linux-kernel - [PATCH] gpu: Remove depends on RESET

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Message-Id: <20161018205719.20575-1-stephen.boyd@linaro.org>
Date:   Tue, 18 Oct 2016 13:57:19 -0700
From:   Stephen Boyd <stephen.boyd@...aro.org>
To:     David Airlie <airlied@...ux.ie>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Peter Chen <peter.chen@....com>, Arnd Bergmann <arnd@...db.de>,
        dri-devel@...ts.freedesktop.org, Heiko Stuebner <heiko@...ech.de>,
        Mark Yao <mark.yao@...k-chips.com>
Subject: [PATCH] gpu: Remove depends on RESET_CONTROLLER when not a provider

These GPU drivers only depend on the RESET_CONTROLLER config
option to fix build issues that existed when there weren't stub
reset APIs for reset controller consumers. Given that these
drivers aren't providing any reset controllers themselves, they
don't actually depend on the API to build (just to function) so
they don't need to depend on it. Remove the dependency to fix
recursive build errors like the following:

drivers/usb/Kconfig:39:error: recursive dependency detected!
drivers/usb/Kconfig:39: symbol USB is selected by MOUSE_APPLETOUCH
drivers/input/mouse/Kconfig:187:        symbol MOUSE_APPLETOUCH depends on INPUT
drivers/input/Kconfig:8:        symbol INPUT is selected by VT
drivers/tty/Kconfig:12: symbol VT is selected by FB_STI
drivers/video/fbdev/Kconfig:674:        symbol FB_STI depends on FB
drivers/video/fbdev/Kconfig:5:  symbol FB is selected by DRM_KMS_FB_HELPER
drivers/gpu/drm/Kconfig:42:     symbol DRM_KMS_FB_HELPER is selected by DRM_KMS_CMA_HELPER
drivers/gpu/drm/Kconfig:98:     symbol DRM_KMS_CMA_HELPER is selected by DRM_IMX
drivers/gpu/drm/imx/Kconfig:1:  symbol DRM_IMX depends on IMX_IPUV3_CORE
drivers/gpu/ipu-v3/Kconfig:1:   symbol IMX_IPUV3_CORE depends on RESET_CONTROLLER
drivers/reset/Kconfig:4:        symbol RESET_CONTROLLER is selected by USB_CHIPIDEA
drivers/usb/chipidea/Kconfig:1: symbol USB_CHIPIDEA depends on USB_EHCI_HCD
drivers/usb/host/Kconfig:84:    symbol USB_EHCI_HCD depends on USB

Cc: Arnd Bergmann <arnd@...db.de>
Cc: <dri-devel@...ts.freedesktop.org>
Cc: Heiko Stuebner <heiko@...ech.de>
Cc: Mark Yao <mark.yao@...k-chips.com>
Acked-by: Philipp Zabel <p.zabel@...gutronix.de>
Signed-off-by: Stephen Boyd <stephen.boyd@...aro.org>
---

This has come out of some USB chipidea patches I've been working on. Please see
http://lkml.kernel.org/r/20160907213519.27340-1-stephen.boyd@linaro.org for
more details.

I'm resending with the ack from Philipp picked up.

 drivers/gpu/drm/rockchip/Kconfig | 1 -
 drivers/gpu/drm/tegra/Kconfig    | 1 -
 drivers/gpu/ipu-v3/Kconfig       | 1 -
 3 files changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index 3c58669a06ce..6f7f9c59f05b 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -1,7 +1,6 @@
 config DRM_ROCKCHIP
 	tristate "DRM Support for Rockchip"
 	depends on DRM && ROCKCHIP_IOMMU
-	depends on RESET_CONTROLLER
 	select DRM_GEM_CMA_HELPER
 	select DRM_KMS_HELPER
 	select DRM_PANEL
diff --git a/drivers/gpu/drm/tegra/Kconfig b/drivers/gpu/drm/tegra/Kconfig
index 63ebb154b9b5..bbf5a4b7e0b6 100644
--- a/drivers/gpu/drm/tegra/Kconfig
+++ b/drivers/gpu/drm/tegra/Kconfig
@@ -3,7 +3,6 @@ config DRM_TEGRA
 	depends on ARCH_TEGRA || (ARM && COMPILE_TEST)
 	depends on COMMON_CLK
 	depends on DRM
-	depends on RESET_CONTROLLER
 	select DRM_KMS_HELPER
 	select DRM_MIPI_DSI
 	select DRM_PANEL
diff --git a/drivers/gpu/ipu-v3/Kconfig b/drivers/gpu/ipu-v3/Kconfig
index aefdff95356d..08766c6e7856 100644
--- a/drivers/gpu/ipu-v3/Kconfig
+++ b/drivers/gpu/ipu-v3/Kconfig
@@ -1,7 +1,6 @@
 config IMX_IPUV3_CORE
 	tristate "IPUv3 core support"
 	depends on SOC_IMX5 || SOC_IMX6Q || ARCH_MULTIPLATFORM
-	depends on RESET_CONTROLLER
 	select GENERIC_IRQ_CHIP
 	help
 	  Choose this if you have a i.MX5/6 system and want to use the Image
-- 
2.10.0.297.gf6727b0