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authorKevin Hilman <khilman@linaro.org>2015-09-14 14:21:39 -0700
committerKevin Hilman <khilman@linaro.org>2015-09-14 14:21:39 -0700
commitf249a14dd1b6b341e7b5e29b64c0edae6e13b7f5 (patch)
treee5b53c75e42b5ac0d9b8feac65ce4b7a1b2a17bd /drivers/net/wireless/iwlwifi/pcie/trans.c
parent48cf795880b441a6c59cd840d0475fac7fdffd87 (diff)
parent0c5c1f1a4f991ee015da85cce6d2d9f9c9380b4f (diff)
Merge tag 'v4.1.7' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-linaro-lsk-v4.1lsk-v4.1-15.09
This is the 4.1.7 stable release * tag 'v4.1.7' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable: (165 commits) Linux 4.1.7 ARM: 8405/1: VDSO: fix regression with toolchains lacking ld.bfd executable x86/idle: Restore trace_cpu_idle to mwait_idle() calls x86/apic: Fix fallout from x2apic cleanup x86/xen: make CONFIG_XEN depend on CONFIG_X86_LOCAL_APIC arm64: perf: fix unassigned cpu_pmu->plat_device when probing PMU PPIs arm64: KVM: Fix host crash when injecting a fault into a 32bit guest fnic: Use the local variable instead of I/O flag to acquire io_req_lock in fnic_queuecommand() to avoid deadloack Add factory recertified Crucial M500s to blacklist can: pcan_usb: don't provide CAN FD bittimings by non-FD adapters SCSI: Fix NULL pointer dereference in runtime PM genirq: Introduce irq_chip_set_type_parent() helper genirq: Don't return ENOSYS in irq_chip_retrigger_hierarchy ARM: OMAP: wakeupgen: Restore the irq_set_type() mechanism irqchip/crossbar: Restore set_wake functionality irqchip/crossbar: Restore the mask on suspend behaviour irqchip/crossbar: Restore the irq_set_type() mechanism 9p: ensure err is initialized to 0 in p9_client_read/write drm/i915: Avoid TP3 on CHV drm/i915: remove HBR2 from chv supported list ...
Diffstat (limited to 'drivers/net/wireless/iwlwifi/pcie/trans.c')
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/trans.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 37e6a6f91487..699a4802835f 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -457,10 +457,16 @@ static void iwl_pcie_apm_stop(struct iwl_trans *trans, bool op_mode_leave)
if (trans->cfg->device_family == IWL_DEVICE_FAMILY_7000)
iwl_set_bits_prph(trans, APMG_PCIDEV_STT_REG,
APMG_PCIDEV_STT_VAL_WAKE_ME);
- else if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
+ else if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
+ iwl_set_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,
+ CSR_RESET_LINK_PWR_MGMT_DISABLED);
iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_PREPARE |
CSR_HW_IF_CONFIG_REG_ENABLE_PME);
+ mdelay(1);
+ iwl_clear_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,
+ CSR_RESET_LINK_PWR_MGMT_DISABLED);
+ }
mdelay(5);
}
@@ -555,6 +561,10 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
if (ret >= 0)
return 0;
+ iwl_set_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,
+ CSR_RESET_LINK_PWR_MGMT_DISABLED);
+ msleep(1);
+
for (iter = 0; iter < 10; iter++) {
/* If HW is not ready, prepare the conditions to check again */
iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
@@ -562,8 +572,10 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
do {
ret = iwl_pcie_set_hw_ready(trans);
- if (ret >= 0)
- return 0;
+ if (ret >= 0) {
+ ret = 0;
+ goto out;
+ }
usleep_range(200, 1000);
t += 200;
@@ -573,6 +585,10 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans)
IWL_ERR(trans, "Couldn't prepare the card\n");
+out:
+ iwl_clear_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,
+ CSR_RESET_LINK_PWR_MGMT_DISABLED);
+
return ret;
}