[PATCH 0/3] ath10k: Clean up regulator and clock handling

[PATCH 0/3] ath10k: Clean up regulator and clock handling

[Bjorn Andersson]

The first patch in this series removes the regulator_set_voltage() of a fixed
voltate, as fixed regulator constraints should be specified on a board level
and on certain boards - such as the Lenovo Yoga C630 - the voltage specified
for the 3.3V regulator is outside the given range.

The following two patches cleans up regulator and clock usage by using the bulk
API provided by the two frameworks.

Bjorn Andersson (3):
  ath10k: snoc: skip regulator operations
  ath10k: Use standard regulator bulk API in snoc
  ath10k: Use standard bulk clock API in snoc

 drivers/net/wireless/ath/ath10k/snoc.c | 324 ++++---------------------
 drivers/net/wireless/ath/ath10k/snoc.h |  26 +-
 2 files changed, 48 insertions(+), 302 deletions(-)

-- 
2.18.0

[PATCH 1/3] ath10k: snoc: skip regulator operations

[Bjorn Andersson]

The regulator operations is trying to set a voltage to a fixed value, by
giving some wiggle room. But some board designs specifies regulator
voltages outside this limited range. One such example is the Lenovo Yoga
C630, with vdd-3.3-ch0 in particular specified at 3.1V.

But consumers with fixed voltage requirements should just rely on the
board configuration to provide the power at the required level, so this
code should be removed.

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

This patch is required for Lenovo Yoga C630 to succeed in power on ath10k, it
can be merged independently of the two following cleanup patches.

 drivers/net/wireless/ath/ath10k/snoc.c | 27 ++++++--------------------
 drivers/net/wireless/ath/ath10k/snoc.h |  2 --
 2 files changed, 6 insertions(+), 23 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index fc15a0037f0e..3d93ab09a298 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -37,10 +37,10 @@ static char *const ce_name[] = {
 };
 
 static struct ath10k_vreg_info vreg_cfg[] = {
-	{NULL, "vdd-0.8-cx-mx", 800000, 850000, 0, 0, false},
-	{NULL, "vdd-1.8-xo", 1800000, 1850000, 0, 0, false},
-	{NULL, "vdd-1.3-rfa", 1300000, 1350000, 0, 0, false},
-	{NULL, "vdd-3.3-ch0", 3300000, 3350000, 0, 0, false},
+	{NULL, "vdd-0.8-cx-mx", 0, 0, false},
+	{NULL, "vdd-1.8-xo", 0, 0, false},
+	{NULL, "vdd-1.3-rfa", 0, 0, false},
+	{NULL, "vdd-3.3-ch0", 0, 0, false},
 };
 
 static struct ath10k_clk_info clk_cfg[] = {
@@ -1377,9 +1377,8 @@ static int ath10k_get_vreg_info(struct ath10k *ar, struct device *dev,
 
 done:
 	ath10k_dbg(ar, ATH10K_DBG_SNOC,
-		   "snog vreg %s min_v %u max_v %u load_ua %u settle_delay %lu\n",
-		   vreg_info->name, vreg_info->min_v, vreg_info->max_v,
-		   vreg_info->load_ua, vreg_info->settle_delay);
+		   "snog vreg %s load_ua %u settle_delay %lu\n",
+		   vreg_info->name, vreg_info->load_ua, vreg_info->settle_delay);
 
 	return 0;
 }
@@ -1420,15 +1419,6 @@ static int __ath10k_snoc_vreg_on(struct ath10k *ar,
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc regulator %s being enabled\n",
 		   vreg_info->name);
 
-	ret = regulator_set_voltage(vreg_info->reg, vreg_info->min_v,
-				    vreg_info->max_v);
-	if (ret) {
-		ath10k_err(ar,
-			   "failed to set regulator %s voltage-min: %d voltage-max: %d\n",
-			   vreg_info->name, vreg_info->min_v, vreg_info->max_v);
-		return ret;
-	}
-
 	if (vreg_info->load_ua) {
 		ret = regulator_set_load(vreg_info->reg, vreg_info->load_ua);
 		if (ret < 0) {
@@ -1453,7 +1443,6 @@ static int __ath10k_snoc_vreg_on(struct ath10k *ar,
 err_enable:
 	regulator_set_load(vreg_info->reg, 0);
 err_set_load:
-	regulator_set_voltage(vreg_info->reg, 0, vreg_info->max_v);
 
 	return ret;
 }
@@ -1475,10 +1464,6 @@ static int __ath10k_snoc_vreg_off(struct ath10k *ar,
 	if (ret < 0)
 		ath10k_err(ar, "failed to set load %s\n", vreg_info->name);
 
-	ret = regulator_set_voltage(vreg_info->reg, 0, vreg_info->max_v);
-	if (ret)
-		ath10k_err(ar, "failed to set voltage %s\n", vreg_info->name);
-
 	return ret;
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/snoc.h b/drivers/net/wireless/ath/ath10k/snoc.h
index 9db823e46314..1bf7bd4ef2a3 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.h
+++ b/drivers/net/wireless/ath/ath10k/snoc.h
@@ -45,8 +45,6 @@ struct ath10k_snoc_ce_irq {
 struct ath10k_vreg_info {
 	struct regulator *reg;
 	const char *name;
-	u32 min_v;
-	u32 max_v;
 	u32 load_ua;
 	unsigned long settle_delay;
 	bool required;
-- 
2.18.0

[PATCH 2/3] ath10k: Use standard regulator bulk API in snoc

[Bjorn Andersson]

The regulator_get_optional() exists for cases where the driver needs do
behave differently depending on some regulator supply being present or
not, as we don't use this we can use the standard regulator_get() and
rely on its handling of unspecified regulators.

While the driver currently doesn't specify any loads the regulator
framework was updated last year to only account for load of enabled
regulators, so should the need appear it's better to apply load numbers
during initialization that dynamically.

With this the regulator wrappers have been reduced the become identical
to the standard bulk API provided by the regulator framework, so use
these instead of rolling our own.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 184 ++++---------------------
 drivers/net/wireless/ath/ath10k/snoc.h |  13 +-
 2 files changed, 27 insertions(+), 170 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 3d93ab09a298..1c9ff7e53e2f 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -36,11 +36,11 @@ static char *const ce_name[] = {
 	"WLAN_CE_11",
 };
 
-static struct ath10k_vreg_info vreg_cfg[] = {
-	{NULL, "vdd-0.8-cx-mx", 0, 0, false},
-	{NULL, "vdd-1.8-xo", 0, 0, false},
-	{NULL, "vdd-1.3-rfa", 0, 0, false},
-	{NULL, "vdd-3.3-ch0", 0, 0, false},
+static const char * const ath10k_regulators[] = {
+	"vdd-0.8-cx-mx",
+	"vdd-1.8-xo",
+	"vdd-1.3-rfa",
+	"vdd-3.3-ch0",
 };
 
 static struct ath10k_clk_info clk_cfg[] = {
@@ -1346,43 +1346,6 @@ static void ath10k_snoc_release_resource(struct ath10k *ar)
 		ath10k_ce_free_pipe(ar, i);
 }
 
-static int ath10k_get_vreg_info(struct ath10k *ar, struct device *dev,
-				struct ath10k_vreg_info *vreg_info)
-{
-	struct regulator *reg;
-	int ret = 0;
-
-	reg = devm_regulator_get_optional(dev, vreg_info->name);
-
-	if (IS_ERR(reg)) {
-		ret = PTR_ERR(reg);
-
-		if (ret  == -EPROBE_DEFER) {
-			ath10k_err(ar, "EPROBE_DEFER for regulator: %s\n",
-				   vreg_info->name);
-			return ret;
-		}
-		if (vreg_info->required) {
-			ath10k_err(ar, "Regulator %s doesn't exist: %d\n",
-				   vreg_info->name, ret);
-			return ret;
-		}
-		ath10k_dbg(ar, ATH10K_DBG_SNOC,
-			   "Optional regulator %s doesn't exist: %d\n",
-			   vreg_info->name, ret);
-		goto done;
-	}
-
-	vreg_info->reg = reg;
-
-done:
-	ath10k_dbg(ar, ATH10K_DBG_SNOC,
-		   "snog vreg %s load_ua %u settle_delay %lu\n",
-		   vreg_info->name, vreg_info->load_ua, vreg_info->settle_delay);
-
-	return 0;
-}
-
 static int ath10k_get_clk_info(struct ath10k *ar, struct device *dev,
 			       struct ath10k_clk_info *clk_info)
 {
@@ -1411,114 +1374,6 @@ static int ath10k_get_clk_info(struct ath10k *ar, struct device *dev,
 	return ret;
 }
 
-static int __ath10k_snoc_vreg_on(struct ath10k *ar,
-				 struct ath10k_vreg_info *vreg_info)
-{
-	int ret;
-
-	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc regulator %s being enabled\n",
-		   vreg_info->name);
-
-	if (vreg_info->load_ua) {
-		ret = regulator_set_load(vreg_info->reg, vreg_info->load_ua);
-		if (ret < 0) {
-			ath10k_err(ar, "failed to set regulator %s load: %d\n",
-				   vreg_info->name, vreg_info->load_ua);
-			goto err_set_load;
-		}
-	}
-
-	ret = regulator_enable(vreg_info->reg);
-	if (ret) {
-		ath10k_err(ar, "failed to enable regulator %s\n",
-			   vreg_info->name);
-		goto err_enable;
-	}
-
-	if (vreg_info->settle_delay)
-		udelay(vreg_info->settle_delay);
-
-	return 0;
-
-err_enable:
-	regulator_set_load(vreg_info->reg, 0);
-err_set_load:
-
-	return ret;
-}
-
-static int __ath10k_snoc_vreg_off(struct ath10k *ar,
-				  struct ath10k_vreg_info *vreg_info)
-{
-	int ret;
-
-	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc regulator %s being disabled\n",
-		   vreg_info->name);
-
-	ret = regulator_disable(vreg_info->reg);
-	if (ret)
-		ath10k_err(ar, "failed to disable regulator %s\n",
-			   vreg_info->name);
-
-	ret = regulator_set_load(vreg_info->reg, 0);
-	if (ret < 0)
-		ath10k_err(ar, "failed to set load %s\n", vreg_info->name);
-
-	return ret;
-}
-
-static int ath10k_snoc_vreg_on(struct ath10k *ar)
-{
-	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_vreg_info *vreg_info;
-	int ret = 0;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(vreg_cfg); i++) {
-		vreg_info = &ar_snoc->vreg[i];
-
-		if (!vreg_info->reg)
-			continue;
-
-		ret = __ath10k_snoc_vreg_on(ar, vreg_info);
-		if (ret)
-			goto err_reg_config;
-	}
-
-	return 0;
-
-err_reg_config:
-	for (i = i - 1; i >= 0; i--) {
-		vreg_info = &ar_snoc->vreg[i];
-
-		if (!vreg_info->reg)
-			continue;
-
-		__ath10k_snoc_vreg_off(ar, vreg_info);
-	}
-
-	return ret;
-}
-
-static int ath10k_snoc_vreg_off(struct ath10k *ar)
-{
-	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_vreg_info *vreg_info;
-	int ret = 0;
-	int i;
-
-	for (i = ARRAY_SIZE(vreg_cfg) - 1; i >= 0; i--) {
-		vreg_info = &ar_snoc->vreg[i];
-
-		if (!vreg_info->reg)
-			continue;
-
-		ret = __ath10k_snoc_vreg_off(ar, vreg_info);
-	}
-
-	return ret;
-}
-
 static int ath10k_snoc_clk_init(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
@@ -1591,11 +1446,12 @@ static int ath10k_snoc_clk_deinit(struct ath10k *ar)
 
 static int ath10k_hw_power_on(struct ath10k *ar)
 {
+	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
 	int ret;
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power on\n");
 
-	ret = ath10k_snoc_vreg_on(ar);
+	ret = regulator_bulk_enable(ar_snoc->num_vregs, ar_snoc->vregs);
 	if (ret)
 		return ret;
 
@@ -1606,21 +1462,19 @@ static int ath10k_hw_power_on(struct ath10k *ar)
 	return ret;
 
 vreg_off:
-	ath10k_snoc_vreg_off(ar);
+	regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs);
 	return ret;
 }
 
 static int ath10k_hw_power_off(struct ath10k *ar)
 {
-	int ret;
+	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power off\n");
 
 	ath10k_snoc_clk_deinit(ar);
 
-	ret = ath10k_snoc_vreg_off(ar);
-
-	return ret;
+	return regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs);
 }
 
 static const struct of_device_id ath10k_snoc_dt_match[] = {
@@ -1691,12 +1545,20 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 		goto err_release_resource;
 	}
 
-	ar_snoc->vreg = vreg_cfg;
-	for (i = 0; i < ARRAY_SIZE(vreg_cfg); i++) {
-		ret = ath10k_get_vreg_info(ar, dev, &ar_snoc->vreg[i]);
-		if (ret)
-			goto err_free_irq;
+	ar_snoc->num_vregs = ARRAY_SIZE(ath10k_regulators);
+	ar_snoc->vregs = devm_kcalloc(&pdev->dev, ar_snoc->num_vregs,
+				      sizeof(*ar_snoc->vregs), GFP_KERNEL);
+	if (!ar_snoc->vregs) {
+		ret = -ENOMEM;
+		goto err_free_irq;
 	}
+	for (i = 0; i < ar_snoc->num_vregs; i++)
+		ar_snoc->vregs[i].supply = ath10k_regulators[i];
+
+	ret = devm_regulator_bulk_get(&pdev->dev, ar_snoc->num_vregs,
+				      ar_snoc->vregs);
+	if (ret < 0)
+		goto err_free_irq;
 
 	ar_snoc->clk = clk_cfg;
 	for (i = 0; i < ARRAY_SIZE(clk_cfg); i++) {
diff --git a/drivers/net/wireless/ath/ath10k/snoc.h b/drivers/net/wireless/ath/ath10k/snoc.h
index 1bf7bd4ef2a3..3965ddf66d74 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.h
+++ b/drivers/net/wireless/ath/ath10k/snoc.h
@@ -42,14 +42,6 @@ struct ath10k_snoc_ce_irq {
 	u32 irq_line;
 };
 
-struct ath10k_vreg_info {
-	struct regulator *reg;
-	const char *name;
-	u32 load_ua;
-	unsigned long settle_delay;
-	bool required;
-};
-
 struct ath10k_clk_info {
 	struct clk *handle;
 	const char *name;
@@ -64,6 +56,8 @@ enum ath10k_snoc_flags {
 	ATH10K_SNOC_FLAG_8BIT_HOST_CAP_QUIRK,
 };
 
+struct regulator_bulk_data;
+
 struct ath10k_snoc {
 	struct platform_device *dev;
 	struct ath10k *ar;
@@ -75,7 +69,8 @@ struct ath10k_snoc {
 	struct ath10k_snoc_ce_irq ce_irqs[CE_COUNT_MAX];
 	struct ath10k_ce ce;
 	struct timer_list rx_post_retry;
-	struct ath10k_vreg_info *vreg;
+	struct regulator_bulk_data *vregs;
+	size_t num_vregs;
 	struct ath10k_clk_info *clk;
 	struct ath10k_qmi *qmi;
 	unsigned long flags;
-- 
2.18.0

[PATCH 3/3] ath10k: Use standard bulk clock API in snoc

[Bjorn Andersson]

No frequency is currently specified for the single clock defined in the
snoc driver, so the clock wrappers reimplements the standard bulk API
provided by the clock framework. Change to this.

The single clock defined is marked as optional so this version of the
get API is used, but might need to be reconsidered in the future.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 125 ++++---------------------
 drivers/net/wireless/ath/ath10k/snoc.h |  11 +--
 2 files changed, 21 insertions(+), 115 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 1c9ff7e53e2f..80ce68c0f75e 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -43,8 +43,8 @@ static const char * const ath10k_regulators[] = {
 	"vdd-3.3-ch0",
 };
 
-static struct ath10k_clk_info clk_cfg[] = {
-	{NULL, "cxo_ref_clk_pin", 0, false},
+static const char * const ath10k_clocks[] = {
+	"cxo_ref_clk_pin",
 };
 
 static void ath10k_snoc_htc_tx_cb(struct ath10k_ce_pipe *ce_state);
@@ -1346,104 +1346,6 @@ static void ath10k_snoc_release_resource(struct ath10k *ar)
 		ath10k_ce_free_pipe(ar, i);
 }
 
-static int ath10k_get_clk_info(struct ath10k *ar, struct device *dev,
-			       struct ath10k_clk_info *clk_info)
-{
-	struct clk *handle;
-	int ret = 0;
-
-	handle = devm_clk_get(dev, clk_info->name);
-	if (IS_ERR(handle)) {
-		ret = PTR_ERR(handle);
-		if (clk_info->required) {
-			ath10k_err(ar, "snoc clock %s isn't available: %d\n",
-				   clk_info->name, ret);
-			return ret;
-		}
-		ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc ignoring clock %s: %d\n",
-			   clk_info->name,
-			   ret);
-		return 0;
-	}
-
-	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc clock %s freq %u\n",
-		   clk_info->name, clk_info->freq);
-
-	clk_info->handle = handle;
-
-	return ret;
-}
-
-static int ath10k_snoc_clk_init(struct ath10k *ar)
-{
-	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_clk_info *clk_info;
-	int ret = 0;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(clk_cfg); i++) {
-		clk_info = &ar_snoc->clk[i];
-
-		if (!clk_info->handle)
-			continue;
-
-		ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc clock %s being enabled\n",
-			   clk_info->name);
-
-		if (clk_info->freq) {
-			ret = clk_set_rate(clk_info->handle, clk_info->freq);
-
-			if (ret) {
-				ath10k_err(ar, "failed to set clock %s freq %u\n",
-					   clk_info->name, clk_info->freq);
-				goto err_clock_config;
-			}
-		}
-
-		ret = clk_prepare_enable(clk_info->handle);
-		if (ret) {
-			ath10k_err(ar, "failed to enable clock %s\n",
-				   clk_info->name);
-			goto err_clock_config;
-		}
-	}
-
-	return 0;
-
-err_clock_config:
-	for (i = i - 1; i >= 0; i--) {
-		clk_info = &ar_snoc->clk[i];
-
-		if (!clk_info->handle)
-			continue;
-
-		clk_disable_unprepare(clk_info->handle);
-	}
-
-	return ret;
-}
-
-static int ath10k_snoc_clk_deinit(struct ath10k *ar)
-{
-	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_clk_info *clk_info;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(clk_cfg); i++) {
-		clk_info = &ar_snoc->clk[i];
-
-		if (!clk_info->handle)
-			continue;
-
-		ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc clock %s being disabled\n",
-			   clk_info->name);
-
-		clk_disable_unprepare(clk_info->handle);
-	}
-
-	return 0;
-}
-
 static int ath10k_hw_power_on(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
@@ -1455,7 +1357,7 @@ static int ath10k_hw_power_on(struct ath10k *ar)
 	if (ret)
 		return ret;
 
-	ret = ath10k_snoc_clk_init(ar);
+	ret = clk_bulk_prepare_enable(ar_snoc->num_clks, ar_snoc->clks);
 	if (ret)
 		goto vreg_off;
 
@@ -1472,7 +1374,7 @@ static int ath10k_hw_power_off(struct ath10k *ar)
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power off\n");
 
-	ath10k_snoc_clk_deinit(ar);
+	clk_bulk_disable_unprepare(ar_snoc->num_clks, ar_snoc->clks);
 
 	return regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs);
 }
@@ -1560,13 +1462,22 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto err_free_irq;
 
-	ar_snoc->clk = clk_cfg;
-	for (i = 0; i < ARRAY_SIZE(clk_cfg); i++) {
-		ret = ath10k_get_clk_info(ar, dev, &ar_snoc->clk[i]);
-		if (ret)
-			goto err_free_irq;
+	ar_snoc->num_clks = ARRAY_SIZE(ath10k_clocks);
+	ar_snoc->clks = devm_kcalloc(&pdev->dev, ar_snoc->num_clks,
+				     sizeof(*ar_snoc->clks), GFP_KERNEL);
+	if (!ar_snoc->clks) {
+		ret = -ENOMEM;
+		goto err_free_irq;
 	}
 
+	for (i = 0; i < ar_snoc->num_clks; i++)
+		ar_snoc->clks[i].id = ath10k_clocks[i];
+
+	ret = devm_clk_bulk_get_optional(&pdev->dev, ar_snoc->num_clks,
+					 ar_snoc->clks);
+	if (ret)
+		goto err_free_irq;
+
 	ret = ath10k_hw_power_on(ar);
 	if (ret) {
 		ath10k_err(ar, "failed to power on device: %d\n", ret);
diff --git a/drivers/net/wireless/ath/ath10k/snoc.h b/drivers/net/wireless/ath/ath10k/snoc.h
index 3965ddf66d74..d2449a3b4a8f 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.h
+++ b/drivers/net/wireless/ath/ath10k/snoc.h
@@ -42,13 +42,6 @@ struct ath10k_snoc_ce_irq {
 	u32 irq_line;
 };
 
-struct ath10k_clk_info {
-	struct clk *handle;
-	const char *name;
-	u32 freq;
-	bool required;
-};
-
 enum ath10k_snoc_flags {
 	ATH10K_SNOC_FLAG_REGISTERED,
 	ATH10K_SNOC_FLAG_UNREGISTERING,
@@ -56,6 +49,7 @@ enum ath10k_snoc_flags {
 	ATH10K_SNOC_FLAG_8BIT_HOST_CAP_QUIRK,
 };
 
+struct clk_bulk_data;
 struct regulator_bulk_data;
 
 struct ath10k_snoc {
@@ -71,7 +65,8 @@ struct ath10k_snoc {
 	struct timer_list rx_post_retry;
 	struct regulator_bulk_data *vregs;
 	size_t num_vregs;
-	struct ath10k_clk_info *clk;
+	struct clk_bulk_data *clks;
+	size_t num_clks;
 	struct ath10k_qmi *qmi;
 	unsigned long flags;
 };
-- 
2.18.0

Re: [PATCH 0/3] ath10k: Clean up regulator and clock handling

[Govind Singh]

On 2019-07-25 23:17, Bjorn Andersson wrote:
> The first patch in this series removes the regulator_set_voltage() of a 
> fixed
> voltate, as fixed regulator constraints should be specified on a board 
> level
> and on certain boards - such as the Lenovo Yoga C630 - the voltage 
> specified
> for the 3.3V regulator is outside the given range.
> 
> The following two patches cleans up regulator and clock usage by using 
> the bulk
> API provided by the two frameworks.
> 
> Bjorn Andersson (3):
>   ath10k: snoc: skip regulator operations
>   ath10k: Use standard regulator bulk API in snoc
>   ath10k: Use standard bulk clock API in snoc
> 
>  drivers/net/wireless/ath/ath10k/snoc.c | 324 ++++---------------------
>  drivers/net/wireless/ath/ath10k/snoc.h |  26 +-
>  2 files changed, 48 insertions(+), 302 deletions(-)

Tested on 845 MTP and QCS404 platform with normal sanity and driver 
recover cases for proxy votes.

Tested-by: Govind Singh <govinds@codeaurora.org>
Reviewed-by: Govind Singh <govinds@codeaurora.org>

BR,
Govind

Re: [PATCH 0/3] ath10k: Clean up regulator and clock handling

[Bjorn Andersson]

On Thu 25 Jul 23:52 PDT 2019, Govind Singh wrote:

> On 2019-07-25 23:17, Bjorn Andersson wrote:
> > The first patch in this series removes the regulator_set_voltage() of a
> > fixed
> > voltate, as fixed regulator constraints should be specified on a board
> > level
> > and on certain boards - such as the Lenovo Yoga C630 - the voltage
> > specified
> > for the 3.3V regulator is outside the given range.
> > 
> > The following two patches cleans up regulator and clock usage by using
> > the bulk
> > API provided by the two frameworks.
> > 
> > Bjorn Andersson (3):
> >   ath10k: snoc: skip regulator operations
> >   ath10k: Use standard regulator bulk API in snoc
> >   ath10k: Use standard bulk clock API in snoc
> > 
> >  drivers/net/wireless/ath/ath10k/snoc.c | 324 ++++---------------------
> >  drivers/net/wireless/ath/ath10k/snoc.h |  26 +-
> >  2 files changed, 48 insertions(+), 302 deletions(-)
> 
> Tested on 845 MTP and QCS404 platform with normal sanity and driver recover
> cases for proxy votes.
> 
> Tested-by: Govind Singh <govinds@codeaurora.org>
> Reviewed-by: Govind Singh <govinds@codeaurora.org>
> 

Thanks Govind!

Regards,
Bjorn

Re: [PATCH 1/3] ath10k: snoc: skip regulator operations

[Kalle Valo]

Bjorn Andersson <bjorn.andersson@linaro.org> wrote:

> The regulator operations is trying to set a voltage to a fixed value, by
> giving some wiggle room. But some board designs specifies regulator
> voltages outside this limited range. One such example is the Lenovo Yoga
> C630, with vdd-3.3-ch0 in particular specified at 3.1V.
> 
> But consumers with fixed voltage requirements should just rely on the
> board configuration to provide the power at the required level, so this
> code should be removed.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

3 patches applied to ath-next branch of ath.git, thanks.

b003e7f1974e ath10k: snoc: skip regulator operations
c56c7f24d7f8 ath10k: Use standard regulator bulk API in snoc
f93bcf0ce6a1 ath10k: Use standard bulk clock API in snoc

-- 
https://patchwork.kernel.org/patch/11059507/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches