diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2019-04-13 12:32:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-25 19:43:11 +0200 |
| commit | 9c4adfb5dc1326f94d3e212a8b5dfb238839b9ae (patch) | |
| tree | c3070ab54583aa7ea61c366800c926604a4a8a66 /drivers/nvmem/sunxi_sid.c | |
| parent | nvmem: imx-ocotp: broaden Kconfig dependency (diff) | |
| download | linux-9c4adfb5dc1326f94d3e212a8b5dfb238839b9ae.tar.xz linux-9c4adfb5dc1326f94d3e212a8b5dfb238839b9ae.zip | |
nvmem: sunxi_sid: Read out SID for randomness without looping
Since the reg_read callbacks already support arbitrary, but 4-byte
aligned. offsets and lengths into the SID, there is no need for another
for loop just to use it to read 1 byte at a time.
Read out the whole SID block in one go.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem/sunxi_sid.c')
| -rw-r--r-- | drivers/nvmem/sunxi_sid.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c index 570a2e354f30..704c35edf796 100644 --- a/drivers/nvmem/sunxi_sid.c +++ b/drivers/nvmem/sunxi_sid.c @@ -154,7 +154,7 @@ static int sunxi_sid_probe(struct platform_device *pdev) struct resource *res; struct nvmem_device *nvmem; struct sunxi_sid *sid; - int i, size; + int size; char *randomness; const struct sunxi_sid_cfg *cfg; @@ -189,8 +189,7 @@ static int sunxi_sid_probe(struct platform_device *pdev) if (!randomness) return -ENOMEM; - for (i = 0; i < size; i++) - econfig.reg_read(sid, i, &randomness[i], 1); + econfig.reg_read(sid, 0, randomness, size); add_device_randomness(randomness, size); kfree(randomness); |