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Message-Id: <1374106861-3549-2-git-send-email-bleung@chromium.org>
Date: Wed, 17 Jul 2013 17:21:00 -0700
From: Benson Leung <bleung@...omium.org>
To: matthew.garrett@...ula.com, linux-kernel@...r.kernel.org,
platform-driver-x86@...r.kernel.org
Cc: adurbin@...omium.org, olofj@...omium.org, axel.lin@...ics.com,
Benson Leung <bleung@...omium.org>
Subject: [PATCH 1/2] Platform: x86: chromeos_laptop - Restructure device associations
From: Aaron Durbin <adurbin@...omium.org>
The previous code had a single DMI matching entry
for each device on a board. Instead provide a single
DMI entry for each board which references a structure
about each board that lists the associated peripherals.
This allows for a lower number of DMI matching sequences
as well making it easier to add new boards.
Signed-off-by: Aaron Durbin <adurbin@...omium.org>
Signed-off-by: Benson Leung <bleung@...omium.org>
---
drivers/platform/x86/chromeos_laptop.c | 197 +++++++++++++++++++++------------
1 file changed, 126 insertions(+), 71 deletions(-)
diff --git a/drivers/platform/x86/chromeos_laptop.c b/drivers/platform/x86/chromeos_laptop.c
index 3e5b4497..086f347 100644
--- a/drivers/platform/x86/chromeos_laptop.c
+++ b/drivers/platform/x86/chromeos_laptop.c
@@ -53,6 +53,17 @@ enum i2c_adapter_type {
I2C_ADAPTER_PANEL,
};
+struct i2c_peripheral {
+ void (*add)(enum i2c_adapter_type type);
+ enum i2c_adapter_type type;
+};
+
+#define MAX_I2C_PERIPHERALS 3
+
+struct chromeos_laptop {
+ struct i2c_peripheral i2c_peripherals[MAX_I2C_PERIPHERALS];
+};
+
static struct i2c_board_info __initdata cyapa_device = {
I2C_BOARD_INFO("cyapa", CYAPA_TP_I2C_ADDR),
.flags = I2C_CLIENT_WAKE,
@@ -233,149 +244,193 @@ static __init struct i2c_client *add_i2c_device(const char *name,
addr_list);
}
-
-static struct i2c_client __init *add_smbus_device(const char *name,
- struct i2c_board_info *info)
-{
- return add_i2c_device(name, I2C_ADAPTER_SMBUS, info);
-}
-
-static int __init setup_cyapa_smbus_tp(const struct dmi_system_id *id)
+static int __init setup_cyapa_tp(enum i2c_adapter_type type)
{
- /* add cyapa touchpad on smbus */
- tp = add_smbus_device("trackpad", &cyapa_device);
+ /* add cyapa touchpad */
+ tp = add_i2c_device("trackpad", type, &cyapa_device);
return 0;
}
-static int __init setup_atmel_224s_tp(const struct dmi_system_id *id)
+static int __init setup_atmel_224s_tp(enum i2c_adapter_type type)
{
const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR,
ATMEL_TP_I2C_ADDR,
I2C_CLIENT_END };
- /* add atmel mxt touchpad on VGA DDC GMBus */
- tp = add_probed_i2c_device("trackpad", I2C_ADAPTER_VGADDC,
+ /* add atmel mxt touchpad */
+ tp = add_probed_i2c_device("trackpad", type,
&atmel_224s_tp_device, addr_list);
return 0;
}
-static int __init setup_atmel_1664s_ts(const struct dmi_system_id *id)
+static int __init setup_atmel_1664s_ts(enum i2c_adapter_type type)
{
const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR,
ATMEL_TS_I2C_ADDR,
I2C_CLIENT_END };
- /* add atmel mxt touch device on PANEL GMBus */
- ts = add_probed_i2c_device("touchscreen", I2C_ADAPTER_PANEL,
+ /* add atmel mxt touch device */
+ ts = add_probed_i2c_device("touchscreen", type,
&atmel_1664s_device, addr_list);
return 0;
}
-
-static int __init setup_isl29018_als(const struct dmi_system_id *id)
+static int __init setup_isl29018_als(enum i2c_adapter_type type)
{
/* add isl29018 light sensor */
- als = add_smbus_device("lightsensor", &isl_als_device);
+ als = add_i2c_device("lightsensor", type, &isl_als_device);
return 0;
}
-static int __init setup_isl29023_als(const struct dmi_system_id *id)
+static int __init setup_tsl2583_als(enum i2c_adapter_type type)
{
- /* add isl29023 light sensor on Panel GMBus */
- als = add_i2c_device("lightsensor", I2C_ADAPTER_PANEL,
- &isl_als_device);
+ /* add tsl2583 light sensor */
+ als = add_i2c_device(NULL, type, &tsl2583_als_device);
return 0;
}
-static int __init setup_tsl2583_als(const struct dmi_system_id *id)
+static int __init setup_tsl2563_als(enum i2c_adapter_type type)
{
- /* add tsl2583 light sensor on smbus */
- als = add_smbus_device(NULL, &tsl2583_als_device);
+ /* add tsl2563 light sensor */
+ als = add_i2c_device(NULL, type, &tsl2563_als_device);
return 0;
}
-static int __init setup_tsl2563_als(const struct dmi_system_id *id)
+static int __init
+chromeos_laptop_add_peripherals(const struct dmi_system_id *id)
{
- /* add tsl2563 light sensor on smbus */
- als = add_smbus_device(NULL, &tsl2563_als_device);
- return 0;
+ int i;
+ struct chromeos_laptop *cros_laptop = (void *)id->driver_data;
+
+ pr_debug("Adding peripherals for %s.\n", id->ident);
+
+ for (i = 0; i < MAX_I2C_PERIPHERALS; i++) {
+ struct i2c_peripheral *i2c_dev;
+
+ i2c_dev = &cros_laptop->i2c_peripherals[i];
+
+ /* No more peripherals. */
+ if (i2c_dev->add == NULL)
+ break;
+
+ /* Add the device. */
+ i2c_dev->add(i2c_dev->type);
+ }
+
+ /* Indicate to dmi_scan that processing is done. */
+ return 1;
}
+static struct chromeos_laptop __initdata samsung_series_5_550 = {
+ .i2c_peripherals = {
+ /* Touchpad. */
+ { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
+ /* Light Sensor. */
+ { .add = setup_isl29018_als, I2C_ADAPTER_SMBUS },
+ },
+};
+
+static struct chromeos_laptop __initdata samsung_series_5 = {
+ .i2c_peripherals = {
+ /* Light Sensor. */
+ { .add = setup_tsl2583_als, I2C_ADAPTER_SMBUS },
+ },
+};
+
+static struct chromeos_laptop __initdata chromebook_pixel = {
+ .i2c_peripherals = {
+ /* Touch Screen. */
+ { .add = setup_atmel_1664s_ts, I2C_ADAPTER_PANEL },
+ /* Touchpad. */
+ { .add = setup_atmel_224s_tp, I2C_ADAPTER_VGADDC },
+ /* Light Sensor. */
+ { .add = setup_isl29018_als, I2C_ADAPTER_PANEL },
+ },
+};
+
+static struct chromeos_laptop __initdata acer_c7_chromebook = {
+ .i2c_peripherals = {
+ /* Touchpad. */
+ { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
+ },
+};
+
+static struct chromeos_laptop __initdata acer_ac700 = {
+ .i2c_peripherals = {
+ /* Light Sensor. */
+ { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS },
+ },
+};
+
+static struct chromeos_laptop __initdata hp_pavilion_14_chromebook = {
+ .i2c_peripherals = {
+ /* Touchpad. */
+ { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
+ },
+};
+
+static struct chromeos_laptop __initdata cr48 = {
+ .i2c_peripherals = {
+ /* Light Sensor. */
+ { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS },
+ },
+};
+
+#define _CBDD(board_) \
+ .callback = &chromeos_laptop_add_peripherals, \
+ .driver_data = (void *)&board_
+
static struct dmi_system_id __initdata chromeos_laptop_dmi_table[] = {
{
- .ident = "Samsung Series 5 550 - Touchpad",
+ .ident = "Samsung Series 5 550",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
},
- .callback = setup_cyapa_smbus_tp,
- },
- {
- .ident = "Chromebook Pixel - Touchscreen",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
- },
- .callback = setup_atmel_1664s_ts,
- },
- {
- .ident = "Chromebook Pixel - Touchpad",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
- },
- .callback = setup_atmel_224s_tp,
+ _CBDD(samsung_series_5_550),
},
{
- .ident = "Samsung Series 5 550 - Light Sensor",
+ .ident = "Samsung Series 5",
.matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Alex"),
},
- .callback = setup_isl29018_als,
+ _CBDD(samsung_series_5),
},
{
- .ident = "Chromebook Pixel - Light Sensor",
+ .ident = "Chromebook Pixel",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
},
- .callback = setup_isl29023_als,
+ _CBDD(chromebook_pixel),
},
{
- .ident = "Acer C7 Chromebook - Touchpad",
+ .ident = "Acer C7 Chromebook",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"),
},
- .callback = setup_cyapa_smbus_tp,
+ _CBDD(acer_c7_chromebook),
},
{
- .ident = "HP Pavilion 14 Chromebook - Touchpad",
+ .ident = "Acer AC700",
.matches = {
- DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"),
},
- .callback = setup_cyapa_smbus_tp,
+ _CBDD(acer_ac700),
},
{
- .ident = "Samsung Series 5 - Light Sensor",
+ .ident = "HP Pavilion 14 Chromebook",
.matches = {
- DMI_MATCH(DMI_PRODUCT_NAME, "Alex"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
},
- .callback = setup_tsl2583_als,
+ _CBDD(hp_pavilion_14_chromebook),
},
{
- .ident = "Cr-48 - Light Sensor",
+ .ident = "Cr-48",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
},
- .callback = setup_tsl2563_als,
- },
- {
- .ident = "Acer AC700 - Light Sensor",
- .matches = {
- DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"),
- },
- .callback = setup_tsl2563_als,
+ _CBDD(cr48),
},
{ }
};
--
1.8.3
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