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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-17 09:33:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-17 09:33:39 -0700
commit9a07a7968407e20fe87ed6b5eb6a6000e4819492 (patch)
tree35bd04d937c731d8aad1768193ace3518f985965 /drivers/crypto/omap-sham.c
parent16490980e396fac079248b23b1dd81e7d48bebf3 (diff)
parent256b1cfb9a346bb4808cd27b7b8f9b120f96491e (diff)
downloadtalos-op-linux-9a07a7968407e20fe87ed6b5eb6a6000e4819492.tar.gz
talos-op-linux-9a07a7968407e20fe87ed6b5eb6a6000e4819492.zip
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu: "API: - Crypto self tests can now be disabled at boot/run time. - Add async support to algif_aead. Algorithms: - A large number of fixes to MPI from Nicolai Stange. - Performance improvement for HMAC DRBG. Drivers: - Use generic crypto engine in omap-des. - Merge ppc4xx-rng and crypto4xx drivers. - Fix lockups in sun4i-ss driver by disabling IRQs. - Add DMA engine support to ccp. - Reenable talitos hash algorithms. - Add support for Hisilicon SoC RNG. - Add basic crypto driver for the MXC SCC. Others: - Do not allocate crypto hash tfm in NORECLAIM context in ecryptfs" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits) crypto: qat - change the adf_ctl_stop_devices to void crypto: caam - fix caam_jr_alloc() ret code crypto: vmx - comply with ABIs that specify vrsave as reserved. crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime. crypto: ccp - constify ccp_actions structure crypto: marvell/cesa - Use dma_pool_zalloc crypto: qat - make adf_vf_isr.c dependant on IOV config crypto: qat - Fix typo in comments lib: asn1_decoder - add MODULE_LICENSE("GPL") crypto: omap-sham - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Use dma_request_chan() for requesting DMA channel crypto: omap-aes - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Integrate with the crypto engine framework crypto: s5p-sss - fix incorrect usage of scatterlists api crypto: s5p-sss - Fix missed interrupts when working with 8 kB blocks crypto: s5p-sss - Use common BIT macro crypto: mxc-scc - fix unwinding in mxc_scc_crypto_register() crypto: mxc-scc - signedness bugs in mxc_scc_ablkcipher_req_init() crypto: talitos - fix ahash algorithms registration crypto: ccp - Ensure all dependencies are specified ...
Diffstat (limited to 'drivers/crypto/omap-sham.c')
-rw-r--r--drivers/crypto/omap-sham.c25
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 48adb2a0903e..6eefaa2fe58f 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -29,7 +29,6 @@
#include <linux/scatterlist.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
-#include <linux/omap-dma.h>
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -219,7 +218,6 @@ struct omap_sham_dev {
int irq;
spinlock_t lock;
int err;
- unsigned int dma;
struct dma_chan *dma_lch;
struct tasklet_struct done_task;
u8 polling_mode;
@@ -1842,7 +1840,6 @@ static int omap_sham_get_res_of(struct omap_sham_dev *dd,
goto err;
}
- dd->dma = -1; /* Dummy value that's unused */
dd->pdata = match->data;
err:
@@ -1884,15 +1881,6 @@ static int omap_sham_get_res_pdev(struct omap_sham_dev *dd,
goto err;
}
- /* Get the DMA */
- r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!r) {
- dev_err(dev, "no DMA resource info\n");
- err = -ENODEV;
- goto err;
- }
- dd->dma = r->start;
-
/* Only OMAP2/3 can be non-DT */
dd->pdata = &omap_sham_pdata_omap2;
@@ -1946,9 +1934,12 @@ static int omap_sham_probe(struct platform_device *pdev)
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
- dd->dma_lch = dma_request_slave_channel_compat(mask, omap_dma_filter_fn,
- &dd->dma, dev, "rx");
- if (!dd->dma_lch) {
+ dd->dma_lch = dma_request_chan(dev, "rx");
+ if (IS_ERR(dd->dma_lch)) {
+ err = PTR_ERR(dd->dma_lch);
+ if (err == -EPROBE_DEFER)
+ goto data_err;
+
dd->polling_mode = 1;
dev_dbg(dev, "using polling mode instead of dma\n");
}
@@ -1995,7 +1986,7 @@ err_algs:
&dd->pdata->algs_info[i].algs_list[j]);
err_pm:
pm_runtime_disable(dev);
- if (dd->dma_lch)
+ if (dd->polling_mode)
dma_release_channel(dd->dma_lch);
data_err:
dev_err(dev, "initialization failed.\n");
@@ -2021,7 +2012,7 @@ static int omap_sham_remove(struct platform_device *pdev)
tasklet_kill(&dd->done_task);
pm_runtime_disable(&pdev->dev);
- if (dd->dma_lch)
+ if (!dd->polling_mode)
dma_release_channel(dd->dma_lch);
return 0;
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