From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Wahren Subject: [PATCH V10 2/6] thermal: of-thermal: Implement signed coefficient support Date: Fri, 3 Mar 2017 23:18:45 +0000 Message-ID: <1488583129-4159-3-git-send-email-stefan.wahren@i2se.com> References: <1488583129-4159-1-git-send-email-stefan.wahren@i2se.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1488583129-4159-1-git-send-email-stefan.wahren@i2se.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Eric Anholt , Zhang Rui , Eduardo Valentin Cc: Stefan Wahren , devicetree@vger.kernel.org, Florian Fainelli , linux-pm@vger.kernel.org, Catalin Marinas , Will Deacon , Rob Herring , linux-rpi-kernel@lists.infradead.org, Martin Sperl , Frank Rowand , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org Use the new function of_property_read_s32_array() to prepare of-thermal for negative coefficients. These are used by the upcoming bcm2835_thermal driver. Signed-off-by: Stefan Wahren --- drivers/thermal/of-thermal.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index d04ec3b..491d58a 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -821,7 +821,8 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) struct device_node *child = NULL, *gchild; struct __thermal_zone *tz; int ret, i; - u32 prop, coef[2]; + u32 prop; + s32 coef[2]; if (!np) { pr_err("no thermal zone np\n"); @@ -851,7 +852,7 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) * one sensor per thermal zone. Thus, we are considering * only the first two values as slope and offset. */ - ret = of_property_read_u32_array(np, "coefficients", coef, 2); + ret = of_property_read_s32_array(np, "coefficients", coef, 2); if (ret == 0) { tz->slope = coef[0]; tz->offset = coef[1]; -- 1.7.9.5