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-rw-r--r--drivers/video/omap2/dss/dpi.c13
-rw-r--r--drivers/video/omap2/dss/dss.c59
-rw-r--r--drivers/video/omap2/dss/dss.h13
-rw-r--r--drivers/video/omap2/dss/sdi.c19
4 files changed, 30 insertions, 74 deletions
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index bd48cde5356..16acdddc94e 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -117,7 +117,7 @@ struct dpi_clk_calc_ctx {
/* outputs */
struct dsi_clock_info dsi_cinfo;
- struct dss_clock_info dss_cinfo;
+ unsigned long long fck;
struct dispc_clock_info dispc_cinfo;
};
@@ -184,12 +184,11 @@ static bool dpi_calc_pll_cb(int regn, int regm, unsigned long fint,
dpi_calc_hsdiv_cb, ctx);
}
-static bool dpi_calc_dss_cb(int fckd, unsigned long fck, void *data)
+static bool dpi_calc_dss_cb(unsigned long fck, void *data)
{
struct dpi_clk_calc_ctx *ctx = data;
- ctx->dss_cinfo.fck = fck;
- ctx->dss_cinfo.fck_div = fckd;
+ ctx->fck = fck;
return dispc_div_calc(fck, ctx->pck_min, ctx->pck_max,
dpi_calc_dispc_cb, ctx);
@@ -286,13 +285,13 @@ static int dpi_set_dispc_clk(unsigned long pck_req, unsigned long *fck,
if (!ok)
return -EINVAL;
- r = dss_set_clock_div(&ctx.dss_cinfo);
+ r = dss_set_fck_rate(ctx.fck);
if (r)
return r;
dpi.mgr_config.clock_info = ctx.dispc_cinfo;
- *fck = ctx.dss_cinfo.fck;
+ *fck = ctx.fck;
*lck_div = ctx.dispc_cinfo.lck_div;
*pck_div = ctx.dispc_cinfo.pck_div;
@@ -495,7 +494,7 @@ static int dpi_check_timings(struct omap_dss_device *dssdev,
if (!ok)
return -EINVAL;
- fck = ctx.dss_cinfo.fck;
+ fck = ctx.fck;
}
lck_div = ctx.dispc_cinfo.lck_div;
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index e59577a2c41..c37d934e1a5 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -81,7 +81,6 @@ static struct {
unsigned long cache_req_pck;
unsigned long cache_prate;
- struct dss_clock_info cache_dss_cinfo;
struct dispc_clock_info cache_dispc_cinfo;
enum omap_dss_clk_source dsi_clk_source[MAX_NUM_DSI];
@@ -451,29 +450,6 @@ enum omap_dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel)
}
}
-/* calculate clock rates using dividers in cinfo */
-int dss_calc_clock_rates(struct dss_clock_info *cinfo)
-{
- if (dss.dpll4_m4_ck) {
- unsigned long prate;
-
- if (cinfo->fck_div > dss.feat->fck_div_max ||
- cinfo->fck_div == 0)
- return -EINVAL;
-
- prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
-
- cinfo->fck = prate / cinfo->fck_div *
- dss.feat->dss_fck_multiplier;
- } else {
- if (cinfo->fck_div != 0)
- return -EINVAL;
- cinfo->fck = clk_get_rate(dss.dss_clk);
- }
-
- return 0;
-}
-
bool dss_div_calc(unsigned long fck_min, dss_div_calc_func func, void *data)
{
int fckd, fckd_start, fckd_stop;
@@ -485,8 +461,7 @@ bool dss_div_calc(unsigned long fck_min, dss_div_calc_func func, void *data)
if (dss.dpll4_m4_ck == NULL) {
fck = clk_get_rate(dss.dss_clk);
- fckd = 1;
- return func(fckd, fck, data);
+ return func(fck, data);
}
fck_hw_max = dss_feat_get_param_max(FEAT_PARAM_DSS_FCK);
@@ -503,38 +478,35 @@ bool dss_div_calc(unsigned long fck_min, dss_div_calc_func func, void *data)
for (fckd = fckd_start; fckd >= fckd_stop; --fckd) {
fck = prate / fckd * m;
- if (func(fckd, fck, data))
+ if (func(fck, data))
return true;
}
return false;
}
-int dss_set_clock_div(struct dss_clock_info *cinfo)
+int dss_set_fck_rate(unsigned long rate)
{
+ DSSDBG("set fck to %lu\n", rate);
+
if (dss.dpll4_m4_ck) {
unsigned long prate;
+ unsigned m;
int r;
prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
- DSSDBG("dpll4_m4 = %ld\n", prate);
+ m = dss.feat->dss_fck_multiplier;
- r = clk_set_rate(dss.dpll4_m4_ck,
- DIV_ROUND_UP(prate, cinfo->fck_div));
+ r = clk_set_rate(dss.dpll4_m4_ck, rate * m);
if (r)
return r;
- } else {
- if (cinfo->fck_div != 0)
- return -EINVAL;
}
dss.dss_clk_rate = clk_get_rate(dss.dss_clk);
- WARN_ONCE(dss.dss_clk_rate != cinfo->fck,
+ WARN_ONCE(dss.dss_clk_rate != rate,
"clk rate mismatch: %lu != %lu", dss.dss_clk_rate,
- cinfo->fck);
-
- DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div);
+ rate);
return 0;
}
@@ -555,8 +527,8 @@ unsigned long dss_get_dispc_clk_rate(void)
static int dss_setup_default_clock(void)
{
unsigned long max_dss_fck, prate;
+ unsigned long fck;
unsigned fck_div;
- struct dss_clock_info dss_cinfo = { 0 };
int r;
if (dss.dpll4_m4_ck == NULL)
@@ -568,14 +540,9 @@ static int dss_setup_default_clock(void)
fck_div = DIV_ROUND_UP(prate * dss.feat->dss_fck_multiplier,
max_dss_fck);
+ fck = prate / fck_div * dss.feat->dss_fck_multiplier;
- dss_cinfo.fck_div = fck_div;
-
- r = dss_calc_clock_rates(&dss_cinfo);
- if (r)
- return r;
-
- r = dss_set_clock_div(&dss_cinfo);
+ r = dss_set_fck_rate(fck);
if (r)
return r;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index e172531d196..ead1960ad9d 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -100,14 +100,6 @@ enum dss_writeback_channel {
DSS_WB_LCD3_MGR = 7,
};
-struct dss_clock_info {
- /* rates that we get with dividers below */
- unsigned long fck;
-
- /* dividers */
- u16 fck_div;
-};
-
struct dispc_clock_info {
/* rates that we get with dividers below */
unsigned long lck;
@@ -251,10 +243,9 @@ void dss_set_venc_output(enum omap_dss_venc_type type);
void dss_set_dac_pwrdn_bgz(bool enable);
unsigned long dss_get_dpll4_rate(void);
-int dss_calc_clock_rates(struct dss_clock_info *cinfo);
-int dss_set_clock_div(struct dss_clock_info *cinfo);
+int dss_set_fck_rate(unsigned long rate);
-typedef bool (*dss_div_calc_func)(int fckd, unsigned long fck, void *data);
+typedef bool (*dss_div_calc_func)(unsigned long fck, void *data);
bool dss_div_calc(unsigned long fck_min, dss_div_calc_func func, void *data);
/* SDI */
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index ccc569ae7cc..221fd34c42f 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -46,7 +46,7 @@ static struct {
struct sdi_clk_calc_ctx {
unsigned long pck_min, pck_max;
- struct dss_clock_info dss_cinfo;
+ unsigned long long fck;
struct dispc_clock_info dispc_cinfo;
};
@@ -63,19 +63,18 @@ static bool dpi_calc_dispc_cb(int lckd, int pckd, unsigned long lck,
return true;
}
-static bool dpi_calc_dss_cb(int fckd, unsigned long fck, void *data)
+static bool dpi_calc_dss_cb(unsigned long fck, void *data)
{
struct sdi_clk_calc_ctx *ctx = data;
- ctx->dss_cinfo.fck = fck;
- ctx->dss_cinfo.fck_div = fckd;
+ ctx->fck = fck;
return dispc_div_calc(fck, ctx->pck_min, ctx->pck_max,
dpi_calc_dispc_cb, ctx);
}
static int sdi_calc_clock_div(unsigned long pclk,
- struct dss_clock_info *dss_cinfo,
+ unsigned long *fck,
struct dispc_clock_info *dispc_cinfo)
{
int i;
@@ -100,7 +99,7 @@ static int sdi_calc_clock_div(unsigned long pclk,
ok = dss_div_calc(ctx.pck_min, dpi_calc_dss_cb, &ctx);
if (ok) {
- *dss_cinfo = ctx.dss_cinfo;
+ *fck = ctx.fck;
*dispc_cinfo = ctx.dispc_cinfo;
return 0;
}
@@ -128,7 +127,7 @@ static int sdi_display_enable(struct omap_dss_device *dssdev)
{
struct omap_dss_device *out = &sdi.output;
struct omap_video_timings *t = &sdi.timings;
- struct dss_clock_info dss_cinfo;
+ unsigned long fck;
struct dispc_clock_info dispc_cinfo;
unsigned long pck;
int r;
@@ -150,13 +149,13 @@ static int sdi_display_enable(struct omap_dss_device *dssdev)
t->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
t->sync_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
- r = sdi_calc_clock_div(t->pixel_clock * 1000, &dss_cinfo, &dispc_cinfo);
+ r = sdi_calc_clock_div(t->pixel_clock * 1000, &fck, &dispc_cinfo);
if (r)
goto err_calc_clock_div;
sdi.mgr_config.clock_info = dispc_cinfo;
- pck = dss_cinfo.fck / dispc_cinfo.lck_div / dispc_cinfo.pck_div / 1000;
+ pck = fck / dispc_cinfo.lck_div / dispc_cinfo.pck_div / 1000;
if (pck != t->pixel_clock) {
DSSWARN("Could not find exact pixel clock. Requested %d kHz, "
@@ -169,7 +168,7 @@ static int sdi_display_enable(struct omap_dss_device *dssdev)
dss_mgr_set_timings(out->manager, t);
- r = dss_set_clock_div(&dss_cinfo);
+ r = dss_set_fck_rate(fck);
if (r)
goto err_set_dss_clock_div;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 10:39:54 +0000