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drm/exynos: dsi: fix exynos_dsi_set_pll() wrong return value

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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>
This commit is contained in:
YoungJun Cho 2014-08-14 11:22:36 +09:00 committed by Inki Dae
parent 8337486a8f
commit 8525b5ec90
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/exynos/exynos_drm_dsi.c
View file

@ -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);