dmaengine: ti: k3-psil: Use soc_device_match to get the psil map

Instead of separate of_machine_is_compatible() it is better to use
soc_device_match() and soc_device_attribute struct to get the PSI-L map
for the booted device.

By using soc_device_match() it is easier to add support for new devices.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200803125713.17829-2-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/ti/k3-psil.c b/drivers/dma/ti/k3-psil.c
index fb7c8150b0d1d971ded5f66091c039864ee23215..fa106e8bd56bcdf87c77dc1fe06c6faf3374bf14 100644 (file)
--- a/drivers/dma/ti/k3-psil.c
+++ b/drivers/dma/ti/k3-psil.c
@@ -9,11 +9,18 @@
 #include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
+#include <linux/sys_soc.h>
 
 #include "k3-psil-priv.h"
 
 static DEFINE_MUTEX(ep_map_mutex);
-static struct psil_ep_map *soc_ep_map;
+static const struct psil_ep_map *soc_ep_map;
+
+static const struct soc_device_attribute k3_soc_devices[] = {
+       { .family = "AM65X", .data = &am654_ep_map },
+       { .family = "J721E", .data = &j721e_ep_map },
+       { /* sentinel */ }
+};
 
 struct psil_endpoint_config *psil_get_ep_config(u32 thread_id)
 {
@@ -21,10 +28,11 @@ struct psil_endpoint_config *psil_get_ep_config(u32 thread_id)
 
        mutex_lock(&ep_map_mutex);
        if (!soc_ep_map) {
-               if (of_machine_is_compatible("ti,am654")) {
-                       soc_ep_map = &am654_ep_map;
-               } else if (of_machine_is_compatible("ti,j721e")) {
-                       soc_ep_map = &j721e_ep_map;
+               const struct soc_device_attribute *soc;
+
+               soc = soc_device_match(k3_soc_devices);
+               if (soc) {
+                       soc_ep_map = soc->data;
                } else {
                        pr_err("PSIL: No compatible machine found for map\n");
                        mutex_unlock(&ep_map_mutex);