1 files changed, 12 insertions, 0 deletions

diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index c1c7eeeb199b..3690ea05b042 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -2392,6 +2392,18 @@ snd_m3_chip_init(m3_t *chip)
                DISABLE_LEGACY);
         pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
 
+        /*
+         * Volume buttons on some HP OmniBook laptops (500 and 6000 at least)
+         * don't work correctly. This makes them work for the most part.
+         * Volume up and down buttons on the laptop side work perfectly.
+         * Fn+cursor_up (volme up) works, Fn+cursor_down (volume down) doesn't,
+         * Fn+F8 (mute) works acts as volume up.
+         */
+        outw(~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_MASK);
+        outw(inw(io + GPIO_DIRECTION) & ~(GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DIRECTION);
+        outw((GPI_VOL_DOWN|GPI_VOL_UP), io + GPIO_DATA);
+        outw(0xffff, io + GPIO_MASK);
+
         pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
         n &= ~HV_BUTTON_FROM_GD;
         n |= HV_CTRL_ENABLE | REDUCED_DEBOUNCE;