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authorJakub Kicinski <kuba@kernel.org>2021-09-30 14:49:21 -0700
committerJakub Kicinski <kuba@kernel.org>2021-09-30 14:49:21 -0700
commitdd9a887b35b01d7027f974f5e7936f1410ab51ca (patch)
tree4a827b3e88fd896de1408c26ebebc2535b14750a /drivers/scsi/ufs/ufshcd-pci.c
parentb05173028cc52384be42dcf81abdb4133caccfa5 (diff)
parent4de593fb965fc2bd11a0b767e0c65ff43540a6e4 (diff)
downloadlinux-dd9a887b35b01d7027f974f5e7936f1410ab51ca.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/phy/bcm7xxx.c d88fd1b546ff ("net: phy: bcm7xxx: Fixed indirect MMD operations") f68d08c437f9 ("net: phy: bcm7xxx: Add EPHY entry for 72165") net/sched/sch_api.c b193e15ac69d ("net: prevent user from passing illegal stab size") 69508d43334e ("net_sched: Use struct_size() and flex_array_size() helpers") Both cases trivial - adjacent code additions. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd-pci.c')
-rw-r--r--drivers/scsi/ufs/ufshcd-pci.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index b3bcc5c882da..149c1aa09103 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -128,6 +128,81 @@ static int ufs_intel_link_startup_notify(struct ufs_hba *hba,
return err;
}
+static int ufs_intel_set_lanes(struct ufs_hba *hba, u32 lanes)
+{
+ struct ufs_pa_layer_attr pwr_info = hba->pwr_info;
+ int ret;
+
+ pwr_info.lane_rx = lanes;
+ pwr_info.lane_tx = lanes;
+ ret = ufshcd_config_pwr_mode(hba, &pwr_info);
+ if (ret)
+ dev_err(hba->dev, "%s: Setting %u lanes, err = %d\n",
+ __func__, lanes, ret);
+ return ret;
+}
+
+static int ufs_intel_lkf_pwr_change_notify(struct ufs_hba *hba,
+ enum ufs_notify_change_status status,
+ struct ufs_pa_layer_attr *dev_max_params,
+ struct ufs_pa_layer_attr *dev_req_params)
+{
+ int err = 0;
+
+ switch (status) {
+ case PRE_CHANGE:
+ if (ufshcd_is_hs_mode(dev_max_params) &&
+ (hba->pwr_info.lane_rx != 2 || hba->pwr_info.lane_tx != 2))
+ ufs_intel_set_lanes(hba, 2);
+ memcpy(dev_req_params, dev_max_params, sizeof(*dev_req_params));
+ break;
+ case POST_CHANGE:
+ if (ufshcd_is_hs_mode(dev_req_params)) {
+ u32 peer_granularity;
+
+ usleep_range(1000, 1250);
+ err = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY),
+ &peer_granularity);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return err;
+}
+
+static int ufs_intel_lkf_apply_dev_quirks(struct ufs_hba *hba)
+{
+ u32 granularity, peer_granularity;
+ u32 pa_tactivate, peer_pa_tactivate;
+ int ret;
+
+ ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_GRANULARITY), &granularity);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY), &peer_granularity);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &pa_tactivate);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &peer_pa_tactivate);
+ if (ret)
+ goto out;
+
+ if (granularity == peer_granularity) {
+ u32 new_peer_pa_tactivate = pa_tactivate + 2;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(PA_TACTIVATE), new_peer_pa_tactivate);
+ }
+out:
+ return ret;
+}
+
#define INTEL_ACTIVELTR 0x804
#define INTEL_IDLELTR 0x808
@@ -351,6 +426,7 @@ static int ufs_intel_lkf_init(struct ufs_hba *hba)
struct ufs_host *ufs_host;
int err;
+ hba->nop_out_timeout = 200;
hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8;
hba->caps |= UFSHCD_CAP_CRYPTO;
err = ufs_intel_common_init(hba);
@@ -381,6 +457,8 @@ static struct ufs_hba_variant_ops ufs_intel_lkf_hba_vops = {
.exit = ufs_intel_common_exit,
.hce_enable_notify = ufs_intel_hce_enable_notify,
.link_startup_notify = ufs_intel_link_startup_notify,
+ .pwr_change_notify = ufs_intel_lkf_pwr_change_notify,
+ .apply_dev_quirks = ufs_intel_lkf_apply_dev_quirks,
.resume = ufs_intel_resume,
.device_reset = ufs_intel_device_reset,
};