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Commit e4120987 authored by Sameer Thalappil's avatar Sameer Thalappil Committed by Komal Seelam
Browse files

CNSS: Handle WLAN_EN GPIO for Applicable Platforms 



WLAN_EN GPIO is not available in MPQ8092 platform.
So control WLAN_EN GPIO based on the property (wlan-en-gpio)
defined in device tree.

Change-Id: I677c269825b76c50d745ceebf4eade3afd646fea
Signed-off-by: default avatarKomal Seelam <kseelam@codeaurora.org>
parent 5f4d31f2

drivers/net/wireless/cnss/cnss.c

+13 −0
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ struct cnss_wlan_gpio_info { 
	u32 num;

	bool state;

	bool init;

	bool prop;

};



struct cnss_wlan_vreg_info {
@@ -138,6 +139,9 @@ err_gpio_req: 


static void cnss_wlan_gpio_set(struct cnss_wlan_gpio_info *info, bool state)

{

	if (!info->prop)

		return;



	if (info->state == state) {

		pr_debug("Already %s gpio is %s\n",

			 info->name, state ? "high" : "low");
@@ -176,6 +180,12 @@ static int cnss_wlan_get_resources(struct platform_device *pdev) 
	}

	vreg_info->state = VREG_ON;



	if (!of_find_property((&pdev->dev)->of_node, gpio_info->name, NULL)) {

		gpio_info->prop = false;

		goto end;

	}



	gpio_info->prop = true;

	ret = of_get_named_gpio((&pdev->dev)->of_node,

				gpio_info->name, 0);
@@ -198,6 +208,7 @@ static int cnss_wlan_get_resources(struct platform_device *pdev) 
		goto err_gpio_init;

	}



end:

	return ret;



err_gpio_init:
@@ -221,6 +232,7 @@ static void cnss_wlan_release_resources(void) 
	gpio_free(gpio_info->num);

	regulator_put(vreg_info->wlan_reg);

	gpio_info->state = WLAN_EN_LOW;

	gpio_info->prop = false;

	vreg_info->state = VREG_OFF;

}
@@ -768,6 +780,7 @@ static int cnss_probe(struct platform_device *pdev) 
	penv->gpio_info.num = 0;

	penv->gpio_info.state = WLAN_EN_LOW;

	penv->gpio_info.init = WLAN_EN_HIGH;

	penv->gpio_info.prop = false;

	penv->vreg_info.wlan_reg = NULL;

	penv->vreg_info.state = VREG_OFF;