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[24.155.109.49]) by smtp.googlemail.com with ESMTPSA id u21-v6sm2296053oie.22.2018.09.05.12.37.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 05 Sep 2018 12:37:42 -0700 (PDT) From: Rob Herring To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Frank Rowand Subject: [PATCH 02/21] of: Support matching cpu nodes with no 'reg' property Date: Wed, 5 Sep 2018 14:37:19 -0500 Message-Id: <20180905193738.19325-3-robh@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180905193738.19325-1-robh@kernel.org> References: <20180905193738.19325-1-robh@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For some single core ARM systems, the DTs can have a single cpu node without a reg property and #address-cells == 0. This case is valid and should match on cpu #0. Cc: Frank Rowand Signed-off-by: Rob Herring --- drivers/of/base.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.17.1 diff --git a/drivers/of/base.c b/drivers/of/base.c index 70609d5a2506..6389aeb2f48c 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -327,6 +327,8 @@ static bool __of_find_n_match_cpu_property(struct device_node *cpun, ac = of_n_addr_cells(cpun); cell = of_get_property(cpun, prop_name, &prop_len); + if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0)) + return true; if (!cell || !ac) return false; prop_len /= sizeof(*cell) * ac;