linux-kernel - [PATCH v5] staging:sm750fb: Code readability is improved.

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Message-ID: <20170320140656.GA5137@arushi-HP-Pavilion-Notebook>
Date:   Mon, 20 Mar 2017 19:36:56 +0530
From:   Arushi Singhal <arushisinghal19971997@...il.com>
To:     sudipm.mukherjee@...il.com
Cc:     Teddy Wang <teddy.wang@...iconmotion.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-fbdev@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, outreachy-kernel@...glegroups.com
Subject: [PATCH v5] staging:sm750fb: Code readability is improved.

New variables are added to make the code more readable.

Signed-off-by: Arushi Singhal <arushisinghal19971997@...il.com>
---
 changes in v5
 -try to make the code much more readable.
 - defined the variable at the top of a block.
 - change the variable from temp to tmp.

 drivers/staging/sm750fb/ddk750_mode.c | 55 +++++++++++++++++++----------------
 1 file changed, 30 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
index eea5aef2956f..37b5d4850fb9 100644
--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -81,33 +81,38 @@ static int programModeRegisters(mode_parameter_t *pModeParam, struct pll_value *
 	if (pll->clockType == SECONDARY_PLL) {
 		/* programe secondary pixel clock */
 		poke32(CRT_PLL_CTRL, sm750_format_pll_reg(pll));
-		poke32(CRT_HORIZONTAL_TOTAL,
-		       (((pModeParam->horizontal_total - 1) <<
-			 CRT_HORIZONTAL_TOTAL_TOTAL_SHIFT) &
-			CRT_HORIZONTAL_TOTAL_TOTAL_MASK) |
-		       ((pModeParam->horizontal_display_end - 1) &
-			CRT_HORIZONTAL_TOTAL_DISPLAY_END_MASK));
-
-		poke32(CRT_HORIZONTAL_SYNC,
-		       ((pModeParam->horizontal_sync_width <<
-			 CRT_HORIZONTAL_SYNC_WIDTH_SHIFT) &
-			CRT_HORIZONTAL_SYNC_WIDTH_MASK) |
-		       ((pModeParam->horizontal_sync_start - 1) &
-			CRT_HORIZONTAL_SYNC_START_MASK));
 
-		poke32(CRT_VERTICAL_TOTAL,
-		       (((pModeParam->vertical_total - 1) <<
-			 CRT_VERTICAL_TOTAL_TOTAL_SHIFT) &
-			CRT_VERTICAL_TOTAL_TOTAL_MASK) |
-		       ((pModeParam->vertical_display_end - 1) &
-			CRT_VERTICAL_TOTAL_DISPLAY_END_MASK));
+		tmp = ((pModeParam->horizontal_total - 1) <<
+		       CRT_HORIZONTAL_TOTAL_TOTAL_SHIFT) &
+		     CRT_HORIZONTAL_TOTAL_TOTAL_MASK;
+		tmp |= (pModeParam->horizontal_display_end - 1) &
+		      CRT_HORIZONTAL_TOTAL_DISPLAY_END_MASK;
 
-		poke32(CRT_VERTICAL_SYNC,
-		       ((pModeParam->vertical_sync_height <<
-			 CRT_VERTICAL_SYNC_HEIGHT_SHIFT) &
-			CRT_VERTICAL_SYNC_HEIGHT_MASK) |
-		       ((pModeParam->vertical_sync_start - 1) &
-			CRT_VERTICAL_SYNC_START_MASK));
+		poke32(CRT_HORIZONTAL_TOTAL, tmp);
+
+		tmp = (pModeParam->horizontal_sync_width <<
+		       CRT_HORIZONTAL_SYNC_WIDTH_SHIFT) &
+		     CRT_HORIZONTAL_SYNC_WIDTH_MASK;
+		tmp |= (pModeParam->horizontal_sync_start - 1) &
+		      CRT_HORIZONTAL_SYNC_START_MASK;
+
+		poke32(CRT_HORIZONTAL_SYNC, tmp);
+
+		tmp = ((pModeParam->vertical_total - 1) <<
+		       CRT_VERTICAL_TOTAL_TOTAL_SHIFT) &
+		     CRT_VERTICAL_TOTAL_TOTAL_MASK;
+		tmp |= (pModeParam->vertical_display_end - 1) &
+		      CRT_VERTICAL_TOTAL_DISPLAY_END_MASK;
+
+		poke32(CRT_VERTICAL_TOTAL, tmp);
+
+		tmp = ((pModeParam->vertical_sync_height <<
+		       CRT_VERTICAL_SYNC_HEIGHT_SHIFT)) &
+		     CRT_VERTICAL_SYNC_HEIGHT_MASK;
+		tmp |= (pModeParam->vertical_sync_start - 1) &
+		      CRT_VERTICAL_SYNC_START_MASK;
+
+		poke32(CRT_VERTICAL_SYNC, tmp);
 
 		tmp = DISPLAY_CTRL_TIMING | DISPLAY_CTRL_PLANE;
 		if (pModeParam->vertical_sync_polarity)
-- 
2.11.0