diff mbox series

[net-next,3/7] net: ipa: use interconnect bulk enable/disable operations

Message ID 20220204195044.1082026-4-elder@linaro.org (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series net: ipa: use bulk interconnect interfaces | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 4 of 4 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 106 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Alex Elder Feb. 4, 2022, 7:50 p.m. UTC
The power interconnect array is now an array of icc_bulk_data
structures, which is what the interconnect bulk enable and disable
functions require.

Get rid of ipa_interconnect_enable() and ipa_interconnect_disable(),
and just call icc_bulk_enable() and icc_bulk_disable() instead.

Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/net/ipa/ipa_power.c | 76 +++++++------------------------------
 1 file changed, 13 insertions(+), 63 deletions(-)

Comments

Jakub Kicinski Feb. 5, 2022, 4:23 a.m. UTC | #1
On Fri,  4 Feb 2022 13:50:40 -0600 Alex Elder wrote:
> The power interconnect array is now an array of icc_bulk_data
> structures, which is what the interconnect bulk enable and disable
> functions require.
> 
> Get rid of ipa_interconnect_enable() and ipa_interconnect_disable(),
> and just call icc_bulk_enable() and icc_bulk_disable() instead.
> 
> Signed-off-by: Alex Elder <elder@linaro.org>

We got a kbuild bot complaint here, for some reason off-list.
Let me drop it from PW for now.
Alex Elder Feb. 5, 2022, 2:35 p.m. UTC | #2
On 2/4/22 10:23 PM, Jakub Kicinski wrote:
> On Fri,  4 Feb 2022 13:50:40 -0600 Alex Elder wrote:
>> The power interconnect array is now an array of icc_bulk_data
>> structures, which is what the interconnect bulk enable and disable
>> functions require.
>>
>> Get rid of ipa_interconnect_enable() and ipa_interconnect_disable(),
>> and just call icc_bulk_enable() and icc_bulk_disable() instead.
>>
>> Signed-off-by: Alex Elder <elder@linaro.org>
> 
> We got a kbuild bot complaint here, for some reason off-list.
> Let me drop it from PW for now.

OK.  I guess the interconnect code isn't ready for COMPILE_TEST.
I'll investigate that a little more and if we can get past that
I'll send out a new version.  Not sure how long that will take
though...

Thanks, I retract this series for now.

					-Alex
diff mbox series

Patch

diff --git a/drivers/net/ipa/ipa_power.c b/drivers/net/ipa/ipa_power.c
index ec2ebc74edb8b..67f76e6a6ae59 100644
--- a/drivers/net/ipa/ipa_power.c
+++ b/drivers/net/ipa/ipa_power.c
@@ -156,86 +156,34 @@  static void ipa_interconnect_exit(struct ipa_power *power)
 	power->interconnect = NULL;
 }
 
-/* Currently we only use one bandwidth level, so just "enable" interconnects */
-static int ipa_interconnect_enable(struct ipa *ipa)
-{
-	struct icc_bulk_data *interconnect;
-	struct ipa_power *power = ipa->power;
-	int ret;
-	u32 i;
-
-	interconnect = power->interconnect;
-	for (i = 0; i < power->interconnect_count; i++) {
-		ret = icc_enable(interconnect->path);
-		if (ret) {
-			dev_err(&ipa->pdev->dev,
-				"error %d enabling %s interconnect\n",
-				ret, interconnect->name);
-			goto out_unwind;
-		}
-		interconnect++;
-	}
-
-	return 0;
-
-out_unwind:
-	while (interconnect-- > power->interconnect)
-		(void)icc_disable(interconnect->path);
-
-	return ret;
-}
-
-/* To disable an interconnect, we just its bandwidth to 0 */
-static int ipa_interconnect_disable(struct ipa *ipa)
-{
-	struct ipa_power *power = ipa->power;
-	struct device *dev = &ipa->pdev->dev;
-	struct icc_bulk_data *interconnect;
-	int result = 0;
-	u32 count;
-	int ret;
-
-	count = power->interconnect_count;
-	interconnect = power->interconnect + count;
-	while (count--) {
-		interconnect--;
-		ret = icc_disable(interconnect->path);
-		if (ret) {
-			dev_err(dev, "error %d disabling %s interconnect\n",
-				ret, interconnect->name);
-			/* Try to disable all; record only the first error */
-			if (!result)
-				result = ret;
-		}
-	}
-
-	return result;
-}
-
 /* Enable IPA power, enabling interconnects and the core clock */
 static int ipa_power_enable(struct ipa *ipa)
 {
+	struct ipa_power *power = ipa->power;
 	int ret;
 
-	ret = ipa_interconnect_enable(ipa);
+	ret = icc_bulk_enable(power->interconnect_count, power->interconnect);
 	if (ret)
 		return ret;
 
-	ret = clk_prepare_enable(ipa->power->core);
+	ret = clk_prepare_enable(power->core);
 	if (ret) {
 		dev_err(&ipa->pdev->dev, "error %d enabling core clock\n", ret);
-		(void)ipa_interconnect_disable(ipa);
+		icc_bulk_disable(power->interconnect_count,
+				 power->interconnect);
 	}
 
 	return ret;
 }
 
 /* Inverse of ipa_power_enable() */
-static int ipa_power_disable(struct ipa *ipa)
+static void ipa_power_disable(struct ipa *ipa)
 {
-	clk_disable_unprepare(ipa->power->core);
+	struct ipa_power *power = ipa->power;
 
-	return ipa_interconnect_disable(ipa);
+	clk_disable_unprepare(power->core);
+
+	icc_bulk_disable(power->interconnect_count, power->interconnect);
 }
 
 static int ipa_runtime_suspend(struct device *dev)
@@ -249,7 +197,9 @@  static int ipa_runtime_suspend(struct device *dev)
 		gsi_suspend(&ipa->gsi);
 	}
 
-	return ipa_power_disable(ipa);
+	ipa_power_disable(ipa);
+
+	return 0;
 }
 
 static int ipa_runtime_resume(struct device *dev)