Commit 8692b047 authored by Eugen Hristev's avatar Eugen Hristev Committed by Greg Kroah-Hartman
Browse files

staging: wilc1000: look for rtc_clk clock 



If rtc_clk is provided from DT, use it and enable it.
This is optional.
The signal may be hardcoded and no need to be requested,
but if DT provides it, use it.

Signed-off-by: default avatarEugen Hristev <eugen.hristev@microchip.com>
Acked-by: default avatarAjay Singh <ajay.kathat@microchip.com>
Link: https://lore.kernel.org/r/1568037993-4646-2-git-send-email-eugen.hristev@microchip.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ae8779e1

drivers/staging/wilc1000/wilc_sdio.c

+14 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
 * All rights reserved.

 */



#include <linux/clk.h>

#include <linux/mmc/sdio_func.h>

#include <linux/mmc/host.h>
@@ -151,6 +152,12 @@ static int wilc_sdio_probe(struct sdio_func *func, 
	wilc->dev = &func->dev;

	wilc->gpio_irq = gpio;



	wilc->rtc_clk = devm_clk_get(&func->card->dev, "rtc_clk");

	if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER)

		return -EPROBE_DEFER;

	else if (!IS_ERR(wilc->rtc_clk))

		clk_prepare_enable(wilc->rtc_clk);



	dev_info(&func->dev, "Driver Initializing success\n");

	return 0;

}
@@ -162,6 +169,10 @@ static void wilc_sdio_remove(struct sdio_func *func) 
	/* free the GPIO in module remove */

	if (wilc->gpio_irq)

		gpiod_put(wilc->gpio_irq);



	if (!IS_ERR(wilc->rtc_clk))

		clk_disable_unprepare(wilc->rtc_clk);



	wilc_netdev_cleanup(wilc);

}
@@ -193,6 +204,9 @@ static int wilc_sdio_suspend(struct device *dev) 
	dev_info(dev, "sdio suspend\n");

	chip_wakeup(wilc);



	if (!IS_ERR(wilc->rtc_clk))

		clk_disable_unprepare(wilc->rtc_clk);



	if (wilc->suspend_event) {

		host_sleep_notify(wilc);

		chip_allow_sleep(wilc);

drivers/staging/wilc1000/wilc_wfi_netdevice.h

+1 −0
Original line number Diff line number Diff line
@@ -216,6 +216,7 @@ struct wilc { 
	int io_type;

	s8 mac_status;

	struct gpio_desc *gpio_irq;

	struct clk *rtc_clk;

	bool initialized;

	int dev_irq_num;

	int close;

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