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authorPeter Huewe <peterhuewe@gmx.de>2013-02-05 00:29:45 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-02-05 11:16:21 -0800
commit1504ecbeecfb206179e39d66d7f4d4af542ec45c (patch)
tree3208f3b13ea049e290b569a5e6d0e7e434aa045e /drivers/staging/xgifb
parent0141bb2ed95d87cbcc53ebd282b943d061881fce (diff)
staging/xgifb: Don't write the same values x times
With the previous patch 'Move duplicated code for dram to helper function' it becomes evident that the code is performing the same thing 4 or 8 times in a row without changing arguments to the function and thus writing the same values over and over again. It was tested that these repeats are unnecessary. -> we can safely remove them. Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/xgifb')
-rw-r--r--drivers/staging/xgifb/vb_init.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/staging/xgifb/vb_init.c b/drivers/staging/xgifb/vb_init.c
index 25fc7bcd47c..1c6e0f3ada1 100644
--- a/drivers/staging/xgifb/vb_init.c
+++ b/drivers/staging/xgifb/vb_init.c
@@ -439,25 +439,18 @@ static void XGINew_SetDRAMDefaultRegister340(
xgifb_reg_set(P3d4, 0x69, pVBInfo->CR40[6][pVBInfo->ram_type]);
xgifb_reg_set(P3d4, 0x6A, pVBInfo->CR40[7][pVBInfo->ram_type]);
- for (i = 0; i < 4; i++) {
- /* CR6B DQS fine tune delay */
- temp = (pVBInfo->ram_type <= 2) ? 0xaa : 0x00;
- XGI_SetDRAM_Helper(P3d4, temp, 0, 0x6B, 2, 0xF0, 0x10);
- }
+ /* CR6B DQS fine tune delay */
+ temp = (pVBInfo->ram_type <= 2) ? 0xaa : 0x00;
+ XGI_SetDRAM_Helper(P3d4, temp, 0, 0x6B, 2, 0xF0, 0x10);
- for (i = 0; i < 4; i++) {
- /* CR6E DQM fine tune delay */
- XGI_SetDRAM_Helper(P3d4, 0, 0, 0x6E, 2, 0xF0, 0x10);
- }
+ /* CR6E DQM fine tune delay */
+ XGI_SetDRAM_Helper(P3d4, 0, 0, 0x6E, 2, 0xF0, 0x10);
temp3 = 0;
for (k = 0; k < 4; k++) {
/* CR6E_D[1:0] select channel */
xgifb_reg_and_or(P3d4, 0x6E, 0xFC, temp3);
- for (i = 0; i < 8; i++) {
- /* CR6F DQ fine tune delay */
- XGI_SetDRAM_Helper(P3d4, 0, 0, 0x6F, 0, 0xF8, 0x08);
- }
+ XGI_SetDRAM_Helper(P3d4, 0, 0, 0x6F, 0, 0xF8, 0x08);
temp3 += 0x01;
}