| Message ID | 20241113-imx-spi-word-delay-v2-1-2b65b737bf29@pengutronix.de (mailing list archive) |
|---|---|
| State | In Next |
| Headers | show |
| Series | spi: imx: support word delay in ecspi | expand |
On Wed, Nov 13, 2024 at 01:18:31PM +0100, Jonas Rebmann wrote: > In an upcoming patch, mx51_ecspi_prepare_transfer() needs access to the > word_delay parameter. To enable controller-specific handling of such > per-transfer parameters, extend the prepare_transfer() function of the > spi_imx_devtype_data interface to take a struct spi_transfer argument, > update all controller-specific implementations accordingly. > > Signed-off-by: Jonas Rebmann <jre@pengutronix.dei Reviewed-by: Frank Li <Frank.Li@nxp.com> > --- > drivers/spi/spi-imx.c | 13 +++++++------ > 1 file changed, 7 insertions(+), 6 deletions(-) > > diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c > index 85bd1a82a34eb4bc76a4b4528e087fc2ebfa8b85..65a8303b80b1191cd2c19d61f88836e7fd3c7ae9 100644 > --- a/drivers/spi/spi-imx.c > +++ b/drivers/spi/spi-imx.c > @@ -71,7 +71,8 @@ struct spi_imx_data; > struct spi_imx_devtype_data { > void (*intctrl)(struct spi_imx_data *spi_imx, int enable); > int (*prepare_message)(struct spi_imx_data *spi_imx, struct spi_message *msg); > - int (*prepare_transfer)(struct spi_imx_data *spi_imx, struct spi_device *spi); > + int (*prepare_transfer)(struct spi_imx_data *spi_imx, struct spi_device *spi, > + struct spi_transfer *t); > void (*trigger)(struct spi_imx_data *spi_imx); > int (*rx_available)(struct spi_imx_data *spi_imx); > void (*reset)(struct spi_imx_data *spi_imx); > @@ -649,7 +650,7 @@ static void mx51_configure_cpha(struct spi_imx_data *spi_imx, > } > > static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx, > - struct spi_device *spi) > + struct spi_device *spi, struct spi_transfer *t) > { > u32 ctrl = readl(spi_imx->base + MX51_ECSPI_CTRL); > u32 clk; > @@ -774,7 +775,7 @@ static int mx31_prepare_message(struct spi_imx_data *spi_imx, > } > > static int mx31_prepare_transfer(struct spi_imx_data *spi_imx, > - struct spi_device *spi) > + struct spi_device *spi, struct spi_transfer *t) > { > unsigned int reg = MX31_CSPICTRL_ENABLE | MX31_CSPICTRL_HOST; > unsigned int clk; > @@ -878,7 +879,7 @@ static int mx21_prepare_message(struct spi_imx_data *spi_imx, > } > > static int mx21_prepare_transfer(struct spi_imx_data *spi_imx, > - struct spi_device *spi) > + struct spi_device *spi, struct spi_transfer *t) > { > unsigned int reg = MX21_CSPICTRL_ENABLE | MX21_CSPICTRL_HOST; > unsigned int max = is_imx27_cspi(spi_imx) ? 16 : 18; > @@ -953,7 +954,7 @@ static int mx1_prepare_message(struct spi_imx_data *spi_imx, > } > > static int mx1_prepare_transfer(struct spi_imx_data *spi_imx, > - struct spi_device *spi) > + struct spi_device *spi, struct spi_transfer *t) > { > unsigned int reg = MX1_CSPICTRL_ENABLE | MX1_CSPICTRL_HOST; > unsigned int clk; > @@ -1304,7 +1305,7 @@ static int spi_imx_setupxfer(struct spi_device *spi, > spi_imx->target_burst = t->len; > } > > - spi_imx->devtype_data->prepare_transfer(spi_imx, spi); > + spi_imx->devtype_data->prepare_transfer(spi_imx, spi, t); > > return 0; > } > > -- > 2.39.5 >
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 85bd1a82a34eb4bc76a4b4528e087fc2ebfa8b85..65a8303b80b1191cd2c19d61f88836e7fd3c7ae9 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -71,7 +71,8 @@ struct spi_imx_data; struct spi_imx_devtype_data { void (*intctrl)(struct spi_imx_data *spi_imx, int enable); int (*prepare_message)(struct spi_imx_data *spi_imx, struct spi_message *msg); - int (*prepare_transfer)(struct spi_imx_data *spi_imx, struct spi_device *spi); + int (*prepare_transfer)(struct spi_imx_data *spi_imx, struct spi_device *spi, + struct spi_transfer *t); void (*trigger)(struct spi_imx_data *spi_imx); int (*rx_available)(struct spi_imx_data *spi_imx); void (*reset)(struct spi_imx_data *spi_imx); @@ -649,7 +650,7 @@ static void mx51_configure_cpha(struct spi_imx_data *spi_imx, } static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx, - struct spi_device *spi) + struct spi_device *spi, struct spi_transfer *t) { u32 ctrl = readl(spi_imx->base + MX51_ECSPI_CTRL); u32 clk; @@ -774,7 +775,7 @@ static int mx31_prepare_message(struct spi_imx_data *spi_imx, } static int mx31_prepare_transfer(struct spi_imx_data *spi_imx, - struct spi_device *spi) + struct spi_device *spi, struct spi_transfer *t) { unsigned int reg = MX31_CSPICTRL_ENABLE | MX31_CSPICTRL_HOST; unsigned int clk; @@ -878,7 +879,7 @@ static int mx21_prepare_message(struct spi_imx_data *spi_imx, } static int mx21_prepare_transfer(struct spi_imx_data *spi_imx, - struct spi_device *spi) + struct spi_device *spi, struct spi_transfer *t) { unsigned int reg = MX21_CSPICTRL_ENABLE | MX21_CSPICTRL_HOST; unsigned int max = is_imx27_cspi(spi_imx) ? 16 : 18; @@ -953,7 +954,7 @@ static int mx1_prepare_message(struct spi_imx_data *spi_imx, } static int mx1_prepare_transfer(struct spi_imx_data *spi_imx, - struct spi_device *spi) + struct spi_device *spi, struct spi_transfer *t) { unsigned int reg = MX1_CSPICTRL_ENABLE | MX1_CSPICTRL_HOST; unsigned int clk; @@ -1304,7 +1305,7 @@ static int spi_imx_setupxfer(struct spi_device *spi, spi_imx->target_burst = t->len; } - spi_imx->devtype_data->prepare_transfer(spi_imx, spi); + spi_imx->devtype_data->prepare_transfer(spi_imx, spi, t); return 0; }
In an upcoming patch, mx51_ecspi_prepare_transfer() needs access to the word_delay parameter. To enable controller-specific handling of such per-transfer parameters, extend the prepare_transfer() function of the spi_imx_devtype_data interface to take a struct spi_transfer argument, update all controller-specific implementations accordingly. Signed-off-by: Jonas Rebmann <jre@pengutronix.de> --- drivers/spi/spi-imx.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)