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SubjectRe: [PATCH v3 2/4] spi: spi-altera-dfl: support n5010 feature revision
On Tue, Jun 29, 2021 at 02:12:12PM +0200, Martin Hundebøll wrote:
> From: Martin Hundebøll <mhu@silicom.dk>
>
> The Max10 BMC on the Silicom n5010 PAC is slightly different than the
> existing BMC's, so use a dedicated feature revision detect it.
Nit: BMCs not BMC's
>
> Signed-off-by: Martin Hundebøll <mhu@silicom.dk>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
> ---
>
> Changes since v2:
> * None
>
> Changes since v1:
> * use feature revision from struct dfl_device instead of reading it
> from io-mem
>
> drivers/spi/spi-altera-dfl.c | 15 +++++++++++++--
> 1 file changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/spi/spi-altera-dfl.c b/drivers/spi/spi-altera-dfl.c
> index 3e32e4fe5895..f6cf7c8d9dac 100644
> --- a/drivers/spi/spi-altera-dfl.c
> +++ b/drivers/spi/spi-altera-dfl.c
> @@ -111,6 +111,13 @@ static struct spi_board_info m10_bmc_info = {
> .chip_select = 0,
> };
>
> +static struct spi_board_info m10_n5010_bmc_info = {
> + .modalias = "m10-n5010",
> + .max_speed_hz = 12500000,
> + .bus_num = 0,
> + .chip_select = 0,
> +};
> +
> static void config_spi_master(void __iomem *base, struct spi_master *master)
> {
> u64 v;
> @@ -130,6 +137,7 @@ static void config_spi_master(void __iomem *base, struct spi_master *master)
>
> static int dfl_spi_altera_probe(struct dfl_device *dfl_dev)
> {
> + struct spi_board_info *board_info = &m10_bmc_info;
> struct device *dev = &dfl_dev->dev;
> struct spi_master *master;
> struct altera_spi *hw;
> @@ -172,9 +180,12 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev)
> goto exit;
> }
>
> - if (!spi_new_device(master, &m10_bmc_info)) {
> + if (dfl_dev->revision == FME_FEATURE_REV_MAX10_SPI_N5010)
> + board_info = &m10_n5010_bmc_info;
> +
> + if (!spi_new_device(master, board_info)) {
> dev_err(dev, "%s failed to create SPI device: %s\n",
> - __func__, m10_bmc_info.modalias);
> + __func__, board_info->modalias);
> }
>
> return 0;
> --
> 2.31.0
>

Mark, if you're ok with this can you pick up patches 1/4 ("fpga: dfl:
expose feature revision from struct dfl_device") and this one?

The MFD and HWMON ones can go through the respective trees.

Thanks,
Moritz

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