Integrate low-power / high-speed bus switching into transfer function and drop the omapdrm specific enable_hs() callback.
Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com --- drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 6 +++--- drivers/gpu/drm/omapdrm/dss/dsi.c | 13 +++++++++++-- drivers/gpu/drm/omapdrm/dss/omapdss.h | 2 -- 3 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index 8ad407a4072e..79ac1f6b375a 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -269,7 +269,7 @@ static int dsicm_exit_ulps(struct panel_drv_data *ddata) return 0;
src->ops->enable(src); - src->ops->dsi.enable_hs(src, ddata->dsi->channel, true); + ddata->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
r = _dsicm_enable_te(ddata, true); if (r) { @@ -574,7 +574,7 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
dsicm_hw_reset(ddata);
- src->ops->dsi.enable_hs(src, ddata->dsi->channel, false); + ddata->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
r = dsicm_sleep_out(ddata); if (r) @@ -617,7 +617,7 @@ static int dsicm_power_on(struct panel_drv_data *ddata) ddata->intro_printed = true; }
- src->ops->dsi.enable_hs(src, ddata->dsi->channel, true); + ddata->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
return 0; err: diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index 6c625b6d6d6b..15298ebb9d69 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -45,6 +45,9 @@ struct dsi_reg { u16 module; u16 idx; };
#define DSI_REG(mod, idx) ((const struct dsi_reg) { mod, idx })
+/* returns true iff both arguments logically differs */ +#define NEQV(a, b) (!(a) ^ !(b)) + /* DSI Protocol Engine */
#define DSI_PROTO 0 @@ -329,6 +332,7 @@ struct dsi_data { int irq;
bool is_enabled; + bool in_lp_mode;
struct clk *dss_clk; struct regmap *syscon; @@ -2431,6 +2435,8 @@ static void dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel, /* start the DDR clock by sending a NULL packet */ if (dsi->vm_timings.ddr_clk_always_on && enable) dsi_vc_send_null(dsi, channel); + + dsi->in_lp_mode = !enable; }
static void dsi_vc_flush_long_data(struct dsi_data *dsi, int channel) @@ -4697,6 +4703,11 @@ static ssize_t omap_dsi_host_transfer(struct mipi_dsi_host *host, struct dsi_data *dsi = host_to_omap(host); struct omap_dss_device *dssdev = &dsi->output;
+ if (NEQV(msg->flags & MIPI_DSI_MSG_USE_LPM, dsi->in_lp_mode)) { + dsi_vc_enable_hs(dssdev, msg->channel, + !(msg->flags & MIPI_DSI_MSG_USE_LPM)); + } + switch (msg->type) { case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM: case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM: @@ -4757,8 +4768,6 @@ static const struct omap_dss_device_ops dsi_ops = {
.disable = dsi_display_disable,
- .enable_hs = dsi_vc_enable_hs, - .set_config = dsi_set_config,
.enable_video_output = dsi_enable_video_output, diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h index 2c6c32240e20..355aa235c23c 100644 --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h @@ -287,8 +287,6 @@ struct omapdss_dsi_ops { int (*set_config)(struct omap_dss_device *dssdev, const struct omap_dss_dsi_config *cfg);
- void (*enable_hs)(struct omap_dss_device *dssdev, int channel, - bool enable); int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
int (*update)(struct omap_dss_device *dssdev, int channel,