From: Stefan Mavrodiev <ste...@olimex.com>

Like in H3, A64 SID controller doesn't return correct data
when using direct access. It appears that on A64, SID needs
8 bytes of word_size.

Workaround is to enable read by registers.

Signed-off-by: Stefan Mavrodiev <ste...@olimex.com>
Acked-by: Chen-Yu Tsai <w...@csie.org>
Tested-by: Vasily Khoruzhick <anars...@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
---
 drivers/nvmem/sunxi_sid.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
index a079a80ddf2c..e26ef1bbf198 100644
--- a/drivers/nvmem/sunxi_sid.c
+++ b/drivers/nvmem/sunxi_sid.c
@@ -186,6 +186,7 @@ static const struct sunxi_sid_cfg sun8i_h3_cfg = {
 static const struct sunxi_sid_cfg sun50i_a64_cfg = {
        .value_offset = 0x200,
        .size = 0x100,
+       .need_register_readout = true,
 };
 
 static const struct sunxi_sid_cfg sun50i_h6_cfg = {
-- 
2.21.0

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