openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

serial: 8250: 8250_omap: Fix unused variable warning 

With commit 439c7183e5 ("serial: 8250: 8250_omap: Disable RX interrupt after DMA enable"),
below warning is seen with W=1 and CONFIG_SERIAL_8250_DMA is disabled:

   drivers/tty/serial/8250/8250_omap.c:1199:42: warning: unused variable 'k3_soc_devices' [-Wunused-const-variable]

Fix this by moving the code using k3_soc_devices array to
omap_serial_fill_features_erratas() that handles other errata flags as
well.

Fixes: 439c7183e5 ("serial: 8250: 8250_omap: Disable RX interrupt after DMA enable")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20201111112653.2710-2-vigneshr@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vignesh Raghavendra 2020-11-11 16:56:53 +05:30 committed by Greg Kroah-Hartman
parent d4548b14dd
commit 6f99185041
1 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/tty/serial/8250/8250_omap.c
View File

@ -539,6 +539,11 @@ static void omap_8250_pm(struct uart_port *port, unsigned int state,
static void omap_serial_fill_features_erratas(struct uart_8250_port *up,
struct omap8250_priv *priv)
{
const struct soc_device_attribute k3_soc_devices[] = {
{ .family = "AM65X", },
{ .family = "J721E", .revision = "SR1.0" },
{ /* sentinel */ }
};
u32 mvr, scheme;
u16 revision, major, minor;
@ -586,6 +591,14 @@ static void omap_serial_fill_features_erratas(struct uart_8250_port *up,
default:
break;
}
/*
* AM65x SR1.0, AM65x SR2.0 and J721e SR1.0 don't
* don't have RHR_IT_DIS bit in IER2 register. So drop to flag
* to enable errata workaround.
*/
if (soc_device_match(k3_soc_devices))
priv->habit &= ~UART_HAS_RHR_IT_DIS;
}
static void omap8250_uart_qos_work(struct work_struct *work)
@ -1196,12 +1209,6 @@ static int omap8250_no_handle_irq(struct uart_port *port)
return 0;
}
static const struct soc_device_attribute k3_soc_devices[] = {
{ .family = "AM65X", },
{ .family = "J721E", .revision = "SR1.0" },
{ /* sentinel */ }
};
static struct omap8250_dma_params am654_dma = {
.rx_size = SZ_2K,
.rx_trigger = 1,
@ -1406,13 +1413,6 @@ static int omap8250_probe(struct platform_device *pdev)
up.dma->rxconf.src_maxburst = RX_TRIGGER;
up.dma->txconf.dst_maxburst = TX_TRIGGER;
}
/*
* AM65x SR1.0, AM65x SR2.0 and J721e SR1.0 don't
* don't have RHR_IT_DIS bit in IER2 register
*/
if (soc_device_match(k3_soc_devices))
priv->habit &= ~UART_HAS_RHR_IT_DIS;
}
#endif
ret = serial8250_register_8250_port(&up);