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phy: exynos-dp-video: Kill exynos_dp_video_phy_pwr_isol function

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If IS_ERR(state->regs) the .probe fails.
So IS_ERR(state->regs) test in exynos_dp_video_phy_pwr_isol() is not necessary.
exynos_dp_video_phy_pwr_isol() simply does a regmap_update_bits() call now,
just call regmap_update_bits() instead and return proper return value.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Axel Lin 2015-02-27 12:34:10 +08:00 committed by Kishon Vijay Abraham I
parent af69decc7c
commit 0f9722e37f
1 changed files with 4 additions and 20 deletions
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24
drivers/phy/phy-exynos-dp-video.c
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@ -30,28 +30,13 @@ struct exynos_dp_video_phy {
const struct exynos_dp_video_phy_drvdata *drvdata;
};
static void exynos_dp_video_phy_pwr_isol(struct exynos_dp_video_phy *state,
unsigned int on)
{
unsigned int val;
if (IS_ERR(state->regs))
return;
val = on ? 0 : EXYNOS5_PHY_ENABLE;
regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
EXYNOS5_PHY_ENABLE, val);
}
static int exynos_dp_video_phy_power_on(struct phy *phy)
{
struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
/* Disable power isolation on DP-PHY */
exynos_dp_video_phy_pwr_isol(state, 0);
return 0;
return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
EXYNOS5_PHY_ENABLE, EXYNOS5_PHY_ENABLE);
}
static int exynos_dp_video_phy_power_off(struct phy *phy)
@ -59,9 +44,8 @@ static int exynos_dp_video_phy_power_off(struct phy *phy)
struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
/* Enable power isolation on DP-PHY */
exynos_dp_video_phy_pwr_isol(state, 1);
return 0;
return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
EXYNOS5_PHY_ENABLE, 0);
}
static struct phy_ops exynos_dp_video_phy_ops = {