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authorMika Westerberg <mika.westerberg@linux.intel.com>2016-01-29 16:49:47 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-01-29 08:15:33 -0800
commit6c55d9b98335f7f6bd5f061866ff1633401f3a44 (patch)
tree96d5ad2b9a1d92230caf1ec92b6cce8a022af7c1
parentf4f9edcf9b5289ed96113e79fa65a7bf27ecb096 (diff)
serial: 8250_pci: Add Intel Broadwell ports
Some recent (early 2015) macbooks have Intel Broadwell where LPSS UARTs are PCI enumerated instead of ACPI. The LPSS UART block is pretty much same as used on Intel Baytrail so we can reuse the existing Baytrail setup code. Add both Broadwell LPSS UART ports to the list of supported devices. Signed-off-by: Leif Liddy <leif.liddy@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/serial/8250/8250_pci.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 4097f3f65b3b..e71ec78fc11e 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1379,6 +1379,9 @@ ce4100_serial_setup(struct serial_private *priv,
#define PCI_DEVICE_ID_INTEL_BSW_UART1 0x228a
#define PCI_DEVICE_ID_INTEL_BSW_UART2 0x228c
+#define PCI_DEVICE_ID_INTEL_BDW_UART1 0x9ce3
+#define PCI_DEVICE_ID_INTEL_BDW_UART2 0x9ce4
+
#define BYT_PRV_CLK 0x800
#define BYT_PRV_CLK_EN (1 << 0)
#define BYT_PRV_CLK_M_VAL_SHIFT 1
@@ -1461,11 +1464,13 @@ byt_serial_setup(struct serial_private *priv,
switch (pdev->device) {
case PCI_DEVICE_ID_INTEL_BYT_UART1:
case PCI_DEVICE_ID_INTEL_BSW_UART1:
+ case PCI_DEVICE_ID_INTEL_BDW_UART1:
rx_param->src_id = 3;
tx_param->dst_id = 2;
break;
case PCI_DEVICE_ID_INTEL_BYT_UART2:
case PCI_DEVICE_ID_INTEL_BSW_UART2:
+ case PCI_DEVICE_ID_INTEL_BDW_UART2:
rx_param->src_id = 5;
tx_param->dst_id = 4;
break;
@@ -2062,6 +2067,20 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subdevice = PCI_ANY_ID,
.setup = byt_serial_setup,
},
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BDW_UART1,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .setup = byt_serial_setup,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BDW_UART2,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .setup = byt_serial_setup,
+ },
/*
* ITE
*/
@@ -5506,6 +5525,16 @@ static struct pci_device_id serial_pci_tbl[] = {
PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
pbn_byt },
+ /* Intel Broadwell */
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_UART1,
+ PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+ pbn_byt },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_UART2,
+ PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+ pbn_byt },
+
/*
* Intel Quark x1000
*/