diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/vga/vga_switcheroo.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c index a7870d2..9896305 100644 --- a/drivers/gpu/vga/vga_switcheroo.c +++ b/drivers/gpu/vga/vga_switcheroo.c @@ -84,9 +84,9 @@ * @fb_info: framebuffer to which console is remapped on switching * @pwr_state: current power state * @ops: client callbacks - * @id: client identifier, see enum vga_switcheroo_client_id. - * Determining the id requires the handler, so GPUs are initially - * assigned -1 and later given their true id in vga_switcheroo_enable() + * @id: client identifier. Determining the id requires the handler, + * so gpus are initially assigned VGA_SWITCHEROO_UNKNOWN_ID + * and later given their true id in vga_switcheroo_enable() * @active: whether the outputs are currently switched to this client * @driver_power_control: whether power state is controlled by the driver's * runtime pm. If true, writing ON and OFF to the vga_switcheroo debugfs @@ -145,7 +145,8 @@ struct vgasr_priv { #define ID_BIT_AUDIO 0x100 #define client_is_audio(c) ((c)->id & ID_BIT_AUDIO) -#define client_is_vga(c) ((c)->id == -1 || !client_is_audio(c)) +#define client_is_vga(c) ((c)->id == VGA_SWITCHEROO_UNKNOWN_ID || \ + !client_is_audio(c)) #define client_id(c) ((c)->id & ~ID_BIT_AUDIO) static int vga_switcheroo_debugfs_init(struct vgasr_priv *priv); @@ -173,7 +174,7 @@ static void vga_switcheroo_enable(void) vgasr_priv.handler->init(); list_for_each_entry(client, &vgasr_priv.clients, list) { - if (client->id != -1) + if (client->id != VGA_SWITCHEROO_UNKNOWN_ID) continue; ret = vgasr_priv.handler->get_client_id(client->pdev); if (ret < 0) @@ -277,7 +278,7 @@ int vga_switcheroo_register_client(struct pci_dev *pdev, const struct vga_switcheroo_client_ops *ops, bool driver_power_control) { - return register_client(pdev, ops, -1, + return register_client(pdev, ops, VGA_SWITCHEROO_UNKNOWN_ID, pdev == vga_default_device(), driver_power_control); } @@ -583,7 +584,7 @@ vga_switcheroo_debugfs_write(struct file *filp, const char __user *ubuf, int ret; bool delay = false, can_switch; bool just_mux = false; - int client_id = -1; + int client_id = VGA_SWITCHEROO_UNKNOWN_ID; struct vga_switcheroo_client *client = NULL; if (cnt > 63) @@ -652,7 +653,7 @@ vga_switcheroo_debugfs_write(struct file *filp, const char __user *ubuf, client_id = VGA_SWITCHEROO_DIS; } - if (client_id == -1) + if (client_id == VGA_SWITCHEROO_UNKNOWN_ID) goto out; client = find_client_from_id(&vgasr_priv.clients, client_id); if (!client) |