From: Calvin Johnson <calvin.johnson@oss.nxp.com>
To: Grant Likely <grant.likely@arm.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Jeremy Linton <jeremy.linton@arm.com>,
Andrew Lunn <andrew@lunn.ch>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Cristi Sovaiala <cristian.sovaiala@nxp.com>,
Florin Laurentiu Chiculita <florinlaurentiu.chiculita@nxp.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>,
Madalin Bucur <madalin.bucur@oss.nxp.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Marcin Wojtas <mw@semihalf.com>,
Pieter Jansen Van Vuuren <pieter.jansenvv@bamboosystems.io>,
Jon <jon@solid-run.com>, Saravana Kannan <saravanak@google.com>,
Randy Dunlap <rdunlap@infradead.org>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>,
linux-kernel@vger.kernel.org, linux.cj@gmail.com,
Diana Madalina Craciun <diana.craciun@nxp.com>,
netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-acpi@vger.kernel.org,
Calvin Johnson <calvin.johnson@oss.nxp.com>,
Len Brown <lenb@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: [net-next PATCH v5 09/15] ACPI: utils: Introduce acpi_get_local_address()
Date: Mon, 8 Feb 2021 20:42:38 +0530 [thread overview]
Message-ID: <20210208151244.16338-10-calvin.johnson@oss.nxp.com> (raw)
In-Reply-To: <20210208151244.16338-1-calvin.johnson@oss.nxp.com>
Introduce a wrapper around the _ADR evaluation.
Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
---
Changes in v5:
- Replace fwnode_get_id() with acpi_get_local_address()
Changes in v4:
- Improve code structure to handle all cases
Changes in v3:
- Modified to retrieve reg property value for ACPI as well
- Resolved compilation issue with CONFIG_ACPI = n
- Added more info into documentation
Changes in v2: None
drivers/acpi/utils.c | 14 ++++++++++++++
include/linux/acpi.h | 7 +++++++
2 files changed, 21 insertions(+)
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index d5411a166685..0d3a2b111c0f 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -296,6 +296,20 @@ acpi_evaluate_integer(acpi_handle handle,
EXPORT_SYMBOL(acpi_evaluate_integer);
+int acpi_get_local_address(acpi_handle handle, u32 *addr)
+{
+ unsigned long long adr;
+ acpi_status status;
+
+ status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &adr);
+ if (ACPI_FAILURE(status))
+ return -ENODATA;
+
+ *addr = (u32)adr;
+ return 0;
+}
+EXPORT_SYMBOL(acpi_get_local_address);
+
acpi_status
acpi_evaluate_reference(acpi_handle handle,
acpi_string pathname,
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 053bf05fb1f7..4e5ce2b4a69d 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -699,6 +699,8 @@ static inline u64 acpi_arch_get_root_pointer(void)
}
#endif
+int acpi_get_local_address(acpi_handle handle, u32 *addr);
+
#else /* !CONFIG_ACPI */
#define acpi_disabled 1
@@ -946,6 +948,11 @@ static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
return NULL;
}
+static inline int acpi_get_local_address(acpi_handle handle, u32 *addr)
+{
+ return -ENODEV;
+}
+
#endif /* !CONFIG_ACPI */
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
--
2.17.1
next prev parent reply other threads:[~2021-02-08 16:50 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-08 15:12 [net-next PATCH v5 00/15] ACPI support for dpaa2 driver Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 01/15] Documentation: ACPI: DSD: Document MDIO PHY Calvin Johnson
2021-02-08 20:01 ` Randy Dunlap
2021-02-09 14:34 ` Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 02/15] net: phy: Introduce fwnode_mdio_find_device() Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 03/15] net: phy: Introduce phy related fwnode functions Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 04/15] of: mdio: Refactor of_phy_find_device() Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 05/15] net: phy: Introduce fwnode_get_phy_id() Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 06/15] of: mdio: Refactor of_get_phy_id() Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 07/15] net: mdiobus: Introduce fwnode_mdiobus_register_phy() Calvin Johnson
2021-02-08 17:40 ` Russell King - ARM Linux admin
2021-02-09 15:04 ` Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 08/15] of: mdio: Refactor of_mdiobus_register_phy() Calvin Johnson
2021-02-08 15:12 ` Calvin Johnson [this message]
2021-02-08 15:12 ` [net-next PATCH v5 10/15] net: mdio: Add ACPI support code for mdio Calvin Johnson
2021-02-08 16:16 ` Andy Shevchenko
2021-02-08 15:12 ` [net-next PATCH v5 11/15] net: mdiobus: Introduce fwnode_mdiobus_register() Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 12/15] net/fsl: Use fwnode_mdiobus_register() Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 13/15] phylink: introduce phylink_fwnode_phy_connect() Calvin Johnson
2021-02-08 15:31 ` Russell King - ARM Linux admin
2021-02-15 5:55 ` Calvin Johnson
2021-02-15 6:01 ` Calvin Johnson
2021-02-08 16:20 ` Russell King - ARM Linux admin
2021-02-08 15:12 ` [net-next PATCH v5 14/15] net: phylink: Refactor phylink_of_phy_connect() Calvin Johnson
2021-02-08 15:12 ` [net-next PATCH v5 15/15] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Calvin Johnson
2021-02-08 16:21 ` Andy Shevchenko
2021-02-08 16:28 ` Russell King - ARM Linux admin
2021-02-15 12:33 ` Calvin Johnson
2021-02-15 15:13 ` Andy Shevchenko
2021-02-15 15:15 ` Andy Shevchenko
2021-02-16 9:59 ` Calvin Johnson
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