[net-next,3/3] net: ipa: use config data for clocking

Commit Message

Alex Elder Nov. 19, 2020, 10:40 p.m. UTC

Stop assuming a fixed IPA core clock rate and interconnect
bandwidths.  Use the configuration data defined for these
things instead.  Get rid of the previously-used constants.

Signed-off-by: Alex Elder <[e-mail]>
---
 drivers/net/ipa/ipa_clock.c | 40 ++++++++++++++++++-------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

Patch

diff --git a/drivers/net/ipa/ipa_clock.c b/drivers/net/ipa/ipa_clock.c
index ef343669280ef..9dcf16f399b7a 100644
--- a/drivers/net/ipa/ipa_clock.c
+++ b/drivers/net/ipa/ipa_clock.c
@@ -30,18 +30,6 @@ 
  * An IPA clock reference must be held for any access to IPA hardware.
  */
 
-#define	IPA_CORE_CLOCK_RATE		(75UL * 1000 * 1000)	/* Hz */
-
-/* Interconnect path bandwidths (each times 1000 bytes per second) */
-#define IPA_MEMORY_AVG			(80 * 1000)	/* 80 MBps */
-#define IPA_MEMORY_PEAK			(600 * 1000)
-
-#define IPA_IMEM_AVG			(80 * 1000)
-#define IPA_IMEM_PEAK			(350 * 1000)
-
-#define IPA_CONFIG_AVG			(40 * 1000)
-#define IPA_CONFIG_PEAK			(40 * 1000)
-
 /**
  * struct ipa_clock - IPA clocking information
  * @count:		Clocking reference count
@@ -116,18 +104,25 @@  static void ipa_interconnect_exit(struct ipa_clock *clock)
 /* Currently we only use one bandwidth level, so just "enable" interconnects */
 static int ipa_interconnect_enable(struct ipa *ipa)
 {
+	const struct ipa_interconnect_data *data;
 	struct ipa_clock *clock = ipa->clock;
 	int ret;
 
-	ret = icc_set_bw(clock->memory_path, IPA_MEMORY_AVG, IPA_MEMORY_PEAK);
+	data = &clock->interconnect_data[IPA_INTERCONNECT_MEMORY];
+	ret = icc_set_bw(clock->memory_path, data->average_rate,
+			 data->peak_rate);
 	if (ret)
 		return ret;
 
-	ret = icc_set_bw(clock->imem_path, IPA_IMEM_AVG, IPA_IMEM_PEAK);
+	data = &clock->interconnect_data[IPA_INTERCONNECT_IMEM];
+	ret = icc_set_bw(clock->memory_path, data->average_rate,
+			 data->peak_rate);
 	if (ret)
 		goto err_memory_path_disable;
 
-	ret = icc_set_bw(clock->config_path, IPA_CONFIG_AVG, IPA_CONFIG_PEAK);
+	data = &clock->interconnect_data[IPA_INTERCONNECT_CONFIG];
+	ret = icc_set_bw(clock->memory_path, data->average_rate,
+			 data->peak_rate);
 	if (ret)
 		goto err_imem_path_disable;
 
@@ -144,6 +139,7 @@  static int ipa_interconnect_enable(struct ipa *ipa)
 /* To disable an interconnect, we just its bandwidth to 0 */
 static int ipa_interconnect_disable(struct ipa *ipa)
 {
+	const struct ipa_interconnect_data *data;
 	struct ipa_clock *clock = ipa->clock;
 	int ret;
 
@@ -162,9 +158,13 @@  static int ipa_interconnect_disable(struct ipa *ipa)
 	return 0;
 
 err_imem_path_reenable:
-	(void)icc_set_bw(clock->imem_path, IPA_IMEM_AVG, IPA_IMEM_PEAK);
+	data = &clock->interconnect_data[IPA_INTERCONNECT_IMEM];
+	(void)icc_set_bw(clock->imem_path, data->average_rate,
+			 data->peak_rate);
 err_memory_path_reenable:
-	(void)icc_set_bw(clock->memory_path, IPA_MEMORY_AVG, IPA_MEMORY_PEAK);
+	data = &clock->interconnect_data[IPA_INTERCONNECT_MEMORY];
+	(void)icc_set_bw(clock->memory_path, data->average_rate,
+			 data->peak_rate);
 
 	return ret;
 }
@@ -273,10 +273,10 @@  ipa_clock_init(struct device *dev, const struct ipa_clock_data *data)
 		return ERR_CAST(clk);
 	}
 
-	ret = clk_set_rate(clk, IPA_CORE_CLOCK_RATE);
+	ret = clk_set_rate(clk, data->core_clock_rate);
 	if (ret) {
-		dev_err(dev, "error %d setting core clock rate to %lu\n",
-			ret, IPA_CORE_CLOCK_RATE);
+		dev_err(dev, "error %d setting core clock rate to %u\n",
+			ret, data->core_clock_rate);
 		goto err_clk_put;
 	}