diff options
| author | Avinash A <Avinash.a@stericsson.com> | 2011-09-26 19:47:27 +0530 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@linaro.org> | 2012-03-19 08:59:36 +0100 |
| commit | bbbf3dd941c299e15fc97b0252677fc63356dca6 (patch) | |
| tree | cf280bfd534758bbdfa1b9248d613e596d7fdd81 /drivers/input | |
| parent | b1452519c321c5d526709070d8ff63db4a069c87 (diff) | |
input: ts-cypress proper timing for each mode change
The time interval for the cypress controller
in deep sleep state after the last communication
should be Tdelay > 2*Trefresh. Trefresh is 14.3ms
ST-Ericsson ID: 359690, 357430
ST-Ericsson Linux next: NA
ST-Ericsson FOSS-OUT ID: Trivial
Change-Id: I86aedb29157ea8a2e3d685747b02f8c596945cdf
Signed-off-by: Avinash A <Avinash.a@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31993
Reviewed-by: Avinash A <avinash.a@stericsson.com>
Tested-by: Avinash A <avinash.a@stericsson.com>
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Diffstat (limited to 'drivers/input')
| -rwxr-xr-x | drivers/input/touchscreen/cyttsp_core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c index 076417439ab..7a2aa109034 100755 --- a/drivers/input/touchscreen/cyttsp_core.c +++ b/drivers/input/touchscreen/cyttsp_core.c @@ -150,6 +150,7 @@ #define CY_DELAY_DFLT 20 /* ms */ #define CY_DELAY_MAX (500/CY_DELAY_DFLT) /* half second */ #define CY_DELAY_SYSINFO 20 /* ms */ +#define CY_MODE_CHANGE_DELAY 30 /* ms */ #define CY_DELAY_BL 300 #define CY_DELAY_DNLOAD 100 /* ms */ #define CY_HNDSHK_BIT 0x80 @@ -1698,6 +1699,7 @@ static int cyttsp_suspend(struct cyttsp *ts) CY_REG_BASE, sizeof(sleep_mode), &sleep_mode); if (!(retval < 0)) ts->platform_data->power_state = CY_SLEEP_STATE; + msleep(CY_MODE_CHANGE_DELAY); } DBG(printk(KERN_INFO"%s: Sleep Power state is %s\n", __func__, (ts->platform_data->power_state == CY_ACTIVE_STATE) ? |