From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: [PATCH 1/2] phy: core: Add phy_pm_runtime_enabled Date: Sat, 17 Nov 2018 05:37:54 -0800 Message-ID: <20181117133755.9129-2-tony@atomide.com> References: <20181117133755.9129-1-tony@atomide.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20181117133755.9129-1-tony@atomide.com> Sender: linux-kernel-owner@vger.kernel.org To: Kishon Vijay Abraham I Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-omap@vger.kernel.org, Pavel Machek , Sebastian Reichel List-Id: linux-omap@vger.kernel.org The phy driver may need to check phy_pm_runtime_enabled() in suspend as PM runtime for phy may be already disabled when phy power_off() is called. Cc: Pavel Machek Cc: Sebastian Reichel Signed-off-by: Tony Lindgren --- drivers/phy/phy-core.c | 9 +++++++++ include/linux/phy/phy.h | 6 ++++++ 2 files changed, 15 insertions(+) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -209,6 +209,15 @@ int phy_pm_runtime_put_sync(struct phy *phy) } EXPORT_SYMBOL_GPL(phy_pm_runtime_put_sync); +bool phy_pm_runtime_enabled(struct phy *phy) +{ + if (!phy) + return false; + + return pm_runtime_enabled(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_pm_runtime_enabled); + void phy_pm_runtime_allow(struct phy *phy) { if (!phy) diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -158,6 +158,7 @@ int phy_pm_runtime_get(struct phy *phy); int phy_pm_runtime_get_sync(struct phy *phy); int phy_pm_runtime_put(struct phy *phy); int phy_pm_runtime_put_sync(struct phy *phy); +bool phy_pm_runtime_enabled(struct phy *phy); void phy_pm_runtime_allow(struct phy *phy); void phy_pm_runtime_forbid(struct phy *phy); int phy_init(struct phy *phy); @@ -240,6 +241,11 @@ static inline int phy_pm_runtime_put_sync(struct phy *phy) return -ENOSYS; } +static inline bool phy_pm_runtime_enabled(struct phy *phy) +{ + return false +} + static inline void phy_pm_runtime_allow(struct phy *phy) { return; -- 2.19.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [1/2] phy: core: Add phy_pm_runtime_enabled From: Tony Lindgren Message-Id: <20181117133755.9129-2-tony@atomide.com> Date: Sat, 17 Nov 2018 05:37:54 -0800 To: Kishon Vijay Abraham I Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-omap@vger.kernel.org, Pavel Machek , Sebastian Reichel List-ID: VGhlIHBoeSBkcml2ZXIgbWF5IG5lZWQgdG8gY2hlY2sgcGh5X3BtX3J1bnRpbWVfZW5hYmxlZCgp IGluIHN1c3BlbmQgYXMKUE0gcnVudGltZSBmb3IgcGh5IG1heSBiZSBhbHJlYWR5IGRpc2FibGVk IHdoZW4gcGh5IHBvd2VyX29mZigpIGlzIGNhbGxlZC4KCkNjOiBQYXZlbCBNYWNoZWsgPHBhdmVs QHVjdy5jej4KQ2M6IFNlYmFzdGlhbiBSZWljaGVsIDxzcmVAa2VybmVsLm9yZz4KU2lnbmVkLW9m Zi1ieTogVG9ueSBMaW5kZ3JlbiA8dG9ueUBhdG9taWRlLmNvbT4KLS0tCiBkcml2ZXJzL3BoeS9w aHktY29yZS5jICB8IDkgKysrKysrKysrCiBpbmNsdWRlL2xpbnV4L3BoeS9waHkuaCB8IDYgKysr KysrCiAyIGZpbGVzIGNoYW5nZWQsIDE1IGluc2VydGlvbnMoKykKCmRpZmYgLS1naXQgYS9kcml2 ZXJzL3BoeS9waHktY29yZS5jIGIvZHJpdmVycy9waHkvcGh5LWNvcmUuYwotLS0gYS9kcml2ZXJz L3BoeS9waHktY29yZS5jCisrKyBiL2RyaXZlcnMvcGh5L3BoeS1jb3JlLmMKQEAgLTIwOSw2ICsy MDksMTUgQEAgaW50IHBoeV9wbV9ydW50aW1lX3B1dF9zeW5jKHN0cnVjdCBwaHkgKnBoeSkKIH0K IEVYUE9SVF9TWU1CT0xfR1BMKHBoeV9wbV9ydW50aW1lX3B1dF9zeW5jKTsKIAorYm9vbCBwaHlf cG1fcnVudGltZV9lbmFibGVkKHN0cnVjdCBwaHkgKnBoeSkKK3sKKwlpZiAoIXBoeSkKKwkJcmV0 dXJuIGZhbHNlOworCisJcmV0dXJuIHBtX3J1bnRpbWVfZW5hYmxlZCgmcGh5LT5kZXYpOworfQor RVhQT1JUX1NZTUJPTF9HUEwocGh5X3BtX3J1bnRpbWVfZW5hYmxlZCk7CisKIHZvaWQgcGh5X3Bt X3J1bnRpbWVfYWxsb3coc3RydWN0IHBoeSAqcGh5KQogewogCWlmICghcGh5KQpkaWZmIC0tZ2l0 IGEvaW5jbHVkZS9saW51eC9waHkvcGh5LmggYi9pbmNsdWRlL2xpbnV4L3BoeS9waHkuaAotLS0g YS9pbmNsdWRlL2xpbnV4L3BoeS9waHkuaAorKysgYi9pbmNsdWRlL2xpbnV4L3BoeS9waHkuaApA QCAtMTU4LDYgKzE1OCw3IEBAIGludCBwaHlfcG1fcnVudGltZV9nZXQoc3RydWN0IHBoeSAqcGh5 KTsKIGludCBwaHlfcG1fcnVudGltZV9nZXRfc3luYyhzdHJ1Y3QgcGh5ICpwaHkpOwogaW50IHBo eV9wbV9ydW50aW1lX3B1dChzdHJ1Y3QgcGh5ICpwaHkpOwogaW50IHBoeV9wbV9ydW50aW1lX3B1 dF9zeW5jKHN0cnVjdCBwaHkgKnBoeSk7Citib29sIHBoeV9wbV9ydW50aW1lX2VuYWJsZWQoc3Ry dWN0IHBoeSAqcGh5KTsKIHZvaWQgcGh5X3BtX3J1bnRpbWVfYWxsb3coc3RydWN0IHBoeSAqcGh5 KTsKIHZvaWQgcGh5X3BtX3J1bnRpbWVfZm9yYmlkKHN0cnVjdCBwaHkgKnBoeSk7CiBpbnQgcGh5 X2luaXQoc3RydWN0IHBoeSAqcGh5KTsKQEAgLTI0MCw2ICsyNDEsMTEgQEAgc3RhdGljIGlubGlu ZSBpbnQgcGh5X3BtX3J1bnRpbWVfcHV0X3N5bmMoc3RydWN0IHBoeSAqcGh5KQogCXJldHVybiAt RU5PU1lTOwogfQogCitzdGF0aWMgaW5saW5lIGJvb2wgcGh5X3BtX3J1bnRpbWVfZW5hYmxlZChz dHJ1Y3QgcGh5ICpwaHkpCit7CisJcmV0dXJuIGZhbHNlCit9CisKIHN0YXRpYyBpbmxpbmUgdm9p ZCBwaHlfcG1fcnVudGltZV9hbGxvdyhzdHJ1Y3QgcGh5ICpwaHkpCiB7CiAJcmV0dXJuOwo=