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Commit 5c059efa authored by Hardik Kantilal Patel's avatar Hardik Kantilal Patel
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wcnss: LDO change for WCNSS 



Send LDO notification through SMD channel to FW which use
to update the pmic pam map.

CRs-Fixed: 660361
Change-Id: I00d62940f79ece9457e671788a94e3b4ac8ed2a7
Signed-off-by: default avatarHardik Kantilal Patel <hkpatel@codeaurora.org>
parent 7a941268

Documentation/devicetree/bindings/wcnss/wcnss-wlan.txt

+10 −0
Original line number Diff line number Diff line
@@ -39,6 +39,15 @@ using a smaller count for this buffer will reduce the memory usage. 
- qcom,is-pronto-vt: boolean flag to determine the pronto hardware version

in use. subsequently Pronto and IRIS voltage regulator range is configured

according to the ponto HW version

- qcom,wcnss-pm : <Core rail LDO#, PA rail LDO#, XO settling time,

		   RPM power collapse enabled, standalone power collapse enabled>

	Power manager related parameter for LDO configuration.

	11     -  WCN CORE rail LDO number

	21     -  WCN PA rail LDO number

	1200   -  WCN XO settling time (usec)

	1      -  WCN RPM power collapse enabled

	1      -  WCN standalone power collapse enabled





Example:
@@ -73,4 +82,5 @@ Example: 
        clocks = <&clock_rpm clk_xo_wlan_clk>,

                   <&clock_rpm clk_rf_clk2>;

        clock-names = "xo", "rf_clk";

	qcom,wcnss-pm = <11 21 1200 1 1>;

    };

drivers/net/wireless/wcnss/wcnss_wlan.c

+51 −0
Original line number Diff line number Diff line
@@ -185,6 +185,7 @@ static DEFINE_SPINLOCK(reg_spinlock); 
#define	WCNSS_VBATT_LEVEL_IND         (WCNSS_CTRL_MSG_START + 8)

#define	WCNSS_BUILD_VER_REQ           (WCNSS_CTRL_MSG_START + 9)

#define	WCNSS_BUILD_VER_RSP           (WCNSS_CTRL_MSG_START + 10)

#define	WCNSS_PM_CONFIG_REQ           (WCNSS_CTRL_MSG_START + 11)



/* max 20mhz channel count */

#define WCNSS_MAX_CH_NUM			45
@@ -350,6 +351,7 @@ static struct { 
	struct delayed_work wcnss_work;

	struct delayed_work vbatt_work;

	struct work_struct wcnssctrl_version_work;

	struct work_struct wcnss_pm_config_work;

	struct work_struct wcnssctrl_nvbin_dnld_work;

	struct work_struct wcnssctrl_rx_work;

	struct wake_lock wcnss_wake_lock;
@@ -920,6 +922,7 @@ static void wcnss_smd_notify_event(void *data, unsigned int event) 
		pr_debug("wcnss: opening WCNSS SMD channel :%s",

				WCNSS_CTRL_CHANNEL);

		schedule_work(&penv->wcnssctrl_version_work);

		schedule_work(&penv->wcnss_pm_config_work);



		break;
@@ -1831,6 +1834,53 @@ static void wcnss_send_version_req(struct work_struct *worker) 
	return;

}



static void wcnss_send_pm_config(struct work_struct *worker)

{

	struct smd_msg_hdr *hdr;

	unsigned char *msg = NULL;

	int rc, prop_len;

	u32 *payload;



	if (!of_find_property(penv->pdev->dev.of_node,

			"qcom,wcnss-pm", &prop_len))

		return;



	msg = kmalloc((sizeof(struct smd_msg_hdr) + prop_len), GFP_KERNEL);



	if (NULL == msg) {

		pr_err("wcnss: %s: failed to allocate memory\n", __func__);

		return;

	}



	payload = (u32 *)(msg + sizeof(struct smd_msg_hdr));



	prop_len /= sizeof(int);



	rc = of_property_read_u32_array(penv->pdev->dev.of_node,

			"qcom,wcnss-pm", payload, prop_len);

	if (rc < 0) {

		pr_err("wcnss: property read failed\n");

		kfree(msg);

		return;

	}



	pr_debug("%s:size=%d: <%d, %d, %d, %d, %d>\n", __func__,

			prop_len, *payload, *(payload+1), *(payload+2),

			*(payload+3), *(payload+4));



	hdr = (struct smd_msg_hdr *)msg;

	hdr->msg_type = WCNSS_PM_CONFIG_REQ;

	hdr->msg_len = sizeof(struct smd_msg_hdr) + prop_len;



	rc = wcnss_smd_tx(msg, hdr->msg_len);

	if (rc < 0)

		pr_err("wcnss: smd tx failed\n");



	kfree(msg);

	return;

}





static DECLARE_RWSEM(wcnss_pm_sem);



static void wcnss_nvbin_dnld(void)
@@ -2258,6 +2308,7 @@ wcnss_trigger_config(struct platform_device *pdev) 
	}

	INIT_WORK(&penv->wcnssctrl_rx_work, wcnssctrl_rx_handler);

	INIT_WORK(&penv->wcnssctrl_version_work, wcnss_send_version_req);

	INIT_WORK(&penv->wcnss_pm_config_work, wcnss_send_pm_config);

	INIT_WORK(&penv->wcnssctrl_nvbin_dnld_work, wcnss_nvbin_dnld_main);



	wake_lock_init(&penv->wcnss_wake_lock, WAKE_LOCK_SUSPEND, "wcnss");