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staging:sm750fb: Code readability is improved. 

New variables are added to make the code more readable.

Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arushi Singhal 2017-03-20 19:36:56 +05:30 committed by Greg Kroah-Hartman
parent 50d94eac3e
commit 7369e062fd
1 changed files with 29 additions and 24 deletions
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53
drivers/staging/sm750fb/ddk750_mode.c
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@ -81,33 +81,38 @@ static int programModeRegisters(mode_parameter_t *pModeParam, struct pll_value *
if (pll->clockType == SECONDARY_PLL) { if (pll->clockType == SECONDARY_PLL) {
/* programe secondary pixel clock */ /* programe secondary pixel clock */
poke32(CRT_PLL_CTRL, sm750_format_pll_reg(pll)); 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, tmp = ((pModeParam->horizontal_total - 1) <<
((pModeParam->horizontal_sync_width << CRT_HORIZONTAL_TOTAL_TOTAL_SHIFT) &
CRT_HORIZONTAL_SYNC_WIDTH_SHIFT) & CRT_HORIZONTAL_TOTAL_TOTAL_MASK;
CRT_HORIZONTAL_SYNC_WIDTH_MASK) | tmp |= (pModeParam->horizontal_display_end - 1) &
((pModeParam->horizontal_sync_start - 1) & CRT_HORIZONTAL_TOTAL_DISPLAY_END_MASK;
CRT_HORIZONTAL_SYNC_START_MASK));
poke32(CRT_VERTICAL_TOTAL, poke32(CRT_HORIZONTAL_TOTAL, tmp);
(((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));
poke32(CRT_VERTICAL_SYNC, tmp = (pModeParam->horizontal_sync_width <<
((pModeParam->vertical_sync_height << CRT_HORIZONTAL_SYNC_WIDTH_SHIFT) &
CRT_VERTICAL_SYNC_HEIGHT_SHIFT) & CRT_HORIZONTAL_SYNC_WIDTH_MASK;
CRT_VERTICAL_SYNC_HEIGHT_MASK) | tmp |= (pModeParam->horizontal_sync_start - 1) &
((pModeParam->vertical_sync_start - 1) & CRT_HORIZONTAL_SYNC_START_MASK;
CRT_VERTICAL_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; tmp = DISPLAY_CTRL_TIMING | DISPLAY_CTRL_PLANE;
if (pModeParam->vertical_sync_polarity) if (pModeParam->vertical_sync_polarity)