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authorYoungJun Cho <yj44.cho@samsung.com>2014-08-14 11:22:36 +0900
committerInki Dae <daeinki@gmail.com>2014-09-20 00:56:08 +0900
commit8525b5ec90a58b3e56709ffa1667d6593dbe24c3 (patch)
treed5f2339a1f18e4ed9d012b409a7a5f97d2f0d725
parent8337486a8fda53e5f46b3cb2b4eb3272608348cb (diff)
drm/exynos: dsi: fix exynos_dsi_set_pll() wrong return value
The type of this function is unsigned long, and it is expected to return proper fout value or zero if something is wrong. So this patch fixes wrong return value for error cases. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_dsi.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 442aa2d00132..d3393098f424 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -421,7 +421,7 @@ static unsigned long exynos_dsi_set_pll(struct exynos_dsi *dsi,
if (!fout) {
dev_err(dsi->dev,
"failed to find PLL PMS for requested frequency\n");
- return -EFAULT;
+ return 0;
}
dev_dbg(dsi->dev, "PLL freq %lu, (p %d, m %d, s %d)\n", fout, p, m, s);
@@ -453,7 +453,7 @@ static unsigned long exynos_dsi_set_pll(struct exynos_dsi *dsi,
do {
if (timeout-- == 0) {
dev_err(dsi->dev, "PLL failed to stabilize\n");
- return -EFAULT;
+ return 0;
}
reg = readl(dsi->reg_base + DSIM_STATUS_REG);
} while ((reg & DSIM_PLL_STABLE) == 0);