drm: Remove linux/i2c.h from drm_crtc.h

drm_crtc.h has no need for linux/i2c.h, so don't include it.
Avoids useless rebuilds of the entire universe when
touching linux/i2c.h.

Quite a few placs do currently depend on linux/i2c.h without
actually including it directly. All of those need to be
fixed up.

v2: imx and mcde need linux/io.h for readl()/etc.

Acked-by: Sam Ravnborg <[e-mail]>
Acked-by: Jani Nikula <[e-mail]>
Signed-off-by: Ville Syrjälä <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/bridge/chrontel-ch7033.c

···
  */
 
 #include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/regmap.h>
 

drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c

···
 #include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/io.h>
 #include <linux/media-bus-format.h>
 #include <linux/module.h>
 #include <linux/of.h>

drivers/gpu/drm/bridge/lontium-lt9611.c

···
  */
 
 #include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/media-bus-format.h>
 #include <linux/module.h>

drivers/gpu/drm/bridge/lontium-lt9611uxc.c

···
 
 #include <linux/firmware.h>
 #include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/mutex.h>

drivers/gpu/drm/bridge/synopsys/dw-hdmi.c

···
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/hdmi.h>
+#include <linux/i2c.h>
 #include <linux/irq.h>
 #include <linux/module.h>
 #include <linux/mutex.h>

drivers/gpu/drm/exynos/exynos_dp.c

···
 #include <linux/component.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>

drivers/gpu/drm/i2c/tda998x_drv.c

···
 #include <linux/component.h>
 #include <linux/gpio/consumer.h>
 #include <linux/hdmi.h>
+#include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/platform_data/tda9950.h>
 #include <linux/irq.h>

drivers/gpu/drm/mcde/mcde_clk_div.c

···
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/clk-provider.h>
+#include <linux/io.h>
 #include <linux/regulator/consumer.h>
 
 #include "mcde_drm.h"

drivers/gpu/drm/panel/panel-simple.c

···
 
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
 #include <linux/media-bus-format.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>

drivers/gpu/drm/sti/sti_hdmi.c

···
 #include <linux/component.h>
 #include <linux/debugfs.h>
 #include <linux/hdmi.h>
+#include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>

drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c

···
 
 #include <linux/clk.h>
 #include <linux/component.h>
+#include <linux/i2c.h>
 #include <linux/iopoll.h>
 #include <linux/module.h>
 #include <linux/of_device.h>

include/drm/drm_crtc.h

···
 #ifndef __DRM_CRTC_H__
 #define __DRM_CRTC_H__
 
-#include <linux/i2c.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <drm/drm_modeset_lock.h>

include/drm/drm_encoder_slave.h

···
 #ifndef __DRM_ENCODER_SLAVE_H__
 #define __DRM_ENCODER_SLAVE_H__
 
+#include <linux/i2c.h>
+
 #include <drm/drm_crtc.h>
 #include <drm/drm_encoder.h>