layerscape: add ls1088ardb device support

[openwrt/staging/yousong.git] / target / linux / layerscape / patches-4.4 / 7217-dpaa2-evb-Add-object-version-check.patch

diff --git a/target/linux/layerscape/patches-4.4/7217-dpaa2-evb-Add-object-version-check.patch b/target/linux/layerscape/patches-4.4/7217-dpaa2-evb-Add-object-version-check.patch
new file mode 100644 (file)
index 0000000..13d61cf
--- /dev/null
+++ b/target/linux/layerscape/patches-4.4/7217-dpaa2-evb-Add-object-version-check.patch
@@ -0,0 +1,43 @@
+From 213c59501bbd6da8c56e95f90f8a8c6af2682002 Mon Sep 17 00:00:00 2001
+From: Razvan Stefanescu <razvan.stefanescu@freescale.com>
+Date: Thu, 18 Feb 2016 10:54:40 +0200
+Subject: [PATCH 217/226] dpaa2-evb: Add object version check
+
+Abort probing if DPDMUX object version is smaller than required.
+
+Signed-off-by: Razvan Stefanescu <razvan.stefanescu@freescale.com>
+---
+ drivers/staging/fsl-dpaa2/evb/evb.c |   15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+--- a/drivers/staging/fsl-dpaa2/evb/evb.c
++++ b/drivers/staging/fsl-dpaa2/evb/evb.c
+@@ -44,6 +44,10 @@
+ #include "dpdmux.h"
+ #include "dpdmux-cmd.h"
+ 
++/* Minimal supported DPDMUX version */
++#define DPDMUX_MIN_VER_MAJOR                  5
++#define DPDMUX_MIN_VER_MINOR                  0
++
+ /* IRQ index */
+ #define DPDMUX_MAX_IRQ_NUM                    2
+ 
+@@ -1004,6 +1008,17 @@ static int evb_init(struct fsl_mc_device
+               goto err_close;
+       }
+ 
++      /* Minimum supported DPDMUX version check */
++      if (priv->attr.version.major < DPDMUX_MIN_VER_MAJOR ||
++          (priv->attr.version.major == DPDMUX_MIN_VER_MAJOR &&
++           priv->attr.version.minor < DPDMUX_MIN_VER_MINOR)) {
++              dev_err(dev, "DPDMUX version %d.%d not supported. Use %d.%d or greater.\n",
++                      priv->attr.version.major, priv->attr.version.minor,
++                      DPDMUX_MIN_VER_MAJOR, DPDMUX_MIN_VER_MAJOR);
++              err = -ENOTSUPP;
++              goto err_close;
++      }
++
+       err = dpdmux_reset(priv->mc_io, 0, priv->mux_handle);
+       if (unlikely(err)) {
+               dev_err(dev, "dpdmux_reset err %d\n", err);