linux-kernel - [PATCH] drm/stm: add COMMON

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Message-Id: <20240719075454.3595358-1-arnd@kernel.org>
Date: Fri, 19 Jul 2024 09:54:41 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Yannick Fertre <yannick.fertre@...s.st.com>,
	Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>,
	Philippe Cornu <philippe.cornu@...s.st.com>
Cc: Arnd Bergmann <arnd@...db.de>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Ville Syrjälä <ville.syrjala@...ux.intel.com>,
	dri-devel@...ts.freedesktop.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drm/stm: add COMMON_CLK dependency

From: Arnd Bergmann <arnd@...db.de>

The added lvds driver and a change in the dsi driver resulted in failed
builds when COMMON_CLK is disabled:

x86_64-linux-ld: drivers/gpu/drm/stm/dw_mipi_dsi-stm.o: in function `dw_mipi_dsi_stm_remove':
dw_mipi_dsi-stm.c:(.text+0x51e): undefined reference to `clk_hw_unregister'

x86_64-linux-ld: drivers/gpu/drm/stm/lvds.o: in function `lvds_remove':
lvds.c:(.text+0xe3): undefined reference to `of_clk_del_provider'
x86_64-linux-ld: lvds.c:(.text+0xec): undefined reference to `clk_hw_unregister'
x86_64-linux-ld: drivers/gpu/drm/stm/lvds.o: in function `lvds_pll_config':
lvds.c:(.text+0xb5d): undefined reference to `clk_hw_get_rate'
x86_64-linux-ld: drivers/gpu/drm/stm/lvds.o: in function `lvds_probe':
lvds.c:(.text+0x1476): undefined reference to `clk_hw_register'
x86_64-linux-ld: lvds.c:(.text+0x148b): undefined reference to `of_clk_hw_simple_get'
x86_64-linux-ld: lvds.c:(.text+0x1493): undefined reference to `of_clk_add_hw_provider'
x86_64-linux-ld: lvds.c:(.text+0x1535): undefined reference to `clk_hw_unregister'

Add this as a dependency for the stm driver itself, since it will be
required in practice anyway.

Fixes: 185f99b61442 ("drm/stm: dsi: expose DSI PHY internal clock")
Fixes: aca1cbc1c986 ("drm/stm: lvds: add new STM32 LVDS Display Interface Transmitter driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/stm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/stm/Kconfig b/drivers/gpu/drm/stm/Kconfig
index 1cc6b6cbdfa9..d7f41a87808e 100644
--- a/drivers/gpu/drm/stm/Kconfig
+++ b/drivers/gpu/drm/stm/Kconfig
@@ -2,6 +2,7 @@
 config DRM_STM
 	tristate "DRM Support for STMicroelectronics SoC Series"
 	depends on DRM && (ARCH_STM32 || COMPILE_TEST)
+	depends on COMMON_CLK
 	select DRM_KMS_HELPER
 	select DRM_GEM_DMA_HELPER
 	select DRM_PANEL_BRIDGE
-- 
2.39.2