diff options
| author | Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com> | 2020-07-07 18:45:09 +0300 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2020-09-25 18:27:34 +0300 |
| commit | d3b04aab06fbc33ddea15725f3ff1667c9717929 (patch) | |
| tree | cd9560e836070ade38f6a9b02ec51256aa39e2ea /drivers/soc/mediatek | |
| parent | 11c7842d41c82eb3551a0606ccba89ac33318b62 (diff) | |
| download | linux-d3b04aab06fbc33ddea15725f3ff1667c9717929.tar.xz | |
soc: mediatek: cmdq: add read_s function
Add read_s function in cmdq helper functions which support read value from
register or dma physical address into gce internal register.
Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-5-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'drivers/soc/mediatek')
| -rw-r--r-- | drivers/soc/mediatek/mtk-cmdq-helper.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 550e9e7e3ff2..ed9f5e63c195 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -227,6 +227,21 @@ int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys, } EXPORT_SYMBOL(cmdq_pkt_write_mask); +int cmdq_pkt_read_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, u16 addr_low, + u16 reg_idx) +{ + struct cmdq_instruction inst = {}; + + inst.op = CMDQ_CODE_READ_S; + inst.dst_t = CMDQ_REG_TYPE; + inst.sop = high_addr_reg_idx; + inst.reg_dst = reg_idx; + inst.src_reg = addr_low; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_read_s); + int cmdq_pkt_write_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, u16 addr_low, u16 src_reg_idx) { |