[PATCH 48/48] drm: omapdrm: dss: Store the registered plls array in struct dss_device
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Fri Oct 13 14:59:44 UTC 2017
As part of an effort to remove the usage of global variables in the
driver, store the registered plls array in the dss_device structure
instead of a global variable.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
drivers/gpu/drm/omapdrm/dss/dispc.c | 4 ++--
drivers/gpu/drm/omapdrm/dss/dpi.c | 17 +++++++-------
drivers/gpu/drm/omapdrm/dss/dsi.c | 3 +--
drivers/gpu/drm/omapdrm/dss/dss.h | 12 +++++-----
drivers/gpu/drm/omapdrm/dss/hdmi_pll.c | 3 +--
drivers/gpu/drm/omapdrm/dss/pll.c | 40 +++++++++++++++++----------------
drivers/gpu/drm/omapdrm/dss/video-pll.c | 3 +--
7 files changed, 42 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 5eacf4cdac54..181a8ea072b1 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -3252,7 +3252,7 @@ static unsigned long dispc_fclk_rate(struct dispc_device *dispc)
struct dss_pll *pll;
unsigned int clkout_idx;
- pll = dss_pll_find_by_src(src);
+ pll = dss_pll_find_by_src(dispc->dss, src);
clkout_idx = dss_pll_get_clkout_idx_for_src(src);
r = pll->cinfo.clkout[clkout_idx];
@@ -3280,7 +3280,7 @@ static unsigned long dispc_mgr_lclk_rate(struct dispc_device *dispc,
struct dss_pll *pll;
unsigned int clkout_idx;
- pll = dss_pll_find_by_src(src);
+ pll = dss_pll_find_by_src(dispc->dss, src);
clkout_idx = dss_pll_get_clkout_idx_for_src(src);
r = pll->cinfo.clkout[clkout_idx];
diff --git a/drivers/gpu/drm/omapdrm/dss/dpi.c b/drivers/gpu/drm/omapdrm/dss/dpi.c
index 66183fc77bb2..2fb9406d2059 100644
--- a/drivers/gpu/drm/omapdrm/dss/dpi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dpi.c
@@ -60,7 +60,8 @@ static struct dpi_data *dpi_get_data_from_dssdev(struct omap_dss_device *dssdev)
return container_of(dssdev, struct dpi_data, output);
}
-static enum dss_clk_source dpi_get_clk_src_dra7xx(enum omap_channel channel)
+static enum dss_clk_source dpi_get_clk_src_dra7xx(struct dpi_data *dpi,
+ enum omap_channel channel)
{
/*
* Possible clock sources:
@@ -72,23 +73,23 @@ static enum dss_clk_source dpi_get_clk_src_dra7xx(enum omap_channel channel)
switch (channel) {
case OMAP_DSS_CHANNEL_LCD:
{
- if (dss_pll_find_by_src(DSS_CLK_SRC_PLL1_1))
+ if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL1_1))
return DSS_CLK_SRC_PLL1_1;
break;
}
case OMAP_DSS_CHANNEL_LCD2:
{
- if (dss_pll_find_by_src(DSS_CLK_SRC_PLL1_3))
+ if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL1_3))
return DSS_CLK_SRC_PLL1_3;
- if (dss_pll_find_by_src(DSS_CLK_SRC_PLL2_3))
+ if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL2_3))
return DSS_CLK_SRC_PLL2_3;
break;
}
case OMAP_DSS_CHANNEL_LCD3:
{
- if (dss_pll_find_by_src(DSS_CLK_SRC_PLL2_1))
+ if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL2_1))
return DSS_CLK_SRC_PLL2_1;
- if (dss_pll_find_by_src(DSS_CLK_SRC_PLL1_3))
+ if (dss_pll_find_by_src(dpi->dss, DSS_CLK_SRC_PLL1_3))
return DSS_CLK_SRC_PLL1_3;
break;
}
@@ -135,7 +136,7 @@ static enum dss_clk_source dpi_get_clk_src(struct dpi_data *dpi)
}
case DSS_MODEL_DRA7:
- return dpi_get_clk_src_dra7xx(channel);
+ return dpi_get_clk_src_dra7xx(dpi, channel);
default:
return DSS_CLK_SRC_FCK;
@@ -603,7 +604,7 @@ static void dpi_init_pll(struct dpi_data *dpi)
dpi->clk_src = dpi_get_clk_src(dpi);
- pll = dss_pll_find_by_src(dpi->clk_src);
+ pll = dss_pll_find_by_src(dpi->dss, dpi->clk_src);
if (!pll)
return;
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 48ea5285cf20..bc9d6b7ce6a9 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -5226,9 +5226,8 @@ static int dsi_init_pll_data(struct dss_device *dss, struct dsi_data *dsi)
pll->base = dsi->pll_base;
pll->hw = dsi->data->pll_hw;
pll->ops = &dsi_pll_ops;
- pll->dss = dss;
- r = dss_pll_register(pll);
+ r = dss_pll_register(dss, pll);
if (r)
return r;
diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h b/drivers/gpu/drm/omapdrm/dss/dss.h
index 76a2561dfd22..9ca4391624cc 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.h
+++ b/drivers/gpu/drm/omapdrm/dss/dss.h
@@ -276,8 +276,9 @@ struct dss_device {
struct dss_debugfs_entry *dss;
} debugfs;
- struct dss_pll *video1_pll;
- struct dss_pll *video2_pll;
+ struct dss_pll *plls[4];
+ struct dss_pll *video1_pll;
+ struct dss_pll *video2_pll;
struct dispc_device *dispc;
};
@@ -499,10 +500,11 @@ typedef bool (*dss_pll_calc_func)(int n, int m, unsigned long fint,
typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc,
void *data);
-int dss_pll_register(struct dss_pll *pll);
+int dss_pll_register(struct dss_device *dss, struct dss_pll *pll);
void dss_pll_unregister(struct dss_pll *pll);
-struct dss_pll *dss_pll_find(const char *name);
-struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src);
+struct dss_pll *dss_pll_find(struct dss_device *dss, const char *name);
+struct dss_pll *dss_pll_find_by_src(struct dss_device *dss,
+ enum dss_clk_source src);
unsigned int dss_pll_get_clkout_idx_for_src(enum dss_clk_source src);
int dss_pll_enable(struct dss_pll *pll);
void dss_pll_disable(struct dss_pll *pll);
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
index 4da32c261c30..d1116757182e 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi_pll.c
@@ -146,7 +146,6 @@ static int hdmi_init_pll_data(struct dss_device *dss,
pll->id = DSS_PLL_HDMI;
pll->base = hpll->base;
pll->clkin = clk;
- pll->dss = dss;
if (hpll->wp->version == 4)
pll->hw = &dss_omap4_hdmi_pll_hw;
@@ -155,7 +154,7 @@ static int hdmi_init_pll_data(struct dss_device *dss,
pll->ops = &hdmi_pll_ops;
- r = dss_pll_register(pll);
+ r = dss_pll_register(dss, pll);
if (r)
return r;
diff --git a/drivers/gpu/drm/omapdrm/dss/pll.c b/drivers/gpu/drm/omapdrm/dss/pll.c
index d298cd5a927a..56fc2fccd0e0 100644
--- a/drivers/gpu/drm/omapdrm/dss/pll.c
+++ b/drivers/gpu/drm/omapdrm/dss/pll.c
@@ -35,15 +35,14 @@
#define PLL_SSC_CONFIGURATION2 0x001C
#define PLL_CONFIGURATION4 0x0020
-static struct dss_pll *dss_plls[4];
-
-int dss_pll_register(struct dss_pll *pll)
+int dss_pll_register(struct dss_device *dss, struct dss_pll *pll)
{
int i;
- for (i = 0; i < ARRAY_SIZE(dss_plls); ++i) {
- if (!dss_plls[i]) {
- dss_plls[i] = pll;
+ for (i = 0; i < ARRAY_SIZE(dss->plls); ++i) {
+ if (!dss->plls[i]) {
+ dss->plls[i] = pll;
+ pll->dss = dss;
return 0;
}
}
@@ -53,29 +52,32 @@ int dss_pll_register(struct dss_pll *pll)
void dss_pll_unregister(struct dss_pll *pll)
{
+ struct dss_device *dss = pll->dss;
int i;
- for (i = 0; i < ARRAY_SIZE(dss_plls); ++i) {
- if (dss_plls[i] == pll) {
- dss_plls[i] = NULL;
+ for (i = 0; i < ARRAY_SIZE(dss->plls); ++i) {
+ if (dss->plls[i] == pll) {
+ dss->plls[i] = NULL;
+ pll->dss = NULL;
return;
}
}
}
-struct dss_pll *dss_pll_find(const char *name)
+struct dss_pll *dss_pll_find(struct dss_device *dss, const char *name)
{
int i;
- for (i = 0; i < ARRAY_SIZE(dss_plls); ++i) {
- if (dss_plls[i] && strcmp(dss_plls[i]->name, name) == 0)
- return dss_plls[i];
+ for (i = 0; i < ARRAY_SIZE(dss->plls); ++i) {
+ if (dss->plls[i] && strcmp(dss->plls[i]->name, name) == 0)
+ return dss->plls[i];
}
return NULL;
}
-struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src)
+struct dss_pll *dss_pll_find_by_src(struct dss_device *dss,
+ enum dss_clk_source src)
{
struct dss_pll *pll;
@@ -85,22 +87,22 @@ struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src)
return NULL;
case DSS_CLK_SRC_HDMI_PLL:
- return dss_pll_find("hdmi");
+ return dss_pll_find(dss, "hdmi");
case DSS_CLK_SRC_PLL1_1:
case DSS_CLK_SRC_PLL1_2:
case DSS_CLK_SRC_PLL1_3:
- pll = dss_pll_find("dsi0");
+ pll = dss_pll_find(dss, "dsi0");
if (!pll)
- pll = dss_pll_find("video0");
+ pll = dss_pll_find(dss, "video0");
return pll;
case DSS_CLK_SRC_PLL2_1:
case DSS_CLK_SRC_PLL2_2:
case DSS_CLK_SRC_PLL2_3:
- pll = dss_pll_find("dsi1");
+ pll = dss_pll_find(dss, "dsi1");
if (!pll)
- pll = dss_pll_find("video1");
+ pll = dss_pll_find(dss, "video1");
return pll;
}
}
diff --git a/drivers/gpu/drm/omapdrm/dss/video-pll.c b/drivers/gpu/drm/omapdrm/dss/video-pll.c
index 989a5ee4433a..2ea50cbe53ab 100644
--- a/drivers/gpu/drm/omapdrm/dss/video-pll.c
+++ b/drivers/gpu/drm/omapdrm/dss/video-pll.c
@@ -188,9 +188,8 @@ struct dss_pll *dss_video_pll_init(struct dss_device *dss,
pll->base = pll_base;
pll->hw = &dss_dra7_video_pll_hw;
pll->ops = &dss_pll_ops;
- pll->dss = dss;
- r = dss_pll_register(pll);
+ r = dss_pll_register(dss, pll);
if (r)
return ERR_PTR(r);
--
Regards,
Laurent Pinchart
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