From 595476cb67333e2498ee41de11ac37f05957062b Mon Sep 17 00:00:00 2001 From: Egil Hjelmeland Date: Thu, 21 Dec 2017 18:34:35 +0100 Subject: [PATCH] net: dsa: lan9303: lan9303_csr_reg_wait cleanups Non-functional cleanups in lan9303_csr_reg_wait(): - Change type of param 'mask' from int to u32. - Remove param 'value' (will probably never be used) - Reduced retries from 1000 to 25, consistent with lan9303_read_wait. - Removed comments Signed-off-by: Egil Hjelmeland Changes v1 -> v2: - Removed comments Signed-off-by: David S. Miller --- drivers/net/dsa/lan9303-core.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c index f412aad..944901f 100644 --- a/drivers/net/dsa/lan9303-core.c +++ b/drivers/net/dsa/lan9303-core.c @@ -249,7 +249,6 @@ static int lan9303_read(struct regmap *regmap, unsigned int offset, u32 *reg) return -EIO; } -/* Wait a while until mask & reg == value. Otherwise return timeout. */ static int lan9303_read_wait(struct lan9303 *chip, int offset, u32 mask) { int i; @@ -541,20 +540,19 @@ lan9303_alr_cache_find_mac(struct lan9303 *chip, const u8 *mac_addr) return NULL; } -/* Wait a while until mask & reg == value. Otherwise return timeout. */ -static int lan9303_csr_reg_wait(struct lan9303 *chip, int regno, - int mask, char value) +static int lan9303_csr_reg_wait(struct lan9303 *chip, int regno, u32 mask) { int i; - for (i = 0; i < 0x1000; i++) { + for (i = 0; i < 25; i++) { u32 reg; lan9303_read_switch_reg(chip, regno, ®); - if ((reg & mask) == value) + if (!(reg & mask)) return 0; usleep_range(1000, 2000); } + return -ETIMEDOUT; } @@ -564,8 +562,7 @@ static int lan9303_alr_make_entry_raw(struct lan9303 *chip, u32 dat0, u32 dat1) lan9303_write_switch_reg(chip, LAN9303_SWE_ALR_WR_DAT_1, dat1); lan9303_write_switch_reg(chip, LAN9303_SWE_ALR_CMD, LAN9303_ALR_CMD_MAKE_ENTRY); - lan9303_csr_reg_wait(chip, LAN9303_SWE_ALR_CMD_STS, ALR_STS_MAKE_PEND, - 0); + lan9303_csr_reg_wait(chip, LAN9303_SWE_ALR_CMD_STS, ALR_STS_MAKE_PEND); lan9303_write_switch_reg(chip, LAN9303_SWE_ALR_CMD, 0); return 0; -- 2.7.4