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nvmem: sunxi_sid: fix A64 SID controller support 

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 <stefan@olimex.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20190818093345.29647-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
alistair/sunxi64-5.4-dsi
Stefan Mavrodiev 2019-08-18 10:33:41 +01:00 committed by Greg Kroah-Hartman
parent d93b5d4a21
commit 2ac00e34ac
1 changed files with 1 additions and 0 deletions
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drivers/nvmem/sunxi_sid.c
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@ -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 = {