pch_dma: Support new device LAPIS Semiconductor ML7831 IOH

ML7831 is companion chip for Intel Atom E6xx series.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

2 files changed, 11 insertions, 7 deletions

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 606592ecd04f..7ec0d6cef0c3 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -201,18 +201,18 @@ config PL330_DMA
           platform_data for a dma-pl330 device.
 
 config PCH_DMA
-        tristate "Intel EG20T PCH / LAPIS Semi IOH(ML7213/ML7223) DMA support"
+        tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
         depends on PCI && X86
         select DMA_ENGINE
         help
           Enable support for Intel EG20T PCH DMA engine.
 
           This driver also can be used for LAPIS Semiconductor IOH(Input/
-          Output Hub), ML7213 and ML7223.
-          ML7213 IOH is for IVI(In-Vehicle Infotainment) use and ML7223 IOH is
-          for MP(Media Phone) use.
-          ML7213/ML7223 is companion chip for Intel Atom E6xx series.
-          ML7213/ML7223 is completely compatible for Intel EG20T PCH.
+          Output Hub), ML7213, ML7223 and ML7831.
+          ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
+          for MP(Media Phone) use and ML7831 IOH is for general purpose use.
+          ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
+          ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 
 config IMX_SDMA
         tristate "i.MX SDMA support"
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index a9b8a7971211..60aca37e22ea 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -1018,6 +1018,8 @@ static void __devexit pch_dma_remove(struct pci_dev *pdev)
 #define PCI_DEVICE_ID_ML7223_DMA2_4CH   0x800E
 #define PCI_DEVICE_ID_ML7223_DMA3_4CH   0x8017
 #define PCI_DEVICE_ID_ML7223_DMA4_4CH   0x803B
+#define PCI_DEVICE_ID_ML7831_DMA1_8CH   0x8810
+#define PCI_DEVICE_ID_ML7831_DMA2_4CH   0x8815
 
 DEFINE_PCI_DEVICE_TABLE(pch_dma_id_table) = {
         { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_EG20T_PCH_DMA_8CH), 8 },
@@ -1030,6 +1032,8 @@ DEFINE_PCI_DEVICE_TABLE(pch_dma_id_table) = {
         { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7223_DMA2_4CH), 4}, /* Video SPI */
         { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7223_DMA3_4CH), 4}, /* Security */
         { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7223_DMA4_4CH), 4}, /* FPGA */
+        { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7831_DMA1_8CH), 8}, /* UART */
+        { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ML7831_DMA2_4CH), 4}, /* SPI */
         { 0, },
 };
 
@@ -1057,7 +1061,7 @@ static void __exit pch_dma_exit(void)
 module_init(pch_dma_init);
 module_exit(pch_dma_exit);
 
-MODULE_DESCRIPTION("Intel EG20T PCH / LAPIS Semiconductor ML7213/ML7223 IOH "
+MODULE_DESCRIPTION("Intel EG20T PCH / LAPIS Semicon ML7213/ML7223/ML7831 IOH "
                    "DMA controller driver");
 MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
 MODULE_LICENSE("GPL v2");