[U-Boot] [PATCH v3 1/5] spi: cadence_qspi: Ensure spi_calibration is run when sclk change

[Pavel Machek <pavel@denx.de>]

On Thu 2015-09-10 00:01:12, Chin Liang See wrote:
> Ensuring spi_calibration is run when there is a change of sclk
> frequency. This will ensure the qspi flash access works for high
> sclk frequency
> 
> Signed-off-by: Chin Liang See <clsee@altera.com>
> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
> Cc: Dinh Nguyen <dinh.linux@gmail.com>
> Cc: Marek Vasut <marex@denx.de>
> Cc: Stefan Roese <sr@denx.de>
> Cc: Vikas Manocha <vikas.manocha@st.com>
> Cc: Jagannadh Teki <jteki@openedev.com>

Acked-by: Pavel Machek <pavel@denx.de>

> --- a/drivers/spi/cadence_qspi.c
> +++ b/drivers/spi/cadence_qspi.c
> @@ -37,15 +37,18 @@ static int cadence_spi_write_speed(struct udevice *bus, uint hz)
>  }
> 
>  /* Calibration sequence to determine the read data capture delay register */
> -static int spi_calibration(struct udevice *bus)
> +static int spi_calibration(struct udevice *bus, uint hz)

I'd do "unsigned int" here, for consistency with

> @@ -38,6 +38,7 @@ struct cadence_spi_priv {
>  	int		qspi_is_init;
>  	unsigned int	qspi_calibrated_hz;
>  	unsigned int	qspi_calibrated_cs;
> +	unsigned int	previous_hz;
>  };

this, but that's nitpicking.

Thanks,
									Pavel
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