Subject: [PATCH/RFC] OMAP2: serial.c: Fix number of uarts in early_init
The omap_serial_early_init prints the following errors:
Could not get uart4_ick
Could not get uart4_fck
because all the uarts available in omap_uart[] will be initialized.
Only omap4430 and omap3630 have 4 uarts at the moment.
This patch reduces the number of uarts when cpu is not omap4430 or
omap3630.
Signed-off-by: Thomas Weber <weber@xxxxxxxxxxxxx>
---
arch/arm/mach-omap2/serial.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index b79bc89..da77930 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -644,16 +644,21 @@ static void serial_out_override(struct uart_port *up, int offset, int value)
}
void __init omap_serial_early_init(void)
{
- int i;
+ int i, nr_ports;
char name[16];
+ if (!(cpu_is_omap3630() || cpu_is_omap4430()))
+ nr_ports = 3;
+ else
+ nr_ports = ARRAY_SIZE(omap_uart);
+
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on
* if not needed.
*/
- for (i = 0; i < ARRAY_SIZE(omap_uart); i++) {
+ for (i = 0; i < nr_ports; i++) {
struct omap_uart_state *uart = &omap_uart[i];
struct platform_device *pdev = &uart->pdev;
struct device *dev = &pdev->dev;
@@ -669,17 +674,17 @@ void __init omap_serial_early_init(void)
continue;
}
- sprintf(name, "uart%d_ick", i+1);
+ sprintf(name, "uart%d_ick", i + 1);
uart->ick = clk_get(NULL, name);
if (IS_ERR(uart->ick)) {
- printk(KERN_ERR "Could not get uart%d_ick\n", i+1);
+ printk(KERN_ERR "Could not get uart%d_ick\n", i + 1);
uart->ick = NULL;
}
sprintf(name, "uart%d_fck", i+1);
uart->fck = clk_get(NULL, name);
if (IS_ERR(uart->fck)) {
- printk(KERN_ERR "Could not get uart%d_fck\n", i+1);
+ printk(KERN_ERR "Could not get uart%d_fck\n", i + 1);
uart->fck = NULL;
}
--
1.6.4.4
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