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path: root/drivers/video/omap2/dss/dss.c
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Diffstat (limited to 'drivers/video/omap2/dss/dss.c')
-rw-r--r--drivers/video/omap2/dss/dss.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index bd2d5e159463..e212acb1e7d5 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -335,7 +335,7 @@ void dss_select_dsi_clk_source(int dsi_module,
enum omap_dss_clk_source clk_src)
{
struct platform_device *dsidev;
- int b;
+ int b, pos;
switch (clk_src) {
case OMAP_DSS_CLK_SRC_FCK:
@@ -357,7 +357,8 @@ void dss_select_dsi_clk_source(int dsi_module,
BUG();
}
- REG_FLD_MOD(DSS_CONTROL, b, 1, 1); /* DSI_CLK_SWITCH */
+ pos = dsi_module == 0 ? 1 : 10;
+ REG_FLD_MOD(DSS_CONTROL, b, pos, pos); /* DSIx_CLK_SWITCH */
dss.dsi_clk_source[dsi_module] = clk_src;
}
@@ -829,11 +830,24 @@ static int omap_dsshw_remove(struct platform_device *pdev)
static int dss_runtime_suspend(struct device *dev)
{
dss_save_context();
+ dss_set_min_bus_tput(dev, 0);
return 0;
}
static int dss_runtime_resume(struct device *dev)
{
+ int r;
+ /*
+ * Set an arbitrarily high tput request to ensure OPP100.
+ * What we should really do is to make a request to stay in OPP100,
+ * without any tput requirements, but that is not currently possible
+ * via the PM layer.
+ */
+
+ r = dss_set_min_bus_tput(dev, 1000000000);
+ if (r)
+ return r;
+
dss_restore_context();
return 0;
}