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mfd: intel_quark_i2c_gpio: Use dmi_system_id table for retrieving frequency 

Avoids reimplementation of DMI matching in intel_quark_i2c_setup.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Jan Kiszka 2017-05-30 10:17:40 +02:00 committed by Lee Jones
parent 9bf2db7834
commit b518d4adb8
1 changed files with 13 additions and 20 deletions
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33
drivers/mfd/intel_quark_i2c_gpio.c
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@ -58,19 +58,18 @@ struct intel_quark_mfd {
struct clk_lookup *i2c_clk_lookup;
};
struct i2c_mode_info {
const char *name;
unsigned int i2c_scl_freq;
};
static const struct i2c_mode_info platform_i2c_mode_info[] = {
static const struct dmi_system_id dmi_platform_info[] = {
{
.name = "Galileo",
.i2c_scl_freq = 100000,
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_NAME, "Galileo"),
},
.driver_data = (void *)100000,
},
{
.name = "GalileoGen2",
.i2c_scl_freq = 400000,
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_NAME, "GalileoGen2"),
},
.driver_data = (void *)400000,
},
{}
};
@ -160,8 +159,7 @@ static void intel_quark_unregister_i2c_clk(struct device *dev)
static int intel_quark_i2c_setup(struct pci_dev *pdev, struct mfd_cell *cell)
{
const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
const struct i2c_mode_info *info;
const struct dmi_system_id *dmi_id;
struct dw_i2c_platform_data *pdata;
struct resource *res = (struct resource *)cell->resources;
struct device *dev = &pdev->dev;
@ -181,14 +179,9 @@ static int intel_quark_i2c_setup(struct pci_dev *pdev, struct mfd_cell *cell)
/* Normal mode by default */
pdata->i2c_scl_freq = 100000;
if (board_name) {
for (info = platform_i2c_mode_info; info->name; info++) {
if (!strcmp(board_name, info->name)) {
pdata->i2c_scl_freq = info->i2c_scl_freq;
break;
}
}
}
dmi_id = dmi_first_match(dmi_platform_info);
if (dmi_id)
pdata->i2c_scl_freq = (uintptr_t)dmi_id->driver_data;
cell->platform_data = pdata;
cell->pdata_size = sizeof(*pdata);