diff options
| author | Bibby Hsieh <bibby.hsieh@mediatek.com> | 2019-11-21 04:54:09 +0300 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2020-01-08 14:59:57 +0300 |
| commit | d412f18c9bc791d8951e903de9a68817e3098a6a (patch) | |
| tree | a7792b8f91e05b00034be5c47c49646886a9088e /include/linux/soc/mediatek | |
| parent | b2ff2356bf93d66e7155acea63dcd503aca6c28f (diff) | |
| download | linux-d412f18c9bc791d8951e903de9a68817e3098a6a.tar.xz | |
soc: mediatek: cmdq: add cmdq_dev_get_client_reg function
GCE cannot know the register base address, this function
can help cmdq client to get the cmdq_client_reg structure.
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Reviewed-by: Houlong Wei <houlong.wei@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'include/linux/soc/mediatek')
| -rw-r--r-- | include/linux/soc/mediatek/mtk-cmdq.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 92bd5b5c6341..a74c1d5acdf3 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -15,6 +15,12 @@ struct cmdq_pkt; +struct cmdq_client_reg { + u8 subsys; + u16 offset; + u16 size; +}; + struct cmdq_client { spinlock_t lock; u32 pkt_cnt; @@ -25,6 +31,21 @@ struct cmdq_client { }; /** + * cmdq_dev_get_client_reg() - parse cmdq client reg from the device + * node of CMDQ client + * @dev: device of CMDQ mailbox client + * @client_reg: CMDQ client reg pointer + * @idx: the index of desired reg + * + * Return: 0 for success; else the error code is returned + * + * Help CMDQ client parsing the cmdq client reg + * from the device node of CMDQ client. + */ +int cmdq_dev_get_client_reg(struct device *dev, + struct cmdq_client_reg *client_reg, int idx); + +/** * cmdq_mbox_create() - create CMDQ mailbox client and channel * @dev: device of CMDQ mailbox client * @index: index of CMDQ mailbox channel |