UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/exynos: Fix build breakage on !DRM_EXYNOS_FIMD 

Disabling the CONFIG_DRM_EXYNOS_FIMD (e.g. by enabling of CONFIG_FB_S3C)
leads to build error:

drivers/built-in.o: In function `exynos_dp_dpms':
binder.c:(.text+0xd6a840): undefined reference to `fimd_dp_clock_enable'
binder.c:(.text+0xd6ab54): undefined reference to `fimd_dp_clock_enable'

Fix this by changing direct call to fimd_dp_clock_enable() into optional
call to exynos_drm_crtc_ops->clock_enable(). Only the DRM_EXYNOS_FIMD
implements this op.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Krzysztof Kozlowski 2015-05-07 09:04:44 +09:00 committed by Inki Dae
parent d6b163026c
commit 48107d7b0d
4 changed files with 31 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/gpu/drm/exynos/exynos_dp_core.c
View File

@ -32,7 +32,6 @@
#include <drm/bridge/ptn3460.h>
#include "exynos_dp_core.h"
#include "exynos_drm_fimd.h"
#define ctx_from_connector(c) container_of(c, struct exynos_dp_device, \
connector)
@ -1066,6 +1065,8 @@ static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
static void exynos_dp_poweron(struct exynos_dp_device *dp)
{
struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
if (dp->dpms_mode == DRM_MODE_DPMS_ON)
return;
@ -1076,7 +1077,8 @@ static void exynos_dp_poweron(struct exynos_dp_device *dp)
}
}
fimd_dp_clock_enable(dp_to_crtc(dp), true);
if (crtc->ops->clock_enable)
crtc->ops->clock_enable(dp_to_crtc(dp), true);
clk_prepare_enable(dp->clock);
exynos_dp_phy_init(dp);
@ -1087,6 +1089,8 @@ static void exynos_dp_poweron(struct exynos_dp_device *dp)
static void exynos_dp_poweroff(struct exynos_dp_device *dp)
{
struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
if (dp->dpms_mode != DRM_MODE_DPMS_ON)
return;
@ -1102,7 +1106,8 @@ static void exynos_dp_poweroff(struct exynos_dp_device *dp)
exynos_dp_phy_exit(dp);
clk_disable_unprepare(dp->clock);
fimd_dp_clock_enable(dp_to_crtc(dp), false);
if (crtc->ops->clock_enable)
crtc->ops->clock_enable(dp_to_crtc(dp), false);
if (dp->panel) {
if (drm_panel_unprepare(dp->panel))

5
drivers/gpu/drm/exynos/exynos_drm_drv.h
View File

@ -181,6 +181,10 @@ struct exynos_drm_display {
* @win_disable: disable hardware specific overlay.
* @te_handler: trigger to transfer video image at the tearing effect
* synchronization signal if there is a page flip request.
* @clock_enable: optional function enabling/disabling display domain clock,
* called from exynos-dp driver before powering up (with
* 'enable' argument as true) and after powering down (with
* 'enable' as false).
*/
struct exynos_drm_crtc;
struct exynos_drm_crtc_ops {
@ -195,6 +199,7 @@ struct exynos_drm_crtc_ops {
void (*win_commit)(struct exynos_drm_crtc *crtc, unsigned int zpos);
void (*win_disable)(struct exynos_drm_crtc *crtc, unsigned int zpos);
void (*te_handler)(struct exynos_drm_crtc *crtc);
void (*clock_enable)(struct exynos_drm_crtc *crtc, bool enable);
};
/*

37
drivers/gpu/drm/exynos/exynos_drm_fimd.c
View File

@ -33,7 +33,6 @@
#include "exynos_drm_crtc.h"
#include "exynos_drm_plane.h"
#include "exynos_drm_iommu.h"
#include "exynos_drm_fimd.h"
/*
* FIMD stands for Fully Interactive Mobile Display and
@ -946,6 +945,23 @@ static void fimd_te_handler(struct exynos_drm_crtc *crtc)
drm_handle_vblank(ctx->drm_dev, ctx->pipe);
}
static void fimd_dp_clock_enable(struct exynos_drm_crtc *crtc, bool enable)
{
struct fimd_context *ctx = crtc->ctx;
u32 val;
/*
* Only Exynos 5250, 5260, 5410 and 542x requires enabling DP/MIE
* clock. On these SoCs the bootloader may enable it but any
* power domain off/on will reset it to disable state.
*/
if (ctx->driver_data != &exynos5_fimd_driver_data)
return;
val = enable ? DP_MIE_CLK_DP_ENABLE : DP_MIE_CLK_DISABLE;
writel(DP_MIE_CLK_DP_ENABLE, ctx->regs + DP_MIE_CLKCON);
}
static struct exynos_drm_crtc_ops fimd_crtc_ops = {
.dpms = fimd_dpms,
.mode_fixup = fimd_mode_fixup,
@ -956,6 +972,7 @@ static struct exynos_drm_crtc_ops fimd_crtc_ops = {
.win_commit = fimd_win_commit,
.win_disable = fimd_win_disable,
.te_handler = fimd_te_handler,
.clock_enable = fimd_dp_clock_enable,
};
static irqreturn_t fimd_irq_handler(int irq, void *dev_id)
@ -1192,24 +1209,6 @@ static int fimd_remove(struct platform_device *pdev)
return 0;
}
void fimd_dp_clock_enable(struct exynos_drm_crtc *crtc, bool enable)
{
struct fimd_context *ctx = crtc->ctx;
u32 val;
/*
* Only Exynos 5250, 5260, 5410 and 542x requires enabling DP/MIE
* clock. On these SoCs the bootloader may enable it but any
* power domain off/on will reset it to disable state.
*/
if (ctx->driver_data != &exynos5_fimd_driver_data)
return;
val = enable ? DP_MIE_CLK_DP_ENABLE : DP_MIE_CLK_DISABLE;
writel(DP_MIE_CLK_DP_ENABLE, ctx->regs + DP_MIE_CLKCON);
}
EXPORT_SYMBOL_GPL(fimd_dp_clock_enable);
struct platform_driver fimd_driver = {
.probe = fimd_probe,
.remove = fimd_remove,

15
drivers/gpu/drm/exynos/exynos_drm_fimd.h
View File

@ -1,15 +0,0 @@
/*
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef _EXYNOS_DRM_FIMD_H_
#define _EXYNOS_DRM_FIMD_H_
extern void fimd_dp_clock_enable(struct exynos_drm_crtc *crtc, bool enable);
#endif /* _EXYNOS_DRM_FIMD_H_ */