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drm/exynos: add mout_hdmi clock in hdmi driver to change parent

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HDMI driver needs to configure the mout_hdmi mux clock to change
the parent between sclk_hdmiphy and sclk_pixel.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Rahul Sharma 2013-06-11 12:24:03 +05:30 committed by Inki Dae
parent 0bfb1f8bcb
commit 59956d35a8
1 changed files with 10 additions and 4 deletions
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14
drivers/gpu/drm/exynos/exynos_hdmi.c
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@ -83,6 +83,7 @@ struct hdmi_resources {
struct clk *sclk_pixel;
struct clk *sclk_hdmiphy;
struct clk *hdmiphy;
struct clk *mout_hdmi;
struct regulator_bulk_data *regul_bulk;
int regul_count;
};
@ -1112,7 +1113,7 @@ static void hdmi_v13_mode_apply(struct hdmi_context *hdata)
}
clk_disable_unprepare(hdata->res.sclk_hdmi);
clk_set_parent(hdata->res.sclk_hdmi, hdata->res.sclk_hdmiphy);
clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_hdmiphy);
clk_prepare_enable(hdata->res.sclk_hdmi);
/* enable HDMI and timing generator */
@ -1279,7 +1280,7 @@ static void hdmi_v14_mode_apply(struct hdmi_context *hdata)
}
clk_disable_unprepare(hdata->res.sclk_hdmi);
clk_set_parent(hdata->res.sclk_hdmi, hdata->res.sclk_hdmiphy);
clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_hdmiphy);
clk_prepare_enable(hdata->res.sclk_hdmi);
/* enable HDMI and timing generator */
@ -1305,7 +1306,7 @@ static void hdmiphy_conf_reset(struct hdmi_context *hdata)
u32 reg;
clk_disable_unprepare(hdata->res.sclk_hdmi);
clk_set_parent(hdata->res.sclk_hdmi, hdata->res.sclk_pixel);
clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_pixel);
clk_prepare_enable(hdata->res.sclk_hdmi);
/* operation mode */
@ -1812,8 +1813,13 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
DRM_ERROR("failed to get clock 'hdmiphy'\n");
goto fail;
}
res->mout_hdmi = devm_clk_get(dev, "mout_hdmi");
if (IS_ERR(res->mout_hdmi)) {
DRM_ERROR("failed to get clock 'mout_hdmi'\n");
goto fail;
}
clk_set_parent(res->sclk_hdmi, res->sclk_pixel);
clk_set_parent(res->mout_hdmi, res->sclk_pixel);
res->regul_bulk = devm_kzalloc(dev, ARRAY_SIZE(supply) *
sizeof(res->regul_bulk[0]), GFP_KERNEL);