From mboxrd@z Thu Jan 1 00:00:00 1970 From: robherring2@gmail.com (Rob Herring) Date: Thu, 29 May 2014 17:40:19 -0500 Subject: [PATCH v2 09/11] ARM: timer-sp: allow getting timer1 clock from DT to fallback to legacy clock In-Reply-To: <1401403221-27523-1-git-send-email-robherring2@gmail.com> References: <1401403221-27523-1-git-send-email-robherring2@gmail.com> Message-ID: <1401403221-27523-10-git-send-email-robherring2@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Rob Herring The sp804 clocks may be specified in DT, but the kernel may still be using legacy clocks. This is handled if a single clock for sp804 is present, but not when 3 clocks are present. This prevents Versatile platforms from breaking when the DT has clocks added. Signed-off-by: Rob Herring Cc: Russell King --- v2: - New patch necessary to handle DT with 3 clocks in sp804 node and still use the legacy non-DT clocks. arch/arm/common/timer-sp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c index fd6bff0..1921132 100644 --- a/arch/arm/common/timer-sp.c +++ b/arch/arm/common/timer-sp.c @@ -233,13 +233,13 @@ static void __init sp804_of_init(struct device_node *np) if (IS_ERR(clk1)) clk1 = NULL; - /* Get the 2nd clock if the timer has 2 timer clocks */ + /* Get the 2nd clock if the timer has 3 timer clocks */ if (of_count_phandle_with_args(np, "clocks", "#clock-cells") == 3) { clk2 = of_clk_get(np, 1); if (IS_ERR(clk2)) { pr_err("sp804: %s clock not found: %d\n", np->name, (int)PTR_ERR(clk2)); - goto err; + clk2 = NULL; } } else clk2 = clk1; -- 1.9.1