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mailbox: rockchip: add get properties helper

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This helper will be responsible for reading and parsing our
properties. No functional changes in this patch, cleanup only.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Change-Id: I8476a5f4d3e78f90d9749fd949ff5287eb400558
This commit is contained in:
Frank Wang
2025-10-09 17:35:29 +08:00
committed by Tao Huang
parent 8fee3005f3
commit c5d3bacad7
1 changed files with 64 additions and 55 deletions
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119
drivers/mailbox/rockchip-mailbox.c
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@@ -381,6 +381,69 @@ static const struct of_device_id rockchip_mbox_of_match[] = {
};
MODULE_DEVICE_TABLE(of, rockchip_mbox_of_match);
static void rockchip_mbox_get_properties(struct rockchip_mbox *mb,
const struct rockchip_mbox_data *drv_data)
{
struct device *dev = mb->mbox.dev;
u32 txpoll_period;
int ret;
if (device_property_present(dev, "rockchip,tx-direction-b2a"))
mb->reg = &drv_data->reg_b2a;
else
mb->reg = &drv_data->reg_a2b;
/*
* rockchip,txdone-ack: the mailbox client uses its own ACK to check
* TX_DONE, and call mbox_client_txdone() API to schedule tx_tick.
* rockchip,txdone-irq: the feature only support from RK3506, the ISR
* function call mbox_chan_txdone() API to schedule tx_tick.
* txdone_poll is default for all the platform, it cooperates with
* "rockchip,txpoll-period-ms" or "rockchip,txpoll-period-us"
* periodically call last_tx_done() to check TX_DONE by the hrtimer
* in mailbox framework.
*/
if (device_property_present(dev, "rockchip,txdone-ack")) {
mb->mbox.txdone_irq = false;
mb->mbox.txdone_poll = false;
} else if (device_property_present(dev, "rockchip,txdone-irq")) {
mb->mbox.txdone_irq = true;
} else {
mb->mbox.txdone_poll = true;
if (IS_REACHABLE(CONFIG_MAILBOX_POLL_PERIOD_US)) {
ret = device_property_read_u32(dev,
"rockchip,txpoll-period-us",
&txpoll_period);
if (!ret) {
mb->mbox.txpoll_period = txpoll_period;
} else {
ret = device_property_read_u32(dev,
"rockchip,txpoll-period-ms",
&txpoll_period);
mb->mbox.txpoll_period = !ret ? txpoll_period : MAILBOX_POLLING_MS;
mb->mbox.txpoll_period *= 1000U; /* Convert to us */
}
} else {
ret = device_property_read_u32(dev,
"rockchip,txpoll-period-ms",
&txpoll_period);
mb->mbox.txpoll_period = !ret ? txpoll_period : MAILBOX_POLLING_MS;
}
}
if (device_property_present(dev, "rockchip,enable-cmd-trigger"))
mb->trigger_method = 0;
else
mb->trigger_method = 1;
if (drv_data->version != MAILBOX_VERSION_1_0_0)
mb->version = FIELD_GET(MAILBOX_V2_VERSION_MASK,
readl_relaxed(mb->mbox_base + MAILBOX_V2_VERSION));
if (!mb->version)
mb->version = drv_data->version;
}
static int rockchip_mbox_probe(struct platform_device *pdev)
{
struct rockchip_mbox *mb;
@@ -388,7 +451,6 @@ static int rockchip_mbox_probe(struct platform_device *pdev)
const struct rockchip_mbox_data *drv_data;
struct resource *res;
int ret, irq, i;
u32 txpoll_period;
if (!pdev->dev.of_node)
return -ENODEV;
@@ -422,54 +484,6 @@ static int rockchip_mbox_probe(struct platform_device *pdev)
mb->mbox.ops = drv_data->ops;
spin_lock_init(&mb->cfg_lock);
if (device_property_present(&pdev->dev, "rockchip,tx-direction-b2a"))
mb->reg = &drv_data->reg_b2a;
else
mb->reg = &drv_data->reg_a2b;
/*
* rockchip,txdone-ack: the mailbox client uses its own ACK to check
* TX_DONE, and call mbox_client_txdone() API to schedule tx_tick.
* rockchip,txdone-irq: the feature only support from RK3506, the ISR
* function call mbox_chan_txdone() API to schedule tx_tick.
* txdone_poll is default for all the platform, it cooperates with
* "rockchip,txpoll-period-ms" or "rockchip,txpoll-period-us"
* periodically call last_tx_done() to check TX_DONE by the hrtimer
* in mailbox framework.
*/
if (device_property_present(&pdev->dev, "rockchip,txdone-ack")) {
mb->mbox.txdone_irq = false;
mb->mbox.txdone_poll = false;
} else if (device_property_present(&pdev->dev, "rockchip,txdone-irq")) {
mb->mbox.txdone_irq = true;
} else {
mb->mbox.txdone_poll = true;
if (IS_REACHABLE(CONFIG_MAILBOX_POLL_PERIOD_US)) {
ret = device_property_read_u32(&pdev->dev,
"rockchip,txpoll-period-us",
&txpoll_period);
if (!ret) {
mb->mbox.txpoll_period = txpoll_period;
} else {
ret = device_property_read_u32(&pdev->dev,
"rockchip,txpoll-period-ms",
&txpoll_period);
mb->mbox.txpoll_period = !ret ? txpoll_period : MAILBOX_POLLING_MS;
mb->mbox.txpoll_period *= 1000U; /* Convert to us */
}
} else {
ret = device_property_read_u32(&pdev->dev,
"rockchip,txpoll-period-ms",
&txpoll_period);
mb->mbox.txpoll_period = !ret ? txpoll_period : MAILBOX_POLLING_MS;
}
}
if (device_property_present(&pdev->dev, "rockchip,enable-cmd-trigger"))
mb->trigger_method = 0;
else
mb->trigger_method = 1;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
@@ -478,12 +492,7 @@ static int rockchip_mbox_probe(struct platform_device *pdev)
if (IS_ERR(mb->mbox_base))
return PTR_ERR(mb->mbox_base);
if (drv_data->version != MAILBOX_VERSION_1_0_0)
mb->version = FIELD_GET(MAILBOX_V2_VERSION_MASK,
readl_relaxed(mb->mbox_base + MAILBOX_V2_VERSION));
if (!mb->version)
mb->version = drv_data->version;
rockchip_mbox_get_properties(mb, drv_data);
mb->pclk = devm_clk_get(&pdev->dev, "pclk_mailbox");
if (IS_ERR(mb->pclk)) {