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| author | Yannick Fertré <yannick.fertre@st.com> | 2019-03-21 09:13:53 +0100 |
|---|---|---|
| committer | Benjamin Gaignard <benjamin.gaignard@linaro.org> | 2019-04-01 11:00:05 +0200 |
| commit | 1861a1ffbc08ad53e1f07af8d754514298c22eb4 (patch) | |
| tree | e531d4d504fedc3408012ba220e1241ca74915f7 | |
| parent | f84d3d37b7fbb022e33b79d54374466f6fbc7186 (diff) | |
| download | linux-1861a1ffbc08ad53e1f07af8d754514298c22eb4.tar.gz | |
drm/stm: dw_mipi_dsi-stm: add sleep power management
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
| -rw-r--r-- | drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c index a672b59a2226..1bef73e8c8fe 100644 --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c @@ -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, }, }; |