From: Enrik Berkhan <[email protected]> In more recent Raspbian OS Linux kernels, the fb driver gives up immediately if RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS fails or no displays are reported.
This change simply always reports one display. It makes bcm2835_fb work again with these more recent kernels. Reviewed-by: Philippe Mathieu-Daudé <[email protected]> Signed-off-by: Enrik Berkhan <[email protected]> Message-Id: <[email protected]> Signed-off-by: Richard Henderson <[email protected]> --- hw/misc/bcm2835_property.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c index e94e951057..890ae7bae5 100644 --- a/hw/misc/bcm2835_property.c +++ b/hw/misc/bcm2835_property.c @@ -270,6 +270,10 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) stl_le_phys(&s->dma_as, value + 12, 0); resplen = 4; break; + case 0x00040013: /* Get number of displays */ + stl_le_phys(&s->dma_as, value + 12, 1); + resplen = 4; + break; case 0x00060001: /* Get DMA channels */ /* channels 2-5 */ -- 2.34.1
