ static void yx240qv29_enable(struct drm_simple_display_pipe *pipe,
>> }
>>
>> 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 @@ static void mi0283qt_enable(struct drm_simple_display_pipe *pipe,
>> }
>>
>> 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 @@ static void panel_mipi_dbi_enable(struct drm_simple_display_pipe *pipe,
>> }
>>
>> 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 855968fd46af..a7995a3c9397 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_static(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 2d5b56c4a77d..31d3bc6c5acf 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_static(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 @@ static void st7735r_pipe_enable(struct drm_simple_display_pipe *pipe,
>> }
>>
>> 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,
>> diff --git a/include/drm/drm_mipi_dbi.h b/include/drm/drm_mipi_dbi.h
>> index dad2f187b64b..14eaecb1825c 100644
>> --- a/include/drm/drm_mipi_dbi.h
>> +++ b/include/drm/drm_mipi_dbi.h
>> @@ -155,6 +155,8 @@ int mipi_dbi_dev_init_with_formats(struct mipi_dbi_dev *dbidev,
>> int mipi_dbi_dev_init(struct mipi_dbi_dev *dbidev,
>> const struct drm_simple_display_pipe_funcs *funcs,
>> const struct drm_display_mode *mode, unsigned int rotation);
>> +enum drm_mode_status mipi_dbi_pipe_mode_valid(struct drm_simple_display_pipe *pipe,
>> + const struct drm_display_mode *mode);
>> void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe,
>> struct drm_plane_state *old_state);
>> void mipi_dbi_enable_flush(struct mipi_dbi_dev *dbidev,
>> diff --git a/include/drm/drm_probe_helper.h b/include/drm/drm_probe_helper.h
>> index 5a883ee9fc32..22b283b35654 100644
>> --- a/include/drm/drm_probe_helper.h
>> +++ b/include/drm/drm_probe_helper.h
>> @@ -3,11 +3,11 @@
>> #ifndef __DRM_PROBE_HELPER_H__
>> #define __DRM_PROBE_HELPER_H__
>>
>> -#include <linux/types.h>
>> +#include <drm/drm_modes.h>
> There is no reason to pull in the header, a forward of struct drm_display_mode
> should be enough. I expect this to be a left-over from a previous
> iteration.
>
>>
>> struct drm_connector;
>> +struct drm_crtc;
>> struct drm_device;
>> -struct drm_display_mode;
>> struct drm_modeset_acquire_ctx;
>>
>> int drm_helper_probe_single_connector_modes(struct drm_connector
>> @@ -27,6 +27,10 @@ void drm_kms_helper_poll_disable(struct drm_device *dev);
>> void drm_kms_helper_poll_enable(struct drm_device *dev);
>> bool drm_kms_helper_is_poll_worker(void);
>>
>> +enum drm_mode_status drm_crtc_helper_mode_valid_static(struct drm_crtc *crtc,
>> + const struct drm_display_mode *mode,
>> + const struct drm_display_mode *hw_mode);
>> +
>> int drm_connector_helper_get_modes_from_ddc(struct drm_connector *connector);
>> int drm_connector_helper_get_modes_static(struct drm_connector *connector,
>> const struct drm_display_mode *hw_mode);
>> --
>> 2.37.1
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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