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authorLuka Perkov <luka@openwrt.org>2014-02-11 02:07:44 +0000
committerLuka Perkov <luka@openwrt.org>2014-02-11 02:07:44 +0000
commitc9ae111a20be4c9555128cced8edded660d133df (patch)
treefd4809b562d454394cbb9ec517bf3f1ef2d5b6f2 /target/linux/mvebu/patches-3.10/0189-of-irq-create-interrupts-extended-property.patch
parent3af779eb172b0438f77e8a01a97dd0eb9a146076 (diff)
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mvebu: backport mainline patches from kernel 3.13
This is a backport of the patches accepted to the Linux mainline related to mvebu SoC (Armada XP and Armada 370) between Linux v3.12, and Linux v3.13. This work mainly covers: * Finishes work for sharing the pxa nand driver(drivers/mtd/nand/pxa3xx_nand.c) between the PXA family, and the Armada family. * timer initialization update, and access function for the Armada family. * Generic IRQ handling backporting. * Some bug fixes. Signed-off-by: Seif Mazareeb <seif.mazareeb@gmail.com> CC: Luka Perkov <luka@openwrt.org> SVN-Revision: 39566
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0189-of-irq-create-interrupts-extended-property.patch')
-rw-r--r--target/linux/mvebu/patches-3.10/0189-of-irq-create-interrupts-extended-property.patch192
1 files changed, 192 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0189-of-irq-create-interrupts-extended-property.patch b/target/linux/mvebu/patches-3.10/0189-of-irq-create-interrupts-extended-property.patch
new file mode 100644
index 0000000000..7e2e2baa33
--- /dev/null
+++ b/target/linux/mvebu/patches-3.10/0189-of-irq-create-interrupts-extended-property.patch
@@ -0,0 +1,192 @@
+From efd4032754a57bc258eafe30fde684ec47dc36e1 Mon Sep 17 00:00:00 2001
+From: Grant Likely <grant.likely@linaro.org>
+Date: Thu, 19 Dec 2013 09:31:00 -0300
+Subject: [PATCH 189/203] of/irq: create interrupts-extended property
+
+The standard interrupts property in device tree can only handle
+interrupts coming from a single interrupt parent. If a device is wired
+to multiple interrupt controllers, then it needs to be attached to a
+node with an interrupt-map property to demux the interrupt specifiers
+which is confusing. It would be a lot easier if there was a form of the
+interrupts property that allows for a separate interrupt phandle for
+each interrupt specifier.
+
+This patch does exactly that by creating a new interrupts-extended
+property which reuses the phandle+arguments pattern used by GPIOs and
+other core bindings.
+
+Signed-off-by: Grant Likely <grant.likely@linaro.org>
+Acked-by: Tony Lindgren <tony@atomide.com>
+Acked-by: Kumar Gala <galak@codeaurora.org>
+[grant.likely: removed versatile platform hunks into separate patch]
+Cc: Rob Herring <rob.herring@calxeda.com>
+
+Conflicts:
+ arch/arm/boot/dts/testcases/tests-interrupts.dtsi
+ drivers/of/selftest.c
+---
+ drivers/of/selftest.c | 146 +++++++++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 145 insertions(+), 1 deletion(-)
+
+--- a/drivers/of/selftest.c
++++ b/drivers/of/selftest.c
+@@ -154,6 +154,147 @@ static void __init of_selftest_property_
+ selftest(rc == -EILSEQ, "unterminated string; rc=%i", rc);
+ }
+
++static void __init of_selftest_parse_interrupts(void)
++{
++ struct device_node *np;
++ struct of_phandle_args args;
++ int i, rc;
++
++ np = of_find_node_by_path("/testcase-data/interrupts/interrupts0");
++ if (!np) {
++ pr_err("missing testcase data\n");
++ return;
++ }
++
++ for (i = 0; i < 4; i++) {
++ bool passed = true;
++ args.args_count = 0;
++ rc = of_irq_parse_one(np, i, &args);
++
++ passed &= !rc;
++ passed &= (args.args_count == 1);
++ passed &= (args.args[0] == (i + 1));
++
++ selftest(passed, "index %i - data error on node %s rc=%i\n",
++ i, args.np->full_name, rc);
++ }
++ of_node_put(np);
++
++ np = of_find_node_by_path("/testcase-data/interrupts/interrupts1");
++ if (!np) {
++ pr_err("missing testcase data\n");
++ return;
++ }
++
++ for (i = 0; i < 4; i++) {
++ bool passed = true;
++ args.args_count = 0;
++ rc = of_irq_parse_one(np, i, &args);
++
++ /* Test the values from tests-phandle.dtsi */
++ switch (i) {
++ case 0:
++ passed &= !rc;
++ passed &= (args.args_count == 1);
++ passed &= (args.args[0] == 9);
++ break;
++ case 1:
++ passed &= !rc;
++ passed &= (args.args_count == 3);
++ passed &= (args.args[0] == 10);
++ passed &= (args.args[1] == 11);
++ passed &= (args.args[2] == 12);
++ break;
++ case 2:
++ passed &= !rc;
++ passed &= (args.args_count == 2);
++ passed &= (args.args[0] == 13);
++ passed &= (args.args[1] == 14);
++ break;
++ case 3:
++ passed &= !rc;
++ passed &= (args.args_count == 2);
++ passed &= (args.args[0] == 15);
++ passed &= (args.args[1] == 16);
++ break;
++ default:
++ passed = false;
++ }
++ selftest(passed, "index %i - data error on node %s rc=%i\n",
++ i, args.np->full_name, rc);
++ }
++ of_node_put(np);
++}
++
++static void __init of_selftest_parse_interrupts_extended(void)
++{
++ struct device_node *np;
++ struct of_phandle_args args;
++ int i, rc;
++
++ np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0");
++ if (!np) {
++ pr_err("missing testcase data\n");
++ return;
++ }
++
++ for (i = 0; i < 7; i++) {
++ bool passed = true;
++ rc = of_irq_parse_one(np, i, &args);
++
++ /* Test the values from tests-phandle.dtsi */
++ switch (i) {
++ case 0:
++ passed &= !rc;
++ passed &= (args.args_count == 1);
++ passed &= (args.args[0] == 1);
++ break;
++ case 1:
++ passed &= !rc;
++ passed &= (args.args_count == 3);
++ passed &= (args.args[0] == 2);
++ passed &= (args.args[1] == 3);
++ passed &= (args.args[2] == 4);
++ break;
++ case 2:
++ passed &= !rc;
++ passed &= (args.args_count == 2);
++ passed &= (args.args[0] == 5);
++ passed &= (args.args[1] == 6);
++ break;
++ case 3:
++ passed &= !rc;
++ passed &= (args.args_count == 1);
++ passed &= (args.args[0] == 9);
++ break;
++ case 4:
++ passed &= !rc;
++ passed &= (args.args_count == 3);
++ passed &= (args.args[0] == 10);
++ passed &= (args.args[1] == 11);
++ passed &= (args.args[2] == 12);
++ break;
++ case 5:
++ passed &= !rc;
++ passed &= (args.args_count == 2);
++ passed &= (args.args[0] == 13);
++ passed &= (args.args[1] == 14);
++ break;
++ case 6:
++ passed &= !rc;
++ passed &= (args.args_count == 1);
++ passed &= (args.args[0] == 15);
++ break;
++ default:
++ passed = false;
++ }
++
++ selftest(passed, "index %i - data error on node %s rc=%i\n",
++ i, args.np->full_name, rc);
++ }
++ of_node_put(np);
++}
++
+ static int __init of_selftest(void)
+ {
+ struct device_node *np;
+@@ -168,7 +309,10 @@ static int __init of_selftest(void)
+ pr_info("start of selftest - you will see error messages\n");
+ of_selftest_parse_phandle_with_args();
+ of_selftest_property_match_string();
+- pr_info("end of selftest - %s\n", selftest_passed ? "PASS" : "FAIL");
++ of_selftest_parse_interrupts();
++ of_selftest_parse_interrupts_extended();
++ pr_info("end of selftest - %i passed, %i failed\n",
++ selftest_results.passed, selftest_results.failed);
+ return 0;
+ }
+ late_initcall(of_selftest);