The patch, which is backwards compatible, sets the bit depth of the framebuffer using the optional property 'st,fb-bpp' in the DTS.
Signed-off-by: Dario Binacchi <dario.binac...@amarulasolutions.com> --- Changes in v4: - Use DTS property instead of module parameter to set the framebuffer bit depth. Changes in v3: - drop [4/6] dt-bindings: display: simple: add Rocktech RK043FN48H Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next): https://cgit.freedesktop.org/drm/drm-misc/commit/?id=c42a37a27c777d63961dd634a30f7c887949491a - drop [5/6] drm/panel: simple: add support for Rocktech RK043FN48H panel Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next) https://cgit.freedesktop.org/drm/drm-misc/commit/?id=13cdd12a9f934158f4ec817cf048fcb4384aa9dc drivers/gpu/drm/stm/drv.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c index 422220df7d8c..7a61a3c63469 100644 --- a/drivers/gpu/drm/stm/drv.c +++ b/drivers/gpu/drm/stm/drv.c @@ -180,7 +180,9 @@ static const struct dev_pm_ops drv_pm_ops = { static int stm_drm_platform_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct device_node *np = pdev->dev.of_node; struct drm_device *ddev; + u32 fb_bpp = 16; int ret; DRM_DEBUG("%s\n", __func__); @@ -203,7 +205,9 @@ static int stm_drm_platform_probe(struct platform_device *pdev) if (ret) goto err_put; - drm_fbdev_dma_setup(ddev, 16); + of_property_read_u32(np, "st,fb-bpp", &fb_bpp); + + drm_fbdev_dma_setup(ddev, fb_bpp); return 0; -- 2.32.0
