tinydrm: repaper: add CONFIG_THERMAL dependency

The new RePaper driver uses the thermal subsystem, and fails to link
when it is built-in but thermal is a loadable module:

drivers/gpu/drm/tinydrm/repaper.o: In function `repaper_probe':
repaper.c:(.text+0x540): undefined reference to `thermal_zone_get_zone_by_name'
drivers/gpu/drm/tinydrm/repaper.o: In function `repaper_fb_dirty':
repaper.c:(.text+0xff4): undefined reference to `thermal_zone_get_temp'

This adds another Kconfig dependency to prevent the broken configuration,
forcing repaper to be a module too.

Fixes: 3589211e9b03 ("drm/tinydrm: Add RePaper e-ink driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20170727100004.300665-1-arnd@arndb.de

diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig
index 9596e447f8776cd61fab8c1388cda494d3975074..f17c3caceab23b45c58cb3bc0dd846c12dba9d4b 100644 (file)
--- a/drivers/gpu/drm/tinydrm/Kconfig
+++ b/drivers/gpu/drm/tinydrm/Kconfig
@@ -23,6 +23,7 @@ config TINYDRM_MI0283QT
 config TINYDRM_REPAPER
        tristate "DRM support for Pervasive Displays RePaper panels (V231)"
        depends on DRM_TINYDRM && SPI
+       depends on THERMAL || !THERMAL
        help
          DRM driver for the following Pervasive Displays panels:
          1.44" TFT EPD Panel (E1144CS021)