[PATCH 1/1] drm/sti: enable fbdev compatibility through module param
Vincent ABRIOU
vincent.abriou at st.com
Fri Oct 30 05:22:27 PDT 2015
On 10/30/2015 11:38 AM, Daniel Vetter wrote:
> On Thu, Oct 29, 2015 at 02:02:29PM +0100, Vincent Abriou wrote:
>> DRM_STI_FBDEV is removed and replaced by the fbdev module param.
>> By default, the fbdev compatibility is disabled.
>>
>> Signed-off-by: Vincent Abriou <vincent.abriou at st.com>
>> Signed-off-by: Nicolas VANHAELEWYN <nicolas.vanhaelewyn at st.com>
>
> Already replied somewhere else, but we have this in the core fb helpers
> with drm_kms_helper.fbdev_emulation module option. Just make sure that one
> works for sti.
> -Daniel
>
I was not aware about this.
fbdev_emulation module option works fine for sti driver.
This patch could be abandonned
Thanks
Vincent
>> ---
>> drivers/gpu/drm/sti/Kconfig | 6 ------
>> drivers/gpu/drm/sti/sti_drv.c | 15 ++++++++++-----
>> 2 files changed, 10 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/sti/Kconfig b/drivers/gpu/drm/sti/Kconfig
>> index 0a9048c..3f8d590 100644
>> --- a/drivers/gpu/drm/sti/Kconfig
>> +++ b/drivers/gpu/drm/sti/Kconfig
>> @@ -10,9 +10,3 @@ config DRM_STI
>> select FW_LOADER_USER_HELPER_FALLBACK
>> help
>> Choose this option to enable DRM on STM stiH41x chipset
>> -
>> -config DRM_STI_FBDEV
>> - bool "DRM frame buffer device for STMicroelectronics SoC stiH41x Serie"
>> - depends on DRM_STI
>> - help
>> - Choose this option to enable FBDEV on top of DRM for STM stiH41x chipset
>> diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
>> index e19c173..d47b025 100644
>> --- a/drivers/gpu/drm/sti/sti_drv.c
>> +++ b/drivers/gpu/drm/sti/sti_drv.c
>> @@ -30,6 +30,11 @@
>> #define STI_MAX_FB_HEIGHT 4096
>> #define STI_MAX_FB_WIDTH 4096
>>
>> +/* Module parameter to enable fbdev compatibility */
>> +static bool fbdev_enabled;
>> +MODULE_PARM_DESC(fbdev, "Enable fbdev compatibility layer");
>> +module_param_named(fbdev, fbdev_enabled, bool, 0644);
>> +
>> static void sti_atomic_schedule(struct sti_private *private,
>> struct drm_atomic_state *state)
>> {
>> @@ -160,11 +165,11 @@ static int sti_load(struct drm_device *dev, unsigned long flags)
>>
>> drm_mode_config_reset(dev);
>>
>> -#ifdef CONFIG_DRM_STI_FBDEV
>> - drm_fbdev_cma_init(dev, 32,
>> - dev->mode_config.num_crtc,
>> - dev->mode_config.num_connector);
>> -#endif
>> + if (fbdev_enabled)
>> + drm_fbdev_cma_init(dev, 32,
>> + dev->mode_config.num_crtc,
>> + dev->mode_config.num_connector);
>> +
>> return 0;
>> }
>>
>> --
>> 1.9.1
>>
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>
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