Thread (28 messages) 28 messages, 6 authors, 2019-04-08

Re: [PATCH v3 1/4] drm/bridge: sil_sii8620: depend on INPUT instead of selecting it.

From: Andrzej Hajda <hidden>
Date: 2019-03-27 14:13:45
Also in: dri-devel, lkml

+cc: dri-devel

On 27.03.2019 02:48, Ronald Tschalär wrote:
commit d6abe6df706c66d803e6dd4fe98c1b6b7f125a56 (drm/bridge:
sil_sii8620: do not have a dependency of RC_CORE) added a dependency on
INPUT. However, this causes problems with other drivers, in particular
an input driver that depends on MFD_INTEL_LPSS_PCI (to be added in a
future commit):

  drivers/clk/Kconfig:9:error: recursive dependency detected!
  drivers/clk/Kconfig:9:        symbol COMMON_CLK is selected by MFD_INTEL_LPSS
  drivers/mfd/Kconfig:566:      symbol MFD_INTEL_LPSS is selected by MFD_INTEL_LPSS_PCI
  drivers/mfd/Kconfig:580:      symbol MFD_INTEL_LPSS_PCI is implied by KEYBOARD_APPLESPI
  drivers/input/keyboard/Kconfig:73:    symbol KEYBOARD_APPLESPI depends on INPUT
  drivers/input/Kconfig:8:      symbol INPUT is selected by DRM_SIL_SII8620
  drivers/gpu/drm/bridge/Kconfig:83:    symbol DRM_SIL_SII8620 depends on DRM_BRIDGE
  drivers/gpu/drm/bridge/Kconfig:1:     symbol DRM_BRIDGE is selected by DRM_PL111
  drivers/gpu/drm/pl111/Kconfig:1:      symbol DRM_PL111 depends on COMMON_CLK

According to the docs, select should only be used for non-visible
symbols. Furthermore almost all other references to INPUT throughout the
kernel config are depends, not selects. Hence this change.

CC: Inki Dae <inki.dae@samsung.com>
CC: Andrzej Hajda <redacted>
Signed-off-by: Ronald Tschalär <redacted>

This is drm bridge driver, next time please cc it to dri-devel ML also.

Anyway this is not the solution we have agreed to.

Why have you abandoned the patch [1]? It needed just some minor
polishing, as I wrote in response to this mail.


[1]:
https://lore.kernel.org/lkml/20190124082423.23139-1-ronald@innovation.ch/T/#mf620df0b1583096a214d8e2e690387078583472f (local)


Regards

Andrzej

quoted hunk ↗ jump to hunk
---
 drivers/gpu/drm/bridge/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index 2fee47b0d50b..eabedc83f25c 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -83,9 +83,9 @@ config DRM_PARADE_PS8622
 config DRM_SIL_SII8620
 	tristate "Silicon Image SII8620 HDMI/MHL bridge"
 	depends on OF
+	depends on INPUT
 	select DRM_KMS_HELPER
 	imply EXTCON
-	select INPUT
 	select RC_CORE
 	help
 	  Silicon Image SII8620 HDMI/MHL bridge chip driver.
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