diff options
| author | Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com> | 2020-07-07 18:45:08 +0300 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2020-09-25 18:27:32 +0300 |
| commit | 11c7842d41c82eb3551a0606ccba89ac33318b62 (patch) | |
| tree | 0a54bb31de4b56607156c459c397a4a5c79c345c /drivers/soc | |
| parent | 5f6e560c2dd5be3ae446f20ae97263cbfa309630 (diff) | |
| download | linux-11c7842d41c82eb3551a0606ccba89ac33318b62.tar.xz | |
soc: mediatek: cmdq: add write_s_mask function
add write_s_mask function in cmdq helper functions which
writes value contains in internal register to address
with mask and large dma access support.
Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-4-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/mediatek/mtk-cmdq-helper.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 880349b3f16c..550e9e7e3ff2 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -242,6 +242,29 @@ int cmdq_pkt_write_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, } EXPORT_SYMBOL(cmdq_pkt_write_s); +int cmdq_pkt_write_s_mask(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, + u16 addr_low, u16 src_reg_idx, u32 mask) +{ + struct cmdq_instruction inst = {}; + int err; + + inst.op = CMDQ_CODE_MASK; + inst.mask = ~mask; + err = cmdq_pkt_append_command(pkt, inst); + if (err < 0) + return err; + + inst.mask = 0; + inst.op = CMDQ_CODE_WRITE_S_MASK; + inst.src_t = CMDQ_REG_TYPE; + inst.sop = high_addr_reg_idx; + inst.offset = addr_low; + inst.src_reg = src_reg_idx; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_write_s_mask); + int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event) { struct cmdq_instruction inst = { {0} }; |