drm/bridge: samsung-dsim: increase timeout value for PLL_STABLE

Exynos7870's DSIM requires more time to stabilize its PLL. The current
timeout value, 1000, doesn't suffice. Increase the value to 3000, which
is just about enough as observed experimentally.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index 456d961abc057ec60b4bed18f739a86290499060..2e422f3ec1033d0f2a6cc0c97358f03fcdc6839d 100644 (file)
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -755,7 +755,7 @@ static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi,
 
        samsung_dsim_write(dsi, DSIM_PLLCTRL_REG, reg);
 
-       timeout = 1000;
+       timeout = 3000;
        do {
                if (timeout-- == 0) {
                        dev_err(dsi->dev, "PLL failed to stabilize\n");