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authorLinus Torvalds <torvalds@linux-foundation.org>2017-03-15 19:26:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-03-15 19:26:04 +0300
commitdefc7d752265c2d8d212aee9fb499243260883e9 (patch)
tree8a6f1bfd8dc5c38ab350f96e08abe5a34e8d73ec /drivers/char
parentae50dfd61665086e617cc9e554a1285d52765670 (diff)
parent28b62b1458685d8f68f67d9b2d511bf8fa32b746 (diff)
downloadlinux-defc7d752265c2d8d212aee9fb499243260883e9.tar.xz
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: - self-test failure of crc32c on powerpc - regressions of ecb(aes) when used with xts/lrw in s5p-sss - a number of bugs in the omap RNG driver * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: s5p-sss - Fix spinlock recursion on LRW(AES) hwrng: omap - Do not access INTMASK_REG on EIP76 hwrng: omap - use devm_clk_get() instead of of_clk_get() hwrng: omap - write registers after enabling the clock crypto: s5p-sss - Fix completing crypto request in IRQ handler crypto: powerpc - Fix initialisation of crc32c context
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/hw_random/omap-rng.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 3ad86fdf954e..b1ad12552b56 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -397,9 +397,8 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,
irq, err);
return err;
}
- omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK);
- priv->clk = of_clk_get(pdev->dev.of_node, 0);
+ priv->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(priv->clk) && PTR_ERR(priv->clk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (!IS_ERR(priv->clk)) {
@@ -408,6 +407,19 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,
dev_err(&pdev->dev, "unable to enable the clk, "
"err = %d\n", err);
}
+
+ /*
+ * On OMAP4, enabling the shutdown_oflo interrupt is
+ * done in the interrupt mask register. There is no
+ * such register on EIP76, and it's enabled by the
+ * same bit in the control register
+ */
+ if (priv->pdata->regs[RNG_INTMASK_REG])
+ omap_rng_write(priv, RNG_INTMASK_REG,
+ RNG_SHUTDOWN_OFLO_MASK);
+ else
+ omap_rng_write(priv, RNG_CONTROL_REG,
+ RNG_SHUTDOWN_OFLO_MASK);
}
return 0;
}