staging: topaz: reduce polling frequency in register read

Part of video hw driver update from UMG.

Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

diff --git a/drivers/staging/mrst/imgv/pnw_topazinit.c b/drivers/staging/mrst/imgv/pnw_topazinit.c
index 20ad0c2..a6fdde7 100644 (file)
--- a/drivers/staging/mrst/imgv/pnw_topazinit.c
+++ b/drivers/staging/mrst/imgv/pnw_topazinit.c
@@ -173,7 +173,7 @@ int pnw_topaz_wait_for_register(struct drm_psb_private *dev_priv,
                                uint32_t addr, uint32_t value, uint32_t mask)
 {
        uint32_t tmp;
-       uint32_t count = 1000000;
+       uint32_t count = 10000;
 
        /* # poll topaz register for certain times */
        while (count) {
@@ -184,7 +184,7 @@ int pnw_topaz_wait_for_register(struct drm_psb_private *dev_priv,
                        return 0;
 
                /* #.# delay and loop */
-               PSB_UDELAY(1);
+               PSB_UDELAY(100);/* derive from reference driver */
                --count;
        }