staging: sm7xx: update comments and clarify supported chips

This patch updates/adds comments in order to clarify devices and Lynx
families supported for this driver.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/sm7xx/Kconfig b/drivers/staging/sm7xx/Kconfig
index 315102c7fed1c525ecdea530f0404e1bcb800479..323964f5b1a9af7e3e4c6fd03f04b7e288068739 100644 (file)
--- a/drivers/staging/sm7xx/Kconfig
+++ b/drivers/staging/sm7xx/Kconfig
@@ -1,8 +1,13 @@
 config FB_SM7XX
-       tristate "Silicon Motion SM7XX Frame Buffer Support"
+       tristate "Silicon Motion SM7XX framebuffer support"
        depends on FB
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
        select FB_CFB_IMAGEBLIT
        help
-         Frame Buffer driver for the Silicon Motion SM7XX serial graphic card.
+         Frame buffer driver for the Silicon Motion SM710, SM712, SM721
+         and SM722 chips.
+
+         This driver is also available as a module. The module will be
+         called sm7xx. If you want to compile it as a module, say M
+         here and read <file:Documentation/kbuild/modules.txt>.

diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
index 2c172d6cd65fa3efce611ae02c00580dec7d6976..e7028a312ce1f7a56faca560f61316b55d0190d6 100644 (file)
--- a/drivers/staging/sm7xx/smtcfb.c
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -15,6 +15,7 @@
  * License. See the file COPYING in the main directory of this archive for
  * more details.
  *
+ * Framebuffer driver for Silicon Motion SM710, SM712, SM721 and SM722 chips
  */
 
 #include <linux/io.h>
@@ -758,7 +759,7 @@ static void smtc_unmap_smem(struct smtcfb_info *sfb)
 }
 
 /*
- * We need to wake up the LynxEM+, and make sure its in linear memory mode.
+ * We need to wake up the device and make sure its in linear memory mode.
  */
 static inline void sm7xx_init_hw(void)
 {
@@ -963,7 +964,11 @@ failed_free:
        return err;
 }
 
-
+/*
+ * 0x710 (LynxEM)
+ * 0x712 (LynxEM+)
+ * 0x720 (Lynx3DM, Lynx3DM+)
+ */
 static DEFINE_PCI_DEVICE_TABLE(smtcfb_pci_table) = {
        { PCI_DEVICE(0x126f, 0x710), },
        { PCI_DEVICE(0x126f, 0x712), },
@@ -971,7 +976,6 @@ static DEFINE_PCI_DEVICE_TABLE(smtcfb_pci_table) = {
        {0,}
 };
 
-
 static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
 {
        struct smtcfb_info *sfb;