[PATCH tty-next] MIPS: ath79: Remove one of the identical args in early_printk

From: Ilpo Järvinen
Date: Mon Jul 04 2022 - 08:52:14 EST


prom_putchar_wait() inputs both mask and val but the callers always set
them to the same value. Thus pass only val.

Suggested-by: Jiri Slaby <jirislaby@xxxxxxxxxx>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>

---
This patch applies only to tty-next that has another change this work is
based on.

arch/mips/ath79/early_printk.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/arch/mips/ath79/early_printk.c b/arch/mips/ath79/early_printk.c
index f6d02b425a10..34c4dfdf46b4 100644
--- a/arch/mips/ath79/early_printk.c
+++ b/arch/mips/ath79/early_printk.c
@@ -19,13 +19,13 @@

static void (*_prom_putchar)(char);

-static inline void prom_putchar_wait(void __iomem *reg, u32 mask, u32 val)
+static inline void prom_putchar_wait(void __iomem *reg, u32 val)
{
u32 t;

do {
t = __raw_readl(reg);
- if ((t & mask) == val)
+ if ((t & val) == val)
break;
} while (1);
}
@@ -34,23 +34,19 @@ static void prom_putchar_ar71xx(char ch)
{
void __iomem *base = (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE));

- prom_putchar_wait(base + UART_LSR * 4, UART_LSR_BOTH_EMPTY,
- UART_LSR_BOTH_EMPTY);
+ prom_putchar_wait(base + UART_LSR * 4, UART_LSR_BOTH_EMPTY);
__raw_writel((unsigned char)ch, base + UART_TX * 4);
- prom_putchar_wait(base + UART_LSR * 4, UART_LSR_BOTH_EMPTY,
- UART_LSR_BOTH_EMPTY);
+ prom_putchar_wait(base + UART_LSR * 4, UART_LSR_BOTH_EMPTY);
}

static void prom_putchar_ar933x(char ch)
{
void __iomem *base = (void __iomem *)(KSEG1ADDR(AR933X_UART_BASE));

- prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR,
- AR933X_UART_DATA_TX_CSR);
+ prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR);
__raw_writel(AR933X_UART_DATA_TX_CSR | (unsigned char)ch,
base + AR933X_UART_DATA_REG);
- prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR,
- AR933X_UART_DATA_TX_CSR);
+ prom_putchar_wait(base + AR933X_UART_DATA_REG, AR933X_UART_DATA_TX_CSR);
}

static void prom_putchar_dummy(char ch)

--
tg: (899e836bddb3..) cleanup/ath79-early-params (depends on: tty-next)