The TDA998x can't handle modes with clocks above 150MHz, or resolutions larger than 8192x2048.
Signed-off-by: Russell King rmk+kernel@arm.linux.org.uk --- David, this will be part of a pull request which I intend to send during the next few days. Luckily, the mode_valid method in tda998x hasn't was not deleted.
drivers/gpu/drm/i2c/tda998x_drv.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index 3ff7d0713bfb..5a738ad0c241 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -810,6 +810,12 @@ static int tda998x_encoder_mode_valid(struct drm_encoder *encoder, struct drm_display_mode *mode) { + if (mode->clock > 150000) + return MODE_CLOCK_HIGH; + if (mode->htotal >= BIT(13)) + return MODE_BAD_HVALUE; + if (mode->vtotal >= BIT(11)) + return MODE_BAD_VVALUE; return MODE_OK; }