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path: root/drivers/gpu/drm/omapdrm/dss/dispc.c
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Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/dispc.c')
-rw-r--r--drivers/gpu/drm/omapdrm/dss/dispc.c91
1 files changed, 34 insertions, 57 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index f83608b69e68..7b78da6d51cf 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -3299,30 +3299,21 @@ static void dispc_mgr_get_lcd_divisor(enum omap_channel channel, int *lck_div,
static unsigned long dispc_fclk_rate(void)
{
- struct dss_pll *pll;
- unsigned long r = 0;
+ unsigned long r;
+ enum dss_clk_source src;
+
+ src = dss_get_dispc_clk_source();
- switch (dss_get_dispc_clk_source()) {
- case OMAP_DSS_CLK_SRC_FCK:
+ if (src == DSS_CLK_SRC_FCK) {
r = dss_get_dispc_clk_rate();
- break;
- case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
- pll = dss_pll_find("dsi0");
- if (!pll)
- pll = dss_pll_find("video0");
+ } else {
+ struct dss_pll *pll;
+ unsigned clkout_idx;
- r = pll->cinfo.clkout[0];
- break;
- case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
- pll = dss_pll_find("dsi1");
- if (!pll)
- pll = dss_pll_find("video1");
+ pll = dss_pll_find_by_src(src);
+ clkout_idx = dss_pll_get_clkout_idx_for_src(src);
- r = pll->cinfo.clkout[0];
- break;
- default:
- BUG();
- return 0;
+ r = pll->cinfo.clkout[clkout_idx];
}
return r;
@@ -3330,43 +3321,31 @@ static unsigned long dispc_fclk_rate(void)
static unsigned long dispc_mgr_lclk_rate(enum omap_channel channel)
{
- struct dss_pll *pll;
int lcd;
unsigned long r;
- u32 l;
+ enum dss_clk_source src;
- if (dss_mgr_is_lcd(channel)) {
- l = dispc_read_reg(DISPC_DIVISORo(channel));
-
- lcd = FLD_GET(l, 23, 16);
+ /* for TV, LCLK rate is the FCLK rate */
+ if (!dss_mgr_is_lcd(channel))
+ return dispc_fclk_rate();
- switch (dss_get_lcd_clk_source(channel)) {
- case OMAP_DSS_CLK_SRC_FCK:
- r = dss_get_dispc_clk_rate();
- break;
- case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
- pll = dss_pll_find("dsi0");
- if (!pll)
- pll = dss_pll_find("video0");
+ src = dss_get_lcd_clk_source(channel);
- r = pll->cinfo.clkout[0];
- break;
- case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
- pll = dss_pll_find("dsi1");
- if (!pll)
- pll = dss_pll_find("video1");
+ if (src == DSS_CLK_SRC_FCK) {
+ r = dss_get_dispc_clk_rate();
+ } else {
+ struct dss_pll *pll;
+ unsigned clkout_idx;
- r = pll->cinfo.clkout[0];
- break;
- default:
- BUG();
- return 0;
- }
+ pll = dss_pll_find_by_src(src);
+ clkout_idx = dss_pll_get_clkout_idx_for_src(src);
- return r / lcd;
- } else {
- return dispc_fclk_rate();
+ r = pll->cinfo.clkout[clkout_idx];
}
+
+ lcd = REG_GET(DISPC_DIVISORo(channel), 23, 16);
+
+ return r / lcd;
}
static unsigned long dispc_mgr_pclk_rate(enum omap_channel channel)
@@ -3426,15 +3405,14 @@ static unsigned long dispc_plane_lclk_rate(enum omap_plane plane)
static void dispc_dump_clocks_channel(struct seq_file *s, enum omap_channel channel)
{
int lcd, pcd;
- enum omap_dss_clk_source lcd_clk_src;
+ enum dss_clk_source lcd_clk_src;
seq_printf(s, "- %s -\n", mgr_desc[channel].name);
lcd_clk_src = dss_get_lcd_clk_source(channel);
- seq_printf(s, "%s clk source = %s (%s)\n", mgr_desc[channel].name,
- dss_get_generic_clk_source_name(lcd_clk_src),
- dss_feat_get_clk_source_name(lcd_clk_src));
+ seq_printf(s, "%s clk source = %s\n", mgr_desc[channel].name,
+ dss_get_clk_source_name(lcd_clk_src));
dispc_mgr_get_lcd_divisor(channel, &lcd, &pcd);
@@ -3448,16 +3426,15 @@ void dispc_dump_clocks(struct seq_file *s)
{
int lcd;
u32 l;
- enum omap_dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();
+ enum dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();
if (dispc_runtime_get())
return;
seq_printf(s, "- DISPC -\n");
- seq_printf(s, "dispc fclk source = %s (%s)\n",
- dss_get_generic_clk_source_name(dispc_clk_src),
- dss_feat_get_clk_source_name(dispc_clk_src));
+ seq_printf(s, "dispc fclk source = %s\n",
+ dss_get_clk_source_name(dispc_clk_src));
seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());