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| author | Enrik Berkhan <Enrik.Berkhan@inka.de> | 2022-08-12 16:35:19 +0200 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2022-09-14 11:19:39 +0100 |
| commit | 3b9a030e846dd42a53f9f5bdcdd0228bb898e01b (patch) | |
| tree | 9c1f5b4082883651aa2a497380d1694921d2a3bb /hw | |
| parent | 3b16766b5ae7f61079e3ae674e140219c4cdbe85 (diff) | |
| download | qemu-3b9a030e846dd42a53f9f5bdcdd0228bb898e01b.zip qemu-3b9a030e846dd42a53f9f5bdcdd0228bb898e01b.tar.gz qemu-3b9a030e846dd42a53f9f5bdcdd0228bb898e01b.tar.bz2 | |
hw/arm/bcm2835_property: Add support for RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS
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 <f4bug@amsat.org>
Signed-off-by: Enrik Berkhan <Enrik.Berkhan@inka.de>
Message-Id: <20220812143519.59134-1-Enrik.Berkhan@inka.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/misc/bcm2835_property.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c index e94e951..890ae7b 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 */ |