ath79: add new ar934x spi driver

[openwrt/staging/chunkeey.git] / target / linux / ath79 / patches-4.19 / 0050-v5.1-drivers-provide-devm_platform_ioremap_resource.patch

diff --git a/target/linux/ath79/patches-4.19/0050-v5.1-drivers-provide-devm_platform_ioremap_resource.patch b/target/linux/ath79/patches-4.19/0050-v5.1-drivers-provide-devm_platform_ioremap_resource.patch
new file mode 100644 (file)
index 0000000..a52addb
--- /dev/null
+++ b/target/linux/ath79/patches-4.19/0050-v5.1-drivers-provide-devm_platform_ioremap_resource.patch
@@ -0,0 +1,61 @@
+From 7945f929f1a77a1c8887a97ca07f87626858ff42 Mon Sep 17 00:00:00 2001
+From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+Date: Wed, 20 Feb 2019 11:12:39 +0000
+Subject: [PATCH] drivers: provide devm_platform_ioremap_resource()
+
+There are currently 1200+ instances of using platform_get_resource()
+and devm_ioremap_resource() together in the kernel tree.
+
+This patch wraps these two calls in a single helper. Thanks to that
+we don't have to declare a local variable for struct resource * and can
+omit the redundant argument for resource type. We also have one
+function call less.
+
+Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ drivers/base/platform.c         | 18 ++++++++++++++++++
+ include/linux/platform_device.h |  3 +++
+ 2 files changed, 21 insertions(+)
+
+--- a/drivers/base/platform.c
++++ b/drivers/base/platform.c
+@@ -80,6 +80,24 @@ struct resource *platform_get_resource(s
+ EXPORT_SYMBOL_GPL(platform_get_resource);
+ 
+ /**
++ * devm_platform_ioremap_resource - call devm_ioremap_resource() for a platform
++ *                                device
++ *
++ * @pdev: platform device to use both for memory resource lookup as well as
++ *        resource managemend
++ * @index: resource index
++ */
++void __iomem *devm_platform_ioremap_resource(struct platform_device *pdev,
++                                           unsigned int index)
++{
++      struct resource *res;
++
++      res = platform_get_resource(pdev, IORESOURCE_MEM, index);
++      return devm_ioremap_resource(&pdev->dev, res);
++}
++EXPORT_SYMBOL_GPL(devm_platform_ioremap_resource);
++
++/**
+  * platform_get_irq - get an IRQ for a device
+  * @dev: platform device
+  * @num: IRQ number index
+--- a/include/linux/platform_device.h
++++ b/include/linux/platform_device.h
+@@ -51,6 +51,9 @@ extern struct device platform_bus;
+ extern void arch_setup_pdev_archdata(struct platform_device *);
+ extern struct resource *platform_get_resource(struct platform_device *,
+                                             unsigned int, unsigned int);
++extern void __iomem *
++devm_platform_ioremap_resource(struct platform_device *pdev,
++                             unsigned int index);
+ extern int platform_get_irq(struct platform_device *, unsigned int);
+ extern int platform_irq_count(struct platform_device *);
+ extern struct resource *platform_get_resource_byname(struct platform_device *,