Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Abhinav Kumar <quic_abhinavk@quicinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.19 0438/1157] drm/msm/dpu: remove hard-coded linewidth limit for writeback
Date:   Mon, 15 Aug 2022 19:56:34 +0200
Message-Id: <20220815180457.156506873@linuxfoundation.org>
In-Reply-To: <20220815180439.416659447@linuxfoundation.org>
References: <20220815180439.416659447@linuxfoundation.org>
User-Agent: quilt/0.67
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Abhinav Kumar <quic_abhinavk@quicinc.com>

[ Upstream commit 4edea8d305873336a626c5f4ce17cb8751059054 ]

Remove the hard-coded limit for writeback and lets start using
the one from catalog instead.

changes in v3:
	- correct the Fixes tag

Fixes: d7d0e73f7de3 ("drm/msm/dpu: introduce the dpu_encoder_phys_* for writeback")
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/489888/
Link: https://lore.kernel.org/r/1655406084-17407-3-git-send-email-quic_abhinavk@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
index 0ec809ab06e7..15919e1a8dc3 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
@@ -20,8 +20,6 @@
 #include "dpu_crtc.h"
 #include "disp/msm_disp_snapshot.h"
 
-#define DEFAULT_MAX_WRITEBACK_WIDTH 2048
-
 #define to_dpu_encoder_phys_wb(x) \
 	container_of(x, struct dpu_encoder_phys_wb, base)
 
@@ -278,9 +276,9 @@ static int dpu_encoder_phys_wb_atomic_check(
 		DPU_ERROR("invalid fb h=%d, mode h=%d\n", fb->height,
 				  mode->vdisplay);
 		return -EINVAL;
-	} else if (fb->width > DEFAULT_MAX_WRITEBACK_WIDTH) {
+	} else if (fb->width > phys_enc->hw_wb->caps->maxlinewidth) {
 		DPU_ERROR("invalid fb w=%d, maxlinewidth=%u\n",
-				  fb->width, DEFAULT_MAX_WRITEBACK_WIDTH);
+				  fb->width, phys_enc->hw_wb->caps->maxlinewidth);
 		return -EINVAL;
 	}
 
-- 
2.35.1