From 760b7170c5e44c771397eaf57b7197b621373809 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 6 Jul 2018 10:27:31 -0600 Subject: [PATCH] dtoc: Fix properties with a single zero-arg phandle At present a property with a single phandle looks like an integer value to dtoc. Correct this by adjusting it in the phandle-processing code. Add a test for this. Signed-off-by: Simon Glass --- tools/dtoc/dtb_platdata.py | 12 ++++++++---- tools/dtoc/dtoc_test_phandle.dts | 6 ++++++ tools/dtoc/test_dtoc.py | 10 ++++++++++ tools/dtoc/test_fdt.py | 4 +++- 4 files changed, 27 insertions(+), 5 deletions(-) diff --git a/tools/dtoc/dtb_platdata.py b/tools/dtoc/dtb_platdata.py index 2f7302e529..b1323aef19 100644 --- a/tools/dtoc/dtb_platdata.py +++ b/tools/dtoc/dtb_platdata.py @@ -211,15 +211,21 @@ class DtbPlatdata(object): Number of argument cells is this is a phandle, else None """ if prop.name in ['clocks']: + if not isinstance(prop.value, list): + prop.value = [prop.value] val = prop.value - if not isinstance(val, list): - val = [val] i = 0 max_args = 0 args = [] while i < len(val): phandle = fdt_util.fdt32_to_cpu(val[i]) + # If we get to the end of the list, stop. This can happen + # since some nodes have more phandles in the list than others, + # but we allocate enough space for the largest list. So those + # nodes with shorter lists end up with zeroes at the end. + if not phandle: + break target = self._fdt.phandle_to_node.get(phandle) if not target: raise ValueError("Cannot parse '%s' in node '%s'" % @@ -400,8 +406,6 @@ class DtbPlatdata(object): continue info = self.get_phandle_argc(prop, node.name) if info: - if not isinstance(prop.value, list): - prop.value = [prop.value] # Process the list as pairs of (phandle, id) pos = 0 for args in info.args: diff --git a/tools/dtoc/dtoc_test_phandle.dts b/tools/dtoc/dtoc_test_phandle.dts index 91dfec5c63..a71acffc69 100644 --- a/tools/dtoc/dtoc_test_phandle.dts +++ b/tools/dtoc/dtoc_test_phandle.dts @@ -33,4 +33,10 @@ compatible = "source"; clocks = <&phandle &phandle_1 11 &phandle_2 12 13 &phandle>; }; + + phandle-source2 { + u-boot,dm-pre-reloc; + compatible = "source"; + clocks = <&phandle>; + }; }; diff --git a/tools/dtoc/test_dtoc.py b/tools/dtoc/test_dtoc.py index 20fea522c4..11cac3fc7a 100644 --- a/tools/dtoc/test_dtoc.py +++ b/tools/dtoc/test_dtoc.py @@ -323,6 +323,16 @@ U_BOOT_DEVICE(phandle_source) = { \t.platdata_size\t= sizeof(dtv_phandle_source), }; +static struct dtd_source dtv_phandle_source2 = { +\t.clocks\t\t\t= { +\t\t\t{&dtv_phandle_target, {}},}, +}; +U_BOOT_DEVICE(phandle_source2) = { +\t.name\t\t= "source", +\t.platdata\t= &dtv_phandle_source2, +\t.platdata_size\t= sizeof(dtv_phandle_source2), +}; + ''', data) def test_aliases(self): diff --git a/tools/dtoc/test_fdt.py b/tools/dtoc/test_fdt.py index 9fef8ed549..49d188b1c1 100755 --- a/tools/dtoc/test_fdt.py +++ b/tools/dtoc/test_fdt.py @@ -210,7 +210,9 @@ class TestProp(unittest.TestCase): def testPhandle(self): dtb = fdt.FdtScan('tools/dtoc/dtoc_test_phandle.dts') - node = dtb.GetNode('/phandle-source') + node = dtb.GetNode('/phandle-source2') + prop = node.props['clocks'] + self.assertTrue(fdt32_to_cpu(prop.value) > 0) def _ConvertProp(self, prop_name): """Helper function to look up a property in self.node and return it -- 2.25.1