Merge tag 'v3.15-rc1' into patchwork

Linux 3.15-rc1

* tag 'v3.15-rc1': (12180 commits)
  Linux 3.15-rc1
  mm: Initialize error in shmem_file_aio_read()
  cifs: Use min_t() when comparing "size_t" and "unsigned long"
  sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
  powerpc: Don't try to set LPCR unless we're in hypervisor mode
  futex: update documentation for ordering guarantees
  ceph: fix pr_fmt() redefinition
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  blackfin: cleanup board files
  bf609: clock: drop unused clock bit set/clear functions
  Blackfin: bf537: rename "CONFIG_ADT75"
  ...

1 files changed, 16 insertions, 45 deletions

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 63fb1af2c431..1c38f86bf63a 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -14,7 +14,6 @@
 #include "jr.h"
 #include "desc_constr.h"
 #include "error.h"
-#include "ctrl.h"
 
 /*
  * Descriptor to instantiate RNG State Handle 0 in normal mode and
@@ -352,32 +351,17 @@ static void kick_trng(struct platform_device *pdev, int ent_delay)
 
 /**
  * caam_get_era() - Return the ERA of the SEC on SoC, based
- * on the SEC_VID register.
- * Returns the ERA number (1..4) or -ENOTSUPP if the ERA is unknown.
- * @caam_id - the value of the SEC_VID register
+ * on "sec-era" propery in the DTS. This property is updated by u-boot.
  **/
-int caam_get_era(u64 caam_id)
+int caam_get_era(void)
 {
-	struct sec_vid *sec_vid = (struct sec_vid *)&caam_id;
-	static const struct {
-		u16 ip_id;
-		u8 maj_rev;
-		u8 era;
-	} caam_eras[] = {
-		{0x0A10, 1, 1},
-		{0x0A10, 2, 2},
-		{0x0A12, 1, 3},
-		{0x0A14, 1, 3},
-		{0x0A14, 2, 4},
-		{0x0A16, 1, 4},
-		{0x0A11, 1, 4}
-	};
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(caam_eras); i++)
-		if (caam_eras[i].ip_id == sec_vid->ip_id &&
-			caam_eras[i].maj_rev == sec_vid->maj_rev)
-				return caam_eras[i].era;
+	struct device_node *caam_node;
+	for_each_compatible_node(caam_node, NULL, "fsl,sec-v4.0") {
+		const uint32_t *prop = (uint32_t *)of_get_property(caam_node,
+				"fsl,sec-era",
+				NULL);
+		return prop ? *prop : -ENOTSUPP;
+	}
 
 	return -ENOTSUPP;
 }
@@ -443,13 +427,10 @@ static int caam_probe(struct platform_device *pdev)
 	 * for all, then go probe each one.
 	 */
 	rspec = 0;
-	for_each_compatible_node(np, NULL, "fsl,sec-v4.0-job-ring")
-		rspec++;
-	if (!rspec) {
-		/* for backward compatible with device trees */
-		for_each_compatible_node(np, NULL, "fsl,sec4.0-job-ring")
+	for_each_available_child_of_node(nprop, np)
+		if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
+		    of_device_is_compatible(np, "fsl,sec4.0-job-ring"))
 			rspec++;
-	}
 
 	ctrlpriv->jrpdev = kzalloc(sizeof(struct platform_device *) * rspec,
 								GFP_KERNEL);
@@ -460,18 +441,9 @@ static int caam_probe(struct platform_device *pdev)
 
 	ring = 0;
 	ctrlpriv->total_jobrs = 0;
-	for_each_compatible_node(np, NULL, "fsl,sec-v4.0-job-ring") {
-		ctrlpriv->jrpdev[ring] =
-				of_platform_device_create(np, NULL, dev);
-		if (!ctrlpriv->jrpdev[ring]) {
-			pr_warn("JR%d Platform device creation error\n", ring);
-			continue;
-		}
-		ctrlpriv->total_jobrs++;
-		ring++;
-	}
-	if (!ring) {
-		for_each_compatible_node(np, NULL, "fsl,sec4.0-job-ring") {
+	for_each_available_child_of_node(nprop, np)
+		if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
+		    of_device_is_compatible(np, "fsl,sec4.0-job-ring")) {
 			ctrlpriv->jrpdev[ring] =
 				of_platform_device_create(np, NULL, dev);
 			if (!ctrlpriv->jrpdev[ring]) {
@@ -482,7 +454,6 @@ static int caam_probe(struct platform_device *pdev)
 			ctrlpriv->total_jobrs++;
 			ring++;
 		}
-	}
 
 	/* Check to see if QI present. If so, enable */
 	ctrlpriv->qi_present = !!(rd_reg64(&topregs->ctrl.perfmon.comp_parms) &
@@ -564,7 +535,7 @@ static int caam_probe(struct platform_device *pdev)
 
 	/* Report "alive" for developer to see */
 	dev_info(dev, "device ID = 0x%016llx (Era %d)\n", caam_id,
-		 caam_get_era(caam_id));
+		 caam_get_era());
 	dev_info(dev, "job rings = %d, qi = %d\n",
 		 ctrlpriv->total_jobrs, ctrlpriv->qi_present);