From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: patch "iio: adc: at91_adc: allow to use full range of startup time" added to staging-linus To: leupold@rsi-elektrotechnik.de, Stable@vger.kernel.org, alexandre.belloni@free-electrons.com, jic23@kernel.org, nicolas.ferre@atmel.com From: Date: Thu, 23 Jul 2015 13:33:05 -0700 Message-ID: <14376835857851@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled iio: adc: at91_adc: allow to use full range of startup time to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >>From 815983e9afcb21552e1b9d77e3755d394cbf5249 Mon Sep 17 00:00:00 2001 From: Jan Leupold Date: Wed, 17 Jun 2015 18:21:36 +0200 Subject: iio: adc: at91_adc: allow to use full range of startup time The DT-Property "atmel,adc-startup-time" is stored in an u8 for a microsecond value. When trying to increase the value of STARTUP in Register AT91_ADC_MR some higher values can't be reached. Change the type in function parameter and private structure field from u8 to u32. Signed-off-by: Jan Leupold [nicolas.ferre@atmel.com: change commit message, increase u16 to u32 for startup time] Signed-off-by: Nicolas Ferre Acked-by: Alexandre Belloni Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/adc/at91_adc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 8a0eb4a04fb5..7b40925dd4ff 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -182,7 +182,7 @@ struct at91_adc_caps { u8 ts_pen_detect_sensitivity; /* startup time calculate function */ - u32 (*calc_startup_ticks)(u8 startup_time, u32 adc_clk_khz); + u32 (*calc_startup_ticks)(u32 startup_time, u32 adc_clk_khz); u8 num_channels; struct at91_adc_reg_desc registers; @@ -201,7 +201,7 @@ struct at91_adc_state { u8 num_channels; void __iomem *reg_base; struct at91_adc_reg_desc *registers; - u8 startup_time; + u32 startup_time; u8 sample_hold_time; bool sleep_mode; struct iio_trigger **trig; @@ -779,7 +779,7 @@ ret: return ret; } -static u32 calc_startup_ticks_9260(u8 startup_time, u32 adc_clk_khz) +static u32 calc_startup_ticks_9260(u32 startup_time, u32 adc_clk_khz) { /* * Number of ticks needed to cover the startup time of the ADC @@ -790,7 +790,7 @@ static u32 calc_startup_ticks_9260(u8 startup_time, u32 adc_clk_khz) return round_up((startup_time * adc_clk_khz / 1000) - 1, 8) / 8; } -static u32 calc_startup_ticks_9x5(u8 startup_time, u32 adc_clk_khz) +static u32 calc_startup_ticks_9x5(u32 startup_time, u32 adc_clk_khz) { /* * For sama5d3x and at91sam9x5, the formula changes to: -- 2.4.6