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drm/stm: dw_mipi_dsi-stm: add sleep power management

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Implements system sleep power management ops.

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
Acked-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1553156033-13792-1-git-send-email-yannick.fertre@st.com
This commit is contained in:
Yannick Fertré 2019-03-21 09:13:53 +01:00 committed by Benjamin Gaignard
parent f84d3d37b7
commit 1861a1ffbc
1 changed files with 28 additions and 0 deletions
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28
drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
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@ -356,12 +356,40 @@ static int dw_mipi_dsi_stm_remove(struct platform_device *pdev)
return 0;
}
static int __maybe_unused dw_mipi_dsi_stm_suspend(struct device *dev)
{
struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
DRM_DEBUG_DRIVER("\n");
clk_disable_unprepare(dsi->pllref_clk);
return 0;
}
static int __maybe_unused dw_mipi_dsi_stm_resume(struct device *dev)
{
struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
DRM_DEBUG_DRIVER("\n");
clk_prepare_enable(dsi->pllref_clk);
return 0;
}
static const struct dev_pm_ops dw_mipi_dsi_stm_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(dw_mipi_dsi_stm_suspend,
dw_mipi_dsi_stm_resume)
};
static struct platform_driver dw_mipi_dsi_stm_driver = {
.probe = dw_mipi_dsi_stm_probe,
.remove = dw_mipi_dsi_stm_remove,
.driver = {
.of_match_table = dw_mipi_dsi_stm_dt_ids,
.name = "stm32-display-dsi",
.pm = &dw_mipi_dsi_stm_pm_ops,
},
};