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authorChun-Kuang Hu <chunkuang.hu@kernel.org>2020-11-02 03:04:38 +0300
committerMatthias Brugger <matthias.bgg@gmail.com>2020-11-28 01:35:34 +0300
commita69dcdfc2dd21f86cb1f79f98fc94c52f96cff64 (patch)
treeea9db23c9e5b953ba14f6d47b50043f01928751e /drivers/soc/mediatek
parenta49d5e7a89d644a5c0ddc851be4bbf08614e6015 (diff)
downloadlinux-a69dcdfc2dd21f86cb1f79f98fc94c52f96cff64.tar.xz
soc / drm: mediatek: cmdq: Remove timeout handler in helper function
For each client driver, its timeout handler need to dump hardware register or its state machine information, and their way to detect timeout are also different, so remove timeout handler in helper function and let client driver implement its own timeout handler. Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Link: https://lore.kernel.org/r/20201102000438.29225-1-chunkuang.hu@kernel.org Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'drivers/soc/mediatek')
-rw-r--r--drivers/soc/mediatek/mtk-cmdq-helper.c41
1 files changed, 1 insertions, 40 deletions
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 505651b0d715..280d3bd9f675 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -70,14 +70,7 @@ int cmdq_dev_get_client_reg(struct device *dev,
}
EXPORT_SYMBOL(cmdq_dev_get_client_reg);
-static void cmdq_client_timeout(struct timer_list *t)
-{
- struct cmdq_client *client = from_timer(client, t, timer);
-
- dev_err(client->client.dev, "cmdq timeout!\n");
-}
-
-struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, u32 timeout)
+struct cmdq_client *cmdq_mbox_create(struct device *dev, int index)
{
struct cmdq_client *client;
@@ -85,12 +78,6 @@ struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, u32 timeout)
if (!client)
return (struct cmdq_client *)-ENOMEM;
- client->timeout_ms = timeout;
- if (timeout != CMDQ_NO_TIMEOUT) {
- spin_lock_init(&client->lock);
- timer_setup(&client->timer, cmdq_client_timeout, 0);
- }
- client->pkt_cnt = 0;
client->client.dev = dev;
client->client.tx_block = false;
client->client.knows_txdone = true;
@@ -112,11 +99,6 @@ EXPORT_SYMBOL(cmdq_mbox_create);
void cmdq_mbox_destroy(struct cmdq_client *client)
{
- if (client->timeout_ms != CMDQ_NO_TIMEOUT) {
- spin_lock(&client->lock);
- del_timer_sync(&client->timer);
- spin_unlock(&client->lock);
- }
mbox_free_channel(client->chan);
kfree(client);
}
@@ -449,18 +431,6 @@ static void cmdq_pkt_flush_async_cb(struct cmdq_cb_data data)
struct cmdq_task_cb *cb = &pkt->cb;
struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
- if (client->timeout_ms != CMDQ_NO_TIMEOUT) {
- unsigned long flags = 0;
-
- spin_lock_irqsave(&client->lock, flags);
- if (--client->pkt_cnt == 0)
- del_timer(&client->timer);
- else
- mod_timer(&client->timer, jiffies +
- msecs_to_jiffies(client->timeout_ms));
- spin_unlock_irqrestore(&client->lock, flags);
- }
-
dma_sync_single_for_cpu(client->chan->mbox->dev, pkt->pa_base,
pkt->cmd_buf_size, DMA_TO_DEVICE);
if (cb->cb) {
@@ -473,7 +443,6 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb,
void *data)
{
int err;
- unsigned long flags = 0;
struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
pkt->cb.cb = cb;
@@ -484,14 +453,6 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb,
dma_sync_single_for_device(client->chan->mbox->dev, pkt->pa_base,
pkt->cmd_buf_size, DMA_TO_DEVICE);
- if (client->timeout_ms != CMDQ_NO_TIMEOUT) {
- spin_lock_irqsave(&client->lock, flags);
- if (client->pkt_cnt++ == 0)
- mod_timer(&client->timer, jiffies +
- msecs_to_jiffies(client->timeout_ms));
- spin_unlock_irqrestore(&client->lock, flags);
- }
-
err = mbox_send_message(client->chan, pkt);
if (err < 0)
return err;