drm/imx: hdmi: fix HDMI setup to allow modes larger than FullHD
This worked before the dw-hdmi bridge code was changed to validate
the setup data more strictly. Add back support for modes with a
pixel clock up to 216MHz. Even higher clocks should work, but we
are missing the required setup data for now.
Also change the mode validate callbacks to disallow modes with
higher pixelclocks, so we don't end up failing the modeset later
on.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c
index 644edf6..98605ea 100644
--- a/drivers/gpu/drm/imx/dw_hdmi-imx.c
+++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c
@@ -48,11 +48,17 @@
{ 0x40a2, 0x000a },
},
}, {
- ~0UL, {
+ 216000000, {
{ 0x00a0, 0x000a },
{ 0x2001, 0x000f },
{ 0x4002, 0x000f },
},
+ }, {
+ ~0UL, {
+ { 0x0000, 0x0000 },
+ { 0x0000, 0x0000 },
+ { 0x0000, 0x0000 },
+ },
}
};
@@ -82,7 +88,7 @@
*/
static const struct dw_hdmi_phy_config imx_phy_config[] = {
/*pixelclk symbol term vlev */
- { 148500000, 0x800d, 0x0005, 0x01ad},
+ { 216000000, 0x800d, 0x0005, 0x01ad},
{ ~0UL, 0x0000, 0x0000, 0x0000}
};
@@ -148,7 +154,8 @@
{
if (mode->clock < 13500)
return MODE_CLOCK_LOW;
- if (mode->clock > 266000)
+ /* FIXME: Hardware is capable of 266MHz, but setup data is missing. */
+ if (mode->clock > 216000)
return MODE_CLOCK_HIGH;
return MODE_OK;
@@ -159,7 +166,8 @@
{
if (mode->clock < 13500)
return MODE_CLOCK_LOW;
- if (mode->clock > 270000)
+ /* FIXME: Hardware is capable of 270MHz, but setup data is missing. */
+ if (mode->clock > 216000)
return MODE_CLOCK_HIGH;
return MODE_OK;