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 456d961..2e422f3 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");