Convert the swapping of width and height quirk to a callback.

Signed-off-by: Tvrtko Ursulin <[email protected]>
Suggested-by: Ard Biesheuvel <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Melissa Wen <[email protected]>
Cc: [email protected]
Reviewed-by: Thomas Zimmermann <[email protected]>
Tested-by: Melissa Wen <[email protected]> # v3
---
 drivers/firmware/efi/sysfb_efi.c | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/firmware/efi/sysfb_efi.c b/drivers/firmware/efi/sysfb_efi.c
index 997bbd2a2f33..5c54f42d5fef 100644
--- a/drivers/firmware/efi/sysfb_efi.c
+++ b/drivers/firmware/efi/sysfb_efi.c
@@ -231,6 +231,17 @@ static const struct dmi_system_id efifb_dmi_system_table[] 
__initconst = {
        {},
 };
 
+static int __init efifb_swap_width_height(const struct dmi_system_id *id)
+{
+       u32 lfb_depth = __screen_info_lfb_bits_per_pixel(&screen_info);
+
+       swap(screen_info.lfb_width, screen_info.lfb_height);
+       screen_info.lfb_linelength = lfb_depth * screen_info.lfb_width /
+                                    BITS_PER_BYTE;
+
+       return 1;
+}
+
 /*
  * Some devices have a portrait LCD but advertise a landscape resolution (and
  * pitch). We simply swap width and height for these devices so that we can
@@ -248,6 +259,7 @@ static const struct dmi_system_id 
efifb_dmi_swap_width_height[] __initconst = {
                        DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
                        DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1HCN44WW"),
                },
+               .callback = efifb_swap_width_height,
        },
        {
                /* Lenovo MIIX 320-10ICR with 800x1280 portrait screen */
@@ -256,6 +268,7 @@ static const struct dmi_system_id 
efifb_dmi_swap_width_height[] __initconst = {
                        DMI_EXACT_MATCH(DMI_PRODUCT_VERSION,
                                        "Lenovo MIIX 320-10ICR"),
                },
+               .callback = efifb_swap_width_height,
        },
        {
                /* Lenovo D330 with 800x1280 or 1200x1920 portrait screen */
@@ -264,6 +277,7 @@ static const struct dmi_system_id 
efifb_dmi_swap_width_height[] __initconst = {
                        DMI_EXACT_MATCH(DMI_PRODUCT_VERSION,
                                        "Lenovo ideapad D330-10IGM"),
                },
+               .callback = efifb_swap_width_height,
        },
        {
                /* Lenovo IdeaPad Duet 3 10IGL5 with 1200x1920 portrait screen 
*/
@@ -272,6 +286,7 @@ static const struct dmi_system_id 
efifb_dmi_swap_width_height[] __initconst = {
                        DMI_EXACT_MATCH(DMI_PRODUCT_VERSION,
                                        "IdeaPad Duet 3 10IGL5"),
                },
+               .callback = efifb_swap_width_height,
        },
        {
                /* Lenovo Yoga Book X91F / X91L */
@@ -280,6 +295,7 @@ static const struct dmi_system_id 
efifb_dmi_swap_width_height[] __initconst = {
                        /* Non exact match to match F + L versions */
                        DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X91"),
                },
+               .callback = efifb_swap_width_height,
        },
        {},
 };
@@ -355,14 +371,8 @@ __init void sysfb_apply_efi_quirks(void)
            !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
                dmi_check_system(efifb_dmi_system_table);
 
-       if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI &&
-           dmi_check_system(efifb_dmi_swap_width_height)) {
-               u32 lfb_depth = __screen_info_lfb_bits_per_pixel(&screen_info);
-
-               swap(screen_info.lfb_width, screen_info.lfb_height);
-               screen_info.lfb_linelength = lfb_depth * screen_info.lfb_width /
-                                            BITS_PER_BYTE;
-       }
+       if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI)
+               dmi_check_system(efifb_dmi_swap_width_height);
 }
 
 __init void sysfb_set_efifb_fwnode(struct platform_device *pd)
-- 
2.51.1

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