diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/dsi.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index 9499e424ec90..6d97ca018a62 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -341,7 +341,6 @@ struct dsi_data { int irq; bool is_enabled; - bool in_lp_mode; struct clk *dss_clk; struct regmap *syscon; @@ -2443,6 +2442,9 @@ static void dsi_vc_enable_hs(struct omap_dss_device *dssdev, int vc, DSSDBG("dsi_vc_enable_hs(%d, %d)\n", vc, enable); + if (REG_GET(dsi, DSI_VC_CTRL(vc), 9, 9) == enable) + return; + WARN_ON(!dsi_bus_is_locked(dsi)); dsi_vc_enable(dsi, vc, 0); @@ -2458,8 +2460,6 @@ static void dsi_vc_enable_hs(struct omap_dss_device *dssdev, int vc, /* start the DDR clock by sending a NULL packet */ if (dsi->vm_timings.ddr_clk_always_on && enable) dsi_vc_send_null(dsi, vc, dsi->dsidev->channel); - - dsi->in_lp_mode = !enable; } static void dsi_vc_flush_long_data(struct dsi_data *dsi, int vc) @@ -4888,9 +4888,7 @@ static ssize_t _omap_dsi_host_transfer(struct dsi_data *dsi, int vc, struct omap_dss_device *dssdev = &dsi->output; int r; - if (!!(msg->flags & MIPI_DSI_MSG_USE_LPM) != dsi->in_lp_mode) - dsi_vc_enable_hs(dssdev, vc, - !(msg->flags & MIPI_DSI_MSG_USE_LPM)); + dsi_vc_enable_hs(dssdev, vc, !(msg->flags & MIPI_DSI_MSG_USE_LPM)); switch (msg->type) { case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM: |