Merge Linus master into drm-next

The merge is clean, but the arm build fails afterwards,
due to API changes in the regulator tree.

I've included the patch into the merge to fix the build.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 25 insertions, 12 deletions

diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index 34db04addc18..5b35433c5399 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -163,8 +163,20 @@ static size_t atmel_sha_append_sg(struct atmel_sha_reqctx *ctx)
 		count = min(ctx->sg->length - ctx->offset, ctx->total);
 		count = min(count, ctx->buflen - ctx->bufcnt);
 
-		if (count <= 0)
-			break;
+		if (count <= 0) {
+			/*
+			* Check if count <= 0 because the buffer is full or
+			* because the sg length is 0. In the latest case,
+			* check if there is another sg in the list, a 0 length
+			* sg doesn't necessarily mean the end of the sg list.
+			*/
+			if ((ctx->sg->length == 0) && !sg_is_last(ctx->sg)) {
+				ctx->sg = sg_next(ctx->sg);
+				continue;
+			} else {
+				break;
+			}
+		}
 
 		scatterwalk_map_and_copy(ctx->buffer + ctx->bufcnt, ctx->sg,
 			ctx->offset, count, 0);
@@ -420,14 +432,8 @@ static int atmel_sha_xmit_dma(struct atmel_sha_dev *dd, dma_addr_t dma_addr1,
 	dev_dbg(dd->dev, "xmit_dma: digcnt: 0x%llx 0x%llx, length: %d, final: %d\n",
 		ctx->digcnt[1], ctx->digcnt[0], length1, final);
 
-	if (ctx->flags & (SHA_FLAGS_SHA1 | SHA_FLAGS_SHA224 |
-			SHA_FLAGS_SHA256)) {
-		dd->dma_lch_in.dma_conf.src_maxburst = 16;
-		dd->dma_lch_in.dma_conf.dst_maxburst = 16;
-	} else {
-		dd->dma_lch_in.dma_conf.src_maxburst = 32;
-		dd->dma_lch_in.dma_conf.dst_maxburst = 32;
-	}
+	dd->dma_lch_in.dma_conf.src_maxburst = 16;
+	dd->dma_lch_in.dma_conf.dst_maxburst = 16;
 
 	dmaengine_slave_config(dd->dma_lch_in.chan, &dd->dma_lch_in.dma_conf);
 
@@ -529,7 +535,7 @@ static int atmel_sha_update_dma_slow(struct atmel_sha_dev *dd)
 	if (final)
 		atmel_sha_fill_padding(ctx, 0);
 
-	if (final || (ctx->bufcnt == ctx->buflen && ctx->total)) {
+	if (final || (ctx->bufcnt == ctx->buflen)) {
 		count = ctx->bufcnt;
 		ctx->bufcnt = 0;
 		return atmel_sha_xmit_dma_map(dd, ctx, count, final);
@@ -1266,6 +1272,12 @@ static void atmel_sha_get_cap(struct atmel_sha_dev *dd)
 
 	/* keep only major version number */
 	switch (dd->hw_version & 0xff0) {
+	case 0x420:
+		dd->caps.has_dma = 1;
+		dd->caps.has_dualbuff = 1;
+		dd->caps.has_sha224 = 1;
+		dd->caps.has_sha_384_512 = 1;
+		break;
 	case 0x410:
 		dd->caps.has_dma = 1;
 		dd->caps.has_dualbuff = 1;
@@ -1349,6 +1361,7 @@ static int atmel_sha_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, sha_dd);
 
 	INIT_LIST_HEAD(&sha_dd->list);
+	spin_lock_init(&sha_dd->lock);
 
 	tasklet_init(&sha_dd->done_task, atmel_sha_done_task,
 					(unsigned long)sha_dd);
@@ -1385,7 +1398,7 @@ static int atmel_sha_probe(struct platform_device *pdev)
 	/* Initializing the clock */
 	sha_dd->iclk = clk_get(&pdev->dev, "sha_clk");
 	if (IS_ERR(sha_dd->iclk)) {
-		dev_err(dev, "clock intialization failed.\n");
+		dev_err(dev, "clock initialization failed.\n");
 		err = PTR_ERR(sha_dd->iclk);
 		goto clk_err;
 	}