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Subject[PATCH v1 1/2] drm/bridge/synopsys: dsi: add power on/off optional phy ops
Date
Add power on & off optional physical operation functions, helpful to
program specific registers of the DSI physical part.

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
---
drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 8 ++++++++
include/drm/bridge/dw_mipi_dsi.h | 2 ++
2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index e915ae8..5bb676f 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -775,6 +775,10 @@ static void dw_mipi_dsi_clear_err(struct dw_mipi_dsi *dsi)
static void dw_mipi_dsi_bridge_post_disable(struct drm_bridge *bridge)
{
struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+ const struct dw_mipi_dsi_phy_ops *phy_ops = dsi->plat_data->phy_ops;
+
+ if (phy_ops->power_off)
+ phy_ops->power_off(dsi->plat_data->priv_data);

/*
* Switch to command mode before panel-bridge post_disable &
@@ -874,11 +878,15 @@ static void dw_mipi_dsi_bridge_mode_set(struct drm_bridge *bridge,
static void dw_mipi_dsi_bridge_enable(struct drm_bridge *bridge)
{
struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+ const struct dw_mipi_dsi_phy_ops *phy_ops = dsi->plat_data->phy_ops;

/* Switch to video mode for panel-bridge enable & panel enable */
dw_mipi_dsi_set_mode(dsi, MIPI_DSI_MODE_VIDEO);
if (dsi->slave)
dw_mipi_dsi_set_mode(dsi->slave, MIPI_DSI_MODE_VIDEO);
+
+ if (phy_ops->power_on)
+ phy_ops->power_on(dsi->plat_data->priv_data);
}

static enum drm_mode_status
diff --git a/include/drm/bridge/dw_mipi_dsi.h b/include/drm/bridge/dw_mipi_dsi.h
index 7d3dd69..df6eda6 100644
--- a/include/drm/bridge/dw_mipi_dsi.h
+++ b/include/drm/bridge/dw_mipi_dsi.h
@@ -14,6 +14,8 @@ struct dw_mipi_dsi;

struct dw_mipi_dsi_phy_ops {
int (*init)(void *priv_data);
+ void (*power_on)(void *priv_data);
+ void (*power_off)(void *priv_data);
int (*get_lane_mbps)(void *priv_data,
const struct drm_display_mode *mode,
unsigned long mode_flags, u32 lanes, u32 format,
--
2.7.4
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