The traditional pattern is to use DMI matching table and provide a
corresponding driver_data in it.
Convert driver to use DMI matching table.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
.../platform/intel-mid/atomisp_gmin_platform.c | 109 +++++++++++++--------
1 file changed, 70 insertions(+), 39 deletions(-)
diff --git a/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c
index 0f859bb714bf..8408a58ed764 100644
--- a/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c
@@ -209,7 +209,7 @@ struct gmin_cfg_var {
const char *name, *val;
};
-static const struct gmin_cfg_var ffrd8_vars[] = {
+static struct gmin_cfg_var ffrd8_vars[] = {
{ "INTCF1B:00_ImxId", "0x134" },
{ "INTCF1B:00_CsiPort", "1" },
{ "INTCF1B:00_CsiLanes", "4" },
@@ -220,14 +220,14 @@ static const struct gmin_cfg_var ffrd8_vars[] = {
/* Cribbed from MCG defaults in the mt9m114 driver, not actually verified
* vs. T100 hardware
*/
-static const struct gmin_cfg_var t100_vars[] = {
+static struct gmin_cfg_var t100_vars[] = {
{ "INT33F0:00_CsiPort", "0" },
{ "INT33F0:00_CsiLanes", "1" },
{ "INT33F0:00_CamClk", "1" },
{},
};
-static const struct gmin_cfg_var mrd7_vars[] = {
+static struct gmin_cfg_var mrd7_vars[] = {
{"INT33F8:00_CamType", "1"},
{"INT33F8:00_CsiPort", "1"},
{"INT33F8:00_CsiLanes", "2"},
@@ -243,7 +243,7 @@ static const struct gmin_cfg_var mrd7_vars[] = {
{},
};
-static const struct gmin_cfg_var ecs7_vars[] = {
+static struct gmin_cfg_var ecs7_vars[] = {
{"INT33BE:00_CsiPort", "1"},
{"INT33BE:00_CsiLanes", "2"},
{"INT33BE:00_CsiFmt", "13"},
@@ -258,8 +258,7 @@ static const struct gmin_cfg_var ecs7_vars[] = {
{},
};
-
-static const struct gmin_cfg_var i8880_vars[] = {
+static struct gmin_cfg_var i8880_vars[] = {
{"XXOV2680:00_CsiPort", "1"},
{"XXOV2680:00_CsiLanes", "1"},
{"XXOV2680:00_CamClk", "0"},
@@ -269,18 +268,45 @@ static const struct gmin_cfg_var i8880_vars[] = {
{},
};
-static const struct {
- const char *dmi_board_name;
- const struct gmin_cfg_var *vars;
-} hard_vars[] = {
- { "BYT-T FFD8", ffrd8_vars },
- { "T100TA", t100_vars },
- { "MRD7", mrd7_vars },
- { "ST70408", ecs7_vars },
- { "VTA0803", i8880_vars },
+static const struct dmi_system_id gmin_vars[] = {
+ {
+ .ident = "BYT-T FFD8",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+ },
+ .driver_data = ffrd8_vars,
+ },
+ {
+ .ident = "T100TA",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "T100TA"),
+ },
+ .driver_data = t100_vars,
+ },
+ {
+ .ident = "MRD7",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "MRD7"),
+ },
+ .driver_data = mrd7_vars,
+ },
+ {
+ .ident = "ST70408",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "ST70408"),
+ },
+ .driver_data = ecs7_vars,
+ },
+ {
+ .ident = "VTA0803",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "VTA0803"),
+ },
+ .driver_data = i8880_vars,
+ },
+ {}
};
-
#define GMIN_CFG_VAR_EFI_GUID EFI_GUID(0xecb54cd9, 0xe5ae, 0x4fdc, \
0xa9, 0x71, 0xe8, 0x77, \
0x75, 0x60, 0x68, 0xf7)
@@ -604,6 +630,29 @@ int atomisp_gmin_register_vcm_control(struct camera_vcm_control *vcmCtrl)
}
EXPORT_SYMBOL_GPL(atomisp_gmin_register_vcm_control);
+static int gmin_get_hardcoded_var(struct gmin_cfg_var *varlist,
+ const char *var8, char *out, size_t *out_len)
+{
+ struct gmin_cfg_var *gv;
+
+ for (gv = varlist; gv->name; gv++) {
+ size_t vl;
+
+ if (strcmp(var8, gv->name))
+ continue;
+
+ vl = strlen(gv->val);
+ if (vl > *out_len - 1)
+ return -ENOSPC;
+
+ strcpy(out, gv->val);
+ *out_len = vl;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
/* Retrieves a device-specific configuration variable. The dev
* argument should be a device with an ACPI companion, as all
* configuration is based on firmware ID.
@@ -614,7 +663,8 @@ static int gmin_get_config_var(struct device *dev, const char *var,
char var8[CFG_VAR_NAME_MAX];
efi_char16_t var16[CFG_VAR_NAME_MAX];
struct efivar_entry *ev;
- int i, j, ret;
+ const struct dmi_system_id *id;
+ int i, ret;
if (dev && ACPI_COMPANION(dev))
dev = &ACPI_COMPANION(dev)->dev;
@@ -631,28 +681,9 @@ static int gmin_get_config_var(struct device *dev, const char *var,
* Some device firmwares lack the ability to set EFI variables at
* runtime.
*/
- for (i = 0; i < ARRAY_SIZE(hard_vars); i++) {
- if (dmi_match(DMI_BOARD_NAME, hard_vars[i].dmi_board_name)) {
- for (j = 0; hard_vars[i].vars[j].name; j++) {
- size_t vl;
- const struct gmin_cfg_var *gv;
-
- gv = &hard_vars[i].vars[j];
- vl = strlen(gv->val);
-
- if (strcmp(var8, gv->name))
- continue;
- if (vl > *out_len - 1)
- return -ENOSPC;
-
- memcpy(out, gv->val, min(*out_len, vl+1));
- out[*out_len-1] = 0;
- *out_len = vl;
-
- return 0;
- }
- }
- }
+ id = dmi_first_match(gmin_vars);
+ if (id)
+ return gmin_get_hardcoded_var(id->driver_data, var8, out, out_len);
/* Our variable names are ASCII by construction, but EFI names
* are wide chars. Convert and zero-pad.
--
2.15.1
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