linux-kernel - [PATCH] 3.19-rc7: add quirk for 1c28:0122 (rev 14) SATA controller

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Date:	Mon, 02 Feb 2015 12:29:37 +0100
From:	Tim Sander <tim@...eglstein.org>
To:	linux-kernel@...r.kernel.org
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org
Subject: [PATCH] 3.19-rc7: add quirk for 1c28:0122 (rev 14) SATA controller


The long name for this device is
Lite-On IT Corp. / Plextor M6e PCI Express SSD [Marvell 88SS9183] (rev 14)

Background: the error description on bugzilla
https://bugzilla.kernel.org/show_bug.cgi?id=42679
inspired me to check if my brand new m4 pci ssd could work with a quirk.
Its device representation is not visible before this patch.
After this patch it appears as a normal device. Formatting
and mounting worked so far.

Signed-off-by: Tim Sander <tim@...eglstein.org>
---
 drivers/pci/quirks.c    | 4 ++++
 include/linux/pci_ids.h | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index e52356a..fad7383 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3540,6 +3540,10 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0642,
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON,
                         PCI_DEVICE_ID_JMICRON_JMB388_ESD,
                         quirk_dma_func1_alias);
+/* https://bugzilla.kernel.org/show_bug.cgi?id=42679 */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_LITE_ON,
+                        PCI_DEVICE_ID_PLEXTOR_M6E,
+                        quirk_dma_func1_alias);
 
 /*
  * A few PCIe-to-PCI bridges fail to expose a PCIe capability, resulting in
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index e63c02a..1607b20 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2487,6 +2487,9 @@
 
 #define PCI_VENDOR_ID_ASMEDIA          0x1b21
 
+#define PCI_VENDOR_ID_LITE_ON          0x1c28
+#define PCI_DEVICE_ID_PLEXTOR_M6E      0x0122
+
 #define PCI_VENDOR_ID_CIRCUITCO                0x1cc8
 #define PCI_SUBSYSTEM_ID_CIRCUITCO_MINNOWBOARD 0x0001
 
-- 
1.9.1


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