[U-Boot] [PATCH v2 3/3] rtc: pcf2127: Fixed bug with rtc settings and getting error time

Simon Glass sjg at chromium.org
Sat Jun 22 19:09:57 UTC 2019


On Fri, 24 May 2019 at 03:23, Chuanhua Han <chuanhua.han at nxp.com> wrote:
> The previous pcf2127 RTC chip could not read and set the correct time.
> When reading the data of internal registers, the read address was the
> value of register plus 1. This is because this chip requires the host
> to send a stop signal after setting the register address and before
> reading the register data.
> This patch sets the flag that the stop signal is needed and fixes the
> bug of the original read and write time.
> Signed-off-by: Biwen Li <biwen.li at nxp.com>
> Signed-off-by: Chuanhua Han <chuanhua.han at nxp.com>
> ---
> Changes in v2:
>         - Split the original patch into 3 patches
>         - Add detailed description information for each patch
>  drivers/rtc/pcf2127.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)

Can you modify this to use i2c_xfer() so that separate transactions are done?


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