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wifi: wilc1000: use correct sequence of RESET for chip Power-UP/Down

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[ Upstream commit fcf690b0b47494df51d214db5c5a714a400b0257 ]

For power-up sequence, WILC expects RESET set to high 5ms after making
chip_en(enable) so corrected chip power-up sequence by making RESET high.
For Power-Down sequence, the correct sequence make RESET and CHIP_EN low
without any extra delay.

Fixes: ec031ac4792c ("wilc1000: Add reset/enable GPIO support to SPI driver")
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220524120606.9675-1-ajay.kathat@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ajay Singh 2022-05-24 12:06:19 +00:00 committed by Greg Kroah-Hartman
parent 72efb32be1
commit 24d7da5c97
1 changed files with 3 additions and 3 deletions
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6
drivers/net/wireless/microchip/wilc1000/spi.c
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@ -191,11 +191,11 @@ static void wilc_wlan_power(struct wilc *wilc, bool on)
/* assert ENABLE: */
gpiod_set_value(gpios->enable, 1);
mdelay(5);
/* deassert RESET: */
gpiod_set_value(gpios->reset, 0);
} else {
/* assert RESET: */
gpiod_set_value(gpios->reset, 1);
} else {
/* deassert RESET: */
gpiod_set_value(gpios->reset, 0);
/* deassert ENABLE: */
gpiod_set_value(gpios->enable, 0);
}