Messages in this thread Patch in this message | | | From | Chun-Kuang Hu <> | Subject | [PATCH] soc: mediatek: cmdq: Remove unused helper funciton | Date | Sun, 19 Feb 2023 23:34:39 +0000 |
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cmdq_pkt_create(), cmdq_pkt_destroy(), and cmdq_pkt_flush_async() are not used by all client drivers (MediaTek drm driver and MediaTek mdp3 driver), so remove them.
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> --- drivers/soc/mediatek/mtk-cmdq-helper.c | 59 -------------------------- include/linux/soc/mediatek/mtk-cmdq.h | 28 ------------ 2 files changed, 87 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index c1837a468267..d4ab39236c79 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -104,50 +104,6 @@ void cmdq_mbox_destroy(struct cmdq_client *client) } EXPORT_SYMBOL(cmdq_mbox_destroy); -struct cmdq_pkt *cmdq_pkt_create(struct cmdq_client *client, size_t size) -{ - struct cmdq_pkt *pkt; - struct device *dev; - dma_addr_t dma_addr; - - pkt = kzalloc(sizeof(*pkt), GFP_KERNEL); - if (!pkt) - return ERR_PTR(-ENOMEM); - pkt->va_base = kzalloc(size, GFP_KERNEL); - if (!pkt->va_base) { - kfree(pkt); - return ERR_PTR(-ENOMEM); - } - pkt->buf_size = size; - pkt->cl = (void *)client; - - dev = client->chan->mbox->dev; - dma_addr = dma_map_single(dev, pkt->va_base, pkt->buf_size, - DMA_TO_DEVICE); - if (dma_mapping_error(dev, dma_addr)) { - dev_err(dev, "dma map failed, size=%u\n", (u32)(u64)size); - kfree(pkt->va_base); - kfree(pkt); - return ERR_PTR(-ENOMEM); - } - - pkt->pa_base = dma_addr; - - return pkt; -} -EXPORT_SYMBOL(cmdq_pkt_create); - -void cmdq_pkt_destroy(struct cmdq_pkt *pkt) -{ - struct cmdq_client *client = (struct cmdq_client *)pkt->cl; - - dma_unmap_single(client->chan->mbox->dev, pkt->pa_base, pkt->buf_size, - DMA_TO_DEVICE); - kfree(pkt->va_base); - kfree(pkt); -} -EXPORT_SYMBOL(cmdq_pkt_destroy); - static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, struct cmdq_instruction inst) { @@ -425,19 +381,4 @@ int cmdq_pkt_finalize(struct cmdq_pkt *pkt) } EXPORT_SYMBOL(cmdq_pkt_finalize); -int cmdq_pkt_flush_async(struct cmdq_pkt *pkt) -{ - int err; - struct cmdq_client *client = (struct cmdq_client *)pkt->cl; - - err = mbox_send_message(client->chan, pkt); - if (err < 0) - return err; - /* We can send next packet immediately, so just call txdone. */ - mbox_client_txdone(client->chan, 0); - - return 0; -} -EXPORT_SYMBOL(cmdq_pkt_flush_async); - MODULE_LICENSE("GPL v2"); diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 2b498f4f3946..60e4c0ca52a1 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -57,21 +57,6 @@ struct cmdq_client *cmdq_mbox_create(struct device *dev, int index); */ void cmdq_mbox_destroy(struct cmdq_client *client); -/** - * cmdq_pkt_create() - create a CMDQ packet - * @client: the CMDQ mailbox client - * @size: required CMDQ buffer size - * - * Return: CMDQ packet pointer - */ -struct cmdq_pkt *cmdq_pkt_create(struct cmdq_client *client, size_t size); - -/** - * cmdq_pkt_destroy() - destroy the CMDQ packet - * @pkt: the CMDQ packet - */ -void cmdq_pkt_destroy(struct cmdq_pkt *pkt); - /** * cmdq_pkt_write() - append write command to the CMDQ packet * @pkt: the CMDQ packet @@ -264,17 +249,4 @@ int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr); */ int cmdq_pkt_finalize(struct cmdq_pkt *pkt); -/** - * cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ - * packet and call back at the end of done packet - * @pkt: the CMDQ packet - * - * Return: 0 for success; else the error code is returned - * - * Trigger CMDQ to asynchronously execute the CMDQ packet and call back - * at the end of done packet. Note that this is an ASYNC function. When the - * function returned, it may or may not be finished. - */ -int cmdq_pkt_flush_async(struct cmdq_pkt *pkt); - #endif /* __MTK_CMDQ_H__ */ -- 2.34.1
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