samsung-laptop: make the dmi check less strict

This enable the driver for everything that look like
a laptop and is from vendor "SAMSUNG ELECTRONICS CO., LTD.".
Note that laptop supported by samsung-q10 seem to have a different
vendor strict.

Also remove every log output until we know that we have a SABI interface
(except if the driver is forced to load, or debug is enabled).

Keeping a whitelist of laptop with a model granularity is something that can't
work without close vendor cooperation (and we don't have that).

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index 39fdabac195da91aa9da4f6c8c857b45c730190c..431f7dc2f222b48cdb75282372c381e8b56aab94 100644 (file)
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1270,7 +1270,8 @@ static int __init samsung_sabi_init(struct samsung_laptop *samsung)
 
        samsung->f0000_segment = ioremap_nocache(0xf0000, 0xffff);
        if (!samsung->f0000_segment) {
-               pr_err("Can't map the segment at 0xf0000\n");
+               if (debug || force)
+                       pr_err("Can't map the segment at 0xf0000\n");
                ret = -EINVAL;
                goto exit;
        }
@@ -1285,7 +1286,8 @@ static int __init samsung_sabi_init(struct samsung_laptop *samsung)
        }
 
        if (loca == 0xffff) {
-               pr_err("This computer does not support SABI\n");
+               if (debug || force)
+                       pr_err("This computer does not support SABI\n");
                ret = -ENODEV;
                goto exit;
        }
@@ -1354,244 +1356,34 @@ static int __init samsung_platform_init(struct samsung_laptop *samsung)
        return 0;
 }
 
-static int __init dmi_check_cb(const struct dmi_system_id *id)
-{
-       pr_info("found laptop model '%s'\n", id->ident);
-       return 1;
-}
-
 static struct dmi_system_id __initdata samsung_dmi_table[] = {
        {
-               .ident = "N128",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N128"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N128"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "N130",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N130"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N130"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "N510",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N510"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N510"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "X125",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "X125"),
-                       DMI_MATCH(DMI_BOARD_NAME, "X125"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "X120/X170",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "X120/X170"),
-                       DMI_MATCH(DMI_BOARD_NAME, "X120/X170"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "NC10",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
-                       DMI_MATCH(DMI_BOARD_NAME, "NC10"),
-               },
-               .callback = dmi_check_cb,
-       },
-               {
-               .ident = "NP-Q45",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
-                       DMI_MATCH(DMI_BOARD_NAME, "SQ45S70S"),
-               },
-               .callback = dmi_check_cb,
-               },
-       {
-               .ident = "X360",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "X360"),
-                       DMI_MATCH(DMI_BOARD_NAME, "X360"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "R410 Plus",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "R410P"),
-                       DMI_MATCH(DMI_BOARD_NAME, "R460"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "R518",
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR,
                                        "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "R518"),
-                       DMI_MATCH(DMI_BOARD_NAME, "R518"),
+                       DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
                },
-               .callback = dmi_check_cb,
        },
        {
-               .ident = "R519/R719",
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR,
                                        "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "R519/R719"),
-                       DMI_MATCH(DMI_BOARD_NAME, "R519/R719"),
+                       DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
                },
-               .callback = dmi_check_cb,
        },
        {
-               .ident = "N150/N210/N220",
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR,
                                        "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+                       DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
                },
-               .callback = dmi_check_cb,
        },
        {
-               .ident = "N220",
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR,
                                        "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N220"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N220"),
+                       DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
                },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "N150/N210/N220/N230",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220/N230"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220/N230"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "N150P/N210P/N220P",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N150P/N210P/N220P"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N150P/N210P/N220P"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "R700",
-               .matches = {
-                     DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                     DMI_MATCH(DMI_PRODUCT_NAME, "SR700"),
-                     DMI_MATCH(DMI_BOARD_NAME, "SR700"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "R530/R730",
-               .matches = {
-                     DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                     DMI_MATCH(DMI_PRODUCT_NAME, "R530/R730"),
-                     DMI_MATCH(DMI_BOARD_NAME, "R530/R730"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "NF110/NF210/NF310",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
-                       DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "N145P/N250P/N260P",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
-                       DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "R70/R71",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR,
-                                       "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "R70/R71"),
-                       DMI_MATCH(DMI_BOARD_NAME, "R70/R71"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "P460",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "P460"),
-                       DMI_MATCH(DMI_BOARD_NAME, "P460"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "R528/R728",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "R528/R728"),
-                       DMI_MATCH(DMI_BOARD_NAME, "R528/R728"),
-               },
-               .callback = dmi_check_cb,
-       },
-       {
-               .ident = "NC210/NC110",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"),
-                       DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"),
-               },
-               .callback = dmi_check_cb,
-       },
-               {
-               .ident = "X520",
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-                       DMI_MATCH(DMI_PRODUCT_NAME, "X520"),
-                       DMI_MATCH(DMI_BOARD_NAME, "X520"),
-               },
-               .callback = dmi_check_cb,
        },
        { },
 };
@@ -1616,12 +1408,9 @@ static int __init samsung_init(void)
 
 #ifdef CONFIG_ACPI
        /* Don't handle backlight here if the acpi video already handle it */
-       if (acpi_video_backlight_support()) {
-               pr_info("Backlight controlled by ACPI video driver\n");
+       if (acpi_video_backlight_support())
                samsung->handle_backlight = false;
-       }
 #endif
-
        ret = samsung_platform_init(samsung);
        if (ret)
                goto error_platform;
@@ -1630,6 +1419,12 @@ static int __init samsung_init(void)
        if (ret)
                goto error_sabi;
 
+#ifdef CONFIG_ACPI
+       /* Only log that if we are really on a sabi platform */
+       if (acpi_video_backlight_support())
+               pr_info("Backlight controlled by ACPI video driver\n");
+#endif
+
        ret = samsung_sysfs_init(samsung);
        if (ret)
                goto error_sysfs;