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Commit c6b2ae2e authored by Govind Singh's avatar Govind Singh Committed by Gerrit - the friendly Code Review server
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BACKPORT: ath10k: enable bus layer suspend/resume for WCN3990 



Register snoc bus layer suspend/resume PM ops and configure
the wakeup source(CE2) for the device.

Testing:
    Tested on WCN3990 HW.
    Tested FW: WLAN.HL.2.0-01192-QCAHLSWMTPLZ-1.

Signed-off-by: default avatarGovind Singh <govinds@codeaurora.org>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
[govinds@codeaurora.org: fix trivial merge conflicts]
Change-Id: I1116b98f82197a1ee28e094e3b1804aa50227e23
Git-commit: 185be1c66469b2c31bd3a0502b3cdf0e654f95eb
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/ath.git


Signed-off-by: default avatarGovind Singh <govinds@codeaurora.org>
parent cc6b1066

drivers/net/wireless/ath/ath10k/snoc.c

+45 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 


#define ATH10K_SNOC_RX_POST_RETRY_MS 50

#define CE_POLL_PIPE 4

#define ATH10K_SNOC_WAKE_IRQ 2



static char *const ce_name[] = {

	"WLAN_CE_0",
@@ -1038,6 +1039,46 @@ static int ath10k_snoc_hif_set_target_log_mode(struct ath10k *ar, 
	return ath10k_qmi_set_fw_log_mode(ar, fw_dbg_mode);

}



#ifdef CONFIG_PM

static int ath10k_snoc_hif_suspend(struct ath10k *ar)

{

	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);

	int ret;



	if (!device_may_wakeup(ar->dev))

		return -EPERM;



	ret = enable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line);

	if (ret) {

		ath10k_err(ar, "failed to enable wakeup irq :%d\n", ret);

		return ret;

	}



	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device suspended\n");



	return ret;

}



static int ath10k_snoc_hif_resume(struct ath10k *ar)

{

	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);

	int ret;



	if (!device_may_wakeup(ar->dev))

		return -EPERM;



	ret = disable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line);

	if (ret) {

		ath10k_err(ar, "failed to disable wakeup irq: %d\n", ret);

		return ret;

	}



	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device resumed\n");



	return ret;

}

#endif



static const struct ath10k_hif_ops ath10k_snoc_hif_ops = {

	.read32		= ath10k_snoc_read32,

	.write32	= ath10k_snoc_write32,
@@ -1052,6 +1093,10 @@ static const struct ath10k_hif_ops ath10k_snoc_hif_ops = { 
	.get_free_queue_number	= ath10k_snoc_hif_get_free_queue_number,

	.get_target_info	= ath10k_snoc_hif_get_target_info,

	.set_target_log_mode    = ath10k_snoc_hif_set_target_log_mode,

#ifdef CONFIG_PM

	.suspend                = ath10k_snoc_hif_suspend,

	.resume                 = ath10k_snoc_hif_resume,

#endif

};



static const struct ath10k_bus_ops ath10k_snoc_bus_ops = {