[PATCH 21/39] drm/imx: dc: crtc: Do not check disabled CRTCs

[Marek Vasut]

If the CRTC is disabled, do not check it, as the check will fail.
Skip over the disabled CRTC.

Signed-off-by: Marek Vasut <marek.vasut at mailbox.org>
---
Cc: Abel Vesa <abelvesa at kernel.org>
Cc: Conor Dooley <conor+dt at kernel.org>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart at ideasonboard.com>
Cc: Liu Ying <victor.liu at nxp.com>
Cc: Lucas Stach <l.stach at pengutronix.de>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Rob Herring <robh at kernel.org>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: devicetree at vger.kernel.org
Cc: dri-devel at lists.freedesktop.org
Cc: imx at lists.linux.dev
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-clk at vger.kernel.org
---
 drivers/gpu/drm/imx/dc/dc-crtc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/imx/dc/dc-crtc.c b/drivers/gpu/drm/imx/dc/dc-crtc.c
index 56991cb033945..4955f519db917 100644
--- a/drivers/gpu/drm/imx/dc/dc-crtc.c
+++ b/drivers/gpu/drm/imx/dc/dc-crtc.c
@@ -156,6 +156,10 @@ dc_crtc_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state)
 	struct dc_crtc *dc_crtc = to_dc_crtc(crtc);
 	enum drm_mode_status status;
 
+	/* If we are not active we don't care */
+	if (!new_crtc_state->active)
+		return 0;
+
 	status = dc_crtc_check_clock(dc_crtc, adj->clock);
 	if (status != MODE_OK)
 		return -EINVAL;
-- 
2.51.0