aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorTomi Valkeinen <tomi.valkeinen@nokia.com>2010-01-07 14:19:48 +0200
committerTomi Valkeinen <tomi.valkeinen@nokia.com>2010-01-11 14:45:26 +0200
commit24be78b32f0a6e14aead3eac89d768a361b091b3 (patch)
tree38f1f736bf0faa638d2fe1f45a356b802f021ca4 /drivers
parentf3a82d11d478a9eb5ff0cfa83796f0ba8149d841 (diff)
OMAP: DSS2: Make check-delay-loops consistent
Loops checking for certain condition were rather inconsistent. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> Reported-by: Juha Leppanen <juha_motorsportcom@luukku.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/omap2/dss/dsi.c14
-rw-r--r--drivers/video/omap2/dss/dss.c6
2 files changed, 10 insertions, 10 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index e32a53c0889..6122178f5f8 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -828,12 +828,12 @@ static int dsi_pll_power(enum dsi_pll_power_state state)
/* PLL_PWR_STATUS */
while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) {
- udelay(1);
- if (t++ > 1000) {
+ if (++t > 1000) {
DSSERR("Failed to set DSI PLL power mode to %d\n",
state);
return -ENODEV;
}
+ udelay(1);
}
return 0;
@@ -1441,12 +1441,12 @@ static int dsi_complexio_power(enum dsi_complexio_power_state state)
/* PWR_STATUS */
while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) {
- udelay(1);
- if (t++ > 1000) {
+ if (++t > 1000) {
DSSERR("failed to set complexio power state to "
"%d\n", state);
return -ENODEV;
}
+ udelay(1);
}
return 0;
@@ -1646,10 +1646,10 @@ static void dsi_complexio_uninit(void)
static int _dsi_wait_reset(void)
{
- int i = 0;
+ int t = 0;
while (REG_GET(DSI_SYSSTATUS, 0, 0) == 0) {
- if (i++ > 5) {
+ if (++t > 5) {
DSSERR("soft reset failed\n");
return -ENODEV;
}
@@ -2706,7 +2706,6 @@ static int dsi_update_screen_l4(struct omap_dss_device *dssdev,
/* using fifo not empty */
/* TX_FIFO_NOT_EMPTY */
while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) {
- udelay(1);
fifo_stalls++;
if (fifo_stalls > 0xfffff) {
DSSERR("fifo stalls overflow, pixels left %d\n",
@@ -2714,6 +2713,7 @@ static int dsi_update_screen_l4(struct omap_dss_device *dssdev,
dsi_if_enable(0);
return -EIO;
}
+ udelay(1);
}
#elif 1
/* using fifo emptiness */
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 9b05ee65a15..0a26b7d84d4 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -467,14 +467,14 @@ static irqreturn_t dss_irq_handler_omap3(int irq, void *arg)
static int _omap_dss_wait_reset(void)
{
- unsigned timeout = 1000;
+ int t = 0;
while (REG_GET(DSS_SYSSTATUS, 0, 0) == 0) {
- udelay(1);
- if (!--timeout) {
+ if (++t > 1000) {
DSSERR("soft reset failed\n");
return -ENODEV;
}
+ udelay(1);
}
return 0;