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>

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 4097f3f..e71ec78 100644 (file)
--- 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
         */