diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2022-07-21 23:03:39 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-07-21 23:03:39 +0300 |
| commit | 6e0e846ee2ab01bc44254e6a0a6a6a0db1cba16d (patch) | |
| tree | e2a39b9ff9fbfa9adbaa004e3b42047664a8e57d /drivers/net/can/spi | |
| parent | 5588d628027092e66195097bdf6835ddf64418b3 (diff) | |
| parent | 7ca433dc6dedb2ec98dfc943f6db0c9b8996ed11 (diff) | |
| download | linux-6e0e846ee2ab01bc44254e6a0a6a6a0db1cba16d.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/can/spi')
| -rw-r--r-- | drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c index f4e174cadd4e..7fc86ed405c6 100644 --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c @@ -1691,8 +1691,8 @@ static int mcp251xfd_register_chip_detect(struct mcp251xfd_priv *priv) u32 osc; int err; - /* The OSC_LPMEN is only supported on MCP2518FD, so use it to - * autodetect the model. + /* The OSC_LPMEN is only supported on MCP2518FD and MCP251863, + * so use it to autodetect the model. */ err = regmap_update_bits(priv->map_reg, MCP251XFD_REG_OSC, MCP251XFD_REG_OSC_LPMEN, @@ -1704,10 +1704,18 @@ static int mcp251xfd_register_chip_detect(struct mcp251xfd_priv *priv) if (err) return err; - if (osc & MCP251XFD_REG_OSC_LPMEN) - devtype_data = &mcp251xfd_devtype_data_mcp2518fd; - else + if (osc & MCP251XFD_REG_OSC_LPMEN) { + /* We cannot distinguish between MCP2518FD and + * MCP251863. If firmware specifies MCP251863, keep + * it, otherwise set to MCP2518FD. + */ + if (mcp251xfd_is_251863(priv)) + devtype_data = &mcp251xfd_devtype_data_mcp251863; + else + devtype_data = &mcp251xfd_devtype_data_mcp2518fd; + } else { devtype_data = &mcp251xfd_devtype_data_mcp2517fd; + } if (!mcp251xfd_is_251XFD(priv) && priv->devtype_data.model != devtype_data->model) { |