drm/omap: cleanup dispc_fclk_rate()

With the new PLL helpers, we can clean up the dispc_fclk_rate(). This
will also make dispc_fclk_rate() support clock sources it didn't support
earlier.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 01994d0..7b78da6 100644 (file)
--- 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;
 
-       switch (dss_get_dispc_clk_source()) {
-       case DSS_CLK_SRC_FCK:
+       src = dss_get_dispc_clk_source();
+
+       if (src == DSS_CLK_SRC_FCK) {
                r = dss_get_dispc_clk_rate();
-               break;
-       case DSS_CLK_SRC_PLL1_1:
-               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 DSS_CLK_SRC_PLL2_1:
-               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;