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From:   Marijn Suijten <marijn.suijten@somainline.org>
To:     phone-devel@vger.kernel.org, Rob Clark <robdclark@gmail.com>,
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        Martin Botka <martin.botka@somainline.org>,
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        Marek Vasut <marex@denx.de>
Subject: [PATCH 2/5] drm/msm/dsi: Remove repeated calculation of slice_per_intf
Date:   Sat,  1 Oct 2022 21:08:04 +0200
Message-Id: <20221001190807.358691-3-marijn.suijten@somainline.org>
In-Reply-To: <20221001190807.358691-1-marijn.suijten@somainline.org>
References: <20221001190807.358691-1-marijn.suijten@somainline.org>
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Precedence: bulk

slice_per_intf is already computed for intf_width, which holds the same
value as hdisplay.

Fixes: 08802f515c3c ("drm/msm/dsi: Add support for DSC configuration")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index e05bae647431..cb6f2fa11f58 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -842,7 +842,7 @@ static void dsi_ctrl_config(struct msm_dsi_host *msm_host, bool enable,
 static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mode, u32 hdisplay)
 {
 	struct drm_dsc_config *dsc = msm_host->dsc;
-	u32 reg, intf_width, reg_ctrl, reg_ctrl2;
+	u32 reg, reg_ctrl, reg_ctrl2;
 	u32 slice_per_intf, total_bytes_per_intf;
 	u32 pkt_per_line;
 	u32 bytes_in_slice;
@@ -851,8 +851,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 	/* first calculate dsc parameters and then program
 	 * compress mode registers
 	 */
-	intf_width = hdisplay;
-	slice_per_intf = DIV_ROUND_UP(intf_width, dsc->slice_width);
+	slice_per_intf = DIV_ROUND_UP(hdisplay, dsc->slice_width);
 
 	/* If slice_per_pkt is greater than slice_per_intf
 	 * then default to 1. This can happen during partial
@@ -861,7 +860,6 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod
 	if (slice_per_intf > dsc->slice_count)
 		dsc->slice_count = 1;
 
-	slice_per_intf = DIV_ROUND_UP(hdisplay, dsc->slice_width);
 	bytes_in_slice = DIV_ROUND_UP(dsc->slice_width * dsc->bits_per_pixel, 8);
 
 	dsc->slice_chunk_size = bytes_in_slice;
-- 
2.37.3