From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eduardo Valentin Subject: [PATCH 23/50] staging: omap-thermal: add documentation for omap_bandgap_adc_to_mcelsius Date: Fri, 15 Mar 2013 09:00:11 -0400 Message-ID: <1363352438-15935-24-git-send-email-eduardo.valentin@ti.com> References: <1363352438-15935-1-git-send-email-eduardo.valentin@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:50402 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754967Ab3CONJm (ORCPT ); Fri, 15 Mar 2013 09:09:42 -0400 In-Reply-To: <1363352438-15935-1-git-send-email-eduardo.valentin@ti.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: gregkh@linuxfoundation.org Cc: devel@driverdev.osuosl.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Eduardo Valentin Document the conversion function. Signed-off-by: Eduardo Valentin --- drivers/staging/omap-thermal/omap-bandgap.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c index 0068c66..8279cca 100644 --- a/drivers/staging/omap-thermal/omap-bandgap.c +++ b/drivers/staging/omap-thermal/omap-bandgap.c @@ -233,6 +233,17 @@ static irqreturn_t omap_bandgap_tshut_irq_handler(int irq, void *data) /*** Helper functions which manipulate conversion ADC <-> mi Celsius ***/ +/** + * omap_bandgap_adc_to_mcelsius() - converts an ADC value to mCelsius scale + * @bg_ptr: struct omap_bandgap pointer + * @id: sensor id + * @adc_val: value in ADC representation + * @t: address where to write the resulting temperature in mCelsius + * + * Simple conversion from ADC representation to mCelsius. In case the ADC value + * is out of the ADC conv table range, it returns -ERANGE, 0 on success. + * The conversion table is indexed by the ADC values. + */ static int omap_bandgap_adc_to_mcelsius(struct omap_bandgap *bg_ptr, int id, int adc_val, int *t) -- 1.7.7.1.488.ge8e1c