diff options
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.patch | 192 |
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); |