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From:   Cristian Marussi <cristian.marussi@arm.com>
To:     linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc:     sudeep.holla@arm.com, lukasz.luba@arm.com,
        james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com,
        f.fainelli@gmail.com, etienne.carriere@linaro.org,
        thara.gopinath@linaro.org, vincent.guittot@linaro.org,
        souvik.chakravarty@arm.com, cristian.marussi@arm.com
Subject: [PATCH v4 14/37] firmware: arm_scmi: remove legacy scmi_perf_ops protocol interface
Date:   Wed,  6 Jan 2021 20:15:47 +0000
Message-Id: <20210106201610.26538-15-cristian.marussi@arm.com>
In-Reply-To: <20210106201610.26538-1-cristian.marussi@arm.com>
References: <20210106201610.26538-1-cristian.marussi@arm.com>
Precedence: bulk

Now that all the SCMI driver users have been migrated to the new interface
remove the legacy interface and all the transient code.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
 drivers/firmware/arm_scmi/perf.c | 120 -------------------------------
 include/linux/scmi_protocol.h    |  27 -------
 2 files changed, 147 deletions(-)

diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 99144a70ded6..b2e1bdad2b3a 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -391,15 +391,6 @@ static int scmi_perf_limits_set(const struct scmi_protocol_handle *ph,
 	return scmi_perf_mb_limits_set(ph, domain, max_perf, min_perf);
 }
 
-static int __scmi_perf_limits_set(const struct scmi_handle *handle,
-				  u32 domain, u32 max_perf, u32 min_perf)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_perf_limits_set(ph, domain, max_perf, min_perf);
-}
-
 static int scmi_perf_mb_limits_get(const struct scmi_protocol_handle *ph,
 				   u32 domain, u32 *max_perf, u32 *min_perf)
 {
@@ -441,15 +432,6 @@ static int scmi_perf_limits_get(const struct scmi_protocol_handle *ph,
 	return scmi_perf_mb_limits_get(ph, domain, max_perf, min_perf);
 }
 
-static int __scmi_perf_limits_get(const struct scmi_handle *handle,
-				  u32 domain, u32 *max_perf, u32 *min_perf)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_perf_limits_get(ph, domain, max_perf, min_perf);
-}
-
 static int scmi_perf_mb_level_set(const struct scmi_protocol_handle *ph,
 				  u32 domain, u32 level, bool poll)
 {
@@ -487,15 +469,6 @@ static int scmi_perf_level_set(const struct scmi_protocol_handle *ph,
 	return scmi_perf_mb_level_set(ph, domain, level, poll);
 }
 
-static int __scmi_perf_level_set(const struct scmi_handle *handle,
-				 u32 domain, u32 level, bool poll)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_perf_level_set(ph, domain, level, poll);
-}
-
 static int scmi_perf_mb_level_get(const struct scmi_protocol_handle *ph,
 				  u32 domain, u32 *level, bool poll)
 {
@@ -532,15 +505,6 @@ static int scmi_perf_level_get(const struct scmi_protocol_handle *ph,
 	return scmi_perf_mb_level_get(ph, domain, level, poll);
 }
 
-static int __scmi_perf_level_get(const struct scmi_handle *handle,
-				 u32 domain, u32 *level, bool poll)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_perf_level_get(ph, domain, level, poll);
-}
-
 static int scmi_perf_level_limits_notify(const struct scmi_protocol_handle *ph,
 					 u32 domain, int message_id,
 					 bool enable)
@@ -704,15 +668,6 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
 	return 0;
 }
 
-static int __scmi_dvfs_device_opps_add(const struct scmi_handle *handle,
-				       struct device *dev)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_dvfs_device_opps_add(ph, dev);
-}
-
 static int
 scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph,
 				 struct device *dev)
@@ -729,16 +684,6 @@ scmi_dvfs_transition_latency_get(const struct scmi_protocol_handle *ph,
 	return dom->opp[dom->opp_count - 1].trans_latency_us * 1000;
 }
 
-static int
-__scmi_dvfs_transition_latency_get(const struct scmi_handle *handle,
-				   struct device *dev)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_dvfs_transition_latency_get(ph, dev);
-}
-
 static int scmi_dvfs_freq_set(const struct scmi_protocol_handle *ph, u32 domain,
 			      unsigned long freq, bool poll)
 {
@@ -748,15 +693,6 @@ static int scmi_dvfs_freq_set(const struct scmi_protocol_handle *ph, u32 domain,
 	return scmi_perf_level_set(ph, domain, freq / dom->mult_factor, poll);
 }
 
-static int __scmi_dvfs_freq_set(const struct scmi_handle *handle,
-				u32 domain, unsigned long freq, bool poll)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_dvfs_freq_set(ph, domain, freq, poll);
-}
-
 static int scmi_dvfs_freq_get(const struct scmi_protocol_handle *ph, u32 domain,
 			      unsigned long *freq, bool poll)
 {
@@ -772,15 +708,6 @@ static int scmi_dvfs_freq_get(const struct scmi_protocol_handle *ph, u32 domain,
 	return ret;
 }
 
-static int __scmi_dvfs_freq_get(const struct scmi_handle *handle, u32 domain,
-				unsigned long *freq, bool poll)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_dvfs_freq_get(ph, domain, freq, poll);
-}
-
 static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph,
 				   u32 domain, unsigned long *freq,
 				   unsigned long *power)
@@ -809,16 +736,6 @@ static int scmi_dvfs_est_power_get(const struct scmi_protocol_handle *ph,
 	return ret;
 }
 
-static int __scmi_dvfs_est_power_get(const struct scmi_handle *handle,
-				     u32 domain, unsigned long *freq,
-				     unsigned long *power)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_dvfs_est_power_get(ph, domain, freq, power);
-}
-
 static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph,
 				      struct device *dev)
 {
@@ -830,15 +747,6 @@ static bool scmi_fast_switch_possible(const struct scmi_protocol_handle *ph,
 	return dom->fc_info && dom->fc_info->level_set_addr;
 }
 
-static bool __scmi_fast_switch_possible(const struct scmi_handle *handle,
-					struct device *dev)
-{
-	const struct scmi_protocol_handle *ph =
-		scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_fast_switch_possible(ph, dev);
-}
-
 static bool scmi_power_scale_mw_get(const struct scmi_protocol_handle *ph)
 {
 	struct scmi_perf_info *pi = ph->get_priv(ph);
@@ -846,29 +754,6 @@ static bool scmi_power_scale_mw_get(const struct scmi_protocol_handle *ph)
 	return pi->power_scale_mw;
 }
 
-static bool __scmi_power_scale_mw_get(const struct scmi_handle *handle)
-{
-	const struct scmi_protocol_handle *ph =
-			scmi_map_protocol_handle(handle, SCMI_PROTOCOL_PERF);
-
-	return scmi_power_scale_mw_get(ph);
-}
-
-static const struct scmi_perf_ops perf_ops = {
-	.limits_set = __scmi_perf_limits_set,
-	.limits_get = __scmi_perf_limits_get,
-	.level_set = __scmi_perf_level_set,
-	.level_get = __scmi_perf_level_get,
-	.device_domain_id = scmi_dev_domain_id,
-	.transition_latency_get = __scmi_dvfs_transition_latency_get,
-	.device_opps_add = __scmi_dvfs_device_opps_add,
-	.freq_set = __scmi_dvfs_freq_set,
-	.freq_get = __scmi_dvfs_freq_get,
-	.est_power_get = __scmi_dvfs_est_power_get,
-	.fast_switch_possible = __scmi_fast_switch_possible,
-	.power_scale_mw_get = __scmi_power_scale_mw_get,
-};
-
 static const struct scmi_perf_proto_ops perf_proto_ops = {
 	.limits_set = scmi_perf_limits_set,
 	.limits_get = scmi_perf_limits_get,
@@ -991,7 +876,6 @@ static int scmi_perf_protocol_init(const struct scmi_protocol_handle *ph)
 	int domain;
 	u32 version;
 	struct scmi_perf_info *pinfo;
-	struct scmi_handle *handle;
 
 	ph->xops->version_get(ph, &version);
 
@@ -1021,10 +905,6 @@ static int scmi_perf_protocol_init(const struct scmi_protocol_handle *ph)
 
 	pinfo->version = version;
 
-	/* Transient code for legacy ops interface */
-	handle = scmi_map_scmi_handle(ph);
-	handle->perf_ops = &perf_ops;
-
 	return ph->set_priv(ph, pinfo);
 }
 
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h
index 0d2138f1d9f3..642c55a108ad 100644
--- a/include/linux/scmi_protocol.h
+++ b/include/linux/scmi_protocol.h
@@ -127,31 +127,6 @@ struct scmi_perf_proto_ops {
 	bool (*power_scale_mw_get)(const struct scmi_protocol_handle *ph);
 };
 
-struct scmi_perf_ops {
-	int (*limits_set)(const struct scmi_handle *handle, u32 domain,
-			  u32 max_perf, u32 min_perf);
-	int (*limits_get)(const struct scmi_handle *handle, u32 domain,
-			  u32 *max_perf, u32 *min_perf);
-	int (*level_set)(const struct scmi_handle *handle, u32 domain,
-			 u32 level, bool poll);
-	int (*level_get)(const struct scmi_handle *handle, u32 domain,
-			 u32 *level, bool poll);
-	int (*device_domain_id)(struct device *dev);
-	int (*transition_latency_get)(const struct scmi_handle *handle,
-				      struct device *dev);
-	int (*device_opps_add)(const struct scmi_handle *handle,
-			       struct device *dev);
-	int (*freq_set)(const struct scmi_handle *handle, u32 domain,
-			unsigned long rate, bool poll);
-	int (*freq_get)(const struct scmi_handle *handle, u32 domain,
-			unsigned long *rate, bool poll);
-	int (*est_power_get)(const struct scmi_handle *handle, u32 domain,
-			     unsigned long *rate, unsigned long *power);
-	bool (*fast_switch_possible)(const struct scmi_handle *handle,
-				     struct device *dev);
-	bool (*power_scale_mw_get)(const struct scmi_handle *handle);
-};
-
 /**
  * struct scmi_power_ops - represents the various operations provided
  *	by SCMI Power Protocol
@@ -628,7 +603,6 @@ struct scmi_notify_ops {
  * @dev: pointer to the SCMI device
  * @version: pointer to the structure containing SCMI version information
  * @power_ops: pointer to set of power protocol operations
- * @perf_ops: pointer to set of performance protocol operations
  * @clk_ops: pointer to set of clock protocol operations
  * @sensor_ops: pointer to set of sensor protocol operations
  * @reset_ops: pointer to set of reset protocol operations
@@ -656,7 +630,6 @@ struct scmi_notify_ops {
 struct scmi_handle {
 	struct device *dev;
 	struct scmi_revision_info *version;
-	const struct scmi_perf_ops *perf_ops;
 	const struct scmi_clk_ops *clk_ops;
 	const struct scmi_power_ops *power_ops;
 	const struct scmi_sensor_ops *sensor_ops;
-- 
2.17.1