linux-kernel - [PATCH v4 08/10] drm/arm: malidp: Use crtc->mode

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Message-Id: <7d0011d2b6a3b9ff892373e59e20efa1990500e1.1495091280.git.joabreu@synopsys.com>
Date:   Fri, 19 May 2017 01:52:17 +0100
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     Jose Abreu <Jose.Abreu@...opsys.com>,
        Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
        Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Dave Airlie <airlied@...ux.ie>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Archit Taneja <architt@...eaurora.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: [PATCH v4 08/10] drm/arm: malidp: Use crtc->mode_valid() callback

Now that we have a callback to check if crtc supports a given mode
we can use it in malidp so that we restrict the number of probbed
modes to the ones we can actually display.

Also, remove the mode_fixup() callback as this is no longer needed
because mode_valid() will be called before.

NOTE: Not even compiled tested

Signed-off-by: Jose Abreu <joabreu@...opsys.com>
Cc: Carlos Palminha <palminha@...opsys.com>
Cc: Alexey Brodkin <abrodkin@...opsys.com>
Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Dave Airlie <airlied@...ux.ie>
Cc: Andrzej Hajda <a.hajda@...sung.com>
Cc: Archit Taneja <architt@...eaurora.org>
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
---
 drivers/gpu/drm/arm/malidp_crtc.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/arm/malidp_crtc.c b/drivers/gpu/drm/arm/malidp_crtc.c
index 9446a67..4bb38a2 100644
--- a/drivers/gpu/drm/arm/malidp_crtc.c
+++ b/drivers/gpu/drm/arm/malidp_crtc.c
@@ -22,9 +22,8 @@
 #include "malidp_drv.h"
 #include "malidp_hw.h"
 
-static bool malidp_crtc_mode_fixup(struct drm_crtc *crtc,
-				   const struct drm_display_mode *mode,
-				   struct drm_display_mode *adjusted_mode)
+static enum drm_mode_status malidp_crtc_mode_valid(struct drm_crtc *crtc,
+						   const struct drm_display_mode *mode)
 {
 	struct malidp_drm *malidp = crtc_to_malidp_device(crtc);
 	struct malidp_hw_device *hwdev = malidp->dev;
@@ -40,11 +39,11 @@ static bool malidp_crtc_mode_fixup(struct drm_crtc *crtc,
 		if (rate != req_rate) {
 			DRM_DEBUG_DRIVER("pxlclk doesn't support %ld Hz\n",
 					 req_rate);
-			return false;
+			return MODE_NOCLOCK;
 		}
 	}
 
-	return true;
+	return MODE_OK;
 }
 
 static void malidp_crtc_enable(struct drm_crtc *crtc)
@@ -408,7 +407,7 @@ static int malidp_crtc_atomic_check(struct drm_crtc *crtc,
 }
 
 static const struct drm_crtc_helper_funcs malidp_crtc_helper_funcs = {
-	.mode_fixup = malidp_crtc_mode_fixup,
+	.mode_valid = malidp_crtc_mode_valid,
 	.enable = malidp_crtc_enable,
 	.disable = malidp_crtc_disable,
 	.atomic_check = malidp_crtc_atomic_check,
-- 
1.9.1