diff mbox series

[2/3] scsi/ufs: qcom: Remove ufs_qcom_phy_*() calls from host

Message ID 20180904101719.18049-3-vivek.gautam@codeaurora.org (mailing list archive)
State Accepted
Headers show
Series scsi: ufs-qcom: Remove all direct calls to qcom-ufs phy | expand

Commit Message

Vivek Gautam Sept. 4, 2018, 10:17 a.m. UTC 
The host makes direct calls into phy using ufs_qcom_phy_*()
APIs. These APIs are only defined for 20nm qcom-ufs-qmp phy
which is not being used by any architecture as yet. Future
architectures too are not going to use 20nm ufs phy.
So remove these ufs_qcom_phy_*() calls from host to let further
change declare the 20nm phy as broken.
Also remove couple of stale enum defines for ufs phy.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
---
 drivers/phy/qualcomm/phy-qcom-ufs-i.h |  2 +-
 drivers/scsi/ufs/ufs-qcom.c           | 28 +---------------------------
 drivers/scsi/ufs/ufs-qcom.h           |  5 -----
 include/linux/phy/phy-qcom-ufs.h      | 24 ------------------------
 4 files changed, 2 insertions(+), 57 deletions(-)
 delete mode 100644 include/linux/phy/phy-qcom-ufs.h

Comments

Bjorn Andersson Sept. 24, 2018, 5:24 p.m. UTC | #1 
On Tue 04 Sep 03:17 PDT 2018, Vivek Gautam wrote:

> The host makes direct calls into phy using ufs_qcom_phy_*()
> APIs. These APIs are only defined for 20nm qcom-ufs-qmp phy
> which is not being used by any architecture as yet. Future
> architectures too are not going to use 20nm ufs phy.
> So remove these ufs_qcom_phy_*() calls from host to let further
> change declare the 20nm phy as broken.
> Also remove couple of stale enum defines for ufs phy.
> 
> Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

> ---
>  drivers/phy/qualcomm/phy-qcom-ufs-i.h |  2 +-
>  drivers/scsi/ufs/ufs-qcom.c           | 28 +---------------------------
>  drivers/scsi/ufs/ufs-qcom.h           |  5 -----
>  include/linux/phy/phy-qcom-ufs.h      | 24 ------------------------
>  4 files changed, 2 insertions(+), 57 deletions(-)
>  delete mode 100644 include/linux/phy/phy-qcom-ufs.h
> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-i.h b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> index 822c83b8efcd..681644e43248 100644
> --- a/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> +++ b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> @@ -17,9 +17,9 @@
>  
>  #include <linux/module.h>
>  #include <linux/clk.h>
> +#include <linux/phy/phy.h>
>  #include <linux/regulator/consumer.h>
>  #include <linux/slab.h>
> -#include <linux/phy/phy-qcom-ufs.h>
>  #include <linux/platform_device.h>
>  #include <linux/io.h>
>  #include <linux/delay.h>
> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
> index 75ee5906b966..3dc4501c6945 100644
> --- a/drivers/scsi/ufs/ufs-qcom.c
> +++ b/drivers/scsi/ufs/ufs-qcom.c
> @@ -16,7 +16,6 @@
>  #include <linux/of.h>
>  #include <linux/platform_device.h>
>  #include <linux/phy/phy.h>
> -#include <linux/phy/phy-qcom-ufs.h>
>  
>  #include "ufshcd.h"
>  #include "ufshcd-pltfrm.h"
> @@ -189,22 +188,9 @@ static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host)
>  
>  static int ufs_qcom_link_startup_post_change(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
> -	struct phy *phy = host->generic_phy;
>  	u32 tx_lanes;
> -	int err = 0;
> -
> -	err = ufs_qcom_get_connected_tx_lanes(hba, &tx_lanes);
> -	if (err)
> -		goto out;
>  
> -	err = ufs_qcom_phy_set_tx_lane_enable(phy, tx_lanes);
> -	if (err)
> -		dev_err(hba->dev, "%s: ufs_qcom_phy_set_tx_lane_enable failed\n",
> -			__func__);
> -
> -out:
> -	return err;
> +	return ufs_qcom_get_connected_tx_lanes(hba, &tx_lanes);
>  }
>  
>  static int ufs_qcom_check_hibern8(struct ufs_hba *hba)
> @@ -932,10 +918,8 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
>  {
>  	u32 val;
>  	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
> -	struct phy *phy = host->generic_phy;
>  	struct ufs_qcom_dev_params ufs_qcom_cap;
>  	int ret = 0;
> -	int res = 0;
>  
>  	if (!dev_req_params) {
>  		pr_err("%s: incoming dev_req_params is NULL\n", __func__);
> @@ -1002,12 +986,6 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
>  		}
>  
>  		val = ~(MAX_U32 << dev_req_params->lane_tx);
> -		res = ufs_qcom_phy_set_tx_lane_enable(phy, val);
> -		if (res) {
> -			dev_err(hba->dev, "%s: ufs_qcom_phy_set_tx_lane_enable() failed res = %d\n",
> -				__func__, res);
> -			ret = res;
> -		}
>  
>  		/* cache the power mode parameters to use internally */
>  		memcpy(&host->dev_req_params,
> @@ -1264,10 +1242,6 @@ static int ufs_qcom_init(struct ufs_hba *hba)
>  		}
>  	}
>  
> -	/* update phy revision information before calling phy_init() */
> -	ufs_qcom_phy_save_controller_version(host->generic_phy,
> -		host->hw_ver.major, host->hw_ver.minor, host->hw_ver.step);
> -
>  	err = ufs_qcom_init_lane_clks(host);
>  	if (err)
>  		goto out_variant_clear;
> diff --git a/drivers/scsi/ufs/ufs-qcom.h b/drivers/scsi/ufs/ufs-qcom.h
> index 295f4bef6a0e..c114826316eb 100644
> --- a/drivers/scsi/ufs/ufs-qcom.h
> +++ b/drivers/scsi/ufs/ufs-qcom.h
> @@ -129,11 +129,6 @@ enum {
>  	MASK_CLK_NS_REG                     = 0xFFFC00,
>  };
>  
> -enum ufs_qcom_phy_init_type {
> -	UFS_PHY_INIT_FULL,
> -	UFS_PHY_INIT_CFG_RESTORE,
> -};
> -
>  /* QCOM UFS debug print bit mask */
>  #define UFS_QCOM_DBG_PRINT_REGS_EN	BIT(0)
>  #define UFS_QCOM_DBG_PRINT_ICE_REGS_EN	BIT(1)
> diff --git a/include/linux/phy/phy-qcom-ufs.h b/include/linux/phy/phy-qcom-ufs.h
> deleted file mode 100644
> index 9dd85071bcce..000000000000
> --- a/include/linux/phy/phy-qcom-ufs.h
> +++ /dev/null
> @@ -1,24 +0,0 @@
> -/*
> - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License version 2 and
> - * only version 2 as published by the Free Software Foundation.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - */
> -
> -#ifndef PHY_QCOM_UFS_H_
> -#define PHY_QCOM_UFS_H_
> -
> -#include "phy.h"
> -
> -int ufs_qcom_phy_set_tx_lane_enable(struct phy *phy, u32 tx_lanes);
> -void ufs_qcom_phy_save_controller_version(struct phy *phy,
> -			u8 major, u16 minor, u16 step);
> -
> -#endif /* PHY_QCOM_UFS_H_ */
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
>
Vivek Gautam Sept. 25, 2018, 9:52 a.m. UTC | #2 
Hi Martin,

On Mon, Sep 24, 2018 at 10:51 PM Bjorn Andersson
<bjorn.andersson@linaro.org> wrote:
>
> On Tue 04 Sep 03:17 PDT 2018, Vivek Gautam wrote:
>
> > The host makes direct calls into phy using ufs_qcom_phy_*()
> > APIs. These APIs are only defined for 20nm qcom-ufs-qmp phy
> > which is not being used by any architecture as yet. Future
> > architectures too are not going to use 20nm ufs phy.
> > So remove these ufs_qcom_phy_*() calls from host to let further
> > change declare the 20nm phy as broken.
> > Also remove couple of stale enum defines for ufs phy.
> >
> > Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
>
> Regards,
> Bjorn

Kishon is looking to pick this series through linux-phy tree.
Will you please consider giving your ack for this patch? Thanks.

Best regards
Vivek

>
> > ---
> >  drivers/phy/qualcomm/phy-qcom-ufs-i.h |  2 +-
> >  drivers/scsi/ufs/ufs-qcom.c           | 28 +---------------------------
> >  drivers/scsi/ufs/ufs-qcom.h           |  5 -----
> >  include/linux/phy/phy-qcom-ufs.h      | 24 ------------------------
> >  4 files changed, 2 insertions(+), 57 deletions(-)
> >  delete mode 100644 include/linux/phy/phy-qcom-ufs.h
> >
> > diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-i.h b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> > index 822c83b8efcd..681644e43248 100644
> > --- a/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> > +++ b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> > @@ -17,9 +17,9 @@
> >
> >  #include <linux/module.h>
> >  #include <linux/clk.h>
> > +#include <linux/phy/phy.h>
> >  #include <linux/regulator/consumer.h>
> >  #include <linux/slab.h>
> > -#include <linux/phy/phy-qcom-ufs.h>
> >  #include <linux/platform_device.h>
> >  #include <linux/io.h>
> >  #include <linux/delay.h>
> > diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
> > index 75ee5906b966..3dc4501c6945 100644
> > --- a/drivers/scsi/ufs/ufs-qcom.c
> > +++ b/drivers/scsi/ufs/ufs-qcom.c
> > @@ -16,7 +16,6 @@
> >  #include <linux/of.h>
> >  #include <linux/platform_device.h>
> >  #include <linux/phy/phy.h>
> > -#include <linux/phy/phy-qcom-ufs.h>
> >
> >  #include "ufshcd.h"
> >  #include "ufshcd-pltfrm.h"
> > @@ -189,22 +188,9 @@ static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host)
> >
> >  static int ufs_qcom_link_startup_post_change(struct ufs_hba *hba)
> >  {
> > -     struct ufs_qcom_host *host = ufshcd_get_variant(hba);
> > -     struct phy *phy = host->generic_phy;
> >       u32 tx_lanes;
> > -     int err = 0;
> > -
> > -     err = ufs_qcom_get_connected_tx_lanes(hba, &tx_lanes);
> > -     if (err)
> > -             goto out;
> >
> > -     err = ufs_qcom_phy_set_tx_lane_enable(phy, tx_lanes);
> > -     if (err)
> > -             dev_err(hba->dev, "%s: ufs_qcom_phy_set_tx_lane_enable failed\n",
> > -                     __func__);
> > -
> > -out:
> > -     return err;
> > +     return ufs_qcom_get_connected_tx_lanes(hba, &tx_lanes);
> >  }
> >
> >  static int ufs_qcom_check_hibern8(struct ufs_hba *hba)
> > @@ -932,10 +918,8 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
> >  {
> >       u32 val;
> >       struct ufs_qcom_host *host = ufshcd_get_variant(hba);
> > -     struct phy *phy = host->generic_phy;
> >       struct ufs_qcom_dev_params ufs_qcom_cap;
> >       int ret = 0;
> > -     int res = 0;
> >
> >       if (!dev_req_params) {
> >               pr_err("%s: incoming dev_req_params is NULL\n", __func__);
> > @@ -1002,12 +986,6 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
> >               }
> >
> >               val = ~(MAX_U32 << dev_req_params->lane_tx);
> > -             res = ufs_qcom_phy_set_tx_lane_enable(phy, val);
> > -             if (res) {
> > -                     dev_err(hba->dev, "%s: ufs_qcom_phy_set_tx_lane_enable() failed res = %d\n",
> > -                             __func__, res);
> > -                     ret = res;
> > -             }
> >
> >               /* cache the power mode parameters to use internally */
> >               memcpy(&host->dev_req_params,
> > @@ -1264,10 +1242,6 @@ static int ufs_qcom_init(struct ufs_hba *hba)
> >               }
> >       }
> >
> > -     /* update phy revision information before calling phy_init() */
> > -     ufs_qcom_phy_save_controller_version(host->generic_phy,
> > -             host->hw_ver.major, host->hw_ver.minor, host->hw_ver.step);
> > -
> >       err = ufs_qcom_init_lane_clks(host);
> >       if (err)
> >               goto out_variant_clear;
> > diff --git a/drivers/scsi/ufs/ufs-qcom.h b/drivers/scsi/ufs/ufs-qcom.h
> > index 295f4bef6a0e..c114826316eb 100644
> > --- a/drivers/scsi/ufs/ufs-qcom.h
> > +++ b/drivers/scsi/ufs/ufs-qcom.h
> > @@ -129,11 +129,6 @@ enum {
> >       MASK_CLK_NS_REG                     = 0xFFFC00,
> >  };
> >
> > -enum ufs_qcom_phy_init_type {
> > -     UFS_PHY_INIT_FULL,
> > -     UFS_PHY_INIT_CFG_RESTORE,
> > -};
> > -
> >  /* QCOM UFS debug print bit mask */
> >  #define UFS_QCOM_DBG_PRINT_REGS_EN   BIT(0)
> >  #define UFS_QCOM_DBG_PRINT_ICE_REGS_EN       BIT(1)
> > diff --git a/include/linux/phy/phy-qcom-ufs.h b/include/linux/phy/phy-qcom-ufs.h
> > deleted file mode 100644
> > index 9dd85071bcce..000000000000
> > --- a/include/linux/phy/phy-qcom-ufs.h
> > +++ /dev/null
> > @@ -1,24 +0,0 @@
> > -/*
> > - * Copyright (c) 2013-2015, Linux Foundation. All rights reserved.
> > - *
> > - * This program is free software; you can redistribute it and/or modify
> > - * it under the terms of the GNU General Public License version 2 and
> > - * only version 2 as published by the Free Software Foundation.
> > - *
> > - * This program is distributed in the hope that it will be useful,
> > - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > - * GNU General Public License for more details.
> > - *
> > - */
> > -
> > -#ifndef PHY_QCOM_UFS_H_
> > -#define PHY_QCOM_UFS_H_
> > -
> > -#include "phy.h"
> > -
> > -int ufs_qcom_phy_set_tx_lane_enable(struct phy *phy, u32 tx_lanes);
> > -void ufs_qcom_phy_save_controller_version(struct phy *phy,
> > -                     u8 major, u16 minor, u16 step);
> > -
> > -#endif /* PHY_QCOM_UFS_H_ */
> > --
> > QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> > of Code Aurora Forum, hosted by The Linux Foundation
> >
Martin K. Petersen Sept. 26, 2018, 12:28 a.m. UTC | #3 
Vivek,

> Kishon is looking to pick this series through linux-phy tree.
> Will you please consider giving your ack for this patch? Thanks.

Looks fine.

Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Vivek Gautam Sept. 26, 2018, 6:14 a.m. UTC | #4 
On Wed, Sep 26, 2018 at 5:59 AM Martin K. Petersen
<martin.petersen@oracle.com> wrote:
>
>
> Vivek,
>
> > Kishon is looking to pick this series through linux-phy tree.
> > Will you please consider giving your ack for this patch? Thanks.
>
> Looks fine.
>
> Acked-by: Martin K. Petersen <martin.petersen@oracle.com>

Thanks Martin.

Best regards
Vivek
>
> --
> Martin K. Petersen      Oracle Linux Engineering
diff mbox series

Patch

diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-i.h b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
index 822c83b8efcd..681644e43248 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs-i.h
+++ b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
@@ -17,9 +17,9 @@ 
 
 #include <linux/module.h>
 #include <linux/clk.h>
+#include <linux/phy/phy.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
-#include <linux/phy/phy-qcom-ufs.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/delay.h>
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 75ee5906b966..3dc4501c6945 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -16,7 +16,6 @@ 
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/phy/phy.h>
-#include <linux/phy/phy-qcom-ufs.h>
 
 #include "ufshcd.h"
 #include "ufshcd-pltfrm.h"
@@ -189,22 +188,9 @@  static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host)
 
 static int ufs_qcom_link_startup_post_change(struct ufs_hba *hba)
 {
-	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	struct phy *phy = host->generic_phy;
 	u32 tx_lanes;
-	int err = 0;
-
-	err = ufs_qcom_get_connected_tx_lanes(hba, &tx_lanes);
-	if (err)
-		goto out;
 
-	err = ufs_qcom_phy_set_tx_lane_enable(phy, tx_lanes);
-	if (err)
-		dev_err(hba->dev, "%s: ufs_qcom_phy_set_tx_lane_enable failed\n",
-			__func__);
-
-out:
-	return err;
+	return ufs_qcom_get_connected_tx_lanes(hba, &tx_lanes);
 }
 
 static int ufs_qcom_check_hibern8(struct ufs_hba *hba)
@@ -932,10 +918,8 @@  static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 {
 	u32 val;
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	struct phy *phy = host->generic_phy;
 	struct ufs_qcom_dev_params ufs_qcom_cap;
 	int ret = 0;
-	int res = 0;
 
 	if (!dev_req_params) {
 		pr_err("%s: incoming dev_req_params is NULL\n", __func__);
@@ -1002,12 +986,6 @@  static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 		}
 
 		val = ~(MAX_U32 << dev_req_params->lane_tx);
-		res = ufs_qcom_phy_set_tx_lane_enable(phy, val);
-		if (res) {
-			dev_err(hba->dev, "%s: ufs_qcom_phy_set_tx_lane_enable() failed res = %d\n",
-				__func__, res);
-			ret = res;
-		}
 
 		/* cache the power mode parameters to use internally */
 		memcpy(&host->dev_req_params,
@@ -1264,10 +1242,6 @@  static int ufs_qcom_init(struct ufs_hba *hba)
 		}
 	}
 
-	/* update phy revision information before calling phy_init() */
-	ufs_qcom_phy_save_controller_version(host->generic_phy,
-		host->hw_ver.major, host->hw_ver.minor, host->hw_ver.step);
-
 	err = ufs_qcom_init_lane_clks(host);
 	if (err)
 		goto out_variant_clear;
diff --git a/drivers/scsi/ufs/ufs-qcom.h b/drivers/scsi/ufs/ufs-qcom.h
index 295f4bef6a0e..c114826316eb 100644
--- a/drivers/scsi/ufs/ufs-qcom.h
+++ b/drivers/scsi/ufs/ufs-qcom.h
@@ -129,11 +129,6 @@  enum {
 	MASK_CLK_NS_REG                     = 0xFFFC00,
 };
 
-enum ufs_qcom_phy_init_type {
-	UFS_PHY_INIT_FULL,
-	UFS_PHY_INIT_CFG_RESTORE,
-};
-
 /* QCOM UFS debug print bit mask */
 #define UFS_QCOM_DBG_PRINT_REGS_EN	BIT(0)
 #define UFS_QCOM_DBG_PRINT_ICE_REGS_EN	BIT(1)
diff --git a/include/linux/phy/phy-qcom-ufs.h b/include/linux/phy/phy-qcom-ufs.h
deleted file mode 100644
index 9dd85071bcce..000000000000
--- a/include/linux/phy/phy-qcom-ufs.h
+++ /dev/null
@@ -1,24 +0,0 @@ 
-/*
- * Copyright (c) 2013-2015, Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef PHY_QCOM_UFS_H_
-#define PHY_QCOM_UFS_H_
-
-#include "phy.h"
-
-int ufs_qcom_phy_set_tx_lane_enable(struct phy *phy, u32 tx_lanes);
-void ufs_qcom_phy_save_controller_version(struct phy *phy,
-			u8 major, u16 minor, u16 step);
-
-#endif /* PHY_QCOM_UFS_H_ */