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drm/exynos/decon5433: configure sysreg in case of hardware trigger

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In case of HW trigger mode, sysreg register should be configured to
enable TE functionality. The patch refactors also trigger setup function.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Andrzej Hajda 2017-02-01 15:35:07 +09:00 committed by Inki Dae
parent 99743ae4c5
commit b93c2e8b5d
1 changed files with 32 additions and 8 deletions
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40
drivers/gpu/drm/exynos/exynos5433_drm_decon.c
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@ -13,9 +13,11 @@
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/mfd/syscon.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <video/exynos5433_decon.h>
@ -25,6 +27,9 @@
#include "exynos_drm_plane.h"
#include "exynos_drm_iommu.h"
#define DSD_CFG_MUX 0x1004
#define DSD_CFG_MUX_TE_UNMASK_GLOBAL BIT(13)
#define WINDOWS_NR 3
#define MIN_FB_WIDTH_FOR_16WORD_BURST 128
@ -57,6 +62,7 @@ struct decon_context {
struct exynos_drm_plane planes[WINDOWS_NR];
struct exynos_drm_plane_config configs[WINDOWS_NR];
void __iomem *addr;
struct regmap *sysreg;
struct clk *clks[ARRAY_SIZE(decon_clks_name)];
int pipe;
unsigned long flags;
@ -118,12 +124,22 @@ static void decon_disable_vblank(struct exynos_drm_crtc *crtc)
static void decon_setup_trigger(struct decon_context *ctx)
{
u32 val = !(ctx->out_type & I80_HW_TRG)
? TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F |
TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN
: TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F |
TRIGCON_HWTRIGMASK | TRIGCON_HWTRIGEN;
writel(val, ctx->addr + DECON_TRIGCON);
if (!(ctx->out_type & (IFTYPE_I80 | I80_HW_TRG)))
return;
if (!(ctx->out_type & I80_HW_TRG)) {
writel(TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN
| TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN,
ctx->addr + DECON_TRIGCON);
return;
}
writel(TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | TRIGCON_HWTRIGMASK
| TRIGCON_HWTRIGEN, ctx->addr + DECON_TRIGCON);
if (regmap_update_bits(ctx->sysreg, DSD_CFG_MUX,
DSD_CFG_MUX_TE_UNMASK_GLOBAL, ~0))
DRM_ERROR("Cannot update sysreg.\n");
}
static void decon_commit(struct exynos_drm_crtc *crtc)
@ -142,8 +158,7 @@ static void decon_commit(struct exynos_drm_crtc *crtc)
m->crtc_vsync_end = m->crtc_vsync_start + 1;
}
if (ctx->out_type & (IFTYPE_I80 | I80_HW_TRG))
decon_setup_trigger(ctx);
decon_setup_trigger(ctx);
/* lcd on and use command if */
val = VIDOUT_LCD_ON;
@ -637,6 +652,15 @@ static int exynos5433_decon_probe(struct platform_device *pdev)
ctx->out_type |= IFTYPE_I80;
}
if (ctx->out_type | I80_HW_TRG) {
ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
"samsung,disp-sysreg");
if (IS_ERR(ctx->sysreg)) {
dev_err(dev, "failed to get system register\n");
return PTR_ERR(ctx->sysreg);
}
}
for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
struct clk *clk;