From: vaibhav.hiremath@linaro•org (Vaibhav Hiremath)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH-v5 5/5] i2c: pxa: Add ILCR (tLow & tHigh) configuration support
Date: Wed, 05 Aug 2015 14:21:26 +0530 [thread overview]
Message-ID: <55C1CE8E.9000601@linaro.org> (raw)
In-Reply-To: <1437482466-16126-6-git-send-email-vaibhav.hiremath@linaro.org>
On Tuesday 21 July 2015 06:11 PM, Vaibhav Hiremath wrote:
> With addition of PXA910 family of devices, the TWSI module supports
> SCL clock adjustment using ILCR register.
>
> This patch enables the control and configuration of ICLR through DT
> properties,
>
> i2c-sclk-high-time-ns:
> SCLK high time (tHigh), for standard/fast/high speed mode
> i2c-sclk-low-time-ns:
> SCLK low time (tLow), for standard/fast/high speed mode
>
> Note that in case of standard and fast mod, the tLow and tHigh counters
> are same, and software will use tLow value.
>
> Also, brought up devm_clk_get() fn above i2c_pxa_probe_dt(), as it
> uses clk rate for timing calculations.
>
> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro•org>
> Signed-off-by: Jett.Zhou <jtzhou@marvell•com>
> Signed-off-by: Yi Zhang <yizhang@marvell•com>
> ---
> drivers/i2c/busses/i2c-pxa.c | 69 ++++++++++++++++++++++++++++++++++++++++----
> 1 file changed, 63 insertions(+), 6 deletions(-)
>
Robert,
It would be helpful if you can test this patch-series and confirm that
it now fixes the NULL pointer deference issue.
Thanks,
Vaibhav
next prev parent reply other threads:[~2015-08-05 8:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-21 12:41 [PATCH-v5 0/5] i2c: pxa: Add support for PXA910 family of device Vaibhav Hiremath
2015-07-21 12:41 ` [PATCH-v5 1/5] Documentation: binding: add new property 'disable_after_xfer' to i2c-pxa Vaibhav Hiremath
2015-07-27 14:09 ` Matt Porter
2015-08-05 6:34 ` Vaibhav Hiremath
2015-08-05 8:49 ` Wolfram Sang
2015-08-05 9:41 ` Vaibhav Hiremath
2015-08-05 14:24 ` Matt Porter
2015-08-05 14:20 ` Matt Porter
2015-08-05 14:24 ` Vaibhav Hiremath
2015-07-21 12:41 ` [PATCH-v5 2/5] i2c: pxa: enable/disable i2c module across msg xfer Vaibhav Hiremath
2015-08-05 10:46 ` Shubhrajyoti Datta
2015-08-05 12:42 ` Vaibhav Hiremath
2015-07-21 12:41 ` [PATCH-v5 3/5] i2c: pxa: Add support for pxa910/988 & new configuration features Vaibhav Hiremath
2015-07-21 12:41 ` [PATCH-v5 4/5] Documentation: binding: add sclk adjustment properties to i2c-pxa Vaibhav Hiremath
2015-07-27 14:11 ` Matt Porter
2015-08-05 6:29 ` Vaibhav Hiremath
2015-07-21 12:41 ` [PATCH-v5 5/5] i2c: pxa: Add ILCR (tLow & tHigh) configuration support Vaibhav Hiremath
2015-08-05 8:51 ` Vaibhav Hiremath [this message]
2015-08-05 19:11 ` Robert Jarzmik
2015-08-06 5:45 ` Vaibhav Hiremath
2015-08-09 12:18 ` Robert Jarzmik
2015-08-09 16:53 ` Vaibhav Hiremath
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