[PATCH v4 0/5] support secondary ufs for Exynos Auto v9 SoC

[PATCH v4 0/5] support secondary ufs for Exynos Auto v9 SoC

[Chanho Park]

To support ufs #1 for Exynos Auto v9 SoC, we need to control its own pmu
register. So, we need to specify the offset of the register via an
argument of syscon node.

Changes from v3:
- 0003: Apply array of const pointers and const data as suggested
  by Krzysztof
- Add Krzysztof's RB tags to all patches except 0003 patch.

Changes from v2:
- Exclude dts patchset because they'll be queued by Krzysztof after
  v5.19 merge window.
- 0001-dt-bindings: Add "maxItems: 1" to the first level pmu-syscon
  items as suggested by Krzysztof
- 0002: The patch has been added to clarify the variable name
- 0004: The patch has been added to remove drvdata pointer as suggested
  by Krzysztof

Changes from v1:
- dt-bindings: Correct tab align and add "minItems: 1" to make the second
  cell as optional.
- Add 0001- patch to constify phy_cfg.
- Allocate phy->isol and copy data from drvdata to avoid const qualifier
  error
- Add 0004- patch to apply dt style for ufs0 as Krzysztof's suggestion
- Align tab and apply ufs node naming for device tree nodes

Chanho Park (5):
  dt-bindings: phy: samsung,ufs-phy: make pmu-syscon as phandle-array
  phy: samsung: ufs: rename cfg to cfgs for clarification
  phy: samsung: ufs: constify samsung_ufs_phy_cfg
  phy: samsung: ufs: remove drvdata from struct samsung_ufs_phy
  phy: samsung: ufs: support secondary ufs phy

 .../bindings/phy/samsung,ufs-phy.yaml         | 14 ++++++++---
 drivers/phy/samsung/phy-exynos7-ufs.c         |  2 +-
 drivers/phy/samsung/phy-exynosautov9-ufs.c    |  2 +-
 drivers/phy/samsung/phy-samsung-ufs.c         | 18 ++++++++++-----
 drivers/phy/samsung/phy-samsung-ufs.h         | 23 +++++++++++--------
 5 files changed, 38 insertions(+), 21 deletions(-)

-- 
2.36.1


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[PATCH v4 1/5] dt-bindings: phy: samsung,ufs-phy: make pmu-syscon as phandle-array

[Chanho Park]

To support secondary ufs phy devices, we need to get an offset value
from pmu-syscon.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 .../devicetree/bindings/phy/samsung,ufs-phy.yaml   | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
index f6ed1a005e7a..17897a3b5c9e 100644
--- a/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
@@ -40,9 +40,17 @@ properties:
       - const: tx0_symbol_clk
 
   samsung,pmu-syscon:
-    $ref: '/schemas/types.yaml#/definitions/phandle'
-    description: phandle for PMU system controller interface, used to
-                 control pmu registers bits for ufs m-phy
+    $ref: '/schemas/types.yaml#/definitions/phandle-array'
+    maxItems: 1
+    items:
+      minItems: 1
+      items:
+        - description: phandle for PMU system controller interface, used to
+                       control pmu registers bits for ufs m-phy
+        - description: offset of the pmu control register
+    description:
+      It can be phandle/offset pair. The second cell which can represent an
+      offset is optional.
 
 required:
   - "#phy-cells"
-- 
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[PATCH v4 2/5] phy: samsung: ufs: rename cfg to cfgs for clarification

[Chanho Park]

Rename **cfg to **cfgs to clarify the naming.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/phy/samsung/phy-exynos7-ufs.c      | 2 +-
 drivers/phy/samsung/phy-exynosautov9-ufs.c | 2 +-
 drivers/phy/samsung/phy-samsung-ufs.c      | 4 ++--
 drivers/phy/samsung/phy-samsung-ufs.h      | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/phy/samsung/phy-exynos7-ufs.c b/drivers/phy/samsung/phy-exynos7-ufs.c
index 7c9008e163db..d1e9d0ae5c1d 100644
--- a/drivers/phy/samsung/phy-exynos7-ufs.c
+++ b/drivers/phy/samsung/phy-exynos7-ufs.c
@@ -67,7 +67,7 @@ static const struct samsung_ufs_phy_cfg *exynos7_ufs_phy_cfgs[CFG_TAG_MAX] = {
 };
 
 const struct samsung_ufs_phy_drvdata exynos7_ufs_phy = {
-	.cfg = exynos7_ufs_phy_cfgs,
+	.cfgs = exynos7_ufs_phy_cfgs,
 	.isol = {
 		.offset = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL,
 		.mask = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK,
diff --git a/drivers/phy/samsung/phy-exynosautov9-ufs.c b/drivers/phy/samsung/phy-exynosautov9-ufs.c
index d043dfdb598a..fa4d2983eec6 100644
--- a/drivers/phy/samsung/phy-exynosautov9-ufs.c
+++ b/drivers/phy/samsung/phy-exynosautov9-ufs.c
@@ -57,7 +57,7 @@ static const struct samsung_ufs_phy_cfg *exynosautov9_ufs_phy_cfgs[CFG_TAG_MAX]
 };
 
 const struct samsung_ufs_phy_drvdata exynosautov9_ufs_phy = {
-	.cfg = exynosautov9_ufs_phy_cfgs,
+	.cfgs = exynosautov9_ufs_phy_cfgs,
 	.isol = {
 		.offset = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL,
 		.mask = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_MASK,
diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index 602ddef259eb..ed272631e8aa 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -75,7 +75,7 @@ static int samsung_ufs_phy_wait_for_lock_acq(struct phy *phy)
 static int samsung_ufs_phy_calibrate(struct phy *phy)
 {
 	struct samsung_ufs_phy *ufs_phy = get_samsung_ufs_phy(phy);
-	struct samsung_ufs_phy_cfg **cfgs = ufs_phy->cfg;
+	struct samsung_ufs_phy_cfg **cfgs = ufs_phy->cfgs;
 	const struct samsung_ufs_phy_cfg *cfg;
 	int err = 0;
 	int i;
@@ -327,7 +327,7 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
 	drvdata = match->data;
 	phy->dev = dev;
 	phy->drvdata = drvdata;
-	phy->cfg = (struct samsung_ufs_phy_cfg **)drvdata->cfg;
+	phy->cfgs = (struct samsung_ufs_phy_cfg **)drvdata->cfgs;
 	phy->isol = &drvdata->isol;
 	phy->lane_cnt = PHY_DEF_LANE_CNT;
 
diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h
index 91a0e9f94f98..1788b356cf56 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.h
+++ b/drivers/phy/samsung/phy-samsung-ufs.h
@@ -102,7 +102,7 @@ struct samsung_ufs_phy_cfg {
 };
 
 struct samsung_ufs_phy_drvdata {
-	const struct samsung_ufs_phy_cfg **cfg;
+	const struct samsung_ufs_phy_cfg **cfgs;
 	struct pmu_isol {
 		u32 offset;
 		u32 mask;
@@ -121,7 +121,7 @@ struct samsung_ufs_phy {
 	struct clk *rx0_symbol_clk;
 	struct clk *rx1_symbol_clk;
 	const struct samsung_ufs_phy_drvdata *drvdata;
-	struct samsung_ufs_phy_cfg **cfg;
+	struct samsung_ufs_phy_cfg **cfgs;
 	const struct pmu_isol *isol;
 	u8 lane_cnt;
 	int ufs_phy_state;
-- 
2.36.1


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RE: [PATCH v4 2/5] phy: samsung: ufs: rename cfg to cfgs for clarification

[Alim Akhtar]

>-----Original Message-----
>From: Chanho Park [mailto:chanho61.park@samsung.com]
>Sent: Tuesday, June 7, 2022 12:59 PM
>To: Kishon Vijay Abraham I <kishon@ti.com>; Vinod Koul
><vkoul@kernel.org>; Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>;
>Alim Akhtar <alim.akhtar@samsung.com>; Rob Herring
><robh+dt@kernel.org>; Krzysztof Kozlowski
><krzysztof.kozlowski+dt@linaro.org>
>Cc: devicetree@vger.kernel.org; linux-phy@lists.infradead.org; linux-
>samsung-soc@vger.kernel.org; linux-arm-kernel@lists.infradead.org; Chanho
>Park <chanho61.park@samsung.com>
>Subject: [PATCH v4 2/5] phy: samsung: ufs: rename cfg to cfgs for clarification
>
>Rename **cfg to **cfgs to clarify the naming.
>
>Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>Signed-off-by: Chanho Park <chanho61.park@samsung.com>
>---

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>

> drivers/phy/samsung/phy-exynos7-ufs.c      | 2 +-
> drivers/phy/samsung/phy-exynosautov9-ufs.c | 2 +-
> drivers/phy/samsung/phy-samsung-ufs.c      | 4 ++--
> drivers/phy/samsung/phy-samsung-ufs.h      | 4 ++--
> 4 files changed, 6 insertions(+), 6 deletions(-)
>
>diff --git a/drivers/phy/samsung/phy-exynos7-ufs.c
>b/drivers/phy/samsung/phy-exynos7-ufs.c
>index 7c9008e163db..d1e9d0ae5c1d 100644
>--- a/drivers/phy/samsung/phy-exynos7-ufs.c
>+++ b/drivers/phy/samsung/phy-exynos7-ufs.c
>@@ -67,7 +67,7 @@ static const struct samsung_ufs_phy_cfg
>*exynos7_ufs_phy_cfgs[CFG_TAG_MAX] = {  };
>
> const struct samsung_ufs_phy_drvdata exynos7_ufs_phy = {
>-	.cfg = exynos7_ufs_phy_cfgs,
>+	.cfgs = exynos7_ufs_phy_cfgs,
> 	.isol = {
> 		.offset = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL,
> 		.mask = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK,
>diff --git a/drivers/phy/samsung/phy-exynosautov9-ufs.c
>b/drivers/phy/samsung/phy-exynosautov9-ufs.c
>index d043dfdb598a..fa4d2983eec6 100644
>--- a/drivers/phy/samsung/phy-exynosautov9-ufs.c
>+++ b/drivers/phy/samsung/phy-exynosautov9-ufs.c
>@@ -57,7 +57,7 @@ static const struct samsung_ufs_phy_cfg
>*exynosautov9_ufs_phy_cfgs[CFG_TAG_MAX]
> };
>
> const struct samsung_ufs_phy_drvdata exynosautov9_ufs_phy = {
>-	.cfg = exynosautov9_ufs_phy_cfgs,
>+	.cfgs = exynosautov9_ufs_phy_cfgs,
> 	.isol = {
> 		.offset = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL,
> 		.mask =
>EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_MASK,
>diff --git a/drivers/phy/samsung/phy-samsung-ufs.c
>b/drivers/phy/samsung/phy-samsung-ufs.c
>index 602ddef259eb..ed272631e8aa 100644
>--- a/drivers/phy/samsung/phy-samsung-ufs.c
>+++ b/drivers/phy/samsung/phy-samsung-ufs.c
>@@ -75,7 +75,7 @@ static int samsung_ufs_phy_wait_for_lock_acq(struct
>phy *phy)  static int samsung_ufs_phy_calibrate(struct phy *phy)  {
> 	struct samsung_ufs_phy *ufs_phy = get_samsung_ufs_phy(phy);
>-	struct samsung_ufs_phy_cfg **cfgs = ufs_phy->cfg;
>+	struct samsung_ufs_phy_cfg **cfgs = ufs_phy->cfgs;
> 	const struct samsung_ufs_phy_cfg *cfg;
> 	int err = 0;
> 	int i;
>@@ -327,7 +327,7 @@ static int samsung_ufs_phy_probe(struct
>platform_device *pdev)
> 	drvdata = match->data;
> 	phy->dev = dev;
> 	phy->drvdata = drvdata;
>-	phy->cfg = (struct samsung_ufs_phy_cfg **)drvdata->cfg;
>+	phy->cfgs = (struct samsung_ufs_phy_cfg **)drvdata->cfgs;
> 	phy->isol = &drvdata->isol;
> 	phy->lane_cnt = PHY_DEF_LANE_CNT;
>
>diff --git a/drivers/phy/samsung/phy-samsung-ufs.h
>b/drivers/phy/samsung/phy-samsung-ufs.h
>index 91a0e9f94f98..1788b356cf56 100644
>--- a/drivers/phy/samsung/phy-samsung-ufs.h
>+++ b/drivers/phy/samsung/phy-samsung-ufs.h
>@@ -102,7 +102,7 @@ struct samsung_ufs_phy_cfg {  };
>
> struct samsung_ufs_phy_drvdata {
>-	const struct samsung_ufs_phy_cfg **cfg;
>+	const struct samsung_ufs_phy_cfg **cfgs;
> 	struct pmu_isol {
> 		u32 offset;
> 		u32 mask;
>@@ -121,7 +121,7 @@ struct samsung_ufs_phy {
> 	struct clk *rx0_symbol_clk;
> 	struct clk *rx1_symbol_clk;
> 	const struct samsung_ufs_phy_drvdata *drvdata;
>-	struct samsung_ufs_phy_cfg **cfg;
>+	struct samsung_ufs_phy_cfg **cfgs;
> 	const struct pmu_isol *isol;
> 	u8 lane_cnt;
> 	int ufs_phy_state;
>--
>2.36.1



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[PATCH v4 3/5] phy: samsung: ufs: constify samsung_ufs_phy_cfg

[Chanho Park]

Put const qualifier of samsung_ufs_phy_cfg pointer because they will
not be changed from drvdata.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/phy/samsung/phy-samsung-ufs.c | 4 ++--
 drivers/phy/samsung/phy-samsung-ufs.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index ed272631e8aa..cd1c02d2cdda 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -75,7 +75,7 @@ static int samsung_ufs_phy_wait_for_lock_acq(struct phy *phy)
 static int samsung_ufs_phy_calibrate(struct phy *phy)
 {
 	struct samsung_ufs_phy *ufs_phy = get_samsung_ufs_phy(phy);
-	struct samsung_ufs_phy_cfg **cfgs = ufs_phy->cfgs;
+	const struct samsung_ufs_phy_cfg * const *cfgs = ufs_phy->cfgs;
 	const struct samsung_ufs_phy_cfg *cfg;
 	int err = 0;
 	int i;
@@ -327,7 +327,7 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
 	drvdata = match->data;
 	phy->dev = dev;
 	phy->drvdata = drvdata;
-	phy->cfgs = (struct samsung_ufs_phy_cfg **)drvdata->cfgs;
+	phy->cfgs = drvdata->cfgs;
 	phy->isol = &drvdata->isol;
 	phy->lane_cnt = PHY_DEF_LANE_CNT;
 
diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h
index 1788b356cf56..5cd919539a3e 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.h
+++ b/drivers/phy/samsung/phy-samsung-ufs.h
@@ -121,7 +121,7 @@ struct samsung_ufs_phy {
 	struct clk *rx0_symbol_clk;
 	struct clk *rx1_symbol_clk;
 	const struct samsung_ufs_phy_drvdata *drvdata;
-	struct samsung_ufs_phy_cfg **cfgs;
+	const struct samsung_ufs_phy_cfg * const *cfgs;
 	const struct pmu_isol *isol;
 	u8 lane_cnt;
 	int ufs_phy_state;
-- 
2.36.1


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Re: [PATCH v4 3/5] phy: samsung: ufs: constify samsung_ufs_phy_cfg

[Krzysztof Kozlowski]

On 07/06/2022 09:29, Chanho Park wrote:
> Put const qualifier of samsung_ufs_phy_cfg pointer because they will
> not be changed from drvdata.
> 
> Signed-off-by: Chanho Park <chanho61.park@samsung.com>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof

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RE: [PATCH v4 3/5] phy: samsung: ufs: constify samsung_ufs_phy_cfg

[Alim Akhtar]

>-----Original Message-----
>From: Chanho Park [mailto:chanho61.park@samsung.com]
>Sent: Tuesday, June 7, 2022 12:59 PM
>To: Kishon Vijay Abraham I <kishon@ti.com>; Vinod Koul
><vkoul@kernel.org>; Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>;
>Alim Akhtar <alim.akhtar@samsung.com>; Rob Herring
><robh+dt@kernel.org>; Krzysztof Kozlowski
><krzysztof.kozlowski+dt@linaro.org>
>Cc: devicetree@vger.kernel.org; linux-phy@lists.infradead.org; linux-
>samsung-soc@vger.kernel.org; linux-arm-kernel@lists.infradead.org; Chanho
>Park <chanho61.park@samsung.com>
>Subject: [PATCH v4 3/5] phy: samsung: ufs: constify samsung_ufs_phy_cfg
>
>Put const qualifier of samsung_ufs_phy_cfg pointer because they will not be
>changed from drvdata.
>
>Signed-off-by: Chanho Park <chanho61.park@samsung.com>
>---
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>

> drivers/phy/samsung/phy-samsung-ufs.c | 4 ++--  drivers/phy/samsung/phy-
>samsung-ufs.h | 2 +-
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/phy/samsung/phy-samsung-ufs.c
>b/drivers/phy/samsung/phy-samsung-ufs.c
>index ed272631e8aa..cd1c02d2cdda 100644
>--- a/drivers/phy/samsung/phy-samsung-ufs.c
>+++ b/drivers/phy/samsung/phy-samsung-ufs.c
>@@ -75,7 +75,7 @@ static int samsung_ufs_phy_wait_for_lock_acq(struct
>phy *phy)  static int samsung_ufs_phy_calibrate(struct phy *phy)  {
> 	struct samsung_ufs_phy *ufs_phy = get_samsung_ufs_phy(phy);
>-	struct samsung_ufs_phy_cfg **cfgs = ufs_phy->cfgs;
>+	const struct samsung_ufs_phy_cfg * const *cfgs = ufs_phy->cfgs;
> 	const struct samsung_ufs_phy_cfg *cfg;
> 	int err = 0;
> 	int i;
>@@ -327,7 +327,7 @@ static int samsung_ufs_phy_probe(struct
>platform_device *pdev)
> 	drvdata = match->data;
> 	phy->dev = dev;
> 	phy->drvdata = drvdata;
>-	phy->cfgs = (struct samsung_ufs_phy_cfg **)drvdata->cfgs;
>+	phy->cfgs = drvdata->cfgs;
> 	phy->isol = &drvdata->isol;
> 	phy->lane_cnt = PHY_DEF_LANE_CNT;
>
>diff --git a/drivers/phy/samsung/phy-samsung-ufs.h
>b/drivers/phy/samsung/phy-samsung-ufs.h
>index 1788b356cf56..5cd919539a3e 100644
>--- a/drivers/phy/samsung/phy-samsung-ufs.h
>+++ b/drivers/phy/samsung/phy-samsung-ufs.h
>@@ -121,7 +121,7 @@ struct samsung_ufs_phy {
> 	struct clk *rx0_symbol_clk;
> 	struct clk *rx1_symbol_clk;
> 	const struct samsung_ufs_phy_drvdata *drvdata;
>-	struct samsung_ufs_phy_cfg **cfgs;
>+	const struct samsung_ufs_phy_cfg * const *cfgs;
> 	const struct pmu_isol *isol;
> 	u8 lane_cnt;
> 	int ufs_phy_state;
>--
>2.36.1



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[PATCH v4 4/5] phy: samsung: ufs: remove drvdata from struct samsung_ufs_phy

[Chanho Park]

To change an offset of pmu_isol, we need to store its data instead of
having drvdata's pointer. The definition of the pmu_isol structure
should be extracted from samsung_ufs_phy_drvdata and rename the name
with samsung_ufs_phy_ prefix.

Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/phy/samsung/phy-samsung-ufs.c |  9 +++++----
 drivers/phy/samsung/phy-samsung-ufs.h | 19 +++++++++++--------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index cd1c02d2cdda..0c933e364064 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -207,7 +207,7 @@ static int samsung_ufs_phy_init(struct phy *phy)
 	ss_phy->lane_cnt = phy->attrs.bus_width;
 	ss_phy->ufs_phy_state = CFG_PRE_INIT;
 
-	if (ss_phy->drvdata->has_symbol_clk) {
+	if (ss_phy->has_symbol_clk) {
 		ret = samsung_ufs_phy_symbol_clk_init(ss_phy);
 		if (ret)
 			dev_err(ss_phy->dev, "failed to set ufs phy symbol clocks\n");
@@ -259,7 +259,7 @@ static int samsung_ufs_phy_exit(struct phy *phy)
 
 	clk_disable_unprepare(ss_phy->ref_clk);
 
-	if (ss_phy->drvdata->has_symbol_clk) {
+	if (ss_phy->has_symbol_clk) {
 		clk_disable_unprepare(ss_phy->tx0_symbol_clk);
 		clk_disable_unprepare(ss_phy->rx0_symbol_clk);
 		clk_disable_unprepare(ss_phy->rx1_symbol_clk);
@@ -326,9 +326,10 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
 
 	drvdata = match->data;
 	phy->dev = dev;
-	phy->drvdata = drvdata;
 	phy->cfgs = drvdata->cfgs;
-	phy->isol = &drvdata->isol;
+	phy->has_symbol_clk = drvdata->has_symbol_clk;
+	memcpy(&phy->isol, &drvdata->isol, sizeof(phy->isol));
+
 	phy->lane_cnt = PHY_DEF_LANE_CNT;
 
 	phy_set_drvdata(gen_phy, phy);
diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h
index 5cd919539a3e..854b53bdf347 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.h
+++ b/drivers/phy/samsung/phy-samsung-ufs.h
@@ -101,13 +101,15 @@ struct samsung_ufs_phy_cfg {
 	u8 id;
 };
 
+struct samsung_ufs_phy_pmu_isol {
+	u32 offset;
+	u32 mask;
+	u32 en;
+};
+
 struct samsung_ufs_phy_drvdata {
 	const struct samsung_ufs_phy_cfg **cfgs;
-	struct pmu_isol {
-		u32 offset;
-		u32 mask;
-		u32 en;
-	} isol;
+	struct samsung_ufs_phy_pmu_isol isol;
 	bool has_symbol_clk;
 };
 
@@ -122,7 +124,8 @@ struct samsung_ufs_phy {
 	struct clk *rx1_symbol_clk;
 	const struct samsung_ufs_phy_drvdata *drvdata;
 	const struct samsung_ufs_phy_cfg * const *cfgs;
-	const struct pmu_isol *isol;
+	struct samsung_ufs_phy_pmu_isol isol;
+	bool has_symbol_clk;
 	u8 lane_cnt;
 	int ufs_phy_state;
 	enum phy_mode mode;
@@ -136,8 +139,8 @@ static inline struct samsung_ufs_phy *get_samsung_ufs_phy(struct phy *phy)
 static inline void samsung_ufs_phy_ctrl_isol(
 		struct samsung_ufs_phy *phy, u32 isol)
 {
-	regmap_update_bits(phy->reg_pmu, phy->isol->offset,
-			   phy->isol->mask, isol ? 0 : phy->isol->en);
+	regmap_update_bits(phy->reg_pmu, phy->isol.offset,
+			   phy->isol.mask, isol ? 0 : phy->isol.en);
 }
 
 extern const struct samsung_ufs_phy_drvdata exynos7_ufs_phy;
-- 
2.36.1


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RE: [PATCH v4 4/5] phy: samsung: ufs: remove drvdata from struct samsung_ufs_phy

[Alim Akhtar]

>-----Original Message-----
>From: Chanho Park [mailto:chanho61.park@samsung.com]
>Sent: Tuesday, June 7, 2022 12:59 PM
>To: Kishon Vijay Abraham I <kishon@ti.com>; Vinod Koul
><vkoul@kernel.org>; Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>;
>Alim Akhtar <alim.akhtar@samsung.com>; Rob Herring
><robh+dt@kernel.org>; Krzysztof Kozlowski
><krzysztof.kozlowski+dt@linaro.org>
>Cc: devicetree@vger.kernel.org; linux-phy@lists.infradead.org; linux-
>samsung-soc@vger.kernel.org; linux-arm-kernel@lists.infradead.org; Chanho
>Park <chanho61.park@samsung.com>
>Subject: [PATCH v4 4/5] phy: samsung: ufs: remove drvdata from struct
>samsung_ufs_phy
>
>To change an offset of pmu_isol, we need to store its data instead of having
>drvdata's pointer. The definition of the pmu_isol structure should be
>extracted from samsung_ufs_phy_drvdata and rename the name with
>samsung_ufs_phy_ prefix.
>
>Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>Signed-off-by: Chanho Park <chanho61.park@samsung.com>
>---

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>


> drivers/phy/samsung/phy-samsung-ufs.c |  9 +++++----
>drivers/phy/samsung/phy-samsung-ufs.h | 19 +++++++++++--------
> 2 files changed, 16 insertions(+), 12 deletions(-)
>
>diff --git a/drivers/phy/samsung/phy-samsung-ufs.c
>b/drivers/phy/samsung/phy-samsung-ufs.c
>index cd1c02d2cdda..0c933e364064 100644
>--- a/drivers/phy/samsung/phy-samsung-ufs.c
>+++ b/drivers/phy/samsung/phy-samsung-ufs.c
>@@ -207,7 +207,7 @@ static int samsung_ufs_phy_init(struct phy *phy)
> 	ss_phy->lane_cnt = phy->attrs.bus_width;
> 	ss_phy->ufs_phy_state = CFG_PRE_INIT;
>
>-	if (ss_phy->drvdata->has_symbol_clk) {
>+	if (ss_phy->has_symbol_clk) {
> 		ret = samsung_ufs_phy_symbol_clk_init(ss_phy);
> 		if (ret)
> 			dev_err(ss_phy->dev, "failed to set ufs phy symbol
>clocks\n"); @@ -259,7 +259,7 @@ static int samsung_ufs_phy_exit(struct phy
>*phy)
>
> 	clk_disable_unprepare(ss_phy->ref_clk);
>
>-	if (ss_phy->drvdata->has_symbol_clk) {
>+	if (ss_phy->has_symbol_clk) {
> 		clk_disable_unprepare(ss_phy->tx0_symbol_clk);
> 		clk_disable_unprepare(ss_phy->rx0_symbol_clk);
> 		clk_disable_unprepare(ss_phy->rx1_symbol_clk);
>@@ -326,9 +326,10 @@ static int samsung_ufs_phy_probe(struct
>platform_device *pdev)
>
> 	drvdata = match->data;
> 	phy->dev = dev;
>-	phy->drvdata = drvdata;
> 	phy->cfgs = drvdata->cfgs;
>-	phy->isol = &drvdata->isol;
>+	phy->has_symbol_clk = drvdata->has_symbol_clk;
>+	memcpy(&phy->isol, &drvdata->isol, sizeof(phy->isol));
>+
> 	phy->lane_cnt = PHY_DEF_LANE_CNT;
>
> 	phy_set_drvdata(gen_phy, phy);
>diff --git a/drivers/phy/samsung/phy-samsung-ufs.h
>b/drivers/phy/samsung/phy-samsung-ufs.h
>index 5cd919539a3e..854b53bdf347 100644
>--- a/drivers/phy/samsung/phy-samsung-ufs.h
>+++ b/drivers/phy/samsung/phy-samsung-ufs.h
>@@ -101,13 +101,15 @@ struct samsung_ufs_phy_cfg {
> 	u8 id;
> };
>
>+struct samsung_ufs_phy_pmu_isol {
>+	u32 offset;
>+	u32 mask;
>+	u32 en;
>+};
>+
> struct samsung_ufs_phy_drvdata {
> 	const struct samsung_ufs_phy_cfg **cfgs;
>-	struct pmu_isol {
>-		u32 offset;
>-		u32 mask;
>-		u32 en;
>-	} isol;
>+	struct samsung_ufs_phy_pmu_isol isol;
> 	bool has_symbol_clk;
> };
>
>@@ -122,7 +124,8 @@ struct samsung_ufs_phy {
> 	struct clk *rx1_symbol_clk;
> 	const struct samsung_ufs_phy_drvdata *drvdata;
> 	const struct samsung_ufs_phy_cfg * const *cfgs;
>-	const struct pmu_isol *isol;
>+	struct samsung_ufs_phy_pmu_isol isol;
>+	bool has_symbol_clk;
> 	u8 lane_cnt;
> 	int ufs_phy_state;
> 	enum phy_mode mode;
>@@ -136,8 +139,8 @@ static inline struct samsung_ufs_phy
>*get_samsung_ufs_phy(struct phy *phy)  static inline void
>samsung_ufs_phy_ctrl_isol(
> 		struct samsung_ufs_phy *phy, u32 isol)  {
>-	regmap_update_bits(phy->reg_pmu, phy->isol->offset,
>-			   phy->isol->mask, isol ? 0 : phy->isol->en);
>+	regmap_update_bits(phy->reg_pmu, phy->isol.offset,
>+			   phy->isol.mask, isol ? 0 : phy->isol.en);
> }
>
> extern const struct samsung_ufs_phy_drvdata exynos7_ufs_phy;
>--
>2.36.1



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[PATCH v4 5/5] phy: samsung: ufs: support secondary ufs phy

[Chanho Park]

To support secondary ufs phy device, we need to get an offset for phy
isolation from the syscon DT node. If the first index argument of the
node is existing, we can read the offset value and set it as isol->offset.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/phy/samsung/phy-samsung-ufs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index 0c933e364064..206a79c69a6c 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -288,6 +288,7 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
 	struct phy *gen_phy;
 	struct phy_provider *phy_provider;
 	const struct samsung_ufs_phy_drvdata *drvdata;
+	u32 isol_offset;
 	int err = 0;
 
 	match = of_match_node(samsung_ufs_phy_match, dev->of_node);
@@ -330,6 +331,10 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
 	phy->has_symbol_clk = drvdata->has_symbol_clk;
 	memcpy(&phy->isol, &drvdata->isol, sizeof(phy->isol));
 
+	if (!of_property_read_u32_index(dev->of_node, "samsung,pmu-syscon", 1,
+					&isol_offset))
+		phy->isol.offset = isol_offset;
+
 	phy->lane_cnt = PHY_DEF_LANE_CNT;
 
 	phy_set_drvdata(gen_phy, phy);
-- 
2.36.1


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RE: [PATCH v4 5/5] phy: samsung: ufs: support secondary ufs phy

[Alim Akhtar]

>-----Original Message-----
>From: Chanho Park [mailto:chanho61.park@samsung.com]
>Sent: Tuesday, June 7, 2022 12:59 PM
>To: Kishon Vijay Abraham I <kishon@ti.com>; Vinod Koul
><vkoul@kernel.org>; Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>;
>Alim Akhtar <alim.akhtar@samsung.com>; Rob Herring
><robh+dt@kernel.org>; Krzysztof Kozlowski
><krzysztof.kozlowski+dt@linaro.org>
>Cc: devicetree@vger.kernel.org; linux-phy@lists.infradead.org; linux-
>samsung-soc@vger.kernel.org; linux-arm-kernel@lists.infradead.org; Chanho
>Park <chanho61.park@samsung.com>
>Subject: [PATCH v4 5/5] phy: samsung: ufs: support secondary ufs phy
>
>To support secondary ufs phy device, we need to get an offset for phy
>isolation from the syscon DT node. If the first index argument of the node is
>existing, we can read the offset value and set it as isol->offset.
>
>Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>Signed-off-by: Chanho Park <chanho61.park@samsung.com>
>---
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>


> drivers/phy/samsung/phy-samsung-ufs.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
>diff --git a/drivers/phy/samsung/phy-samsung-ufs.c
>b/drivers/phy/samsung/phy-samsung-ufs.c
>index 0c933e364064..206a79c69a6c 100644
>--- a/drivers/phy/samsung/phy-samsung-ufs.c
>+++ b/drivers/phy/samsung/phy-samsung-ufs.c
>@@ -288,6 +288,7 @@ static int samsung_ufs_phy_probe(struct
>platform_device *pdev)
> 	struct phy *gen_phy;
> 	struct phy_provider *phy_provider;
> 	const struct samsung_ufs_phy_drvdata *drvdata;
>+	u32 isol_offset;
> 	int err = 0;
>
> 	match = of_match_node(samsung_ufs_phy_match, dev->of_node);
>@@ -330,6 +331,10 @@ static int samsung_ufs_phy_probe(struct
>platform_device *pdev)
> 	phy->has_symbol_clk = drvdata->has_symbol_clk;
> 	memcpy(&phy->isol, &drvdata->isol, sizeof(phy->isol));
>
>+	if (!of_property_read_u32_index(dev->of_node, "samsung,pmu-
>syscon", 1,
>+					&isol_offset))
>+		phy->isol.offset = isol_offset;
>+
> 	phy->lane_cnt = PHY_DEF_LANE_CNT;
>
> 	phy_set_drvdata(gen_phy, phy);
>--
>2.36.1



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Re: [PATCH v4 0/5] support secondary ufs for Exynos Auto v9 SoC

[Vinod Koul]

On 07-06-22, 16:29, Chanho Park wrote:
> To support ufs #1 for Exynos Auto v9 SoC, we need to control its own pmu
> register. So, we need to specify the offset of the register via an
> argument of syscon node.

Applied, thanks

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