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i2c: pm_smbus: Add the ability to force block transfer enable

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The PIIX4 hardware has block transfer buffer always enabled in
the hardware, but the i801 does not.  Add a parameter to pm_smbus_init
to force on the block transfer so the PIIX4 handler can enable this
by default, as it was disabled by default before.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1534796770-10295-9-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Corey Minyard 2018-08-20 15:26:08 -05:00 • committed by Paolo Bonzini
parent 12bd93c150
commit 45726b6e2c
5 changed files with 8 additions and 5 deletions
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2
hw/isa/vt82c686.c
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@ -370,7 +370,7 @@ static void vt82c686b_pm_realize(PCIDevice *dev, Error **errp)
pci_conf[0x90] = s->smb_io_base | 1;
pci_conf[0x91] = s->smb_io_base >> 8;
pci_conf[0xd2] = 0x90;
pm_smbus_init(&s->dev.qdev, &s->smb);
pm_smbus_init(&s->dev.qdev, &s->smb, false);
memory_region_add_subregion(get_system_io(), s->smb_io_base, &s->smb.io);
apm_init(dev, &s->apm, NULL, s);