[POWERPC] QE: get rid of most device_types and model

Now we're searching for "fsl,qe", "fsl,qe-muram", "fsl,qe-muram-data"
and "fsl,qe-ic".

Unfortunately it's still impossible to remove device_type = "qe"
from the existing device trees because older u-boots are looking for it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

2 files changed, 48 insertions, 20 deletions

diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index f2c0988a03b8..26f7d83c4be5 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -1276,7 +1276,10 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
         const u32 *sysclk;
 
         /* SPI controller is either clocked from QE or SoC clock */
-        np = of_find_node_by_type(NULL, "qe");
+        np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+        if (!np)
+                np = of_find_node_by_type(NULL, "qe");
+
         if (!np)
                 np = of_find_node_by_type(NULL, "soc");
 
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index 3925eae9b0f5..5ef844da9355 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -65,17 +65,22 @@ static phys_addr_t qebase = -1;
 phys_addr_t get_qe_base(void)
 {
         struct device_node *qe;
+        unsigned int size;
+        const void *prop;
 
         if (qebase != -1)
                 return qebase;
 
-        qe = of_find_node_by_type(NULL, "qe");
-        if (qe) {
-                unsigned int size;
-                const void *prop = of_get_property(qe, "reg", &size);
-                qebase = of_translate_address(qe, prop);
-                of_node_put(qe);
-        };
+        qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+        if (!qe) {
+                qe = of_find_node_by_type(NULL, "qe");
+                if (!qe)
+                        return qebase;
+        }
+
+        prop = of_get_property(qe, "reg", &size);
+        qebase = of_translate_address(qe, prop);
+        of_node_put(qe);
 
         return qebase;
 }
@@ -153,16 +158,26 @@ static unsigned int brg_clk = 0;
 unsigned int get_brg_clk(void)
 {
         struct device_node *qe;
+        unsigned int size;
+        const u32 *prop;
+
         if (brg_clk)
                 return brg_clk;
 
-        qe = of_find_node_by_type(NULL, "qe");
-        if (qe) {
-                unsigned int size;
-                const u32 *prop = of_get_property(qe, "brg-frequency", &size);
-                brg_clk = *prop;
-                of_node_put(qe);
-        };
+        qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+        if (!qe) {
+                qe = of_find_node_by_type(NULL, "qe");
+                if (!qe)
+                        return brg_clk;
+        }
+
+        prop = of_get_property(qe, "brg-frequency", &size);
+        if (!prop || size != sizeof(*prop))
+                return brg_clk;
+
+        brg_clk = *prop;
+        of_node_put(qe);
+
         return brg_clk;
 }
 
@@ -322,7 +337,7 @@ static rh_info_t qe_muram_info;
 static void qe_muram_init(void)
 {
         struct device_node *np;
-        u32 address;
+        const u32 *address;
         u64 size;
         unsigned int flags;
 
@@ -335,11 +350,21 @@ static void qe_muram_init(void)
         /* XXX: This is a subset of the available muram. It
          * varies with the processor and the microcode patches activated.
          */
-        if ((np = of_find_node_by_name(NULL, "data-only")) != NULL) {
-                address = *of_get_address(np, 0, &size, &flags);
-                of_node_put(np);
-                rh_attach_region(&qe_muram_info, address, (int) size);
+        np = of_find_compatible_node(NULL, NULL, "fsl,qe-muram-data");
+        if (!np) {
+                np = of_find_node_by_name(NULL, "data-only");
+                if (!np) {
+                        WARN_ON(1);
+                        return;
+                }
         }
+
+        address = of_get_address(np, 0, &size, &flags);
+        WARN_ON(!address);
+
+        of_node_put(np);
+        if (address)
+                rh_attach_region(&qe_muram_info, *address, (int)size);
 }
 
 /* This function returns an index into the MURAM area.