[PATCH 07/10] drm/exynos/decon5433: merge different flag fields
Andrzej Hajda
a.hajda at samsung.com
Tue Oct 20 02:22:38 PDT 2015
Driver uses four different fields for internal flags. They can be merged
into one.
Signed-off-by: Andrzej Hajda <a.hajda at samsung.com>
---
drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 61 +++++++++++++--------------
1 file changed, 30 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 722c11a..265a77f 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -37,6 +37,13 @@ static const char * const decon_clks_name[] = {
"sclk_decon_eclk",
};
+enum decon_flag_bits {
+ BIT_CLKS_ENABLED,
+ BIT_IRQS_ENABLED,
+ BIT_WIN_UPDATED,
+ BIT_SUSPENDED
+};
+
struct decon_context {
struct device *dev;
struct drm_device *drm_dev;
@@ -44,15 +51,9 @@ struct decon_context {
struct exynos_drm_plane planes[WINDOWS_NR];
void __iomem *addr;
struct clk *clks[ARRAY_SIZE(decon_clks_name)];
- unsigned long irq_flags;
int pipe;
- bool suspended;
-
-#define BIT_CLKS_ENABLED 0
-#define BIT_IRQS_ENABLED 1
- unsigned long enabled;
+ unsigned long flags;
bool i80_if;
- atomic_t win_updated;
};
static const uint32_t decon_formats[] = {
@@ -74,10 +75,10 @@ static int decon_enable_vblank(struct exynos_drm_crtc *crtc)
struct decon_context *ctx = crtc->ctx;
u32 val;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return -EPERM;
- if (test_and_set_bit(0, &ctx->irq_flags)) {
+ if (test_and_set_bit(BIT_IRQS_ENABLED, &ctx->flags)) {
val = VIDINTCON0_INTEN;
if (ctx->i80_if)
val |= VIDINTCON0_FRAMEDONE;
@@ -94,10 +95,10 @@ static void decon_disable_vblank(struct exynos_drm_crtc *crtc)
{
struct decon_context *ctx = crtc->ctx;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
- if (test_and_clear_bit(0, &ctx->irq_flags))
+ if (test_and_clear_bit(BIT_IRQS_ENABLED, &ctx->flags))
writel(0, ctx->addr + DECON_VIDINTCON0);
}
@@ -114,7 +115,7 @@ static void decon_commit(struct exynos_drm_crtc *crtc)
struct drm_display_mode *m = &crtc->base.mode;
u32 val;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
/* enable clock gate */
@@ -231,7 +232,7 @@ static void decon_atomic_begin(struct exynos_drm_crtc *crtc,
{
struct decon_context *ctx = crtc->ctx;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
decon_shadow_protect_win(ctx, plane->zpos, true);
@@ -247,7 +248,7 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
unsigned int pitch = state->fb->pitches[0];
u32 val;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
val = COORDINATE_X(plane->crtc_x) | COORDINATE_Y(plane->crtc_y);
@@ -289,7 +290,7 @@ static void decon_disable_plane(struct exynos_drm_crtc *crtc,
struct decon_context *ctx = crtc->ctx;
unsigned int win = plane->zpos;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
decon_shadow_protect_win(ctx, win, true);
@@ -308,13 +309,13 @@ static void decon_atomic_flush(struct exynos_drm_crtc *crtc,
{
struct decon_context *ctx = crtc->ctx;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
decon_shadow_protect_win(ctx, plane->zpos, false);
if (ctx->i80_if)
- atomic_set(&ctx->win_updated, 1);
+ set_bit(BIT_WIN_UPDATED, &ctx->flags);
}
static void decon_swreset(struct decon_context *ctx)
@@ -346,11 +347,9 @@ static void decon_enable(struct exynos_drm_crtc *crtc)
int ret;
int i;
- if (!ctx->suspended)
+ if (!test_and_clear_bit(BIT_SUSPENDED, &ctx->flags))
return;
- ctx->suspended = false;
-
pm_runtime_get_sync(ctx->dev);
for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
@@ -359,10 +358,10 @@ static void decon_enable(struct exynos_drm_crtc *crtc)
goto err;
}
- set_bit(BIT_CLKS_ENABLED, &ctx->enabled);
+ set_bit(BIT_CLKS_ENABLED, &ctx->flags);
/* if vblank was enabled status, enable it again. */
- if (test_and_clear_bit(0, &ctx->irq_flags))
+ if (test_and_clear_bit(BIT_IRQS_ENABLED, &ctx->flags))
decon_enable_vblank(ctx->crtc);
decon_commit(ctx->crtc);
@@ -372,7 +371,7 @@ err:
while (--i >= 0)
clk_disable_unprepare(ctx->clks[i]);
- ctx->suspended = true;
+ set_bit(BIT_SUSPENDED, &ctx->flags);
}
static void decon_disable(struct exynos_drm_crtc *crtc)
@@ -380,7 +379,7 @@ static void decon_disable(struct exynos_drm_crtc *crtc)
struct decon_context *ctx = crtc->ctx;
int i;
- if (ctx->suspended)
+ if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
/*
@@ -396,21 +395,21 @@ static void decon_disable(struct exynos_drm_crtc *crtc)
for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++)
clk_disable_unprepare(ctx->clks[i]);
- clear_bit(BIT_CLKS_ENABLED, &ctx->enabled);
+ clear_bit(BIT_CLKS_ENABLED, &ctx->flags);
pm_runtime_put_sync(ctx->dev);
- ctx->suspended = true;
+ set_bit(BIT_SUSPENDED, &ctx->flags);
}
void decon_te_irq_handler(struct exynos_drm_crtc *crtc)
{
struct decon_context *ctx = crtc->ctx;
- if (!test_bit(BIT_CLKS_ENABLED, &ctx->enabled))
+ if (!test_bit(BIT_CLKS_ENABLED, &ctx->flags))
return;
- if (atomic_add_unless(&ctx->win_updated, -1, 0))
+ if (test_and_clear_bit(BIT_WIN_UPDATED, &ctx->flags))
decon_set_bits(ctx, DECON_TRIGCON, TRIGCON_SWTRIGCMD, ~0);
drm_crtc_handle_vblank(&ctx->crtc->base);
@@ -520,7 +519,7 @@ static irqreturn_t decon_vsync_irq_handler(int irq, void *dev_id)
struct decon_context *ctx = dev_id;
u32 val;
- if (!test_bit(BIT_CLKS_ENABLED, &ctx->enabled))
+ if (!test_bit(BIT_CLKS_ENABLED, &ctx->flags))
goto out;
val = readl(ctx->addr + DECON_VIDINTCON1);
@@ -541,7 +540,7 @@ static irqreturn_t decon_lcd_sys_irq_handler(int irq, void *dev_id)
u32 val;
int win;
- if (!test_bit(BIT_CLKS_ENABLED, &ctx->enabled))
+ if (!test_bit(BIT_CLKS_ENABLED, &ctx->flags))
goto out;
val = readl(ctx->addr + DECON_VIDINTCON1);
@@ -576,7 +575,7 @@ static int exynos5433_decon_probe(struct platform_device *pdev)
if (!ctx)
return -ENOMEM;
- ctx->suspended = true;
+ __set_bit(BIT_SUSPENDED, &ctx->flags);
ctx->dev = dev;
if (of_get_child_by_name(dev->of_node, "i80-if-timings"))
ctx->i80_if = true;
--
1.9.1
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