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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 03/18] pci: add pci_select_bars() helper
Date: Thu,  4 May 2023 10:17:30 +0200	[thread overview]
Message-ID: <20230504081745.305841-4-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20230504081745.305841-1-s.hauer@pengutronix.de>

pci_select_bars() will be needed later in the updated RTL8169 driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/pci/pci.c   | 16 ++++++++++++++++
 include/linux/pci.h |  1 +
 2 files changed, 17 insertions(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 53e8faeb3e..57a7a75f84 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -539,6 +539,22 @@ int pci_enable_device(struct pci_dev *dev)
 }
 EXPORT_SYMBOL(pci_enable_device);
 
+/**
+ * pci_select_bars - Make BAR mask from the type of resource
+ * @dev: the PCI device for which BAR mask is made
+ * @flags: resource type mask to be selected
+ *
+ * This helper routine makes bar mask from the type of resource.
+ */
+int pci_select_bars(struct pci_dev *dev, unsigned long flags)
+{
+	int i, bars = 0;
+	for (i = 0; i < PCI_NUM_RESOURCES; i++)
+		if (pci_resource_flags(dev, i) & flags)
+			bars |= (1 << i);
+	return bars;
+}
+
 static u8 __pci_find_next_cap_ttl(struct pci_bus *bus, unsigned int devfn,
 				  u8 pos, int cap, int *ttl)
 {
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 31488bf8ac..98d056624f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -326,6 +326,7 @@ static inline int pci_write_config_dword(const struct pci_dev *dev, int where,
 void pci_set_master(struct pci_dev *dev);
 void pci_clear_master(struct pci_dev *dev);
 int pci_enable_device(struct pci_dev *dev);
+int pci_select_bars(struct pci_dev *dev, unsigned long flags);
 
 u8 pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap);
 u8 pci_find_capability(struct pci_dev *dev, int cap);
-- 
2.39.2




  parent reply	other threads:[~2023-05-04  8:19 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-04  8:17 [PATCH 00/18] Add Rockchip RK3588 support Sascha Hauer
2023-05-04  8:17 ` [PATCH 01/18] firmware: make drivers/firmware/ obj-y Sascha Hauer
2023-05-04  8:17 ` [PATCH 02/18] stddef: add sizeof_field() Sascha Hauer
2023-05-04  8:17 ` Sascha Hauer [this message]
2023-05-04  8:17 ` [PATCH 04/18] pci: set upper word for 64bit base addresses Sascha Hauer
2023-05-04  8:17 ` [PATCH 05/18] ARM: SCMI: Use correct smc/hvc instructions on ARM64 Sascha Hauer
2023-05-04  8:17 ` [PATCH 06/18] clk: rockchip: Add rk3588 support Sascha Hauer
2023-05-04  8:17 ` [PATCH 07/18] pinctrl: rockchip: Move struct definitions to separate header file Sascha Hauer
2023-05-04  8:17 ` [PATCH 08/18] pinctrl/gpio: rockchip: separate gpio from pinctrl driver Sascha Hauer
2023-05-04  8:17 ` [PATCH 09/18] pinctrl: Update pinctrl-rockchip from kernel Sascha Hauer
2023-05-04  8:17 ` [PATCH 10/18] phy: rockchip: naneng-combphy: add rk3588 support Sascha Hauer
2023-05-04  8:17 ` [PATCH 11/18] reset: Implement reset array support Sascha Hauer
2023-05-04  8:17 ` [PATCH 12/18] pci: designware: add rockchip support Sascha Hauer
2023-05-04  8:17 ` [PATCH 13/18] phy: realtek: Add RTL8125 internal phy support Sascha Hauer
2023-05-04  8:17 ` [PATCH 14/18] net: Update Realtek r8169 driver Sascha Hauer
2023-05-04  8:17 ` [PATCH 15/18] ARM: rockchip: Add rk3588 support Sascha Hauer
2023-05-04  8:17 ` [PATCH 16/18] ARM: dts: Add rk3588 device trees Sascha Hauer
2023-05-04  8:17 ` [PATCH 17/18] ARM: rockchip: rk3588: add memsize detection Sascha Hauer
2023-05-04  8:17 ` [PATCH 18/18] ARM: rockchip: Add Radxa ROCK 5B support Sascha Hauer
2023-05-04  9:36   ` Ahmad Fatoum
2023-05-04 10:08     ` Sascha Hauer

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