Fixes the following W=1 kernel build warning(s): scripts/Makefile.build:252: drivers/gpu/drm/bridge/imx/Makefile: imx-ldb-helper.o is added to multiple modules: imx8qm-ldb imx8qxp-ldb Cc: Liu Ying <victor.liu@xxxxxxx> Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> Cc: Neil Armstrong <neil.armstrong@xxxxxxxxxx> Cc: Robert Foss <rfoss@xxxxxxxxxx> Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx> Cc: Jonas Karlman <jonas@xxxxxxxxx> Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxxx> Cc: David Airlie <airlied@xxxxxxxxx> Cc: Daniel Vetter <daniel@xxxxxxxx> Cc: Shawn Guo <shawnguo@xxxxxxxxxx> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx> Cc: Fabio Estevam <festevam@xxxxxxxxx> Cc: NXP Linux Team <linux-imx@xxxxxxx> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Signed-off-by: Lee Jones <lee@xxxxxxxxxx> --- drivers/gpu/drm/bridge/imx/Kconfig | 7 +++++++ drivers/gpu/drm/bridge/imx/Makefile | 7 +++++-- drivers/gpu/drm/bridge/imx/imx-ldb-helper.c | 13 +++++++++++++ 3 files changed, 25 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/imx/Kconfig b/drivers/gpu/drm/bridge/imx/Kconfig index 608f47f41bcd1..97018dcd078d0 100644 --- a/drivers/gpu/drm/bridge/imx/Kconfig +++ b/drivers/gpu/drm/bridge/imx/Kconfig @@ -1,10 +1,16 @@ if ARCH_MXC || COMPILE_TEST +config DRM_IMX8_LIB + tristate + help + Common helper functions used by some of the drivers below. + config DRM_IMX8QM_LDB tristate "Freescale i.MX8QM LVDS display bridge" depends on OF depends on COMMON_CLK select DRM_KMS_HELPER + select DRM_IMX8_LIB help Choose this to enable the internal LVDS Display Bridge(LDB) found in Freescale i.MX8qm processor. Official name of LDB is pixel mapper. @@ -14,6 +20,7 @@ config DRM_IMX8QXP_LDB depends on OF depends on COMMON_CLK select DRM_KMS_HELPER + select DRM_IMX8_LIB help Choose this to enable the internal LVDS Display Bridge(LDB) found in Freescale i.MX8qxp processor. Official name of LDB is pixel mapper. diff --git a/drivers/gpu/drm/bridge/imx/Makefile b/drivers/gpu/drm/bridge/imx/Makefile index aa90ec8d54336..e1146b0347014 100644 --- a/drivers/gpu/drm/bridge/imx/Makefile +++ b/drivers/gpu/drm/bridge/imx/Makefile @@ -1,7 +1,10 @@ -imx8qm-ldb-objs := imx-ldb-helper.o imx8qm-ldb-drv.o +imx-ldb-lib-objs := imx-ldb-helper.o +obj-$(CONFIG_DRM_IMX8_LIB) += imx-ldb-lib.o + +imx8qm-ldb-objs := imx8qm-ldb-drv.o obj-$(CONFIG_DRM_IMX8QM_LDB) += imx8qm-ldb.o -imx8qxp-ldb-objs := imx-ldb-helper.o imx8qxp-ldb-drv.o +imx8qxp-ldb-objs := imx8qxp-ldb-drv.o obj-$(CONFIG_DRM_IMX8QXP_LDB) += imx8qxp-ldb.o obj-$(CONFIG_DRM_IMX8QXP_PIXEL_COMBINER) += imx8qxp-pixel-combiner.o diff --git a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c index 7338b84bc83d2..4cd570947b093 100644 --- a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c +++ b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c @@ -19,12 +19,14 @@ bool ldb_channel_is_single_link(struct ldb_channel *ldb_ch) { return ldb_ch->link_type == LDB_CH_SINGLE_LINK; } +EXPORT_SYMBOL_GPL(ldb_channel_is_single_link); bool ldb_channel_is_split_link(struct ldb_channel *ldb_ch) { return ldb_ch->link_type == LDB_CH_DUAL_LINK_EVEN_ODD_PIXELS || ldb_ch->link_type == LDB_CH_DUAL_LINK_ODD_EVEN_PIXELS; } +EXPORT_SYMBOL_GPL(ldb_channel_is_split_link); int ldb_bridge_atomic_check_helper(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, @@ -38,6 +40,7 @@ int ldb_bridge_atomic_check_helper(struct drm_bridge *bridge, return 0; } +EXPORT_SYMBOL_GPL(ldb_bridge_atomic_check_helper); void ldb_bridge_mode_set_helper(struct drm_bridge *bridge, const struct drm_display_mode *mode, @@ -69,6 +72,7 @@ void ldb_bridge_mode_set_helper(struct drm_bridge *bridge, break; } } +EXPORT_SYMBOL_GPL(ldb_bridge_mode_set_helper); void ldb_bridge_enable_helper(struct drm_bridge *bridge) { @@ -81,6 +85,7 @@ void ldb_bridge_enable_helper(struct drm_bridge *bridge) */ regmap_write(ldb->regmap, ldb->ctrl_reg, ldb->ldb_ctrl); } +EXPORT_SYMBOL_GPL(ldb_bridge_enable_helper); void ldb_bridge_disable_helper(struct drm_bridge *bridge) { @@ -95,6 +100,7 @@ void ldb_bridge_disable_helper(struct drm_bridge *bridge) regmap_write(ldb->regmap, ldb->ctrl_reg, ldb->ldb_ctrl); } +EXPORT_SYMBOL_GPL(ldb_bridge_disable_helper); int ldb_bridge_attach_helper(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) @@ -117,6 +123,7 @@ int ldb_bridge_attach_helper(struct drm_bridge *bridge, ldb_ch->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); } +EXPORT_SYMBOL_GPL(ldb_bridge_attach_helper); int ldb_init_helper(struct ldb *ldb) { @@ -157,6 +164,7 @@ int ldb_init_helper(struct ldb *ldb) return 0; } +EXPORT_SYMBOL_GPL(ldb_init_helper); int ldb_find_next_bridge_helper(struct ldb *ldb) { @@ -184,6 +192,7 @@ int ldb_find_next_bridge_helper(struct ldb *ldb) return 0; } +EXPORT_SYMBOL_GPL(ldb_find_next_bridge_helper); void ldb_add_bridge_helper(struct ldb *ldb, const struct drm_bridge_funcs *bridge_funcs) @@ -204,6 +213,7 @@ void ldb_add_bridge_helper(struct ldb *ldb, drm_bridge_add(&ldb_ch->bridge); } } +EXPORT_SYMBOL_GPL(ldb_add_bridge_helper); void ldb_remove_bridge_helper(struct ldb *ldb) { @@ -219,3 +229,6 @@ void ldb_remove_bridge_helper(struct ldb *ldb) drm_bridge_remove(&ldb_ch->bridge); } } +EXPORT_SYMBOL_GPL(ldb_remove_bridge_helper); + +MODULE_LICENSE("GPL v2"); -- 2.40.0.rc1.284.g88254d51c5-goog