diff options
| author | Vadim Pasternak <vadimp@nvidia.com> | 2021-02-08 21:16:05 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-02-09 11:35:38 +0100 |
| commit | 699c0506543ee9ba3f5a67ab0837b292b098aeb4 (patch) | |
| tree | 18aeb15f4872ff23cc4ad35c855ac1cb424018bc /drivers/i2c/muxes | |
| parent | i2c: mux: mlxcpld: Extend driver to support word address space devices (diff) | |
| download | linux-699c0506543ee9ba3f5a67ab0837b292b098aeb4.tar.xz linux-699c0506543ee9ba3f5a67ab0837b292b098aeb4.zip | |
i2c: mux: mlxcpld: Extend supported mux number
Allow to extend mux number supported by driver.
Currently it is limited by eight, which is not enough for new coming
Mellanox modular system with line cards, which require up to 64 mux
support.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c/muxes')
| -rw-r--r-- | drivers/i2c/muxes/i2c-mux-mlxcpld.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-mlxcpld.c b/drivers/i2c/muxes/i2c-mux-mlxcpld.c index 10767ad4adb4..5e0672f9979b 100644 --- a/drivers/i2c/muxes/i2c-mux-mlxcpld.c +++ b/drivers/i2c/muxes/i2c-mux-mlxcpld.c @@ -15,8 +15,6 @@ #include <linux/platform_device.h> #include <linux/slab.h> -#define CPLD_MUX_MAX_NCHANS 8 - /* mlxcpld_mux - mux control structure: * @last_val - last selected register value or -1 if mux deselected * @client - I2C device client @@ -142,7 +140,7 @@ static int mlxcpld_mux_probe(struct platform_device *pdev) if (!i2c_check_functionality(client->adapter, func)) return -ENODEV; - muxc = i2c_mux_alloc(client->adapter, &pdev->dev, CPLD_MUX_MAX_NCHANS, + muxc = i2c_mux_alloc(client->adapter, &pdev->dev, pdata->num_adaps, sizeof(*data), 0, mlxcpld_mux_select_chan, mlxcpld_mux_deselect); if (!muxc) @@ -155,11 +153,7 @@ static int mlxcpld_mux_probe(struct platform_device *pdev) data->last_val = -1; /* force the first selection */ /* Create an adapter for each channel. */ - for (num = 0; num < CPLD_MUX_MAX_NCHANS; num++) { - if (num >= pdata->num_adaps) - /* discard unconfigured channels */ - break; - + for (num = 0; num < pdata->num_adaps; num++) { err = i2c_mux_add_adapter(muxc, 0, pdata->chan_ids[num], 0); if (err) goto virt_reg_failed; |