From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrzej Hajda Subject: [PATCH 1/7] drm/exynos: add atomic_check callback to exynos_crtc Date: Mon, 26 Oct 2015 13:03:39 +0100 Message-ID: <1445861025-23266-2-git-send-email-a.hajda@samsung.com> References: <1445861025-23266-1-git-send-email-a.hajda@samsung.com> Return-path: Received: from mailout4.w1.samsung.com ([210.118.77.14]:40362 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753488AbbJZMEC (ORCPT ); Mon, 26 Oct 2015 08:04:02 -0400 Received: from eucpsbgm1.samsung.com (unknown [203.254.199.244]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NWT00D7VTIMZM20@mailout4.w1.samsung.com> for linux-samsung-soc@vger.kernel.org; Mon, 26 Oct 2015 12:03:58 +0000 (GMT) In-reply-to: <1445861025-23266-1-git-send-email-a.hajda@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Inki Dae Cc: Andrzej Hajda , Bartlomiej Zolnierkiewicz , Marek Szyprowski , Kyungmin Park , Krzysztof Kozlowski , "open list:DRM DRIVERS FOR EXYNOS" , "moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES" Some CRTCs needs mode validation, this patch adds neccessary callback to Exynos DRM framework. It is called from DRM core via atomic_check helper for drm_crtc. Signed-off-by: Andrzej Hajda --- drivers/gpu/drm/exynos/exynos_drm_crtc.c | 12 ++++++++++++ drivers/gpu/drm/exynos/exynos_drm_drv.h | 3 +++ 2 files changed, 15 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index 50dec0d..b3ba27f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -50,6 +50,17 @@ exynos_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) exynos_crtc->ops->commit(exynos_crtc); } +static int exynos_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); + + if (exynos_crtc->ops->atomic_check) + return exynos_crtc->ops->atomic_check(exynos_crtc, state); + + return 0; +} + static void exynos_crtc_atomic_begin(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state) { @@ -86,6 +97,7 @@ static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = { .enable = exynos_drm_crtc_enable, .disable = exynos_drm_crtc_disable, .mode_set_nofb = exynos_drm_crtc_mode_set_nofb, + .atomic_check = exynos_crtc_atomic_check, .atomic_begin = exynos_crtc_atomic_begin, .atomic_flush = exynos_crtc_atomic_flush, }; diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 638fc43..f1eda7f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -89,6 +89,7 @@ struct exynos_drm_plane { * @disable_vblank: specific driver callback for disabling vblank interrupt. * @wait_for_vblank: wait for vblank interrupt to make sure that * hardware overlay is updated. + * @atomic_check: validate state * @atomic_begin: prepare a window to receive a update * @atomic_flush: mark the end of a window update * @update_plane: apply hardware specific overlay data to registers. @@ -108,6 +109,8 @@ struct exynos_drm_crtc_ops { int (*enable_vblank)(struct exynos_drm_crtc *crtc); void (*disable_vblank)(struct exynos_drm_crtc *crtc); void (*wait_for_vblank)(struct exynos_drm_crtc *crtc); + int (*atomic_check)(struct exynos_drm_crtc *crtc, + struct drm_crtc_state *state); void (*atomic_begin)(struct exynos_drm_crtc *crtc, struct exynos_drm_plane *plane); void (*update_plane)(struct exynos_drm_crtc *crtc, -- 1.9.1