* [PATCH] staging: sm750fb: Improved coding style
@ 2017-03-12 2:34 Arushi Singhal
2017-03-12 4:46 ` Greg Kroah-Hartman
2017-03-12 21:32 ` kbuild test robot
0 siblings, 2 replies; 3+ messages in thread
From: Arushi Singhal @ 2017-03-12 2:34 UTC (permalink / raw)
To: sudipm.mukherjee
Cc: Teddy Wang, Greg Kroah-Hartman, linux-fbdev, devel, linux-kernel,
outreachy-kernel
New variables are added to make the code more readable.
Also fixed the checkpatch issue: "Alignment should match open
parenthesis".
Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
---
drivers/staging/sm750fb/ddk750_mode.c | 112 ++++++++++++++++------------------
1 file changed, 53 insertions(+), 59 deletions(-)
diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
index 45af806c8d55..7fd3c3f20c01 100644
--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -28,9 +28,9 @@ static unsigned long displayControlAdjust_SM750LE(mode_parameter_t *pModeParam,
poke32(CRT_AUTO_CENTERING_TL, 0);
poke32(CRT_AUTO_CENTERING_BR,
- (((y - 1) << CRT_AUTO_CENTERING_BR_BOTTOM_SHIFT) &
- CRT_AUTO_CENTERING_BR_BOTTOM_MASK) |
- ((x - 1) & CRT_AUTO_CENTERING_BR_RIGHT_MASK));
+ (((y - 1) << CRT_AUTO_CENTERING_BR_BOTTOM_SHIFT) &
+ CRT_AUTO_CENTERING_BR_BOTTOM_MASK) |
+ ((x - 1) & CRT_AUTO_CENTERING_BR_RIGHT_MASK));
/*
* Assume common fields in dispControl have been properly set before
@@ -72,43 +72,39 @@ static unsigned long displayControlAdjust_SM750LE(mode_parameter_t *pModeParam,
}
/* only timing related registers will be programed */
-static int programModeRegisters(mode_parameter_t *pModeParam,
- struct pll_value *pll)
+static int programModeRegisters(mode_parameter_t *pModeParam, struct pll_value *pll)
{
int ret = 0;
int cnt = 0;
unsigned int tmp, reg;
+ unsigned int cht = CRT_HORIZONTAL_TOTAL;
+ unsigned int cvt = CRT_VERTICAL_TOTAL;
+ unsigned int chs = CRT_HORIZONTAL_SYNC;
+ unsigned int cvs = CRT_VERTICAL_SYNC;
+ unsigned int chssm = CRT_HORIZONTAL_SYNC_START_MASK;
+ unsigned int cvssm = CRT_VERTICAL_SYNC_START_MASK;
+ unsigned int chtdem = CRT_HORIZONTAL_TOTAL_DISPLAY_END_MASK;
+ unsigned int cvtdem = CRT_VERTICAL_TOTAL_DISPLAY_END_MASK;
+ unsigned int chttm = CRT_HORIZONTAL_TOTAL_TOTAL_MASK;
+ unsigned int cvttm = CRT_VERTICAL_TOTAL_TOTAL_MASK;
+ unsigned int chswm = CRT_HORIZONTAL_SYNC_WIDTH_MASK;
+ unsigned int cvshm = CRT_VERTICAL_SYNC_HEIGHT_MASK;
+ unsigned int phde = pModeParam->horizontal_display_end - 1;
+ unsigned int pvde = pModeParam->vertical_display_end - 1;
+ unsigned int phss = pModeParam->horizontal_sync_start - 1;
+ unsigned int pvss = pModeParam->vertical_sync_start - 1;
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));
-
- 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(cht, (((pModeParam->horizontal_total - 1) << CRT_HORIZONTAL_TOTAL_TOTAL_SHIFT) & chttm) | (phde & chtdem));
+
+ poke32(chs, ((pModeParam->horizontal_sync_width << CRT_HORIZONTAL_SYNC_WIDTH_SHIFT) & chswm) | (phss & chssm));
+
+ poke32(cvt, (((pModeParam->vertical_total - 1) << CRT_VERTICAL_TOTAL_TOTAL_SHIFT) & cvttm) | (pvde & cvtdem));
+
+ poke32(cvs, ((pModeParam->vertical_sync_height << CRT_VERTICAL_SYNC_HEIGHT_SHIFT) & cvshm) | (pvss & cvssm));
tmp = DISPLAY_CTRL_TIMING | DISPLAY_CTRL_PLANE;
if (pModeParam->vertical_sync_polarity)
@@ -129,36 +125,34 @@ static int programModeRegisters(mode_parameter_t *pModeParam,
} else if (pll->clockType == PRIMARY_PLL) {
unsigned int reserved;
+ unsigned int pht = PANEL_HORIZONTAL_TOTAL;
+ unsigned int pvt = PANEL_VERTICAL_TOTAL;
+ unsigned int phs = PANEL_HORIZONTAL_SYNC;
+ unsigned int pvs = PANEL_VERTICAL_SYNC;
+ unsigned int phssm = PANEL_HORIZONTAL_SYNC_START_MASK;
+ unsigned int phtdem = PANEL_HORIZONTAL_TOTAL_DISPLAY_END_MASK;
+ unsigned int pvtdem = PANEL_VERTICAL_TOTAL_DISPLAY_END_MASK;
+ unsigned int phttm = PANEL_HORIZONTAL_TOTAL_TOTAL_MASK;
+ unsigned int pvttm = PANEL_VERTICAL_TOTAL_TOTAL_MASK;
+ unsigned int phswm = PANEL_HORIZONTAL_SYNC_WIDTH_MASK;
+ unsigned int pvshm = PANEL_VERTICAL_SYNC_HEIGHT_MASK;
+ unsigned int phde = pModeParam->horizontal_display_end - 1;
+ unsigned int pvde = pModeParam->vertical_display_end - 1;
+ unsigned int phss = pModeParam->horizontal_sync_start - 1;
+ unsigned int pvss = pModeParam->vertical_sync_start - 1;
+
poke32(PANEL_PLL_CTRL, sm750_format_pll_reg(pll));
- reg = ((pModeParam->horizontal_total - 1) <<
- PANEL_HORIZONTAL_TOTAL_TOTAL_SHIFT) &
- PANEL_HORIZONTAL_TOTAL_TOTAL_MASK;
- reg |= ((pModeParam->horizontal_display_end - 1) &
- PANEL_HORIZONTAL_TOTAL_DISPLAY_END_MASK);
- poke32(PANEL_HORIZONTAL_TOTAL, reg);
-
- poke32(PANEL_HORIZONTAL_SYNC,
- ((pModeParam->horizontal_sync_width <<
- PANEL_HORIZONTAL_SYNC_WIDTH_SHIFT) &
- PANEL_HORIZONTAL_SYNC_WIDTH_MASK) |
- ((pModeParam->horizontal_sync_start - 1) &
- PANEL_HORIZONTAL_SYNC_START_MASK));
-
- poke32(PANEL_VERTICAL_TOTAL,
- (((pModeParam->vertical_total - 1) <<
- PANEL_VERTICAL_TOTAL_TOTAL_SHIFT) &
- PANEL_VERTICAL_TOTAL_TOTAL_MASK) |
- ((pModeParam->vertical_display_end - 1) &
- PANEL_VERTICAL_TOTAL_DISPLAY_END_MASK));
-
- poke32(PANEL_VERTICAL_SYNC,
- ((pModeParam->vertical_sync_height <<
- PANEL_VERTICAL_SYNC_HEIGHT_SHIFT) &
- PANEL_VERTICAL_SYNC_HEIGHT_MASK) |
- ((pModeParam->vertical_sync_start - 1) &
- PANEL_VERTICAL_SYNC_START_MASK));
+ reg = ((pModeParam->horizontal_total - 1) << PANEL_HORIZONTAL_TOTAL_TOTAL_SHIFT) & phttm;
+ reg |= (phde & phtdem);
+ poke32(pht, reg);
+
+ poke32(phs, ((pModeParam->horizontal_sync_width << PANEL_HORIZONTAL_SYNC_WIDTH_SHIFT) & phswm) | (phss & phssm));
+
+ poke32(pvt, (((pModeParam->vertical_total - 1) << PANEL_VERTICAL_TOTAL_TOTAL_SHIFT) & pvttm) | (pvde & pvtdem));
+
+ poke32(pvs, ((pModeParam->vertical_sync_height << PANEL_VERTICAL_SYNC_HEIGHT_SHIFT) & pvshm) | (pvss & pvssm));
tmp = DISPLAY_CTRL_TIMING | DISPLAY_CTRL_PLANE;
if (pModeParam->vertical_sync_polarity)
--
2.11.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] staging: sm750fb: Improved coding style
2017-03-12 2:34 [PATCH] staging: sm750fb: Improved coding style Arushi Singhal
@ 2017-03-12 4:46 ` Greg Kroah-Hartman
2017-03-12 21:32 ` kbuild test robot
1 sibling, 0 replies; 3+ messages in thread
From: Greg Kroah-Hartman @ 2017-03-12 4:46 UTC (permalink / raw)
To: Arushi Singhal
Cc: sudipm.mukherjee, devel, linux-fbdev, Teddy Wang, linux-kernel,
outreachy-kernel
On Sun, Mar 12, 2017 at 08:04:02AM +0530, Arushi Singhal wrote:
> New variables are added to make the code more readable.
> Also fixed the checkpatch issue: "Alignment should match open
> parenthesis".
When you have to say "also" in a commit message, that is a huge red-flag
that you need to break a patch up into different parts, as you are doing
multiple things. Please do so here.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] staging: sm750fb: Improved coding style
2017-03-12 2:34 [PATCH] staging: sm750fb: Improved coding style Arushi Singhal
2017-03-12 4:46 ` Greg Kroah-Hartman
@ 2017-03-12 21:32 ` kbuild test robot
1 sibling, 0 replies; 3+ messages in thread
From: kbuild test robot @ 2017-03-12 21:32 UTC (permalink / raw)
To: Arushi Singhal
Cc: kbuild-all, sudipm.mukherjee, devel, linux-fbdev, Teddy Wang,
Greg Kroah-Hartman, linux-kernel, outreachy-kernel
[-- Attachment #1: Type: text/plain, Size: 1875 bytes --]
Hi Arushi,
[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.11-rc1 next-20170310]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Arushi-Singhal/staging-sm750fb-Improved-coding-style/20170313-044528
config: x86_64-randconfig-x013-201711 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/staging/sm750fb/ddk750_mode.c: In function 'programModeRegisters':
>> drivers/staging/sm750fb/ddk750_mode.c:155:106: error: 'pvssm' undeclared (first use in this function)
poke32(pvs, ((pModeParam->vertical_sync_height << PANEL_VERTICAL_SYNC_HEIGHT_SHIFT) & pvshm) | (pvss & pvssm));
^~~~~
drivers/staging/sm750fb/ddk750_mode.c:155:106: note: each undeclared identifier is reported only once for each function it appears in
vim +/pvssm +155 drivers/staging/sm750fb/ddk750_mode.c
149 poke32(pht, reg);
150
151 poke32(phs, ((pModeParam->horizontal_sync_width << PANEL_HORIZONTAL_SYNC_WIDTH_SHIFT) & phswm) | (phss & phssm));
152
153 poke32(pvt, (((pModeParam->vertical_total - 1) << PANEL_VERTICAL_TOTAL_TOTAL_SHIFT) & pvttm) | (pvde & pvtdem));
154
> 155 poke32(pvs, ((pModeParam->vertical_sync_height << PANEL_VERTICAL_SYNC_HEIGHT_SHIFT) & pvshm) | (pvss & pvssm));
156
157 tmp = DISPLAY_CTRL_TIMING | DISPLAY_CTRL_PLANE;
158 if (pModeParam->vertical_sync_polarity)
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 27281 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-03-12 4:46 ` Greg Kroah-Hartman
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