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drivers: serial: ns16550: Condition added for dma_callback

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Enable a condition as define dma_callback function only if
any one instance of ns16550 has dmas parameter in dts.
This resolves conflict of dma_callback function defined but
not used warning in case of UART_ASYNC_API enabled but dmas
parameter is not provided to any ns16550 UARTs dts instances.

Signed-off-by: Anisetti Avinash Krishna <anisetti.avinash.krishna@intel.com>
This commit is contained in:
Anisetti Avinash Krishna 2023-11-24 00:49:40 +05:30 • committed by Henrik Brix Andersen
commit e76ace4647
1 changed files with 5 additions and 0 deletions
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5
drivers/serial/uart_ns16550.c
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@ -45,6 +45,7 @@ LOG_MODULE_REGISTER(uart_ns16550, CONFIG_UART_LOG_LEVEL);
#define UART_NS16550_PCP_ENABLED DT_ANY_INST_HAS_PROP_STATUS_OKAY(pcp)
#define UART_NS16550_DLF_ENABLED DT_ANY_INST_HAS_PROP_STATUS_OKAY(dlf)
#define UART_NS16550_DMAS_ENABLED DT_ANY_INST_HAS_PROP_STATUS_OKAY(dmas)
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(pcie)
BUILD_ASSERT(IS_ENABLED(CONFIG_PCIE), "NS16550(s) in DT need CONFIG_PCIE");
@ -1402,6 +1403,7 @@ static void async_user_callback(const struct device *dev, struct uart_event *evt
}
}
#if UART_NS16550_DMAS_ENABLED
static void async_evt_tx_done(struct device *dev)
{
struct uart_ns16550_dev_data *data = dev->data;
@ -1420,6 +1422,7 @@ static void async_evt_tx_done(struct device *dev)
async_user_callback(dev, &event);
}
#endif
static void async_evt_rx_rdy(const struct device *dev)
{
@ -1535,6 +1538,7 @@ static void prepare_rx_dma_block_config(const struct device *dev)
head_block_config->block_size = rx_dma_params->buf_len;
}
#if UART_NS16550_DMAS_ENABLED
static void dma_callback(const struct device *dev, void *user_data, uint32_t channel,
int status)
{
@ -1568,6 +1572,7 @@ static void dma_callback(const struct device *dev, void *user_data, uint32_t cha
}
}
}
#endif
static int uart_ns16550_callback_set(const struct device *dev, uart_callback_t callback,
void *user_data)