The patch titled
sm501fb: control panel pin usage with platform data flags
has been removed from the -mm tree. Its filename was
sm501fb-control-panel-pin-usage-with-platform-data-flags.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: sm501fb: control panel pin usage with platform data flags
From: Magnus Damm <[EMAIL PROTECTED]>
This patch makes it possible to control panel pins usage with flags passed
from the platform data. Without this patch the sm501fb driver always controls
the VBIASEN and FPEN pins. The polarity and use of these pins are very
platform specific, so this patch introduces the flags
SM501FB_FLAG_PANEL_USE_VBIASEN and SM501FB_FLAG_PANEL_USE_FPEN which enable
the use of these pins.
This patch is needed to support the a Sharp LQ104V1DG21 lcd panel on SuperH
platforms such as R2D-1 and R2D-PLUS boards. Letting the sm501fb driver
control the FPEN and VBIASEN pins like today just results in lcd panel
flicker.
Signed-off-by: Magnus Damm <[EMAIL PROTECTED]>
Cc: "Antonino A. Daplas" <[EMAIL PROTECTED]>
Cc: Paul Mundt <[EMAIL PROTECTED]>
Cc: Ben Dooks <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
drivers/video/sm501fb.c | 41 +++++++++++++++++++++++---------------
include/linux/sm501.h | 2 +
2 files changed, 27 insertions(+), 16 deletions(-)
diff -puN
drivers/video/sm501fb.c~sm501fb-control-panel-pin-usage-with-platform-data-flags
drivers/video/sm501fb.c
---
a/drivers/video/sm501fb.c~sm501fb-control-panel-pin-usage-with-platform-data-flags
+++ a/drivers/video/sm501fb.c
@@ -641,6 +641,7 @@ static void sm501fb_panel_power(struct s
{
unsigned long control;
void __iomem *ctrl_reg = fbi->regs + SM501_DC_PANEL_CONTROL;
+ struct sm501_platdata_fbsub *pd = fbi->pdata->fb_pnl;
control = readl(ctrl_reg);
@@ -657,26 +658,34 @@ static void sm501fb_panel_power(struct s
sm501fb_sync_regs(fbi);
mdelay(10);
- control |= SM501_DC_PANEL_CONTROL_BIAS; /* VBIASEN */
- writel(control, ctrl_reg);
- sm501fb_sync_regs(fbi);
- mdelay(10);
-
- control |= SM501_DC_PANEL_CONTROL_FPEN;
- writel(control, ctrl_reg);
+ if (pd->flags & SM501FB_FLAG_PANEL_USE_VBIASEN) {
+ control |= SM501_DC_PANEL_CONTROL_BIAS; /* VBIASEN */
+ writel(control, ctrl_reg);
+ sm501fb_sync_regs(fbi);
+ mdelay(10);
+ }
+ if (pd->flags & SM501FB_FLAG_PANEL_USE_FPEN) {
+ control |= SM501_DC_PANEL_CONTROL_FPEN;
+ writel(control, ctrl_reg);
+ sm501fb_sync_regs(fbi);
+ mdelay(10);
+ }
} else if (!to && (control & SM501_DC_PANEL_CONTROL_VDD) != 0) {
/* disable panel power */
+ if (pd->flags & SM501FB_FLAG_PANEL_USE_FPEN) {
+ control &= ~SM501_DC_PANEL_CONTROL_FPEN;
+ writel(control, ctrl_reg);
+ sm501fb_sync_regs(fbi);
+ mdelay(10);
+ }
- control &= ~SM501_DC_PANEL_CONTROL_FPEN;
- writel(control, ctrl_reg);
- sm501fb_sync_regs(fbi);
- mdelay(10);
-
- control &= ~SM501_DC_PANEL_CONTROL_BIAS;
- writel(control, ctrl_reg);
- sm501fb_sync_regs(fbi);
- mdelay(10);
+ if (pd->flags & SM501FB_FLAG_PANEL_USE_VBIASEN) {
+ control &= ~SM501_DC_PANEL_CONTROL_BIAS;
+ writel(control, ctrl_reg);
+ sm501fb_sync_regs(fbi);
+ mdelay(10);
+ }
control &= ~SM501_DC_PANEL_CONTROL_DATA;
writel(control, ctrl_reg);
diff -puN
include/linux/sm501.h~sm501fb-control-panel-pin-usage-with-platform-data-flags
include/linux/sm501.h
---
a/include/linux/sm501.h~sm501fb-control-panel-pin-usage-with-platform-data-flags
+++ a/include/linux/sm501.h
@@ -70,6 +70,8 @@ extern unsigned long sm501_gpio_get(stru
#define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1)
#define SM501FB_FLAG_USE_HWCURSOR (1<<2)
#define SM501FB_FLAG_USE_HWACCEL (1<<3)
+#define SM501FB_FLAG_PANEL_USE_FPEN (1<<4)
+#define SM501FB_FLAG_PANEL_USE_VBIASEN (1<<5)
struct sm501_platdata_fbsub {
struct fb_videomode *def_mode;
_
Patches currently in -mm which might be from [EMAIL PROTECTED] are
origin.patch
git-sh.patch
-
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